Marine Weather and Tide Forecast for North Eastham, MA
 | Sunrise 5:38 AM Sunset 7:55 PM Moonrise 10:32 PM Moonset 11:58 AM |
Marine Forecasts
NOTE: Zones updated 4/16/2026. Some zones changed. Use Edit if needed.
ANZ231 Cape Cod Bay- 1004 Am Edt Tue Aug 4 2026
This afternoon - W winds around 5 kt, becoming s. Seas around 2 ft. Wave detail: se 2 ft at 8 seconds and W 1 foot at 3 seconds.
Tonight - SW winds 5 to 10 kt. Seas 1 foot or less. Wave detail: sw 1 foot at 2 seconds and S 1 foot at 7 seconds.
Wed - NW winds around 5 kt, becoming S in the afternoon. Seas 1 foot or less, then around 2 ft in the afternoon. Wave detail: sw 1 foot at 2 seconds and S 1 foot at 7 seconds, becoming sw 1 foot at 2 seconds and se 1 foot at 7 seconds.
Wed night - SW winds 5 to 10 kt. Seas around 2 ft in the evening, then 1 foot or less. Wave detail: sw 1 foot at 2 seconds and S 1 foot at 7 seconds.
Thu and Thu night - SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave detail: sw 1 foot at 2 seconds and S 1 foot at 7 seconds.
Fri through Sat night - SW winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave detail: se 2 ft at 9 seconds and sw 1 foot at 2 seconds.
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 1004 Am Edt Tue Aug 4 2026
Synopsis for massachusetts and rhode island coastal waters - Sca conditions persist as low pressure brings heavy rain and gusty winds through this evening. Seas build to between 5 and 7 feet across the outer waters and winds increase to between 15 and 20 kt. Chance for isolated gale conditions across buzzards bay and nantucket sound Monday afternoon. A few weak disturbances arrive next week but impacts to boaters should be minimal.
7 Day Forecast for Marine Location Near North Eastham, MA
NEW! Add second zone forecast
| Wellfleet Click for Map Tue -- 03:51 AM EDT 10.19 feet High Tide Tue -- 05:36 AM EDT Sunrise Tue -- 10:19 AM EDT 0.49 feet Low Tide Tue -- 11:57 AM EDT Moonset Tue -- 04:14 PM EDT 10.64 feet High Tide Tue -- 07:54 PM EDT Sunset Tue -- 10:32 PM EDT Moonrise Tue -- 10:50 PM EDT 0.60 feet Low Tide Tide / Current data from XTide NOT FOR NAVIGATION |
Wellfleet, Cape Cod Bay, Massachusetts, Tide feet
| 12 am |
| 3.5 |
| 1 am |
| 5.9 |
| 2 am |
| 8 |
| 3 am |
| 9.7 |
| 4 am |
| 10.2 |
| 5 am |
| 9.4 |
| 6 am |
| 7.8 |
| 7 am |
| 5.6 |
| 8 am |
| 3.4 |
| 9 am |
| 1.6 |
| 10 am |
| 0.6 |
| 11 am |
| 0.9 |
| 12 pm |
| 2.7 |
| 1 pm |
| 5.2 |
| 2 pm |
| 7.6 |
| 3 pm |
| 9.6 |
| 4 pm |
| 10.6 |
| 5 pm |
| 10.3 |
| 6 pm |
| 8.9 |
| 7 pm |
| 6.9 |
| 8 pm |
| 4.6 |
| 9 pm |
| 2.6 |
| 10 pm |
| 1.1 |
| 11 pm |
| 0.6 |
| Stage Harbor Click for Map Flood direction 335 true Ebb direction 144 true Tue -- 04:14 AM EDT -0.00 knots Slack Tue -- 05:37 AM EDT Sunrise Tue -- 09:00 AM EDT -1.15 knots Max Ebb Tue -- 10:42 AM EDT 0.00 knots Slack Tue -- 11:56 AM EDT Moonset Tue -- 12:17 PM EDT 0.63 knots Max Flood Tue -- 04:41 PM EDT -0.00 knots Slack Tue -- 07:54 PM EDT Sunset Tue -- 09:26 PM EDT -1.13 knots Max Ebb Tue -- 10:32 PM EDT Moonrise Tue -- 11:09 PM EDT 0.00 knots Slack Tide / Current data from XTide NOT FOR NAVIGATION |
Stage Harbor, west of Morris Island, Nantucket Sound, Massachusetts Current, knots
| 12 am |
| 0.6 |
| 1 am |
| 0.6 |
| 2 am |
| 0.4 |
| 3 am |
| 0.3 |
| 4 am |
| 0.1 |
| 5 am |
| -0.3 |
| 6 am |
| -0.6 |
| 7 am |
| -0.9 |
| 8 am |
| -1.1 |
| 9 am |
| -1.1 |
| 10 am |
| -0.7 |
| 11 am |
| 0.2 |
| 12 pm |
| 0.6 |
| 1 pm |
| 0.6 |
| 2 pm |
| 0.5 |
| 3 pm |
| 0.4 |
| 4 pm |
| 0.2 |
| 5 pm |
| -0.1 |
| 6 pm |
| -0.5 |
| 7 pm |
| -0.8 |
| 8 pm |
| -1 |
| 9 pm |
| -1.1 |
| 10 pm |
| -1 |
| 11 pm |
| -0.2 |
FXUS61 KBOX 041302 AFDBOX
Area Forecast Discussion National Weather Service Boston/Norton MA 902 AM EDT Tue Aug 4 2026
WHAT HAS CHANGED
Forecast remains on track.
