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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 Monday 25 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
12.8° C
(Which is 1.7°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 2PM is: 0.8m 7s primary swell from a East-southeast direction and 0.1m 16s secondary swell from a East direction (forecast issued at 07:00am May 25). The wind direction is predicted to be offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 May) | 3.5ft (1.0m) | 7s |
| Afternoon (25 May) | 2.5ft (0.8m) | 8s |
| Evening (25 May) | 2.5ft (0.7m) | 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 5mm), mostly falling on Mon morning. Warm (max 28°C on Wed afternoon, min 12°C on Mon morning). Wind will be generally light. | ||||||||||||||||||||||||
Monday 25 | Tuesday 26 | Wednesday 27 | Thu 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 |    |    |    |    | ||||||||||||||||||||
ESE 7 | E 7 | ESE 7 | ESE 7 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 | E 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 6 | ESE 6 | E 13 | |
128 | 109 | 89 | 73 | 83 | 63 | 63 | 61 | 61 | 46 | 45 | 28 | 30 | 19 | 19 | 10 | 10 | 10 | 5 | 5 | 4 | 4 | 4 | 4 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | glassy | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off | |
High Tide | 7:28AM2.72m | 8:02PM2.82m | 8:31AM2.65m | 8:55PM2.87m | 9:29AM2.63m | 9:42PM2.91m | ||||||||||||||||||
Low Tide | 1:41PM0.25m | 2:17AM0.28m | 2:36PM0.31m | 3:15AM0.22m | 3:26PM0.36m | |||||||||||||||||||
 |  |  |  |  | |  | | |  | | | | | | | | | | | | | | | |
 | 5:13 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:11 | — | — | — | — | — | — | 5:11 |
 | — | — | — | — | — | 8:07 | — | — | — | — | — | — | — | 8:07 | — | — | — | — | — | — | — | 8:08 | — | 8:09 |
— | — | 4 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 12 | 12 | 13 | 14 | 19 | 21 | 19 | 17 | 15 | 16 | 21 | 24 | 23 | 20 | 18 | 17 | 17 | 19 | 25 | 28 | 27 | 25 | 19 | 17 |
12 | 12 | 11 | 13 | 19 | 21 | 19 | 16 | 14 | 15 | 20 | 22 | 21 | 18 | 16 | 15 | 16 | 17 | 23 | 26 | 25 | 24 | 15 | 15 | |
Swell 1 Height (m) Direction Period (s) | ESE 7 | E 7 | ESE 7 | ESE 7 | ESE 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 | E 8 | ESE 8 | ESE 8 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 6 | ESE 6 | SE 6 |
 kJ | 128 | 109 | 89 | 73 | 83 | 63 | 63 | 61 | 61 | 46 | 45 | 28 | 30 | 19 | 19 | 10 | 10 | 10 | 5 | 5 | 4 | 4 | 4 | 2 |
Swell 2 Height (m) Direction Period (s) | E 17 | E 16 | E 16 | E 16 | E 16 | E 16 | E 16 | — | — | E 16 | E 15 | ESE 9 | E 15 | SSE 4 | SSE 4 | — | — | — | — | — | SSE 5 | SE 5 | — | — |
| kJ | 6 | 5 | 5 | 5 | 5 | 5 | 5 | — | — | 5 | 4 | 16 | 4 | 1 | 1 | — | — | — | — | — | 2 | 1 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | S 8 | S 8 | — | — | — | — | — | — | E 15 | E 15 | — | — | E 15 | — | — | — | — | — | E 14 | — | — | E 13 |
| kJ | — | — | 1 | 1 | — | — | — | — | — | — | 4 | 4 | — | — | 4 | — | — | — | — | — | 4 | — | — | 4 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 2 | SW 2 | — | — | — | — | — | — | NNE 2 | N 3 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | 1 | 3 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 7 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 7 | 12 | 79 | 58 | 58 | 58 | 64 | 58 | 340 | 383 | 378 | 133 | 113 | 98 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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