Surf Forecasts:
How big are the waves at Nantasket Beach today (23 Aug):
- Morning surf: Morning surf (23 Aug, local time) - 2ft (0.6m), 5s period with ENE swell.
- Afternoon surf: Afternoon surf (23 Aug, local time) - 2ft (0.6m), 5s period with E swell.
- Evening surf: Evening surf (23 Aug, local time) - 1.5ft (0.5m), 5s period with E swell.
The current surf forecast for Nantasket Beach at 4AM is: 0.7m 5s primary swell from a East-northeast direction and 0.2m 8s secondary swell from a East direction (forecast issued at 07:00pm August 22). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Aug) | 2ft (0.6m) | 5s |
| Afternoon (23 Aug) | 2ft (0.6m) | 5s |
| Evening (23 Aug) | 1.5ft (0.5m) | 5s |
Table - waves today at Nantasket Beach. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Sun morning. Warm (max 28°C on Mon afternoon, min 17°C on Tue morning). Wind will be generally light. | |||||||||||||||||||
Sat 22 | Sunday 23 | Monday 24 | |||||||||||||||||
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 | |||||||||||||||||||
Wave Height (m) Direction Period (s) | E 5 | ENE 5 | ENE 5 | ENE 5 | ENE 5 | ENE 5 | E 5 | E 5 | E 5 | E 5 | E 12 | E 6 | E 6 | SE 7 | E 6 | E 11 | E 6 | E 6 | ESE 6 |
Wave Graph | |||||||||||||||||||
47 | 49 | 37 | 31 | 20 | 21 | 20 | 20 | 19 | 16 | 11 | 19 | 12 | 12 | 20 | 10 | 7 | 12 | 13 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | glassy | on | on | on | on | glassy | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 7:49PM2.62m | 8:40AM2.27m | 8:46PM2.66m | 9:34AM2.33m | 9:38PM2.73m | ||||||||||||||
Low Tide | 2:27AM0.45m | 2:28PM0.67m | 3:22AM0.40m | 3:21PM0.60m | |||||||||||||||
— | — | — | — | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | |
7:34 | — | — | — | — | — | — | — | 7:32 | — | — | — | — | — | — | — | 7:30 | — | — | |
mm | — | — | — | — | — | — | 1 | — | 1 | — | 1 | — | — | — | — | — | — | — | — |
Temp °C | 19 | 18 | 19 | 19 | 19 | 20 | 21 | 21 | 24 | 23 | 21 | 21 | 20 | 20 | 26 | 28 | 28 | 24 | 21 |
Feels °C | 18 | 18 | 21 | 21 | 21 | 21 | 23 | 23 | 27 | 26 | 22 | 23 | 20 | 19 | 22 | 24 | 24 | 21 | 20 |
Swell 1 Height (m) Direction Period (s) | E 13 | ENE 5 | ENE 5 | ENE 5 | ENE 5 | ENE 5 | E 5 | E 5 | E 5 | E 5 | E 4 | E 6 | E 6 | E 6 | E 6 | ESE 6 | E 6 | E 6 | ESE 6 |
3 | 49 | 37 | 31 | 20 | 21 | 20 | 20 | 19 | 16 | 10 | 19 | 12 | 6 | 20 | 8 | 7 | 12 | 13 | |
Swell 2 Height (m) Direction Period (s) | E 13 | E 13 | E 13 | E 8 | E 8 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | SE 7 | E 12 | E 6 | SSE 4 | E 11 | E 11 |
13 | 3 | 3 | 4 | 5 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 12 | 11 | 7 | 1 | 9 | 9 | |
Swell 3 Height (m) Direction Period (s) | — | E 13 | E 8 | E 13 | E 13 | E 8 | E 12 | SE 8 | SE 8 | SE 9 | SE 9 | SE 8 | ESE 7 | E 12 | ENE 6 | E 11 | ESE 6 | ESE 11 | SE 6 |
— | 13 | 1 | 3 | 12 | 1 | 11 | 3 | 3 | 3 | 3 | 3 | 5 | 11 | 4 | 10 | 4 | 12 | 5 | |
Wind waves Height (m) Direction Period (s) | E 5 | N 4 | — | — | — | — | ESE 2 | — | — | SE 4 | — | SSE 4 | — | — | — | — | SW 2 | S 4 | SSW 2 |
47 | 8 | — | — | — | — | 1 | — | — | 7 | — | 3 | — | — | — | — | 1 | 5 | 1 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 753 | 67 | 67 | 12 | 844 | 884 | 844 | 1949 | 359 | 12 | 55 | 12 | 55 | 55 | 79 | 314 | 55 | 55 | 55 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)











