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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 30 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
8.8° C
(Which is 1.5°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 9AM is: 1.4m 10s primary swell from a East direction (forecast issued at 01:00am April 30). The wind direction is predicted to be glassy and the swell rating is 2.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Apr) | 4.5ft (1.4m) | 10s |
| Afternoon (30 Apr) | 4.5ft (1.3m) | 10s |
| Evening (30 Apr) | 4ft (1.2m) | 10s |
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 3mm), mostly falling on Thu afternoon. Very mild (max 15°C on Fri afternoon, min 7°C on Thu night). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 30 | Friday 1 | Saturday 2 | ||||||||||||||||||||||
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 |    |    |    | |||||||||||||||||||||
E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 9 | E 9 | |
362 | 392 | 392 | 325 | 318 | 312 | 266 | 260 | 219 | 205 | 166 | 162 | 159 | 126 | 123 | 120 | 93 | 93 | 93 | 93 | 91 | 89 | 93 | 99 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | glassy | cross | glassy | glassy | glassy | glassy | off | off | cross-off | cross-off | cross-off | cross-off | off | cross | cross-on | glassy | cross-off | cross-off | glassy | glassy | cross | cross | cross | |
High Tide | 11:24AM2.79m | 11:32PM3.01m | 12:05PM2.75m | 00:08AM3.01m | 12:44PM2.71m | |||||||||||||||||||
Low Tide | 5:11AM0.02m | 5:21PM0.24m | 5:52AM-0.02m | 5:59PM0.29m | 6:31AM-0.01m | 6:36PM0.34m | ||||||||||||||||||
 | |  | |  | |  | | | |  | | | | |  | | | | | | | | | |
 | — | 5:39 | — | — | — | — | — | — | — | 5:39 | — | — | — | — | — | — | — | 5:37 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:40 | — | — | — | — | — | — | — | 7:42 | — | — | — | — | — | — | — | 7:43 | — | — |
— | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | |
Temp °C | 7 | 8 | 8 | 9 | 9 | 10 | 11 | 10 | 9 | 7 | 8 | 12 | 14 | 15 | 13 | 11 | 10 | 9 | 7 | 7 | 7 | 8 | 8 | 8 |
6 | 7 | 6 | 8 | 8 | 9 | 10 | 8 | 6 | 4 | 3 | 7 | 8 | 10 | 10 | 8 | 8 | 6 | 3 | 6 | 5 | 5 | 5 | 5 | |
Swell 1 Height (m) Direction Period (s) | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 8 | E 8 | E 9 | E 9 |
 kJ | 362 | 392 | 392 | 325 | 318 | 312 | 266 | 260 | 219 | 205 | 166 | 162 | 159 | 126 | 123 | 120 | 93 | 93 | 93 | 93 | 91 | 89 | 93 | 99 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | NNW 3 | N 3 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | NNW 2 | — | — | — | — | — | — | — | — | — | — | SSE 2 | S 3 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | 1 | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 17 | 0 | 7 | 0 | 17 | 7 | 0 | 0 | 0 | 0 | 0 | 26 | 26 | 7 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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