Surf Forecasts:
How big are the waves at Green Harbor today (31 Jul):
- Afternoon surf: Afternoon surf (31 Jul, local time) - 1.5ft (0.4m), 6s period with ENE swell.
- Evening surf: Evening surf (31 Jul, local time) - 1.5ft (0.4m), 6s period with ENE swell.
The current surf forecast for Green Harbor at 11PM is: 0.4m 6s primary swell from a East-northeast direction and 0.2m 10s secondary swell from a East-southeast direction (forecast issued at 07:00pm July 31). The wind direction is predicted to be onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Jul) | - | - |
| Afternoon (31 Jul) | 1.5ft (0.4m) | 6s |
| Evening (31 Jul) | 1.5ft (0.4m) | 6s |
Table - waves today at Green Harbor. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 9mm), mostly falling on Mon morning. Warm (max 27°C on Sat afternoon, min 21°C on Fri night). Winds increasing (calm on Sat morning, fresh winds from the SSW by Mon afternoon). | |||||||||||||||||||
Fri 31 | Saturday 1 | Sunday 2 | |||||||||||||||||
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) | ENE 6 | ENE 6 | ENE 6 | NE 6 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SE 9 | SE 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 22 | 18 | 12 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 3 | 3 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | on | cross-on | glassy | cross-off | cross-on | cross-on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 1:36AM2.90m | 2:05PM2.68m | 2:16AM2.89m | 2:43PM2.76m | |||||||||||||||
Low Tide | 7:24PM0.36m | 7:54AM0.12m | 8:06PM0.30m | 8:32AM0.12m | 8:50PM0.24m | ||||||||||||||
 | |  | | | | |  | |  |  |  | | | | | | | | |
 | — | — | — | — | 5:35 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — |
 | — | 8:01 | — | — | — | — | — | — | — | 8:00 | — | — | — | — | — | — | — | 8:00 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 23 | 21 | 21 | 21 | 21 | 26 | 27 | 26 | 23 | 22 | 21 | 21 | 22 | 25 | 27 | 26 | 23 | 22 |
Feels °C | 24 | 24 | 21 | 21 | 21 | 22 | 28 | 27 | 25 | 22 | 22 | 21 | 22 | 23 | 25 | 25 | 24 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | ENE 6 | ENE 6 | ENE 6 | NE 6 | ENE 6 | ESE 10 | ENE 6 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SE 9 | SE 9 |
| kJ | 22 | 18 | 12 | 8 | 6 | 9 | 3 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 3 | 3 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | E 6 | ESE 9 | E 6 | E 6 | E 5 | E 6 | E 6 | E 6 | E 6 | E 5 | E 5 | E 5 | E 5 | E 9 |
| kJ | 8 | 8 | 9 | 9 | 9 | 3 | 8 | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 2 |
Swell 3 Height (m) Direction Period (s) | S 8 | S 8 | S 8 | S 8 | E 6 | NE 5 | S 8 | NE 4 | NE 4 | — | — | S 7 | S 7 | S 8 | E 5 | E 5 | E 5 | S 7 | — |
| kJ | 6 | 6 | 5 | 5 | 3 | 1 | 5 | 1 | 1 | — | — | 1 | 1 | 1 | 1 | 1 | 1 | 1 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | S 2 | S 3 | SSW 3 | SSW 3 | SSW 2 | — | — | SSE 3 | SSE 3 | SSE 3 | SSE 3 |
| kJ | — | — | — | — | — | — | — | — | 2 | 3 | 2 | 1 | 1 | — | — | 2 | 3 | 2 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 52 | 85 | 54 | 54 | 54 | 54 | 102 | 124 | 647 | 515 | 515 | 515 | 515 | 671 | 2652 | 1671 | 1671 | 735 | 543 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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