Marine Weather and Tide Forecast for Winthrop Town, MA
April 26, 2024 6:43 PM EDT (22:43 UTC) Change Location
 | Sunrise 5:43 AM Sunset 7:39 PM Moonrise 10:58 PM Moonset 6:51 AM |
ANZ230 Boston Harbor- 406 Pm Edt Fri Apr 26 2024
Tonight - S winds 5 to 10 kt, becoming sw after midnight. Waves 1 foot or less.
Sat - SW winds around 5 kt, becoming se 10 to 15 kt in the afternoon. Waves 1 foot or less.
Sat night - S winds 10 to 15 kt, becoming sw after midnight. Waves around 2 ft. A chance of showers after midnight.
Sun - SW winds 10 to 15 kt. Waves around 2 ft.
Sun night - SW winds 10 to 15 kt, becoming W after midnight. Waves around 2 ft in the evening, then 1 foot or less.
Mon and Mon night - SE winds 5 to 10 kt. Waves around 2 ft.
Tue - SE winds 5 to 10 kt. Waves around 2 ft.
Tue night and Wed - SE winds around 10 kt. Waves around 2 ft. A chance of showers.
Wed night - S winds around 10 kt. Waves around 2 ft.
seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
seas are reported as significant wave height, which is the average of the highest third of the waves. Individual wave heights may be more than twice the significant wave height.
ANZ200 406 Pm Edt Fri Apr 26 2024
Synopsis for massachusetts and rhode island coastal waters - High pressure builds into new england through Saturday. The high eventually shifts offshore later this weekend. This will allow a warm front to lift in and bring showers late Saturday night into early Sunday. The trailing cold front may slide through on Monday as low pressure drops from the north, followed by another low late Tuesday.
Area Discussion for - Boston, MA
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FXUS61 KBOX 261954 AFDBOX
Area Forecast Discussion National Weather Service Boston/Norton MA 354 PM EDT Fri Apr 26 2024
SYNOPSIS
High pressure over New England moves offshore tonight and remains offshore on Saturday. Another chilly night tonight but not as chilly as last night. Mostly sunny on Saturday, though increasing clouds with chances for light showers arrive early Sunday. Unsettled pattern sets up for Sunday into early next week, though the best chance for showers is around Tuesday or Wednesday. Temperatures turn quite mild for interior western New England Monday, but a backdoor cold front brings much cooler air to coastal areas.
NEAR TERM /UNTIL 6 AM SATURDAY MORNING/
355 PM Update:
Beautiful day outside today with a sprawling area of high pressure in control, leading to wall to wall sunshine and temps away from the coast having warmed into the upper 50s with a few areas reaching the 60 degree mark. Seabreezes near the coast have led to cooler temps in the upper 40s to around 50.
High pressure will continue to gradually shift ESE into the southern offshore waters tonight. Seabreezes should diminish around or shortly before sundown, setting the stage for another night of clear skies and light to calm winds. We should see good radiational cooling conditions develop again. Frost Advisories have been hoisted for several counties in CT, RI and eastern MA where the frost/freeze program is active; that being said, with temperatures running about 3-5 degrees warmer than yesterday, prospects for frost are a little more borderline than was the case last night. This was enough to hold Suffolk and eastern Norfolk Counties out of the Advisory, and it also could be more borderline in Hartford County and those counties around the Providence area but will be close enough to hoist for these locations. If you had planted early, even in areas outside where the Frost Advisory is in effect, take the necessary actions to protect your plants and crops from damage related to frost.
Following MOS based approaches to lows, lwos range from the upper 20s/around 30 in northwest MA, and around 33-36 for most everywhere, though upper 30s/around 40 in the Boston area.
SHORT TERM /6 AM SATURDAY MORNING THROUGH SATURDAY NIGHT/
355 PM Update:
Saturday:
High pressure continues to be anchored offshore on Sat, with a highly amplified upper level ridge begins to build into western New England. Expecting a good deal of sunshine again, with sea breezes again developing near the southern and eastern coasts as has been the case the last couple days. However will be seeing an increasing canopy of high clouds spreading in later in the day into western sections of SNE.
With temps gradually warming each day, continued strong heating combined with an increased WSW wind away from the immediate coast, it has the look of one of those pre-greenup spring days where temps overachieve available guidance by a significant margin. Highs Saturday away from the coasts should punch well into the 60s and wouldn't rule out some locations in the CT and Merrimack Valleys reaching 70 degrees. Noticeably cooler near shore with highs only in the 50s where seabreezes will govern.
