Marine forecast
Ocean: Provincetown–Nantucket (20-60 nm), MA
- current wind
- 10 kt SE
- Gusts
- 16 kt
- Seas
- 2.0 ft
- Period
- 3 sec
- Air
- 62°F
Observed Tue 3:00 PM | ANZ281
- Gusts now
- 16 kt
- Seas now
- 2.0 ft · 3 sec
- Air
- 62°F
- Water
- 61°F
- 72-hr peak
- 24 kt
In brief
At 3:00 pm EDT on Oct 13, 2026, NDBC station NTKM3 (Nantucket Island, MA, 44 miles away) measured wind from the SE at 10 kt, gusting to 16 kt; buoy 44090 measured seas of 2.0 ft. The NWS forecast for Ocean: Provincetown–Nantucket (20-60 nm), MA issued at 1:04 pm EDT on Oct 13, 2026 reads, for this afternoon: “SE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 6 ft.”
Source: National Weather Service Boston/Norton MA forecast; NDBC observations
Wind forecast · ktPeak 24 kt
Seas forecast · ftPeak 6 ft
NWS marine forecast
| Period | Forecast |
|---|---|
| This Afternoon | SE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 6 ft. Wave Detail: NE 6 ft at 7 seconds and S 4 ft at 8 seconds. Patchy drizzle. |
| Tonight | S winds 15 to 20 kt, becoming SW 20 to 25 kt after midnight. Seas 5 to 6 ft. Wave Detail: E 6 ft at 7 seconds and S 5 ft at 5 seconds. A chance of showers. |
| Wed | SW winds 20 to 25 kt, diminishing to 15 to 20 kt in the afternoon. Seas 5 to 7 ft. Wave Detail: SW 6 ft at 7 seconds and E 4 ft at 8 seconds. Patchy fog. Vsby 1 to 3 NM. |
| Wed Night | W winds 10 to 15 kt, becoming NW 15 to 20 kt after midnight. Gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: SW 5 ft at 7 seconds and S 4 ft at 9 seconds. Patchy fog in the evening with vsby 1 to 3 NM. |
| Thu | N winds 15 to 20 kt with gusts up to 25 kt. Seas 4 to 6 ft. Wave Detail: N 6 ft at 7 seconds and SE 2 ft at 10 seconds. |
| Thu Night | N winds 10 to 15 kt, becoming E 5 to 10 kt after midnight. Seas 4 to 6 ft. Wave Detail: N 5 ft at 7 seconds and SW 2 ft at 6 seconds. |
| Fri | S winds 20 to 25 kt with gusts up to 30 kt. Seas 4 to 6 ft. Showers with a chance of tstms. |
| Fri Night | W winds 25 to 35 kt. Seas 8 to 11 ft. Showers with a chance of tstms. |
| Sat And Sat Night | NW winds 30 to 35 kt, diminishing to 25 to 30 kt. Seas 10 to 14 ft. A chance of showers. Winds and seas higher in and near tstms. 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. |
Issued Tue 1:04 PM by Boston/Norton MA (product CWFBOX).
Recent buoy conditions
| Time | Wind | Gust | Seas | Water |
|---|---|---|---|---|
| Tue 3:00 PM | 10 kt SE | 16 kt | — | 61°F |
| Tue 2:54 PM | 9 kt SE | 15 kt | — | 61°F |
| Tue 1:54 PM | 12 kt SE | 15 kt | — | 61°F |
| Tue 12:54 PM | 8 kt SE | 14 kt | — | 61°F |
| Tue 11:54 AM | 6 kt ESE | 12 kt | — | 61°F |
| Tue 10:54 AM | 7 kt ESE | 12 kt | — | 61°F |
| Tue 9:54 AM | 12 kt E | 14 kt | — | 61°F |
| Tue 8:54 AM | 7 kt ENE | 13 kt | — | 60°F |
| Tue 7:54 AM | 9 kt ENE | 12 kt | — | 61°F |
| Tue 6:54 AM | 11 kt ENE | 15 kt | — | 61°F |
| Tue 5:54 AM | 7 kt ENE | 13 kt | — | 61°F |
| Tue 4:54 AM | 8 kt ENE | 11 kt | — | 61°F |
Observed Tue 3:00 PM at NDBC buoy NTKM3 (Nantucket Island, MA), 43.8 miles away. Seas from buoy 44090 (Cape Cod Bay, MA (221)), 49.7 miles away, at Tue 3:00 PM.
Frequently asked questions
What is the marine forecast for Ocean: Provincetown–Nantucket (20-60 nm) today?
This Afternoon: SE winds 15 to 20 kt with gusts up to 25 kt. Seas 5 to 6 ft. Wave Detail: NE 6 ft at 7 seconds and S 4 ft at 8 seconds. Patchy drizzle.
Is there a small craft advisory for Ocean: Provincetown–Nantucket (20-60 nm)?
No advisories, warnings or watches are in effect for NWS zone ANZ281 as of the last update on this page. Advisories can be issued at any time; check the current bulletin before leaving the dock.
How high are the waves at Ocean: Provincetown–Nantucket (20-60 nm) right now?
Seas are running 2.0 ft at a 3-second period, measured at NDBC buoy NTKM3 Tue 3:00 PM, 43.8 miles from this zone. The forecast peaks at 6.0 ft Tue 3 PM.
What is the water temperature at Ocean: Provincetown–Nantucket (20-60 nm)?
The nearest buoy read 61°F (16°C) at Tue 3:00 PM. Sea surface temperature at a single buoy can differ by several degrees from the water at a beach or in a shallow bay nearby.
What do the wind speeds in knots mean?
One knot is 1.15 mph. The National Weather Service issues a small craft advisory for sustained winds of roughly 22–33 knots or hazardous seas, a gale warning at 34–47 knots, and a storm warning at 48 knots and above. Exact advisory thresholds vary by forecast office and by water body — a bay reaches dangerous chop at a lower wind speed than open ocean.
Where does this forecast come from?
The forecast text is the National Weather Service's own marine bulletin for zone ANZ281, issued by Boston/Norton MA, reproduced in full. The wind and seas charts are drawn from the NWS gridded forecast for a point inside the zone. Observations come from the nearest reporting NDBC buoy. We are not affiliated with NOAA or the National Weather Service.
Forecast: NOAA/NWS product CWFBOX, issued Tue 1:04 PM. Observations: NOAA National Data Buoy Center station NTKM3, read Tue 3:00 PM. Retrieved Oct 13, 3:42 PM. Conditions offshore change faster than any page can be rebuilt, so check the current NWS bulletin and your own instruments before going out.