Surf Forecasts:
How big are the waves at Nantasket Beach today (17 Sep):
- Morning surf: Morning surf (17 Sep, local time) - 1.5ft (0.4m), 7s period with E swell.
- Afternoon surf: Afternoon surf (17 Sep, local time) - 1.5ft (0.4m), 7s period with E swell.
- Evening surf: Evening surf (17 Sep, local time) - 1.5ft (0.4m), 7s period with E swell.
The current surf forecast for Nantasket Beach at 2PM is: 0.4m 7s primary swell from a East direction and 0.1m 12s secondary swell from a East direction (forecast issued at 07:00am September 17). The wind direction is predicted to be cross-offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Sep) | 1.5ft (0.4m) | 7s |
| Afternoon (17 Sep) | 1.5ft (0.4m) | 7s |
| Evening (17 Sep) | 1.5ft (0.4m) | 7s |
Table - waves today at Nantasket Beach. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Thu night. Warm (max 25°C on Thu afternoon, min 12°C on Sat morning). Wind will be generally light. | |||||||||||||||||||||||
Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||||||||
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 | 11 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | E 8 | E 8 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | ESE 7 | ESE 7 | ESE 7 | E 12 | E 12 | ESE 7 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | ENE 5 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 18 | 18 | 17 | 16 | 15 | 15 | 14 | 14 | 9 | 16 | 16 | 15 | 9 | 11 | 11 | 11 | 132 | 167 | 92 | 62 | 46 | 24 | 18 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross |
High Tide | 4:12AM2.49m | 4:21PM2.74m | 5:06AM2.36m | 5:15PM2.64m | 6:03AM2.28m | 6:12PM2.58m | |||||||||||||||||
Low Tide | 10:08AM0.52m | 10:50PM0.36m | 10:59AM0.64m | 11:47PM0.45m | 11:55AM0.70m | ||||||||||||||||||
 |  |  |  | |  |  | | | | | | |  | | | | | | | | | | |
 | 6:24 | — | — | — | — | — | — | — | 6:26 | — | — | — | — | — | — | — | 6:26 | — | — | — | — | — | — |
 | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:47 | — | — | — | — | — | — | — | 6:45 | — | — |
mm | — | — | — | — | — | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 19 | 23 | 25 | 25 | 21 | 20 | 19 | 19 | 20 | 22 | 24 | 24 | 21 | 17 | 15 | 13 | 12 | 12 | 13 | 13 | 13 | 13 |
Feels °C | 21 | 20 | 24 | 26 | 25 | 20 | 19 | 19 | 20 | 21 | 18 | 23 | 22 | 16 | 12 | 11 | 8 | 7 | 7 | 9 | 9 | 9 | 10 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | E 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | E 8 | ESE 8 | ESE 8 | NE 6 | NE 6 | NE 6 | ENE 5 |
| kJ | 18 | 18 | 17 | 16 | 15 | 15 | 14 | 14 | 9 | 16 | 16 | 15 | 9 | 9 | 9 | 11 | 5 | 6 | 11 | 62 | 46 | 24 | 18 |
Swell 2 Height (m) Direction Period (s) | E 13 | E 13 | E 13 | E 12 | E 12 | E 12 | SE 4 | SSE 4 | E 6 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | ESE 7 | ESE 7 | ESE 7 | ESE 7 |
| kJ | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 1 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 11 | 3 | 3 | 10 | 10 | 10 | 10 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | E 12 | E 12 | SE 4 | SE 4 | — | — | — | E 12 | E 12 | — | — | — | — | E 11 | E 11 | E 11 | E 11 |
| kJ | — | — | — | — | — | — | 3 | 3 | 1 | 1 | — | — | — | 11 | 11 | — | — | — | — | 3 | 2 | 2 | 2 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SE 3 | SE 4 | — | — | — | — | — | — | — | — | N 3 | NNE 4 | NE 6 | NE 6 | NE 6 | — | — | — | — |
| kJ | — | — | — | — | 2 | 3 | — | — | — | — | — | — | — | — | 3 | 8 | 132 | 167 | 92 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 79 | 58 | 67 | 844 | 850 | 55 | 55 | 55 | 58 | 58 | 213 | 181 | 181 | 523 | 531 | 531 | 28 | 28 | 32 | 297 | 1237 | 1237 | 58 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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