Saturday Night:
Clouds that had been moving in later Sat aftn continue to lower, thicken and spread eastward through much of the night. This is in response to a burst of pretty strong warm and moist advection as upper ridge axis crests offshore. Some indication in guidance that lighter showers could develop in western MA/CT during the late- overnight to pre-dawn period, but think modeled QPF is overdone as low levels initially struggle to saturate up with several days of preceding dry weather. In fact there's quite a reservoir of dry subcloud air shown on model soundings which even in western areas only saturates enough to support light showers around 09-12z Sun.
Carried a 15-45% PoP mention for showers west of Providence, with highest chances near the Berkshires. This would be a relatively higher PoP but very low QPF scenario though.
With increasing overcast and warming temps aloft, lows project to be considerably warmer than prior nights with no chance for frost. Lows should only dip into the low to mid 40s, and a few of the urban centers may stay around the mid/upper 40s.
LONG TERM /SUNDAY THROUGH FRIDAY/
Key Points...
* Low chance for isolated showers Sunday and Monday. More widespread rain possible mid week
* Warming trend through much of next week, but a back door cold front will keep eastern SNE cooler then western SNE.
Sunday and Monday
The center of the high pressure drops south to the Carolinas, but the upper level ridge axis continues to stretch north in SNE. Being at the top of the ridge axis, weak vorticity impulses, along with weak mid level warm air advection will bring mid to high clouds and low chances for isolated showers both Sunday and Monday. High temperatures Sunday and Monday will be very dependent on a back door cold front working in. Guidance continues to struggle with how far inland the back door cold front will penetrate Sunday, and again on Monday. What will likely occur is that eastern SNE will see high temperatures in the low to mid 60s, while western SNE will see mid to upper 70s, with a chance at low 80s.
Tuesday through Friday
Upper level ridge axis begins to break down Tuesday into Wednesday as a weakening shortwave trough moves through the region. Details on exact timing and coverage of precip remains very uncertain with weak upper level forcing and large spread in the guidance. LREF probs for 0.25 inches of rain remain low, less then 30% each day through Friday. The temperature forecast remains very uncertain during this time period as another upper level ridge builds in to our west allowing another surface high pressure to build over the Gulf of Maine. This could bring continued onshore flow to the region along with continued back door cold fronts. Ensembles are still showing significant amount of spread with the 25th to 75th percentile for high temperatures ranging from the upper 50s to upper 70s across the region.
AVIATION /20Z FRIDAY THROUGH WEDNESDAY/
Forecast Confidence Levels:
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
18z TAF Update:
Through Tonight: High confidence.
VFR SKC. For this afternoon, light and variable winds, with seabreezes near the coasts should trending light S by 00z.
Light S winds for all areas overnight.
Saturday: High confidence.
VFR, although with an increasing canopy of high clouds late- day. Light SW winds increase thru the day to around 7-10 kt; though sea-breezes again develop near the coasts between 14-16z Sat.
Saturday Night: High confidence in trends though moderate on exact timing.
Cigs start VFR but will be steadily lowering. Best chance at sub-VFR ceilings and light rain showers is after 06z and mainly from ORH westward; cigs could be as low as IFR but think MVFR predominate for those interior western terminals. Still think we're looking at OVC VFR for eastern terminals. SW winds around 8-12 kt to start, but decrease to around 5-8 kt late. Low prob of low level wind shear south of I-90.
KBOS TAF...High confidence in TAF. VFR. Sea breeze winds will continue around 110-120 degrees at 10-12 kt until about 00z with SSE winds. Winds become light southerly tonight. Seabreezes again likely for Sat, following similar 14-16z timeframe as prior days.
KBDL TAF...High confidence in TAF. VFR. Light north winds most of today, but will trend southerly around 4-7 kt late today into tonight.
Outlook /Sunday through Wednesday/...
Sunday: Mainly VFR, with local IFR possible. Slight chance SHRA.
Sunday Night: VFR. Slight chance SHRA.
Monday: Mainly VFR, with local MVFR possible. Slight chance SHRA.
Monday Night: Mainly VFR, with local IFR possible. Slight chance SHRA.
