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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 Wednesday 25 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
4.1° 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 5PM is: 0.4m 9s primary swell from a East-northeast direction and 0.1m 8s secondary swell from a East direction, 0.3m 2s secondary swell from a South direction (forecast issued at 01:00pm March 25). The wind direction is predicted to be cross-offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Mar) | 2ft (0.6m) | 9s |
| Afternoon (25 Mar) | 1.5ft (0.5m) | 9s |
| Evening (25 Mar) | 1.5ft (0.4m) | 10s |
Table - waves today at Nantasket Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Wednesday 25 | Thursday 26 | Friday 27 | Saturday 28 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 9 | 10 | 10 | 9 | 9 | 9 | 6 | 7 | 8 | 8 | 8 | 8 | 9 | 9 | 10 | 6 | 6 | 6 | 6 | 6 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 42 | 43 | 29 | 29 | 18 | 18 | 7 | 6 | 6 | 5 | 9 | 9 | 6 | 9 | 10 | 12 | 8 | 8 | 38 | 56 | 52 | 52 | 69 | 60 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- off | off | cross- off | cross- off | cross | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on |
High Tide / height (m) | 5:25PM 2.55 | 5:43AM 2.91 | 6:34PM 2.48 | 6:52AM 2.84 | 7:44PM 2.50 | |||||||||||||||||||
Low Tide / height (m) | 11:08AM 0.02 | 11:22PM 0.34 | 12:16PM 0.12 | 12:31AM 0.39 | 1:26PM 0.17 | 1:41AM 0.38 | ||||||||||||||||||
Wednesday 25 | Thursday 26 | Friday 27 | Saturday 28 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:35 | - | - | - | - | - | - | - | 6:33 |
| Sunset | - | - | 7:00 | - | - | - | - | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:02 | - | - | - | - | - |
 | |  |  | | |  |  | | | | | |  | | | | | |  |  | | | | |
Rain (mm) | - | - | - | - | - | - | 1 | - | - | - | - | 1 | 3 | 6 | 1 | - | - | - | - | - | - | - | - | - |
| Temp. °C | 4 | 8 | 10 | 5 | 4 | 6 | 7 | 10 | 11 | 16 | 18 | 12 | 10 | 9 | 10 | 7 | 5 | 5 | 5 | 2 | 1 | 0 | -2 | -3 |
| Feels °C (?) | -1 | 3 | 4 | -1 | -2 | 0 | 1 | 3 | 4 | 11 | 15 | 9 | 8 | 6 | 7 | 2 | -1 | -1 | -1 | -5 | -5 | -6 | -8 | -9 |
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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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