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Nantasket Beach Surf Forecast
/ Massachusetts (29 breaks) / Massachusetts (28 breaks) /
Surf Forecasts:
Nantasket Beach surfForecast / Massachusetts / USA
48hr Weather and Surf, issued 1 am Monday 11 May 2026 EDTForecast update in hr min s Forecast update imminent
Nantasket Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Nantasket Beach sea temperature is
10.0° C
(Which is 1.2°C warmer than normal for this time of year)How big are the waves at Nantasket Beach today?
The current surf forecast for Nantasket Beach at 9AM is: 0.6m 8s primary swell from a East direction and 0.2m 3s secondary swell from a North direction, 0.4m 4s secondary swell from a North direction (forecast issued at 01:00am May 11). The wind direction is predicted to be cross-offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 May) | 2ft (0.6m) | 8s |
| Afternoon (11 May) | 2ft (0.6m) | 8s |
| Evening (11 May) | 2ft (0.6m) | 8s |
Table - waves today at Nantasket Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 3mm), mostly falling on Wed night. Very mild (max 15°C on Wed morning, min 8°C on Mon night). Wind will be generally light. | ||||||||||||||||||||||||
Monday 11 | Tuesday 12 | Wednesday 13 | ||||||||||||||||||||||
2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 | ESE 7 | E 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | E 7 | SSE 4 | SSE 5 | |
49 | 49 | 48 | 45 | 44 | 42 | 42 | 60 | 69 | 68 | 64 | 45 | 42 | 29 | 27 | 18 | 9 | 17 | 10 | 9 | 9 | 8 | 13 | 19 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross | on | cross-on | cross-on | cross-off | off | cross-off | cross-off | cross-off | cross | cross | cross | cross | |
High Tide | 6:54AM2.63m | 7:29PM2.63m | 7:49AM2.68m | 8:19PM2.81m | 8:45AM2.76m | 9:08PM3.00m | ||||||||||||||||||
Low Tide | 00:42AM0.53m | 1:10PM0.34m | 1:37AM0.40m | 2:01PM0.27m | 2:33AM0.22m | 2:52PM0.19m | ||||||||||||||||||
 |  |  |  | | | |  | |  |  | | | | | | | | | | | | | | |
 | — | 5:26 | — | — | — | — | — | — | — | 5:24 | — | — | — | — | — | — | — | 5:24 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:52 | — | — | — | — | — | — | — | 7:53 | — | — | — | — | — | — | — | 7:54 | — | — |
— | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | |
Temp °C | 13 | 10 | 10 | 12 | 14 | 13 | 12 | 12 | 9 | 8 | 9 | 12 | 13 | 13 | 13 | 12 | 10 | 9 | 10 | 15 | 11 | 13 | 13 | 13 |
8 | 6 | 7 | 8 | 11 | 9 | 8 | 9 | 4 | 4 | 4 | 8 | 9 | 9 | 9 | 9 | 7 | 6 | 7 | 11 | 6 | 6 | 7 | 9 | |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 | ESE 7 | E 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | E 7 | E 7 | ESE 7 |
 kJ | 49 | 49 | 48 | 45 | 44 | 42 | 42 | 60 | 69 | 68 | 64 | 45 | 42 | 29 | 27 | 18 | 9 | 17 | 9 | 9 | 9 | 8 | 8 | 9 |
Swell 2 Height (m) Direction Period (s) | SE 8 | E 12 | N 3 | — | — | E 12 | E 14 | E 15 | E 14 | E 15 | — | E 11 | NE 4 | NE 4 | NNE 4 | E 7 | ESE 7 | E 7 | ENE 7 | E 7 | E 7 | E 10 | E 10 | E 10 |
| kJ | 24 | 3 | 1 | — | — | 3 | 4 | 4 | 4 | 4 | — | 10 | 4 | 2 | 1 | 8 | 9 | 8 | 10 | 4 | 4 | 8 | 8 | 8 |
Swell 3 Height (m) Direction Period (s) | — | — | E 12 | E 12 | E 12 | — | E 12 | — | E 15 | — | — | — | E 12 | E 11 | E 11 | E 11 | E 10 | E 11 | E 10 | E 10 | E 10 | — | — | E 13 |
| kJ | — | — | 3 | 3 | 3 | — | 3 | — | 4 | — | — | — | 3 | 10 | 9 | 9 | 8 | 9 | 8 | 8 | 8 | — | — | 3 |
Wind waves Height (m) Direction Period (s) | — | NNW 2 | N 4 | — | — | — | — | — | — | N 3 | NNE 3 | NNE 4 | — | — | — | SSE 2 | S 3 | — | — | — | SSE 3 | SSE 3 | SSE 4 | SSE 5 |
| kJ | — | 1 | 4 | — | — | — | — | — | — | 2 | 4 | 6 | — | — | — | 1 | 1 | — | — | — | 1 | 7 | 13 | 19 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 7 | 7 | 12 | 84 | 58 | 18 | 0 | 0 | 0 | 0 | 28 | 55 | 55 | 58 | 12 | 79 | 58 | 58 | 81 | 1828 | 1828 | 893 | 653 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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