Tuesday: Mainly VFR, with areas MVFR possible. Chance SHRA.
Tuesday Night: Mainly VFR, with areas IFR possible. Chance RA.
Wednesday: Mainly VFR, with areas IFR possible.
MARINE
Forecaster Confidence Levels:
Low - less than 30 percent.
Medium - 30 to 60 percent.
High - greater than 60 percent.
Tonight through Saturday Night: High confidence.
Pleasant boating weather conditions for mariners through most of Saturday, and while that should generally be the case into Saturday evening as well, there is a low chance for showers on the southern waters late Sat night into pre-dawn Sunday.
Light southerly winds tonight and into early on Sat. SW winds increase a bit to around 10-15 kt on Sat on all waters, though will become ESE on the eastern nearshore waters Sat late-morning to early evening. Seas mainly 3ft or less all waters.
Outlook /Sunday through Wednesday/...
Sunday through Sunday Night: Winds less than 25 kt. Slight chance of rain showers.
Monday: Winds less than 25 kt.
Monday Night through Tuesday: Winds less than 25 kt. Slight chance of rain showers.
Tuesday Night through Wednesday: Winds less than 25 kt. Seas locally approaching 5 ft. Slight chance of rain.
BOX WATCHES/WARNINGS/ADVISORIES
CT...Frost Advisory from 2 AM to 8 AM EDT Saturday for CTZ002>004.
MA...Frost Advisory from 2 AM to 8 AM EDT Saturday for MAZ007-014- 017>024.
RI...Frost Advisory from 2 AM to 8 AM EDT Saturday for RIZ001>007.
MARINE...None.
Area Forecast Discussion National Weather Service Boston/Norton MA 354 PM EDT Fri Apr 26 2024
SYNOPSIS
High pressure over New England moves offshore tonight and remains offshore on Saturday. Another chilly night tonight but not as chilly as last night. Mostly sunny on Saturday, though increasing clouds with chances for light showers arrive early Sunday. Unsettled pattern sets up for Sunday into early next week, though the best chance for showers is around Tuesday or Wednesday. Temperatures turn quite mild for interior western New England Monday, but a backdoor cold front brings much cooler air to coastal areas.
NEAR TERM /UNTIL 6 AM SATURDAY MORNING/
355 PM Update:
Beautiful day outside today with a sprawling area of high pressure in control, leading to wall to wall sunshine and temps away from the coast having warmed into the upper 50s with a few areas reaching the 60 degree mark. Seabreezes near the coast have led to cooler temps in the upper 40s to around 50.
High pressure will continue to gradually shift ESE into the southern offshore waters tonight. Seabreezes should diminish around or shortly before sundown, setting the stage for another night of clear skies and light to calm winds. We should see good radiational cooling conditions develop again. Frost Advisories have been hoisted for several counties in CT, RI and eastern MA where the frost/freeze program is active; that being said, with temperatures running about 3-5 degrees warmer than yesterday, prospects for frost are a little more borderline than was the case last night. This was enough to hold Suffolk and eastern Norfolk Counties out of the Advisory, and it also could be more borderline in Hartford County and those counties around the Providence area but will be close enough to hoist for these locations. If you had planted early, even in areas outside where the Frost Advisory is in effect, take the necessary actions to protect your plants and crops from damage related to frost.
Following MOS based approaches to lows, lwos range from the upper 20s/around 30 in northwest MA, and around 33-36 for most everywhere, though upper 30s/around 40 in the Boston area.
SHORT TERM /6 AM SATURDAY MORNING THROUGH SATURDAY NIGHT/
355 PM Update:
Saturday:
High pressure continues to be anchored offshore on Sat, with a highly amplified upper level ridge begins to build into western New England. Expecting a good deal of sunshine again, with sea breezes again developing near the southern and eastern coasts as has been the case the last couple days. However will be seeing an increasing canopy of high clouds spreading in later in the day into western sections of SNE.
With temps gradually warming each day, continued strong heating combined with an increased WSW wind away from the immediate coast, it has the look of one of those pre-greenup spring days where temps overachieve available guidance by a significant margin. Highs Saturday away from the coasts should punch well into the 60s and wouldn't rule out some locations in the CT and Merrimack Valleys reaching 70 degrees. Noticeably cooler near shore with highs only in the 50s where seabreezes will govern.
