Surf Forecasts:
How big are the waves at Nantasket Beach today (21 Jul):
- Morning surf: Morning surf (21 Jul, local time) - 0.5ft (0.1m), 12s period with E swell.
- Afternoon surf: Afternoon surf (21 Jul, local time) - 2ft (0.6m), 4s period with SE swell.
- Evening surf: Evening surf (21 Jul, local time) - 2.5ft (0.7m), 5s period with SE swell.
The current surf forecast for Nantasket Beach at 6AM is: 0.1m 12s primary swell from a East direction and 0.1m 8s secondary swell from a East direction, 0.2m 3s secondary swell from a South-southeast direction (forecast issued at 01:00am July 21). The wind direction is predicted to be cross-shore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Jul) | 0.5ft (0.1m) | 12s |
| Afternoon (21 Jul) | 2ft (0.6m) | 4s |
| Evening (21 Jul) | 2.5ft (0.7m) | 5s |
Table - waves today at Nantasket Beach. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 15mm), heaviest on Tue night. Warm (max 27°C on Wed afternoon, min 16°C on Wed night). Winds decreasing (fresh winds from the SSW on Tue night, light winds from the E by Thu afternoon). | ||||||||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | ||||||||||||||||||||||
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 | 11 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | E 12 | E 12 | E 12 | E 12 | SE 4 | SE 4 | SE 5 | SE 6 | SE 6 | SE 5 | SE 6 | SE 8 | SE 8 | SE 6 | SE 5 | ESE 11 | ESE 11 | ESE 10 | ESE 10 | ESE 10 | SE 9 | SE 8 | SE 8 | SE 7 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 3 | 3 | 3 | 3 | 6 | 16 | 22 | 44 | 33 | 14 | 15 | 10 | 31 | 11 | 12 | 22 | 44 | 42 | 40 | 39 | 19 | 16 | 15 | 14 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | off | cross-off | cross-off | on | on | cross | cross-off |
High Tide | 5:24AM2.64m | 5:49PM2.83m | 6:22AM2.49m | 6:41PM2.78m | 7:20AM2.38m | 7:33PM2.73m | ||||||||||||||||||
Low Tide | 11:13PM0.23m | 11:30AM0.29m | 00:11AM0.30m | 12:22PM0.44m | 1:09AM0.34m | 1:15PM0.55m | ||||||||||||||||||
 | |  | | |  |  |  |  |  |  |  | | | | | | | |  | | | | | |
 | — | 5:24 | — | — | — | — | — | — | — | 5:24 | — | — | — | — | — | — | — | 5:26 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:14 | — | — | — | — | — | — | — | 8:13 | — | — | — | — | — | — | — | 8:12 | — |
mm | — | — | — | — | — | 1 | 6 | 5 | — | — | — | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 18 | 20 | 24 | 26 | 22 | 22 | 23 | 21 | 21 | 22 | 23 | 26 | 27 | 25 | 21 | 18 | 16 | 17 | 21 | 23 | 22 | 19 | 19 |
Feels °C | 16 | 18 | 20 | 21 | 23 | 20 | 23 | 22 | 20 | 21 | 23 | 23 | 26 | 27 | 25 | 18 | 15 | 14 | 14 | 18 | 20 | 18 | 16 | 17 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 12 | E 11 | E 11 | E 11 | SE 6 | SE 5 | SE 6 | SE 5 | SE 8 | SE 6 | SE 5 | SE 5 | ESE 11 | ESE 10 | ESE 10 | ESE 10 | SE 9 | SE 8 | SE 8 | SE 7 |
| kJ | 1 | 1 | 1 | 1 | 3 | 2 | 2 | 2 | 33 | 14 | 15 | 6 | 31 | 11 | 12 | 10 | 44 | 42 | 40 | 39 | 19 | 16 | 15 | 14 |
Swell 2 Height (m) Direction Period (s) | E 12 | E 12 | E 12 | E 12 | E 8 | — | — | — | E 11 | ESE 7 | ESE 7 | SE 8 | — | ESE 8 | SE 6 | ESE 11 | — | — | — | — | ESE 10 | — | — | — |
| kJ | 3 | 3 | 3 | 3 | 1 | — | — | — | 2 | 9 | 5 | 10 | — | 6 | 7 | 22 | — | — | — | — | 10 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | E 12 | — | — | — | — | — | — | — | — | E 7 | E 7 | — | — | ESE 10 | — | — | — | — | — | — | — | — | — |
| kJ | — | 3 | — | — | — | — | — | — | — | — | 1 | 4 | — | — | 9 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 3 | — | — | SE 3 | SE 4 | SE 4 | SE 5 | SE 6 | — | SSW 2 | — | SSW 2 | SSW 2 | SW 2 | SSW 2 | — | — | — | — | — | — | — | — | — |
| kJ | 1 | — | — | 2 | 6 | 16 | 22 | 44 | — | 1 | — | 1 | 1 | 1 | 1 | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 523 | 653 | 653 | 1230 | 1230 | 1230 | 1230 | 581 | 131 | 131 | 64 | 26 | 26 | 12 | 12 | 12 | 12 | 12 | 42 | 55 | 58 | 131 | 58 | 55 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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