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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 6 am Saturday 21 Feb 2026 ESTForecast 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
2.2° C
(Which is 1.2°C colder than average for this time of year)How big are the waves at Nantasket Beach today?
The current surf forecast for Nantasket Beach at 12PM is: 1.3m 6s primary swell from a East-northeast direction and 0.1m 14s secondary swell from a East direction (forecast issued at 06:00am February 21). The wind direction is predicted to be cross-onshore.
| Time (EST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Feb) | 4ft (1.2m) | 6s |
| Afternoon (21 Feb) | 3ft (0.9m) | 6s |
| Evening (21 Feb) | 3.5ft (1.0m) | 7s |
Table - waves today at Nantasket Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 21 | Sunday 22 | Monday 23 | Tue 24 | |||||||||||||||||||||
| 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 5 | 6 | 6 | 6 | 6 | 6 | 7 | 7 | 7 | 7 | 7 | 7 | 5 | 5 | 6 | 7 | 8 | 10 | 11 | 12 | 12 | 12 | 12 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 59 | 67 | 104 | 115 | 56 | 97 | 93 | 46 | 47 | 66 | 68 | 66 | 42 | 82 | 271 | 635 | 1626 | 3690 | 5974 | 8073 | 7522 | 5537 | 3488 | 2052 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross- on | cross | cross- on | cross- on | cross- on | cross | cross | cross- on | on | on | on | on | on | cross- on | cross- on | cross- on | cross- on | cross | cross | cross- off | cross- off | cross- off |
High Tide / height (m) | 1:24AM 3.05 | 1:47PM 2.95 | 2:08AM 3.08 | 2:37PM 2.81 | 2:57AM 3.05 | 3:32PM 2.65 | ||||||||||||||||||
Low Tide / height (m) | 7:36AM -0.16 | 7:54PM -0.09 | 8:25AM -0.13 | 8:41PM 0.01 | 9:20AM -0.06 | 9:34PM 0.14 | ||||||||||||||||||
Saturday 21 | Sunday 22 | Monday 23 | Tue 24 | |||||||||||||||||||||
| Sunrise | - | 6:31 | - | - | - | - | - | - | - | 6:30 | - | - | - | - | - | - | - | 6:28 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 5:22 | - | - | - | - | - | - | - | 5:23 | - | - | - | - | - | - | - | 5:24 | - | - | - |
 |  |  | |  |  |  | | | | | | | | | | |  | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 0 | -1 | -2 | -2 | -2 | -1 | -1 | -1 | -2 | 0 | 1 | 1 | 2 | 1 | 0 | 0 | 0 | 0 | -1 | -2 | -2 | -2 | -3 | -4 |
| Feels °C (?) | -5 | -7 | -8 | -6 | -7 | -5 | -5 | -5 | -6 | -4 | -4 | -4 | -4 | -6 | -9 | -10 | -13 | -15 | -17 | -16 | -14 | -12 | -13 | -14 |
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Live Wave Height (m)
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Nantasket Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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