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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 13 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
6.1° C
(Which is 1.0°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: 0.5m 9s primary swell from a East direction and 0.4m 9s secondary swell from a Southeast direction, 0.6m 4s secondary swell from a South direction (forecast issued at 01:00am April 13). The wind direction is predicted to be cross-offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Apr) | 1.5ft (0.5m) | 9s |
| Afternoon (13 Apr) | 2.5ft (0.7m) | 5s |
| Evening (13 Apr) | 1.5ft (0.4m) | 9s |
Table - waves today at Nantasket Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 13 | Tuesday 14 | Wednesday 15 | ||||||||||||||||||||||
| 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) (?) | 9 | 9 | 9 | 9 | 9 | 6 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 4 | 9 | 9 | 9 | 9 | 9 | 8 | 8 | 8 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 56 | 38 | 38 | 38 | 24 | 29 | 26 | 26 | 27 | 27 | 16 | 17 | 16 | 16 | 8 | 8 | 8 | 6 | 6 | 6 | 6 | 6 | 1 | 1 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | off | off | off | glass | cross- on | cross- on | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | off |
High Tide / height (m) | 8:16PM 2.44 | 8:32AM 2.68 | 9:06PM 2.61 | 9:24AM 2.80 | 9:51PM 2.82 | 10:12AM 2.92 | ||||||||||||||||||
Low Tide / height (m) | 2:17AM 0.49 | 2:50PM 0.30 | 3:10AM 0.31 | 3:37PM 0.17 | 3:59AM 0.09 | 4:21PM 0.05 | ||||||||||||||||||
Monday 13 | Tuesday 14 | Wednesday 15 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:05 | - | - | - | - | - | - | - | 6:05 | - | - | - | - | - | - | - | 6:03 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 7:22 | - | - | - | - | - | - | - | 7:22 | - | - | - | - | - | - | - | 7:23 | - |
 |  | |  | |  | |  | | | |  | | | | |  |  | | | | | | | |
Rain (mm) | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 4 | - | - | - | - | - | - | 1 |
| Temp. °C | 6 | 6 | 7 | 10 | 14 | 20 | 21 | 21 | 20 | 18 | 17 | 15 | 18 | 19 | 21 | 18 | 16 | 17 | 18 | 18 | 23 | 24 | 27 | 23 |
| Feels °C (?) | 1 | 0 | 1 | 4 | 9 | 15 | 16 | 18 | 18 | 16 | 16 | 14 | 18 | 16 | 18 | 16 | 14 | 16 | 18 | 17 | 21 | 22 | 25 | 23 |
- Map Icons:
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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