KEY MESSAGES
- Dry and seasonable today, but summer heat and humidity returns Wed through the weekend. Diurnal scattered thunderstorms possible each day.
DISCUSSION
KEY MESSAGE 1...Dry and seasonable today, but summer heat and humidity returns Wed through the weekend. Diurnal scattered thunderstorms possible each day.
A weak high pressure builds in today in the wake of a cold front, bringing clearing skies and dry weather with high temperatures in the low to mid 80s. Dew points begin to surge into the mid 70s Wednesday, peaking Thursday and Friday, and linger into the weekend as a Bermuda high builds in across the western Atlantic Ocean. Prolonged southerly flow will advect those warmer dew points into southern New England through the second half of the week, leading to near oppressive humidity at times. 925mb temperatures surge to near +22C each afternoon this week, leading to high temps 85-90 every day. Combined with dew points of 72-76, heat headlines are being considered through the second half of the week and possibly into the weekend.
Regarding the thunderstorm potential later in the week... a few weak, upper level disturbances passing through New England combining with the high heat/humidity and just enough instability will likely be enough to pop a few diurnal showers/thunderstorms each day Thursday through the weekend.
PWATs anywhere from 1.75" to 2.10" will also provide enough potential for storms to be water loaded with torrential downpours.
AVIATION /13Z TUESDAY THROUGH SATURDAY/
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
12z TAF Update:
Through Tonight: High Confidence.
VFR. West winds 5-10 kts becoming SW after 18Z, with seabreezes at BOS and PVD. Mid to high level cloud deck lingers along the Cape and Island terminals, dropping to MVFR late tonight after sunset.
Wednesday: Moderate Confidence.
Generally VFR with southwesterly flow. Chances for dirunal showers, but uncertain on where exactly they could pop.
KBOS Terminal...High confidence in TAF.
VFR. W winds become SW this morning with potential for a late- day sea breeze.
KBDL Terminal...High confidence in TAF.
Outlook /Wednesday Night through Saturday/...
Wednesday Night: VFR.
Thursday: VFR. Breezy. Chance SHRA, slight chance TSRA.
Thursday Night: VFR.
Friday: VFR. Breezy. Chance SHRA, chance TSRA.
Friday Night: VFR. Slight chance SHRA, slight chance TSRA.
Saturday: VFR. Breezy. Chance SHRA, chance TSRA.
MARINE
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
SCA's continue for the outer waters as seas slowly subside throughout the day. Winds generally below 10 kts, except a few gusts up to 18 kts possible across the northern waters later this afternoon. A Rip Current Statement remains in effect along the southern coastal and Island communities today as rough seas and longer period swells slowly subside.
Outlook /Wednesday Night through Saturday/...
Wednesday Night through Thursday Night: Winds less than 25 kt.
Areas of seas approaching 5 ft.
Friday: Winds less than 25 kt. Seas up to 5 ft.
Friday Night: Winds less than 25 kt. Seas up to 5 ft. Slight chance of rain showers.
Saturday: Winds less than 25 kt. Areas of seas approaching 5 ft.
BOX WATCHES/WARNINGS/ADVISORIES
CT...None.
MA...High Risk for Rip Currents until 9 PM EDT this evening for MAZ020- 023-024.
RI...High Risk for Rip Currents until 9 PM EDT this evening for RIZ006>008.
MARINE...Small Craft Advisory until 2 PM EDT this afternoon for ANZ235- 237-250-254.
Small Craft Advisory until 8 PM EDT this evening for ANZ255- 256.
Area Forecast Discussion National Weather Service Boston/Norton MA 902 AM EDT Tue Aug 4 2026
WHAT HAS CHANGED
Forecast remains on track.
KEY MESSAGES
- Dry and seasonable today, but summer heat and humidity returns Wed through the weekend. Diurnal scattered thunderstorms possible each day.
DISCUSSION
KEY MESSAGE 1...Dry and seasonable today, but summer heat and humidity returns Wed through the weekend. Diurnal scattered thunderstorms possible each day.
