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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 am Saturday 25 Apr 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
7.6° C
(Which is slightly warmer than usual)How big are the waves at Nantasket Beach today?
The current surf forecast for Nantasket Beach at 1PM is: 0.2m 14s primary swell from a East-northeast direction and 0.2m 6s secondary swell from a East direction, 0.3m 4s secondary swell from a Northeast direction (forecast issued at 07:00am April 25). The wind direction is predicted to be onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Apr) | 0.5ft (0.2m) | 15s |
| Afternoon (25 Apr) | 0.5ft (0.2m) | 14s |
| Evening (25 Apr) | 1ft (0.3m) | 13s |
Table - waves today at Nantasket Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 10°C on Mon morning, min 5°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tue 28 | |||||||||||||||||||||
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 | 2 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
E 15 | E 15 | E 14 | ENE 14 | ENE 14 | ENE 14 | ENE 13 | ENE 13 | ENE 13 | ENE 13 | ENE 13 | ENE 13 | ENE 12 | ENE 12 | ENE 12 | E 12 | E 12 | ENE 10 | ENE 9 | ENE 4 | ENE 4 | E 4 | ESE 7 | E 7 | |
4 | 17 | 16 | 20 | 38 | 36 | 34 | 34 | 33 | 33 | 33 | 32 | 30 | 29 | 29 | 12 | 12 | 9 | 8 | 8 | 8 | 9 | 75 | 131 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | cross | cross-on | on | cross-on | cross-off | cross-off | off | glassy | glassy | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | |
High Tide | 6:42AM2.83m | 7:29PM2.65m | 7:51AM2.79m | 8:32PM2.73m | 8:56AM2.79m | 9:28PM2.83m | ||||||||||||||||||
Low Tide | 1:09PM0.17m | 1:32AM0.37m | 2:13PM0.20m | 2:38AM0.29m | 3:10PM0.19m | |||||||||||||||||||
 |  |  | | |  |  | | | | | | | | | | |  | | | | | | | |
 | 5:48 | — | — | — | — | — | — | — | 5:46 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | 5:43 |
 | — | — | — | — | 7:35 | — | — | — | — | — | — | — | 7:36 | — | — | — | — | — | — | — | 7:37 | — | — | 7:38 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 5 | 5 | 6 | 7 | 7 | 7 | 6 | 7 | 6 | 7 | 9 | 9 | 9 | 8 | 7 | 7 | 7 | 8 | 10 | 10 | 9 | 7 | 7 | 6 |
2 | 1 | 2 | 2 | 2 | 3 | 2 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 4 | 3 | 3 | 4 | 5 | 5 | 4 | 3 | 3 | 1 | |
Swell 1 Height (m) Direction Period (s) | ENE 4 | NE 4 | E 6 | ENE 14 | NE 4 | NE 5 | E 8 | ENE 13 | ENE 13 | ENE 13 | ENE 13 | ENE 13 | ENE 12 | ENE 12 | ENE 12 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | E 9 | E 9 | ESE 6 | E 6 | E 7 |
 kJ | 2 | 2 | 3 | 20 | 4 | 5 | 11 | 34 | 33 | 33 | 33 | 32 | 30 | 29 | 29 | 11 | 9 | 9 | 8 | 6 | 6 | 4 | 27 | 66 |
Swell 2 Height (m) Direction Period (s) | E 7 | E 7 | E 14 | E 6 | E 8 | E 8 | NE 5 | E 8 | E 7 | E 7 | E 7 | E 7 | E 7 | — | — | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 9 | E 9 | E 9 |
| kJ | 4 | 4 | 16 | 3 | 12 | 12 | 6 | 10 | 10 | 9 | 4 | 3 | 4 | — | — | 12 | 12 | 3 | 3 | 3 | 3 | 6 | 6 | 2 |
Swell 3 Height (m) Direction Period (s) | E 15 | E 15 | — | E 9 | ENE 14 | ENE 14 | ENE 13 | NE 5 | ENE 5 | NE 4 | NE 4 | — | NE 4 | — | — | — | — | — | — | S 7 | E 12 | E 12 | E 12 | E 12 |
| kJ | 4 | 17 | — | 2 | 38 | 36 | 34 | 3 | 2 | 1 | 1 | — | 1 | — | — | — | — | — | — | 1 | 3 | 3 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | — | — | NE 4 | NE 4 | — | — | — | — | — | — | — | ENE 4 | — | — | — | — | NE 2 | NE 3 | NE 3 | ENE 4 | ENE 4 | E 4 | ESE 7 | E 7 |
| kJ | — | — | 2 | 2 | — | — | — | — | — | — | — | 2 | — | — | — | — | 1 | 1 | 4 | 8 | 8 | 9 | 75 | 131 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 523 | 531 | 844 | 1237 | 79 | 7 | 7 | 12 | 12 | 12 | 523 | 558 | 558 | 523 | 190 | 263 | 276 | 117 | 117 | 276 | 117 | 117 | 28 | 32 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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