Surf Forecasts:
How big are the waves at Nantasket Beach today (18 Jul):
- Morning surf: Morning surf (18 Jul, local time) - 0.5ft (0.1m), 14s period with E swell.
- Afternoon surf: Afternoon surf (18 Jul, local time) - 2ft (0.6m), 3s period with S swell.
- Evening surf: Evening surf (18 Jul, local time) - 0.5ft (0.1m), 13s period with E swell.
The current surf forecast for Nantasket Beach at 4PM is: 0.7m 3s primary swell from a South direction and 0.1m 13s secondary swell from a East direction, 0.1m 8s secondary swell from a East direction (forecast issued at 01:00pm July 18). The wind direction is predicted to be cross-offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Jul) | 0.5ft (0.1m) | 14s |
| Afternoon (18 Jul) | 2ft (0.6m) | 3s |
| Evening (18 Jul) | 0.5ft (0.1m) | 13s |
Table - waves today at Nantasket Beach. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Sat afternoon. Warm (max 28°C on Sat afternoon, min 18°C on Sun night). Winds decreasing (fresh winds from the SSW on Sat night, light winds from the WNW by Mon morning). | |||||||||||||||||||||
Sat 18 | Sunday 19 | Monday 20 | |||||||||||||||||||
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 14 | S 3 | S 4 | E 13 | E 13 | E 13 | SE 5 | E 13 | E 13 | E 13 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 9 | E 12 | E 12 | E 12 | E 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 4 | 5 | 12 | 3 | 3 | 3 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 3 | 3 | 3 | 3 |
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 | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-on | cross-on | cross-off | cross-off |
High Tide | 3:14PM3.01m | 3:31AM3.02m | 4:05PM2.96m | 4:26AM2.83m | 4:57PM2.90m | ||||||||||||||||
Low Tide | 8:57AM-0.20m | 9:18PM0.06m | 9:47AM-0.05m | 10:14PM0.15m | 10:38AM0.12m | ||||||||||||||||
 |  |  |  |  | |  | | | | | |  | | | | | | | | | |
 | — | — | — | — | — | — | 5:22 | — | — | — | — | — | — | — | 5:24 | — | — | — | — | — | — |
 | — | — | — | 8:15 | — | — | — | — | — | — | — | 8:15 | — | — | — | — | — | — | — | 8:15 | — |
mm | — | — | 3 | 3 | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 28 | 21 | 20 | 22 | 22 | 21 | 21 | 22 | 25 | 26 | 25 | 21 | 19 | 18 | 20 | 25 | 26 | 27 | 23 | 20 |
Feels °C | 24 | 24 | 19 | 17 | 22 | 21 | 21 | 19 | 17 | 21 | 22 | 22 | 18 | 16 | 15 | 17 | 23 | 23 | 23 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | E 14 | E 13 | E 13 | SSE 5 | SE 6 | SSE 6 | SE 5 | SE 6 | SE 6 | SE 6 | SE 6 | N 3 | SE 6 | N 3 | N 3 | N 4 | — | E 12 | SE 9 | SE 9 | SE 9 |
| kJ | 4 | 4 | 3 | 9 | 1 | 12 | 4 | 2 | 2 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | — | 3 | 3 | 3 | 3 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 13 | E 13 | E 13 | E 13 | E 13 | E 13 | E 13 | E 8 | SE 8 | E 12 | SE 6 | SE 6 | E 12 | SE 6 | — | E 12 | E 12 | E 12 |
| kJ | 1 | 1 | 1 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 3 | 3 | 1 | 1 | 3 | 1 | — | 3 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | — | — | E 13 | — | — | E 8 | E 12 | E 12 | E 8 | E 12 | E 12 | SE 6 | E 9 | E 9 | E 12 | — | — |
| kJ | 1 | 1 | 1 | 1 | — | — | 3 | — | — | 1 | 3 | 3 | 1 | 3 | 3 | 1 | 2 | 2 | 3 | — | — |
Wind waves Height (m) Direction Period (s) | — | S 3 | S 4 | SW 3 | S 3 | SW 3 | WSW 3 | NW 2 | NNW 3 | NNW 3 | N 3 | — | N 3 | N 3 | — | — | — | — | SE 2 | SE 3 | SE 3 |
| kJ | — | 5 | 12 | 2 | 5 | 3 | 1 | 1 | 4 | 4 | 2 | — | 1 | 3 | — | — | — | — | 1 | 2 | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 523 | 653 | 961 | 2735 | 3012 | 450 | 877 | 529 | 55 | 108 | 91 | 90 | 98 | 91 | 90 | 98 | 117 | 117 | 98 | 131 | 131 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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