Saturday Night:
Clouds that had been moving in later Sat aftn continue to lower, thicken and spread eastward through much of the night. This is in response to a burst of pretty strong warm and moist advection as upper ridge axis crests offshore. Some indication in guidance that lighter showers could develop in western MA/CT during the late- overnight to pre-dawn period, but think modeled QPF is overdone as low levels initially struggle to saturate up with several days of preceding dry weather. In fact there's quite a reservoir of dry subcloud air shown on model soundings which even in western areas only saturates enough to support light showers around 09-12z Sun.
Carried a 15-45% PoP mention for showers west of Providence, with highest chances near the Berkshires. This would be a relatively higher PoP but very low QPF scenario though.
With increasing overcast and warming temps aloft, lows project to be considerably warmer than prior nights with no chance for frost. Lows should only dip into the low to mid 40s, and a few of the urban centers may stay around the mid/upper 40s.
LONG TERM /SUNDAY THROUGH FRIDAY/
Key Points...
* Low chance for isolated showers Sunday and Monday. More widespread rain possible mid week
* Warming trend through much of next week, but a back door cold front will keep eastern SNE cooler then western SNE.
Sunday and Monday
The center of the high pressure drops south to the Carolinas, but the upper level ridge axis continues to stretch north in SNE. Being at the top of the ridge axis, weak vorticity impulses, along with weak mid level warm air advection will bring mid to high clouds and low chances for isolated showers both Sunday and Monday. High temperatures Sunday and Monday will be very dependent on a back door cold front working in. Guidance continues to struggle with how far inland the back door cold front will penetrate Sunday, and again on Monday. What will likely occur is that eastern SNE will see high temperatures in the low to mid 60s, while western SNE will see mid to upper 70s, with a chance at low 80s.
Tuesday through Friday
Upper level ridge axis begins to break down Tuesday into Wednesday as a weakening shortwave trough moves through the region. Details on exact timing and coverage of precip remains very uncertain with weak upper level forcing and large spread in the guidance. LREF probs for 0.25 inches of rain remain low, less then 30% each day through Friday. The temperature forecast remains very uncertain during this time period as another upper level ridge builds in to our west allowing another surface high pressure to build over the Gulf of Maine. This could bring continued onshore flow to the region along with continued back door cold fronts. Ensembles are still showing significant amount of spread with the 25th to 75th percentile for high temperatures ranging from the upper 50s to upper 70s across the region.
AVIATION /20Z FRIDAY THROUGH WEDNESDAY/
Forecast Confidence Levels:
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
18z TAF Update:
Through Tonight: High confidence.
VFR SKC. For this afternoon, light and variable winds, with seabreezes near the coasts should trending light S by 00z.
Light S winds for all areas overnight.
Saturday: High confidence.
VFR, although with an increasing canopy of high clouds late- day. Light SW winds increase thru the day to around 7-10 kt; though sea-breezes again develop near the coasts between 14-16z Sat.
Saturday Night: High confidence in trends though moderate on exact timing.
Cigs start VFR but will be steadily lowering. Best chance at sub-VFR ceilings and light rain showers is after 06z and mainly from ORH westward; cigs could be as low as IFR but think MVFR predominate for those interior western terminals. Still think we're looking at OVC VFR for eastern terminals. SW winds around 8-12 kt to start, but decrease to around 5-8 kt late. Low prob of low level wind shear south of I-90.
KBOS TAF...High confidence in TAF. VFR. Sea breeze winds will continue around 110-120 degrees at 10-12 kt until about 00z with SSE winds. Winds become light southerly tonight. Seabreezes again likely for Sat, following similar 14-16z timeframe as prior days.
KBDL TAF...High confidence in TAF. VFR. Light north winds most of today, but will trend southerly around 4-7 kt late today into tonight.
Outlook /Sunday through Wednesday/...
Sunday: Mainly VFR, with local IFR possible. Slight chance SHRA.
Sunday Night: VFR. Slight chance SHRA.
Monday: Mainly VFR, with local MVFR possible. Slight chance SHRA.
Monday Night: Mainly VFR, with local IFR possible. Slight chance SHRA.
Tuesday: Mainly VFR, with areas MVFR possible. Chance SHRA.
Tuesday Night: Mainly VFR, with areas IFR possible. Chance RA.
Wednesday: Mainly VFR, with areas IFR possible.
