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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 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 5AM is: 0.5m 4s primary swell from a Southeast direction and 0.2m 7s secondary swell from a East direction, 0.1m 10s secondary swell from a East direction (forecast issued at 01:00am May 14). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 May) | 2ft (0.6m) | 4s |
| Afternoon (14 May) | 3ft (0.9m) | 6s |
| Evening (14 May) | 4ft (1.2m) | 6s |
Table - waves today at Nantasket Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 10mm), heaviest on Thu night. Warm (max 24°C on Sat afternoon, min 9°C on Fri afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 14 | Friday 15 | Saturday 16 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
SSE 5 | SE 4 | SE 4 | SE 5 | ESE 6 | E 6 | E 6 | E 6 | ESE 7 | E 7 | ESE 9 | E 10 | E 10 | E 10 | ENE 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | |
9 | 10 | 12 | 22 | 47 | 66 | 92 | 151 | 277 | 178 | 138 | 480 | 489 | 369 | 378 | 306 | 256 | 202 | 168 | 132 | 102 | 76 | 53 | 36 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | glassy | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 9:39AM2.85m | 9:56PM3.20m | 10:31AM2.94m | 10:44PM3.36m | 11:22AM3.00m | |||||||||||||||||||
Low Tide | 3:27AM0.01m | 3:41PM0.09m | 4:18AM-0.19m | 4:30PM0.02m | 5:09AM-0.35m | 5:19PM-0.03m | ||||||||||||||||||
 | |  |  | |  |  |  |  | | | | | | | | |  |  | | | | | | |
 | — | 5:22 | — | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:20 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:55 | — | — | — | — | — | — | — | 7:57 | — | — | — | — | — | — | — | 7:58 | — | — |
— | — | — | — | — | 1 | 6 | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 13 | 13 | 15 | 15 | 14 | 13 | 11 | 11 | 12 | 10 | 10 | 10 | 9 | 9 | 9 | 10 | 10 | 10 | 12 | 19 | 22 | 24 | 19 | 15 |
9 | 9 | 11 | 11 | 10 | 9 | 8 | 9 | 12 | 9 | 8 | 7 | 5 | 6 | 6 | 9 | 8 | 7 | 9 | 16 | 18 | 20 | 15 | 11 | |
Swell 1 Height (m) Direction Period (s) | E 7 | E 7 | E 7 | E 10 | E 10 | E 10 | E 10 | E 11 | E 7 | E 7 | ESE 9 | — | E 10 | E 10 | ENE 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 |
 kJ | 4 | 3 | 4 | 2 | 2 | 2 | 8 | 2 | 199 | 178 | 138 | — | 489 | 369 | 378 | 306 | 256 | 202 | 168 | 132 | 102 | 76 | 53 | 36 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | — | — | E 12 | — | — | — | — | — | — | — | S 9 | — | — | — | — | — | — | — | — | — | — |
| kJ | 2 | 2 | 8 | — | — | 3 | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | SE 6 | E 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 5 | SE 4 | SE 4 | SE 5 | ESE 6 | E 6 | E 6 | E 6 | ESE 7 | — | ENE 6 | E 10 | NNE 5 | NNE 5 | N 5 | — | — | — | WSW 2 | WSW 2 | SSW 2 | S 4 | S 5 | SSW 3 |
| kJ | 9 | 10 | 12 | 22 | 47 | 66 | 92 | 151 | 277 | — | 92 | 480 | 25 | 19 | 15 | — | — | — | 1 | 1 | 1 | 3 | 10 | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 340 | 311 | 273 | 241 | 131 | 113 | 113 | 26 | 0 | 0 | 32 | 32 | 32 | 17 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 26 | 26 | 26 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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