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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 Monday 23 Mar 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
4.2° C
(Which is normal for this time of year)How big are the waves at Nantasket Beach today?
The current surf forecast for Nantasket Beach at 7AM is: 1.1m 5s primary swell from a Northeast direction and 0.3m 8s secondary swell from a East-southeast direction (forecast issued at 01:00am March 23). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Mar) | 4.5ft (1.4m) | 5s |
| Afternoon (23 Mar) | 6.5ft (2.0m) | 7s |
| Evening (23 Mar) | 6ft (1.8m) | 7s |
Table - waves today at Nantasket Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 23 | Tuesday 24 | Wednesday 25 | ||||||||||||||||||||||
| 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 | 11 AM | 2 PM | 5 PM | 8 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |  |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 7 | 8 | 4 | 5 | 6 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 19 | 26 | 28 | 66 | 198 | 325 | 404 | 346 | 407 | 294 | 372 | 400 | 355 | 304 | 295 | 208 | 180 | 116 | 84 | 41 | 47 | 28 | 30 | 18 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- on | cross- on | cross- on | cross | cross- on | cross- on | cross | cross- off | cross- off | cross | cross | cross | cross | cross- off | cross- off | cross- off | cross- off | off | off | cross- off | cross- off | cross- off |
High Tide / height (m) | 2:45AM 3.24 | 3:22PM 2.83 | 3:37AM 3.15 | 4:20PM 2.67 | 4:36AM 3.03 | 5:25PM 2.55 | ||||||||||||||||||
Low Tide / height (m) | 8:32PM -0.05 | 9:08AM -0.25 | 9:22PM 0.08 | 10:05AM -0.12 | 10:18PM 0.22 | 11:08AM 0.02 | ||||||||||||||||||
Monday 23 | Tuesday 24 | Wednesday 25 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:41 | - | - | - | - | - | - | - | 6:39 | - | - | - | - | - | - | - | 6:39 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:58 | - | - | - | - | - | - | - | 6:59 | - | - | - | - | - | - | - | 7:00 | - |
 |  | |  | |  | |  |  |  | |  | | | | | | | |  | | | | | |
Rain (mm) | 3 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 3 | 1 | 1 | 1 | 1 | 1 | 2 | 2 | 1 | 0 | 0 | 0 | 1 | 3 | 5 | 3 | 1 | 1 | 0 | 0 | 4 | 8 | 9 | 5 |
| Feels °C (?) | -2 | -6 | -6 | -6 | -7 | -6 | -6 | -4 | -3 | -4 | -5 | -6 | -3 | -1 | 0 | -4 | -6 | -6 | -6 | -6 | -1 | 3 | 3 | -1 |
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Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
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