Marine Weather and Tide Forecast for Onset, MA
 | Sunrise 5:08 AM Sunset 8:20 PM Moonrise 7:42 AM Moonset 11:00 PM |
Marine Forecasts
NOTE: Zones updated 4/16/2026. Some zones changed. Use Edit if needed.
ANZ234 Buzzards Bay- 404 Pm Edt Wed Jun 17 2026
.gale watch in effect from Thursday morning through Thursday evening - .
Tonight - S winds 5 to 10 kt. Seas around 2 ft. Wave detail: sw 1 foot at 3 seconds and S 1 foot at 7 seconds.
Thu - S winds 15 to 20 kt, increasing to 20 to 25 kt in the afternoon. Gusts up to 35 kt. Seas 2 to 3 ft, building to 3 to 5 ft in the afternoon. Wave detail: S 3 ft at 6 seconds, becoming S 5 ft at 6 seconds. Patchy fog in the afternoon. A chance of showers in the afternoon with vsby 1 to 3 nm.
Thu night - SW winds 20 to 25 kt with gusts up to 30 kt, becoming W 10 to 15 kt with gusts up to 20 kt after midnight. Seas 3 to 5 ft. Wave detail: S 4 ft at 7 seconds. Patchy fog in the evening with vsby 1 to 3 nm.
Fri - W winds 10 to 15 kt with gusts up to 20 kt, becoming sw 15 to 20 kt with gusts up to 30 kt in the afternoon. Seas 2 to 4 ft. Wave detail: S 4 ft at 7 seconds and E 1 foot at 14 seconds.
Fri night through Sat night - W winds 15 to 20 kt with gusts up to 25 kt. Seas 2 to 4 ft. Wave detail: sw 4 ft at 5 seconds and sw 3 ft at 9 seconds.
Sun - W winds 10 to 15 kt with gusts up to 20 kt. Seas 2 to 3 ft. Wave detail: sw 3 ft at 6 seconds and se 1 foot at 9 seconds.
Sun night - SW winds 10 to 15 kt with gusts up to 20 kt. Seas around 2 ft. A chance of showers.
Mon and Mon night - S winds 10 to 15 kt, becoming W 15 to 20 kt. Seas 2 to 4 ft. Showers likely.
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 404 Pm Edt Wed Jun 17 2026
Synopsis for massachusetts and rhode island coastal waters - Increasing seas and winds overnight into Thursday as a system approaches from the west. Numerous hazards possible tomorrow with showers and storms developing later in day. Breezy conditions and elevated seas continue Fri and Sat across the srn coastal waters.
7 Day Forecast for Marine Location Near Onset, MA
NEW! Add second zone forecast
| Onset Beach Click for Map Wed -- 05:07 AM EDT Sunrise Wed -- 05:33 AM EDT -0.16 feet Low Tide Wed -- 07:42 AM EDT Moonrise Wed -- 11:00 AM EDT 4.28 feet High Tide Wed -- 05:06 PM EDT -0.16 feet Low Tide Wed -- 08:19 PM EDT Sunset Wed -- 10:59 PM EDT Moonset Wed -- 11:26 PM EDT 4.71 feet High Tide Tide / Current data from XTide NOT FOR NAVIGATION |
Onset Beach, Onset Bay, Buzzards Bay, Massachusetts, Tide feet
| 12 am |
| 4.2 |
| 1 am |
| 3.1 |
| 2 am |
| 1.9 |
| 3 am |
| 0.8 |
| 4 am |
| 0.1 |
| 5 am |
| -0.1 |
| 6 am |
| -0.1 |
| 7 am |
| 0.2 |
| 8 am |
| 1.1 |
| 9 am |
| 2.5 |
| 10 am |
| 3.7 |
| 11 am |
| 4.3 |
| 12 pm |
| 4 |
| 1 pm |
| 3.1 |
| 2 pm |
| 1.9 |
| 3 pm |
| 0.8 |
| 4 pm |
| 0.1 |
| 5 pm |
| -0.2 |
| 6 pm |
| 0 |
| 7 pm |
| 0.5 |
| 8 pm |
| 1.3 |
| 9 pm |
| 2.5 |
| 10 pm |
| 3.8 |
| 11 pm |
| 4.6 |
| Cape Cod Canal Click for Map Flood direction 66 true Ebb direction 248 true Wed -- 02:07 AM EDT -5.73 knots Max Ebb Wed -- 05:07 AM EDT Sunrise Wed -- 05:49 AM EDT 0.01 knots Slack Wed -- 07:42 AM EDT Moonrise Wed -- 08:40 AM EDT 4.69 knots Max Flood Wed -- 12:24 PM EDT -0.00 knots Slack Wed -- 02:46 PM EDT -5.05 knots Max Ebb Wed -- 06:10 PM EDT 0.00 knots Slack Wed -- 08:19 PM EDT Sunset Wed -- 08:41 PM EDT 4.41 knots Max Flood Wed -- 10:59 PM EDT Moonset Tide / Current data from XTide NOT FOR NAVIGATION |
Cape Cod Canal, Railroad Bridge, midchannel (depth 13 ft), Massachusetts Current, knots
| 12 am |
| -1.4 |
| 1 am |
| -4.4 |
| 2 am |
| -5.7 |
| 3 am |
| -5.2 |
| 4 am |
| -4 |
| 5 am |
| -2.1 |
| 6 am |
| 0.5 |
| 7 am |
| 3.1 |
| 8 am |
| 4.5 |
| 9 am |
| 4.7 |
| 10 am |
| 4.4 |
| 11 am |
| 3.7 |
| 12 pm |
| 1.4 |
| 1 pm |
| -2 |
| 2 pm |
| -4.5 |
| 3 pm |
| -5 |
| 4 pm |
| -4.2 |
| 5 pm |
| -2.8 |
| 6 pm |
| -0.5 |
| 7 pm |
| 2.3 |
| 8 pm |
| 4.1 |
| 9 pm |
| 4.4 |
| 10 pm |
| 3.9 |
| 11 pm |
| 3.1 |
Using backup data server for box
Wind History for Borden Flats Light at Fall River, MA
toggle option: (graph/table)
| Airport | Dist | Age | Wind kt | Vis | Sky | Weather | Air | DewPt | RH | inHg |
| KFMH Cape Cod Coast Guard Air Station US | 9 sm | 63 min | SW 10 | 10 sm | Clear | 72°F | 52°F | 50% | 29.84 | |
| KPYM Plymouth Municipal Airport US | 12 sm | 67 min | SSW 09 | 10 sm | Clear | 73°F | 50°F | 44% | 29.80 | |
| KEWB New Bedford Regional Airport US | 16 sm | 66 min | SW 12 | 10 sm | Clear | 72°F | 50°F | 46% | 29.81 | |
| KHYA Cape Cod Gateway Airport US | 21 sm | 63 min | SSW 09 | 10 sm | Clear | 72°F | 59°F | 65% | 29.81 | |
| KTAN Taunton Municipal King Field US | 21 sm | 67 min | var 06 | 10 sm | Clear | 75°F | 52°F | 44% | 29.80 | |
| KMVY Martha's Vineyard Airport US | 24 sm | 66 min | SW 08 | 10 sm | Clear | 70°F | 54°F | 56% | 29.82 |
Link to 5 hour of 5 minute data for KFMH
Terminal Aerodrome Forecast (TAF) for KFMH
Wind History Graph: FMH
(wind in knots)
GEOS Local Image of north east
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Boston, MA,
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