MARINE
Forecaster Confidence Levels:
Low - less than 30 percent.
Medium - 30 to 60 percent.
High - greater than 60 percent.
Tonight through Saturday Night: High confidence.
Pleasant boating weather conditions for mariners through most of Saturday, and while that should generally be the case into Saturday evening as well, there is a low chance for showers on the southern waters late Sat night into pre-dawn Sunday.
Light southerly winds tonight and into early on Sat. SW winds increase a bit to around 10-15 kt on Sat on all waters, though will become ESE on the eastern nearshore waters Sat late-morning to early evening. Seas mainly 3ft or less all waters.
Outlook /Sunday through Wednesday/...
Sunday through Sunday Night: Winds less than 25 kt. Slight chance of rain showers.
Monday: Winds less than 25 kt.
Monday Night through Tuesday: Winds less than 25 kt. Slight chance of rain showers.
Tuesday Night through Wednesday: Winds less than 25 kt. Seas locally approaching 5 ft. Slight chance of rain.
BOX WATCHES/WARNINGS/ADVISORIES
CT...Frost Advisory from 2 AM to 8 AM EDT Saturday for CTZ002>004.
MA...Frost Advisory from 2 AM to 8 AM EDT Saturday for MAZ007-014- 017>024.
RI...Frost Advisory from 2 AM to 8 AM EDT Saturday for RIZ001>007.
MARINE...None.
| Stations | Dist | Age | Wind | Air Temp | Water Temp | Waves | inHg | DewPt |
| BHBM3 - 8443970 - Boston, MA | 4 mi | 56 min | 30.46 | |||||
| 44013 - BOSTON 16 NM East of Boston, MA | 18 mi | 44 min | SSE 9.7G | 45°F | 45°F | 30.49 | 32°F | |
| 44029 - Buoy A0102 - Mass. Bay/Stellwagen | 25 mi | 100 min | SSE 9.7G | 46°F | 46°F | 1 ft | 30.48 | |
| FOXR1 - 8454000 - Providence, RI | 45 mi | 56 min | SSE 17G | 49°F | 30.47 | |||
| IOSN3 - Isle of Shoals, NH | 45 mi | 44 min | SSE 15G | 46°F | 30.44 | 25°F | ||
| 44018 - SE Cape Cod 30NM East of Nantucket, MA | 46 mi | 64 min | 46°F | 1 ft | ||||
| PVDR1 | 46 mi | 56 min | SSE 13G | 30.48 | ||||
| BGXN3 - Great Bay Reserve, NH | 48 mi | 119 min | SE 5.1 | 51°F | 30.45 | 22°F | ||
| BLTM3 - 8447387 - Borden Flats Light at Fall River, MA | 48 mi | 56 min | S 7G | 30.48 | ||||
| FRVM3 - 8447386 - Fall River, MA | 48 mi | 56 min | 51°F | 30.50 | ||||
| FRXM3 | 48 mi | 74 min | 53°F | 27°F |
toggle option: (graph/table)
Airport Reports
EDIT (hide/show) Help Click EDIT to display multiple airports. Follow links for more data.| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Temp | DewPt | RH | inHg |
| KBOS GENERAL EDWARD LAWRENCE LOGAN INTL,MA | 2 sm | 49 min | E 13 | 10 sm | Clear | 50°F | 25°F | 37% | 30.46 | |
| KBVY BEVERLY RGNL,MA | 14 sm | 50 min | SE 10 | 10 sm | Clear | 48°F | 23°F | 37% | 30.46 | |
| KOWD NORWOOD MEMORIAL,MA | 16 sm | 50 min | SE 07 | 10 sm | Clear | 57°F | 25°F | 29% | 30.45 | |
| KBED LAURENCE G HANSCOM FLD,MA | 17 sm | 52 min | SE 08 | 10 sm | Clear | 54°F | 23°F | 30% | 30.43 | |
