Marine Weather and Tide Forecast for South Duxbury, MA
 | Sunrise 7:06 AM Sunset 4:42 PM Moonrise 9:19 AM Moonset 7:45 PM |
Marine Forecasts
NOTE: Zones were updated 3/20/2025. If your report is out of date, please click Edit
ANZ231 Cape Cod Bay- 105 Am Est Tue Jan 20 2026
.gale warning in effect until 9 am est this morning - .
Rest of tonight - W winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Wave detail: W 3 ft at 4 seconds and S 2 ft at 10 seconds. Light freezing spray.
Tue - W winds 15 to 20 kt with gusts up to 25 kt. Seas around 3 ft. Wave detail: W 3 ft at 4 seconds and se 2 ft at 10 seconds. Light freezing spray.
Tue night - W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 3 ft. Wave detail: W 3 ft at 4 seconds and se 1 foot at 9 seconds. Light freezing spray.
Wed - SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave detail: W 2 ft at 4 seconds and se 1 foot at 10 seconds.
Wed night through Thu night - W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave detail: S 3 ft at 4 seconds and se 1 foot at 10 seconds.
Fri - W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave detail: W 3 ft at 4 seconds and se 1 foot at 11 seconds.
Fri night and Sat - NW winds 20 to 25 kt with gusts up to 30 kt. Seas 3 to 5 ft. Freezing spray.
Sat night - NW winds 15 to 20 kt with gusts up to 25 kt. Seas 3 to 4 ft. Freezing spray. A chance of snow.
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 105 Am Est Tue Jan 20 2026
Synopsis for massachusetts and rhode island coastal waters - Gale force westerly wind gusts today with moderate freezing spray. High pressure will follow for Wednesday with weak low pressure bringing gusty winds on Thursday. High pressure arrives for the weekend.
7 Day Forecast for Marine Location Near South Duxbury, MA
NEW! Add second zone forecast
| Duxbury Click for Map Tue -- 12:05 AM EST 8.97 feet High Tide Tue -- 06:29 AM EST 1.32 feet Low Tide Tue -- 07:05 AM EST Sunrise Tue -- 08:18 AM EST Moonrise Tue -- 12:17 PM EST 10.49 feet High Tide Tue -- 04:42 PM EST Sunset Tue -- 06:44 PM EST Moonset Tue -- 07:01 PM EST 0.23 feet Low Tide Tide / Current data from XTide NOT FOR NAVIGATION |
Duxbury, Duxbury Harbor, Cape Cod Bay, Massachusetts, Tide feet
| 12 am |
| 9 |
| 1 am |
| 8.5 |
| 2 am |
| 7.2 |
| 3 am |
| 5.7 |
| 4 am |
| 4.2 |
| 5 am |
| 2.7 |
| 6 am |
| 1.5 |
| 7 am |
| 1.5 |
| 8 am |
| 3.1 |
| 9 am |
| 5.2 |
| 10 am |
| 7.2 |
| 11 am |
| 9.2 |
| 12 pm |
| 10.4 |
| 1 pm |
| 10.1 |
| 2 pm |
| 8.7 |
| 3 pm |
| 6.7 |
| 4 pm |
| 4.7 |
| 5 pm |
| 2.8 |
| 6 pm |
| 1 |
| 7 pm |
| 0.2 |
| 8 pm |
| 1 |
| 9 pm |
| 3 |
| 10 pm |
| 5 |
| 11 pm |
| 7.1 |
| Bournedale (depth 13 ft) Click for Map Flood direction 37 true Ebb direction 219 true Tue -- 12:47 AM EST -3.57 knots Max Ebb Tue -- 04:17 AM EST 0.00 knots Slack Tue -- 06:40 AM EST 3.47 knots Max Flood Tue -- 07:04 AM EST Sunrise Tue -- 08:17 AM EST Moonrise Tue -- 10:17 AM EST -0.00 knots Slack Tue -- 12:57 PM EST -4.21 knots Max Ebb Tue -- 04:38 PM EST 0.00 knots Slack Tue -- 04:42 PM EST Sunset Tue -- 06:44 PM EST Moonset Tue -- 07:09 PM EST 3.60 knots Max Flood Tue -- 11:02 PM EST -0.00 knots Slack Tide / Current data from XTide NOT FOR NAVIGATION |
Bournedale (depth 13 ft), Cape Cod Canal, Massachusetts Current, knots
| 12 am |
| -3.2 |
| 1 am |
| -3.5 |
| 2 am |
| -3.1 |
| 3 am |
| -2.3 |
| 4 am |
| -0.6 |
| 5 am |
| 1.6 |
| 6 am |
| 3.2 |
| 7 am |
| 3.4 |
| 8 am |
| 2.8 |
| 9 am |
| 1.9 |
| 10 am |
| 0.6 |
| 11 am |
| -1.5 |
| 12 pm |
| -3.5 |
| 1 pm |
| -4.2 |
| 2 pm |
| -3.7 |
| 3 pm |
| -2.7 |
| 4 pm |
| -1.3 |
| 5 pm |
| 0.8 |
| 6 pm |
| 2.8 |
| 7 pm |
| 3.6 |
| 8 pm |
| 3.3 |
| 9 pm |
| 2.7 |
| 10 pm |
| 1.8 |
| 11 pm |
| 0.1 |
FXUS61 KBOX 200655 AFDBOX
Area Forecast Discussion National Weather Service Boston/Norton MA 155 AM EST Tue Jan 20 2026
WHAT HAS CHANGED
There have been no sifnificant changes since the last forecast update.
