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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 Friday 22 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 2.4°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: 0.9m 5s primary swell from a Northeast direction and 0.1m 9s secondary swell from a East direction, 0.1m 11s secondary swell from a East direction (forecast issued at 01:00am May 22). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 May) | 3ft (0.9m) | 5s |
| Afternoon (22 May) | 2.5ft (0.8m) | 5s |
| Evening (22 May) | 1.5ft (0.4m) | 4s |
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 9mm), mostly falling on Sun afternoon. Very mild (max 14°C on Sat afternoon, min 9°C on Sun morning). Wind will be generally light. | ||||||||||||||||||||||||
Friday 22 | Saturday 23 | Sunday 24 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
NNE 3 | NE 4 | NE 5 | NE 5 | NE 5 | ENE 5 | NE 5 | ENE 4 | E 14 | E 14 | E 14 | E 14 | E 10 | E 13 | E 10 | E 13 | SE 10 | E 12 | E 12 | ESE 3 | ESE 4 | ESE 4 | ESE 5 | ESE 6 | |
7 | 28 | 37 | 40 | 29 | 15 | 10 | 7 | 4 | 4 | 4 | 4 | 2 | 3 | 2 | 3 | 4 | 4 | 3 | 4 | 10 | 25 | 42 | 74 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | on | cross-on | cross | cross-off | cross-off | glassy | cross-on | on | on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | on | cross-on | on | on | |
High Tide | 4:12AM3.08m | 5:02PM2.77m | 5:18AM2.93m | 6:05PM2.76m | 6:23AM2.81m | 7:05PM2.79m | ||||||||||||||||||
Low Tide | 10:41AM-0.05m | 11:01PM0.30m | 11:43AM0.07m | 00:08AM0.34m | 12:43PM0.17m | |||||||||||||||||||
 |  |  |  |  | | |  | | | | | | | | | | | | |  | | |  | |
 | — | 5:16 | — | — | — | — | — | — | — | 5:15 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:04 | — | — | — | — | — | — | — | 8:05 | — | — | — | — | — | — | — | 8:06 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 1 | 2 | |
Temp °C | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 12 | 12 | 12 | 13 | 14 | 13 | 13 | 13 | 11 | 11 | 11 | 9 | 9 | 9 | 9 | 10 |
6 | 5 | 5 | 6 | 6 | 7 | 6 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 7 | 6 | 4 | 4 | 4 | 5 | |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 9 | E 9 | E 9 | E 9 | ENE 5 | NE 5 | ENE 4 | ENE 4 | ENE 4 | ENE 4 | ENE 4 | E 10 | E 10 | E 10 | E 10 | SE 10 | SE 10 | SE 7 | E 9 | E 9 | E 9 | E 10 | — |
 kJ | 3 | 3 | 2 | 2 | 2 | 15 | 10 | 7 | 3 | 3 | 1 | 1 | 2 | 2 | 2 | 2 | 4 | 4 | 2 | 2 | 2 | 2 | 2 | — |
Swell 2 Height (m) Direction Period (s) | E 13 | E 13 | E 11 | E 11 | E 11 | E 9 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | NE 4 | — | — | — | — | E 9 | E 9 | — | E 12 | E 12 | — | — |
| kJ | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | — | — | — | — | 2 | 2 | — | 3 | 3 | — | — |
Swell 3 Height (m) Direction Period (s) | E 11 | — | — | — | — | E 11 | E 13 | E 13 | E 14 | E 14 | E 14 | E 14 | — | E 13 | — | E 13 | — | E 12 | E 12 | — | E 18 | E 18 | — | — |
| kJ | 2 | — | — | — | — | 2 | 3 | 4 | 4 | 4 | 4 | 4 | — | 3 | — | 3 | — | 3 | 3 | — | 6 | 6 | — | — |
Wind waves Height (m) Direction Period (s) | NNE 3 | NE 4 | NE 5 | NE 5 | NE 5 | — | — | — | — | — | — | — | E 4 | — | — | — | — | — | ESE 3 | ESE 3 | ESE 4 | ESE 4 | ESE 5 | ESE 6 |
| kJ | 7 | 28 | 37 | 40 | 29 | — | — | — | — | — | — | — | 1 | — | — | — | — | — | 1 | 4 | 10 | 25 | 42 | 74 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 171 | 655 | 655 | 813 | 871 | 871 | 884 | 818 | 805 | 784 | 784 | 742 | 725 | 850 | 725 | 809 | 725 | 725 | 560 | 504 | 422 | 399 | 372 | 276 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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