| KLWM LAWRENCE MUNI,MA | 24 sm | 49 min | SE 07 | 10 sm | Clear | 54°F | 25°F | 32% | 30.45 |
Tide / Current for Belle Isle Inlet entrance, Boston Harbor, Massachusetts
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Belle Isle Inlet entrance
Click for Map
Fri -- 01:37 AM EDT 10.21 feet High Tide
Fri -- 05:45 AM EDT Sunrise
Fri -- 06:51 AM EDT Moonset
Fri -- 07:57 AM EDT 0.08 feet Low Tide
Fri -- 02:12 PM EDT 9.10 feet High Tide
Fri -- 07:38 PM EDT Sunset
Fri -- 08:05 PM EDT 1.20 feet Low Tide
Fri -- 10:57 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 01:37 AM EDT 10.21 feet High Tide
Fri -- 05:45 AM EDT Sunrise
Fri -- 06:51 AM EDT Moonset
Fri -- 07:57 AM EDT 0.08 feet Low Tide
Fri -- 02:12 PM EDT 9.10 feet High Tide
Fri -- 07:38 PM EDT Sunset
Fri -- 08:05 PM EDT 1.20 feet Low Tide
Fri -- 10:57 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Belle Isle Inlet entrance, Boston Harbor, Massachusetts, Tide feet
| 12 am |
| 8.7 |
| 1 am |
| 10 |
| 2 am |
| 10.1 |
| 3 am |
| 9.1 |
| 4 am |
| 7.1 |
| 5 am |
| 4.8 |
| 6 am |
| 2.6 |
| 7 am |
| 0.8 |
| 8 am |
| 0.1 |
| 9 am |
| 0.8 |
| 10 am |
| 2.6 |
| 11 am |
| 4.6 |
| 12 pm |
| 6.6 |
| 1 pm |
| 8.3 |
| 2 pm |
| 9.1 |
| 3 pm |
| 8.7 |
| 4 pm |
| 7.4 |
| 5 pm |
| 5.6 |
| 6 pm |
| 3.6 |
| 7 pm |
| 2 |
| 8 pm |
| 1.2 |
| 9 pm |
| 1.8 |
| 10 pm |
| 3.5 |
| 11 pm |
| 5.6 |
Boston Harbor
Click for Map
Fri -- 12:57 AM EDT -0.00 knots Slack
Fri -- 04:17 AM EDT -1.14 knots Max Ebb
Fri -- 05:45 AM EDT Sunrise
Fri -- 06:51 AM EDT Moonset
Fri -- 07:45 AM EDT 0.00 knots Slack
Fri -- 09:54 AM EDT 1.12 knots Max Flood
Fri -- 01:19 PM EDT -0.00 knots Slack
Fri -- 04:22 PM EDT -0.97 knots Max Ebb
Fri -- 07:38 PM EDT Sunset
Fri -- 07:53 PM EDT 0.00 knots Slack
Fri -- 10:07 PM EDT 1.25 knots Max Flood
Fri -- 10:57 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Click for Map
Fri -- 12:57 AM EDT -0.00 knots Slack
Fri -- 04:17 AM EDT -1.14 knots Max Ebb
Fri -- 05:45 AM EDT Sunrise
Fri -- 06:51 AM EDT Moonset
Fri -- 07:45 AM EDT 0.00 knots Slack
Fri -- 09:54 AM EDT 1.12 knots Max Flood
Fri -- 01:19 PM EDT -0.00 knots Slack
Fri -- 04:22 PM EDT -0.97 knots Max Ebb
Fri -- 07:38 PM EDT Sunset
Fri -- 07:53 PM EDT 0.00 knots Slack
Fri -- 10:07 PM EDT 1.25 knots Max Flood
Fri -- 10:57 PM EDT Moonrise
Tide / Current data from XTide NOT FOR NAVIGATION
Boston Harbor, Massachusetts Current, knots
| 12 am |
| 0.6 |
| 1 am |
| -0 |
| 2 am |
| -0.6 |
| 3 am |
| -1 |
| 4 am |
| -1.1 |
| 5 am |
| -1.1 |
| 6 am |
| -1 |
| 7 am |
| -0.6 |
| 8 am |
| 0.2 |
| 9 am |
| 0.9 |
| 10 am |
| 1.1 |
| 11 am |
| 1 |
| 12 pm |
| 0.8 |
| 1 pm |
| 0.2 |
| 2 pm |
| -0.4 |
| 3 pm |
| -0.8 |
| 4 pm |
| -1 |
| 5 pm |
| -0.9 |
| 6 pm |
| -0.8 |
| 7 pm |
| -0.6 |
| 8 pm |
| 0.1 |
| 9 pm |
| 0.9 |
| 10 pm |
| 1.2 |
| 11 pm |
| 1.1 |
Boston, MA,
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