KEY MESSAGES
- Cold and dry with wind chills in the teens or lower through Wednesday morning.
- Near-normal to warmer than normal temperatures midweek as a weak clipper the system brings some higher terrain light snow and light rain for the coastal plain Wednesday night.
- An Arctic airmass arrives Friday night with dangerous cold and wind chills and continues through the weekend. Monitoring a late- weekend coastal storm that poses a low risk at the moment for high impacts in Southern New England.
DISCUSSION
Key message 1...Cold and dry with wind chills in the teens or lower through Wednesday morning.
A cold front moving through early this morning will bring an arctic airmass to southern New England through Wednesday morning. With 925mb temperatures around -16C and 850mb temperatures near -22C, surface temperatures this afternoon will struggle to reach the mid- 20s. Any melted snow from yesterday will have already refrozen overnight, and untreated surfaces could be slippery for the morning commute. As winds pick up this morning to 15-25mph, wind chills/feel- like temperatures will plummet to near 0 for most of southern New England... low teens for the Cape/Islands. Winds drop off this evening as high pressure builds in just to the south. With clear skies, light winds, and fresh snowpack, overnight temperatures will drop into the single digits across the region, with low teens near the coasts.
Key Message 2...Near-normal to warmer than normal temperatures midweek as a weak clipper the system brings low chances of higher terrain snow showers and light rain for the coastal plain Wednesday night.
Temperatures will continue to moderate Wednesday night and Thursday as warmer southwest flow continues ahead of a broad, shallow mid level trough moving over the Great Lakes by Thursday. This will push 925 mb temps from -10C on Wednesday to around -1C on Thursday; we can expect this to result in much milder Thursday morning lows (20s to low 30s) and warmer than average highs Thursday (upper 30s to low 40s). This warm air is advected overhead on a robust LLJ, most of which should remain aloft overnight; however, we'll see breezy conditions especially over the waters. This accompanies a progressive Alberta clipper that slides through to our north on Thursday, ahead of which we'll see some light rain/high elevation snow showers Wednesday night. Very little moisture to work with with PWATs of 0.2" to 0.4" and as such expecting only a coating to a half inch of snow in the Worcester Hills and northern Berkshires.
Key Message 3...An Arctic airmass arrives Friday night with dangerous cold and wind chills and continues through the weekend.
Monitoring a late- weekend coastal storm that poses a low risk at the moment for high impacts in Southern New England.
We continue to expect a significant pattern change to end the week and carry us through the weekend courtesy of an intrusion of truly arctic air into the eastern CONUS. In New England we'll see a mostly dry cold front swing through sometime Friday ushering in the coldest air of the season so far. Global ensemble guidance has held steady (EPS) or increased (GEFS) the magnitude of the cold in the last 12- 24 hours with 850mb temps between -25 and -30C while ensemble situational awareness tables shows surface temps 3 standard deviations below normal. We're looking at actual temperatures dropping into the negative single digits (high terrain) and single digits Friday night onward, and this is accompanied by gusty winds making temperatures "feel like" -15 to -20 (high terrain) and the negative single digits.
Too soon to speak with any confidence on a storm that will be passing to our south late next weekend, potentially bringing a period of snow. At the moment signs point to the more significant impacts being contained south into the Mid-Atlantic and beyond.
