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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 7 pm Thursday 14 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
10.3° C
(Which is 1.0°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 2AM is: 0.8m 6s primary swell from a East direction and 0.2m 10s secondary swell from a East direction (forecast issued at 07:00pm May 14). The wind direction is predicted to be cross-offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 May) | 2.5ft (0.7m) | 9s |
| Afternoon (15 May) | 4.5ft (1.4m) | 10s |
| Evening (15 May) | 4.5ft (1.4m) | 10s |
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 7mm), mostly falling on Thu night. Warm (max 28°C on Sun afternoon, min 9°C on Fri afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Thu 14 | Friday 15 | Saturday 16 | Sun 17 | |||||||||||||||||||||
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 | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ESE 6 | E 6 | E 6 | E 6 | E 7 | ESE 9 | E 10 | E 10 | E 10 | ENE 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | |
58 | 30 | 32 | 50 | 92 | 79 | 305 | 371 | 440 | 394 | 326 | 268 | 216 | 171 | 134 | 104 | 78 | 55 | 36 | 35 | 24 | 23 | 22 | 13 | |
Wind (km/h) | ||||||||||||||||||||||||
on | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross | cross | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | off | |
High Tide | 9:56PM3.20m | 10:31AM2.94m | 10:44PM3.36m | 11:22AM3.00m | 11:33PM3.47m | 12:14PM3.02m | ||||||||||||||||||
Low Tide | 3:41PM0.09m | 4:18AM-0.19m | 4:30PM0.02m | 5:09AM-0.35m | 5:19PM-0.03m | 6:00AM-0.45m | ||||||||||||||||||
 |  | |  | |  | | | | |  | | |  | | | | |  | | | | | | |
 | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — | — | 5:20 | — | — | — |
 | 7:55 | — | — | — | — | — | — | — | 7:57 | — | — | — | — | — | — | — | 7:58 | — | — | — | — | — | — | 7:59 |
4 | 5 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 11 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 10 | 10 | 12 | 19 | 22 | 24 | 18 | 15 | 15 | 16 | 19 | 24 | 27 |
10 | 11 | 10 | 8 | 8 | 8 | 8 | 7 | 6 | 6 | 7 | 9 | 7 | 9 | 16 | 18 | 20 | 13 | 10 | 11 | 13 | 18 | 22 | 24 | |
Swell 1 Height (m) Direction Period (s) | ESE 6 | E 6 | E 6 | E 6 | E 7 | ENE 7 | E 10 | E 10 | E 10 | ENE 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 |
 kJ | 33 | 30 | 32 | 50 | 92 | 60 | 305 | 371 | 440 | 394 | 326 | 268 | 216 | 171 | 134 | 104 | 78 | 55 | 36 | 35 | 24 | 23 | 22 | 13 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 10 | ESE 9 | ESE 9 | — | S 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | S 4 | — | — |
| kJ | 2 | 8 | 8 | 8 | 8 | 79 | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — |
Swell 3 Height (m) Direction Period (s) | — | E 11 | — | — | — | S 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSE 6 | — | — |
| kJ | — | 2 | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — |
Wind waves Height (m) Direction Period (s) | ESE 6 | — | — | — | — | — | — | — | — | — | — | — | — | WSW 2 | — | SSW 2 | — | S 4 | S 3 | SW 3 | SW 3 | WSW 2 | — | — |
| kJ | 58 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 1 | — | 6 | 4 | 2 | 1 | 1 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 113 | 12 | 12 | 7 | 0 | 0 | 0 | 32 | 17 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 55 | 131 | 26 | 55 | 55 | 55 | 69 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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