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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 pm Saturday 23 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
13.2° C
(Which is 2.5°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 6PM is: 0.1m 13s primary swell from a East direction and 0.1m 10s secondary swell from a East direction, 0.2m 3s secondary swell from a East-northeast direction (forecast issued at 01:00pm May 23). The wind direction is predicted to be onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 May) | 0.5ft (0.1m) | 13s |
| Afternoon (23 May) | 0.5ft (0.1m) | 10s |
| Evening (23 May) | 0.5ft (0.1m) | 10s |
Table - waves today at Nantasket Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 28mm), heaviest during Sun night. Very mild (max 19°C on Mon night, min 7°C on Sun afternoon). Wind will be generally light. | ||||||||||||||||||||||||
Sat 23 | Sunday 24 | Monday 25 | Tue 26 | |||||||||||||||||||||
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 | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
E 14 | E 10 | E 13 | E 10 | E 13 | E 12 | E 12 | ESE 4 | ESE 4 | ESE 5 | ESE 5 | ESE 5 | ESE 6 | ESE 6 | SE 6 | ESE 6 | ESE 6 | ESE 6 | E 8 | E 8 | E 7 | E 7 | E 7 | E 7 | |
4 | 2 | 3 | 2 | 3 | 3 | 3 | 4 | 11 | 19 | 17 | 36 | 93 | 123 | 201 | 80 | 50 | 50 | 82 | 58 | 54 | 54 | 54 | 40 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | on | on | cross-off | cross-off | cross-off | off | cross | glassy | cross-off | cross-off | glassy | |
High Tide | 6:05PM2.76m | 6:23AM2.81m | 7:05PM2.79m | 7:28AM2.72m | 8:02PM2.82m | |||||||||||||||||||
Low Tide | 11:43AM0.07m | 00:08AM0.34m | 12:43PM0.17m | 1:13AM0.33m | 1:41PM0.25m | 2:17AM0.28m | ||||||||||||||||||
 | | | |  | | | |  | | |  |  | | | | | |  | |  | |  | | |
 | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — | — | — | — | — | — | — | 5:13 | — |
 | — | — | — | 8:05 | — | — | — | — | — | — | — | 8:06 | — | — | — | — | — | — | — | 8:07 | — | — | — | 8:07 |
— | — | — | — | — | — | — | — | 1 | 4 | 5 | 6 | 4 | 1 | 1 | — | 4 | 2 | — | — | — | — | — | — | |
Temp °C | 13 | 14 | 13 | 13 | 12 | 11 | 11 | 10 | 8 | 7 | 8 | 10 | 10 | 11 | 12 | 12 | 10 | 11 | 17 | 19 | 18 | 15 | 12 | 13 |
10 | 11 | 10 | 10 | 10 | 9 | 7 | 6 | 3 | 2 | 3 | 5 | 5 | 8 | 12 | 11 | 8 | 10 | 17 | 20 | 19 | 14 | 12 | 13 | |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | — | — | — | ENE 3 | E 9 | E 9 | E 9 | E 9 | SE 9 | E 10 | — | ESE 6 | ESE 6 | ESE 6 | ESE 6 | E 8 | E 8 | E 7 | E 7 | E 7 | E 7 |
 kJ | 2 | 2 | 2 | — | — | — | 1 | 2 | 2 | 2 | 2 | 3 | 2 | — | 121 | 80 | 50 | 50 | 82 | 58 | 54 | 54 | 54 | 40 |
Swell 2 Height (m) Direction Period (s) | E 14 | — | E 13 | E 10 | E 10 | E 10 | E 10 | E 12 | — | E 18 | E 12 | — | — | — | E 17 | E 16 | ESE 9 | E 16 | E 16 | E 16 | E 16 | — | E 16 | E 16 |
| kJ | 4 | — | 3 | 2 | 2 | 2 | 2 | 3 | — | 6 | 3 | — | — | — | 6 | 5 | 17 | 5 | 5 | 5 | 5 | — | 5 | 5 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | E 13 | E 12 | E 12 | — | E 18 | — | E 18 | — | — | — | — | E 16 | E 16 | E 16 | E 16 | E 16 | E 16 | — | — | — |
| kJ | — | — | — | — | 3 | 3 | 3 | — | 6 | — | 6 | — | — | — | — | 5 | 5 | 5 | 5 | 5 | 5 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | ENE 2 | ENE 3 | ESE 3 | — | — | SE 3 | ESE 4 | ESE 4 | ESE 5 | ESE 5 | ESE 5 | ESE 6 | ESE 6 | SE 6 | — | — | — | — | — | — | — | — | — |
| kJ | — | 1 | 1 | 1 | — | — | 2 | 4 | 11 | 19 | 17 | 36 | 93 | 123 | 201 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 117 | 725 | 725 | 117 | 122 | 725 | 725 | 725 | 508 | 505 | 505 | 742 | 104 | 93 | 7 | 0 | 0 | 0 | 0 | 7 | 0 | 7 | 7 | 12 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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