Again, low confidence as the exact track with dictate who gets snow and how much. What's not in question is that we'll have plenty of cold air around.
AVIATION /06Z TUESDAY THROUGH SATURDAY/
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Today: High Confidence.
VFR. West winds gusting 20-25 knots, becoming light after sunset.
Tonight: High Confidence.
VFR. West winds 5-10 knots.
Wednesday: High Confidence.
VFR. Southwest winds 5-10 knots.
KBOS Terminal...
VFR. Gusty W winds 23-27 knots through this evening.
KBDL Terminal...
VFR. Increasing W winds through this evening with gusts of 20-25 knots.
Outlook /Wednesday Night through Saturday/...
Wednesday Night: Mainly VFR, with local MVFR possible. Breezy.
Slight chance RA, slight chance FZRA, slight chance SN.
Thursday: VFR. Breezy. Slight chance FZRA.
Thursday Night through Saturday: VFR. Breezy.
MARINE
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Rest of Today through Wednesday...
Cold front will bring a period of strong westerly winds to the waters tonight through Tuesday afternoon with gusts of 30-35 knots. Seas increase tonight highest in the southern waters at 10-13 feet, and 7-10 feet in the northern waters. Winds decrease quickly Tuesday night, with gusts dropping below 20 knots. Seas also gradually diminish to 4-6 feet. With cold arctic air moving offshore, expecting light freezing spray through Tuesday night as air temps drop into the 20s. Warming up Wednesday with lighter winds.
Outlook /Wednesday Night through Saturday/...
Wednesday Night: Moderate risk for Small Craft Advisory winds with gusts up to 30 kt. Areas of rough seas. Chance of freezing rain, slight chance of rain.
Thursday: Moderate risk for Small Craft Advisory winds with gusts up to 25 kt. Areas of rough seas. Slight chance of rain.
Thursday Night: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Local rough seas.
Friday: Moderate risk for Small Craft Advisory winds with gusts up to 30 kt. Seas up to 5 ft.
Friday Night: Strong winds with gusts up to 30 kt. Areas of rough seas. Freezing spray, slight chance of snow.
Saturday: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Local rough seas. Freezing spray, slight chance of snow.
BOX WATCHES/WARNINGS/ADVISORIES
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 7 PM EST this evening for ANZ230- 236.
Gale Warning until 9 AM EST this morning for ANZ231>235-237- 250-251-254>256.
Area Forecast Discussion National Weather Service Boston/Norton MA 155 AM EST Tue Jan 20 2026
WHAT HAS CHANGED
There have been no sifnificant changes since the last forecast update.
KEY MESSAGES
- Cold and dry with wind chills in the teens or lower through Wednesday morning.
- Near-normal to warmer than normal temperatures midweek as a weak clipper the system brings some higher terrain light snow and light rain for the coastal plain Wednesday night.
- An Arctic airmass arrives Friday night with dangerous cold and wind chills and continues through the weekend. Monitoring a late- weekend coastal storm that poses a low risk at the moment for high impacts in Southern New England.
DISCUSSION
Key message 1...Cold and dry with wind chills in the teens or lower through Wednesday morning.
A cold front moving through early this morning will bring an arctic airmass to southern New England through Wednesday morning. With 925mb temperatures around -16C and 850mb temperatures near -22C, surface temperatures this afternoon will struggle to reach the mid- 20s. Any melted snow from yesterday will have already refrozen overnight, and untreated surfaces could be slippery for the morning commute. As winds pick up this morning to 15-25mph, wind chills/feel- like temperatures will plummet to near 0 for most of southern New England... low teens for the Cape/Islands. Winds drop off this evening as high pressure builds in just to the south. With clear skies, light winds, and fresh snowpack, overnight temperatures will drop into the single digits across the region, with low teens near the coasts.
Key Message 2...Near-normal to warmer than normal temperatures midweek as a weak clipper the system brings low chances of higher terrain snow showers and light rain for the coastal plain Wednesday night.