A weak high pressure builds in today in the wake of a cold front, bringing clearing skies and dry weather with high temperatures in the low to mid 80s. Dew points begin to surge into the mid 70s Wednesday, peaking Thursday and Friday, and linger into the weekend as a Bermuda high builds in across the western Atlantic Ocean. Prolonged southerly flow will advect those warmer dew points into southern New England through the second half of the week, leading to near oppressive humidity at times. 925mb temperatures surge to near +22C each afternoon this week, leading to high temps 85-90 every day. Combined with dew points of 72-76, heat headlines are being considered through the second half of the week and possibly into the weekend.
Regarding the thunderstorm potential later in the week... a few weak, upper level disturbances passing through New England combining with the high heat/humidity and just enough instability will likely be enough to pop a few diurnal showers/thunderstorms each day Thursday through the weekend.
PWATs anywhere from 1.75" to 2.10" will also provide enough potential for storms to be water loaded with torrential downpours.
AVIATION /13Z TUESDAY THROUGH SATURDAY/
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
12z TAF Update:
Through Tonight: High Confidence.
VFR. West winds 5-10 kts becoming SW after 18Z, with seabreezes at BOS and PVD. Mid to high level cloud deck lingers along the Cape and Island terminals, dropping to MVFR late tonight after sunset.
Wednesday: Moderate Confidence.
Generally VFR with southwesterly flow. Chances for dirunal showers, but uncertain on where exactly they could pop.
KBOS Terminal...High confidence in TAF.
VFR. W winds become SW this morning with potential for a late- day sea breeze.
KBDL Terminal...High confidence in TAF.
Outlook /Wednesday Night through Saturday/...
Wednesday Night: VFR.
Thursday: VFR. Breezy. Chance SHRA, slight chance TSRA.
Thursday Night: VFR.
Friday: VFR. Breezy. Chance SHRA, chance TSRA.
Friday Night: VFR. Slight chance SHRA, slight chance TSRA.
Saturday: VFR. Breezy. Chance SHRA, chance TSRA.
MARINE
Forecaster Confidence Levels...
Low - less than 30 percent.
Moderate - 30 to 60 percent.
High - greater than 60 percent.
SCA's continue for the outer waters as seas slowly subside throughout the day. Winds generally below 10 kts, except a few gusts up to 18 kts possible across the northern waters later this afternoon. A Rip Current Statement remains in effect along the southern coastal and Island communities today as rough seas and longer period swells slowly subside.
Outlook /Wednesday Night through Saturday/...
Wednesday Night through Thursday Night: Winds less than 25 kt.
Areas of seas approaching 5 ft.
Friday: Winds less than 25 kt. Seas up to 5 ft.
Friday Night: Winds less than 25 kt. Seas up to 5 ft. Slight chance of rain showers.
Saturday: Winds less than 25 kt. Areas of seas approaching 5 ft.
BOX WATCHES/WARNINGS/ADVISORIES
CT...None.
MA...High Risk for Rip Currents until 9 PM EDT this evening for MAZ020- 023-024.
RI...High Risk for Rip Currents until 9 PM EDT this evening for RIZ006>008.
MARINE...Small Craft Advisory until 2 PM EDT this afternoon for ANZ235- 237-250-254.
Small Craft Advisory until 8 PM EDT this evening for ANZ255- 256.
| Stations | Dist | Age | Wind | Air | Water | Waves | inHg | DewPt |
| 44090 | 17 mi | 59 min | 72°F | 70°F | 1 ft | |||
| 44020 - NANTUCKET SOUND | 32 mi | 49 min | WSW 5.8G | 73°F | 74°F | 30.08 | ||
| WAXM3 - Waquoit Bay Reserve, MA | 35 mi | 89 min | W 1 | 79°F | 30.06 | 64°F | ||
| 44013 - BOSTON 16 NM East of Boston, MA | 44 mi | 49 min | SW 3.9G | 71°F | 67°F | 30.09 | 65°F | |
| BZBM3 - 8447930 - Woods Hole, MA | 44 mi | 89 min | 76°F | 80°F | 30.11 | |||
| NTKM3 - 8449130 - Nantucket Island, MA | 44 mi | 89 min | NNW 2.9G | 77°F | 75°F | 30.11 |
Wind History for Nantucket Island, MA
toggle option: (graph/table)
Link to 5 hour of 5 minute data for KPVC
Terminal Aerodrome Forecast (TAF) for KPVC
Wind History Graph: PVC
(wind in knots)
GEOS Local Image of north east
Edit Hide
Boston, MA,
NOTICE: Some pages have affiliate links to Amazon. As an Amazon Associate, I earn from qualifying purchases. Please read website Cookie, Privacy, and Disclamers by clicking HERE. To contact me click HERE. For my YouTube page click HERE