Surf Forecasts:
How big are the waves at Nantasket Beach today (18 Aug):
- Morning surf: Morning surf (18 Aug, local time) - 1ft (0.3m), 4s period with ESE swell.
- Afternoon surf: Afternoon surf (18 Aug, local time) - 0.5ft (0.2m), 9s period with ESE swell.
- Evening surf: Evening surf (18 Aug, local time) - 1ft (0.3m), 9s period with ESE swell.
The current surf forecast for Nantasket Beach at 2AM is: 0.2m 4s primary swell from a East-southeast direction and 0.1m 9s secondary swell from a East direction (forecast issued at 07:00pm August 17). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Aug) | 1ft (0.3m) | 4s |
| Afternoon (18 Aug) | 0.5ft (0.2m) | 9s |
| Evening (18 Aug) | 1ft (0.3m) | 9s |
Table - waves today at Nantasket Beach. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 29°C on Wed afternoon, min 20°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Mon 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||||
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 9 | E 9 | E 9 | E 9 | ESE 4 | ESE 4 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 7 | ESE 7 | ESE 7 | ESE 6 | ESE 6 | ESE 6 | ESE 6 |
Wave Graph  | |||||||||||||||||||
 kJ | 2 | 2 | 2 | 2 | 4 | 4 | 7 | 8 | 16 | 16 | 15 | 8 | 9 | 15 | 15 | 14 | 14 | 13 | 13 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross-on | glassy | glassy | glassy | glassy | cross-off | glassy | glassy | glassy |
High Tide | 3:27PM2.98m | 3:54AM2.73m | 4:15PM2.89m | 4:47AM2.55m | 5:05PM2.78m | ||||||||||||||
Low Tide | 9:42PM0.11m | 9:59AM0.24m | 10:35PM0.22m | 10:48AM0.41m | |||||||||||||||
 |  |  | | | | | | | |  | | |  | | | | | | |
 | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:54 | — | — | — | — | — | — |
 | 7:42 | — | — | — | — | — | — | — | 7:39 | — | — | — | — | — | — | — | 7:38 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 21 | 20 | 20 | 20 | 20 | 22 | 22 | 22 | 21 | 21 | 21 | 20 | 21 | 26 | 29 | 29 | 28 | 25 |
Feels °C | 23 | 22 | 22 | 22 | 22 | 21 | 23 | 23 | 23 | 22 | 23 | 24 | 23 | 24 | 27 | 29 | 29 | 28 | 26 |
Swell 1 Height (m) Direction Period (s) | E 9 | E 9 | ESE 4 | ESE 4 | ESE 4 | ESE 4 | E 8 | ESE 9 | E 4 | E 4 | E 4 | ENE 4 | ESE 7 | ESE 7 | ESE 7 | ESE 6 | ESE 6 | ESE 6 | ESE 6 |
| kJ | 2 | 2 | 1 | 2 | 4 | 4 | 1 | 8 | 5 | 5 | 3 | 3 | 9 | 15 | 15 | 14 | 14 | 13 | 13 |
Swell 2 Height (m) Direction Period (s) | — | — | E 9 | E 9 | E 9 | E 9 | ESE 8 | — | ESE 9 | ESE 9 | ESE 9 | ESE 7 | ENE 4 | E 9 | ESE 9 | ESE 8 | ESE 8 | E 8 | E 8 |
| kJ | — | — | 2 | 2 | 2 | 1 | 7 | — | 16 | 16 | 15 | 4 | 1 | 6 | 7 | 7 | 7 | 6 | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | ESE 9 | E 9 | ENE 4 | ENE 4 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 8 | 6 | 1 | 2 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ESE 3 | ESE 3 | — | — | — | NNE 2 | E 4 | E 4 | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | 1 | — | — | — | 1 | 6 | 5 | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 241 | 117 | 117 | 117 | 117 | 117 | 98 | 113 | 113 | 108 | 58 | 12 | 42 | 55 | 58 | 55 | 55 | 58 | 58 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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