Temperatures will continue to moderate Wednesday night and Thursday as warmer southwest flow continues ahead of a broad, shallow mid level trough moving over the Great Lakes by Thursday. This will push 925 mb temps from -10C on Wednesday to around -1C on Thursday; we can expect this to result in much milder Thursday morning lows (20s to low 30s) and warmer than average highs Thursday (upper 30s to low 40s). This warm air is advected overhead on a robust LLJ, most of which should remain aloft overnight; however, we'll see breezy conditions especially over the waters. This accompanies a progressive Alberta clipper that slides through to our north on Thursday, ahead of which we'll see some light rain/high elevation snow showers Wednesday night. Very little moisture to work with with PWATs of 0.2" to 0.4" and as such expecting only a coating to a half inch of snow in the Worcester Hills and northern Berkshires.
Key Message 3...An Arctic airmass arrives Friday night with dangerous cold and wind chills and continues through the weekend.
Monitoring a late- weekend coastal storm that poses a low risk at the moment for high impacts in Southern New England.
We continue to expect a significant pattern change to end the week and carry us through the weekend courtesy of an intrusion of truly arctic air into the eastern CONUS. In New England we'll see a mostly dry cold front swing through sometime Friday ushering in the coldest air of the season so far. Global ensemble guidance has held steady (EPS) or increased (GEFS) the magnitude of the cold in the last 12- 24 hours with 850mb temps between -25 and -30C while ensemble situational awareness tables shows surface temps 3 standard deviations below normal. We're looking at actual temperatures dropping into the negative single digits (high terrain) and single digits Friday night onward, and this is accompanied by gusty winds making temperatures "feel like" -15 to -20 (high terrain) and the negative single digits.
Too soon to speak with any confidence on a storm that will be passing to our south late next weekend, potentially bringing a period of snow. At the moment signs point to the more significant impacts being contained south into the Mid-Atlantic and beyond.
Again, low confidence as the exact track with dictate who gets snow and how much. What's not in question is that we'll have plenty of cold air around.
AVIATION /06Z TUESDAY THROUGH SATURDAY/
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Today: High Confidence.
VFR. West winds gusting 20-25 knots, becoming light after sunset.
Tonight: High Confidence.
VFR. West winds 5-10 knots.
Wednesday: High Confidence.
VFR. Southwest winds 5-10 knots.
KBOS Terminal...
VFR. Gusty W winds 23-27 knots through this evening.
KBDL Terminal...
VFR. Increasing W winds through this evening with gusts of 20-25 knots.
Outlook /Wednesday Night through Saturday/...
Wednesday Night: Mainly VFR, with local MVFR possible. Breezy.
Slight chance RA, slight chance FZRA, slight chance SN.
Thursday: VFR. Breezy. Slight chance FZRA.
Thursday Night through Saturday: VFR. Breezy.
MARINE
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
Rest of Today through Wednesday...
Cold front will bring a period of strong westerly winds to the waters tonight through Tuesday afternoon with gusts of 30-35 knots. Seas increase tonight highest in the southern waters at 10-13 feet, and 7-10 feet in the northern waters. Winds decrease quickly Tuesday night, with gusts dropping below 20 knots. Seas also gradually diminish to 4-6 feet. With cold arctic air moving offshore, expecting light freezing spray through Tuesday night as air temps drop into the 20s. Warming up Wednesday with lighter winds.
Outlook /Wednesday Night through Saturday/...
Wednesday Night: Moderate risk for Small Craft Advisory winds with gusts up to 30 kt. Areas of rough seas. Chance of freezing rain, slight chance of rain.
Thursday: Moderate risk for Small Craft Advisory winds with gusts up to 25 kt. Areas of rough seas. Slight chance of rain.
Thursday Night: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Local rough seas.
Friday: Moderate risk for Small Craft Advisory winds with gusts up to 30 kt. Seas up to 5 ft.
Friday Night: Strong winds with gusts up to 30 kt. Areas of rough seas. Freezing spray, slight chance of snow.
Saturday: Low risk for Small Craft Advisory winds with gusts up to 25 kt. Local rough seas. Freezing spray, slight chance of snow.
BOX WATCHES/WARNINGS/ADVISORIES
CT...None.
MA...None.
RI...None.
MARINE...Small Craft Advisory until 7 PM EST this evening for ANZ230- 236.
Gale Warning until 9 AM EST this morning for ANZ231>235-237- 250-251-254>256.
Wind History for Borden Flats Light at Fall River, MA
toggle option: (graph/table)
Link to 1 hour of 5 minute data for KGHG
Terminal Aerodrome Forecast (TAF) for KGHG
Wind History Graph: GHG
(wind in knots)
GEOS Local Image of north east
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