Surf Forecasts:
How big are the waves at Green Harbor today (23 Aug):
- Morning surf: Morning surf (23 Aug, local time) - 1.5ft (0.5m), 5s period with E swell.
- Afternoon surf: Afternoon surf (23 Aug, local time) - 1.5ft (0.5m), 5s period with ENE swell.
- Evening surf: Evening surf (23 Aug, local time) - 1.5ft (0.4m), 6s period with ENE swell.
The current surf forecast for Green Harbor at 3PM is: 0.5m 5s primary swell from a East-northeast direction and 0.2m 12s secondary swell from a East direction (forecast issued at 07:00am August 23). An open ocean swell of 0.2m 3s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Aug) | 1.5ft (0.5m) | 5s |
| Afternoon (23 Aug) | 1.5ft (0.5m) | 5s |
| Evening (23 Aug) | 1.5ft (0.4m) | 6s |
Table - waves today at Green Harbor. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Sun afternoon. Warm (max 27°C on Mon afternoon, min 17°C on Tue night). Wind will be generally light. | |||||||||||||||||||||||
Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||||||||
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 5 | E 5 | E 5 | ENE 5 | E 5 | E 6 | E 6 | E 6 | E 6 | SE 7 | ESE 6 | E 6 | E 11 | E 11 | E 11 | E 11 | E 11 | E 11 | E 11 | E 11 | E 11 | E 11 | E 11 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 20 | 14 | 14 | 15 | 14 | 20 | 12 | 12 | 21 | 11 | 13 | 12 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
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-on | cross-on | cross-on | on | on | on | on | on | on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | on | cross-on |
High Tide | 8:45AM2.27m | 8:58PM2.66m | 9:38AM2.31m | 9:49PM2.72m | 10:25AM2.38m | 10:34PM2.79m | |||||||||||||||||
Low Tide | 2:26AM0.46m | 2:33PM0.67m | 3:21AM0.43m | 3:25PM0.62m | 4:10AM0.37m | 4:13PM0.55m | |||||||||||||||||
 |  |  |  | |  | | | |  | | | | | | | | | | | | | | |
 | 5:58 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — |
 | — | — | — | — | 7:30 | — | — | — | — | — | — | — | 7:30 | — | — | — | — | — | — | — | 7:28 | — | — |
mm | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 19 | 21 | 22 | 25 | 23 | 22 | 22 | 21 | 21 | 26 | 27 | 27 | 22 | 21 | 20 | 19 | 18 | 22 | 25 | 24 | 22 | 19 |
Feels °C | 21 | 20 | 22 | 24 | 26 | 24 | 22 | 22 | 20 | 20 | 23 | 21 | 23 | 20 | 19 | 18 | 17 | 15 | 19 | 24 | 23 | 21 | 17 |
Swell 1 Height (m) Direction Period (s) | E 5 | E 5 | E 5 | ENE 5 | E 5 | E 6 | E 6 | E 6 | E 6 | SE 7 | ESE 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 6 | E 11 | SSE 3 | E 11 |
| kJ | 20 | 14 | 14 | 15 | 14 | 20 | 12 | 12 | 21 | 11 | 13 | 12 | 7 | 7 | 7 | 7 | 6 | 3 | 3 | 3 | 9 | 2 | 9 |
Swell 2 Height (m) Direction Period (s) | NNE 4 | NNE 4 | NNE 4 | E 12 | E 12 | E 12 | E 12 | SSE 4 | E 12 | ENE 6 | E 11 | E 11 | E 11 | E 11 | E 11 | E 11 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | E 6 | E 11 | ESE 6 |
| kJ | 4 | 4 | 4 | 11 | 11 | 11 | 11 | 2 | 11 | 8 | 10 | 10 | 10 | 9 | 9 | 9 | 4 | 5 | 5 | 4 | 3 | 9 | 4 |
Swell 3 Height (m) Direction Period (s) | E 12 | E 12 | E 12 | E 12 | E 12 | NNE 4 | NE 5 | E 12 | NE 4 | E 12 | — | SE 6 | SE 6 | SE 6 | E 11 | ESE 7 | E 11 | E 11 | E 11 | E 11 | ESE 6 | ESE 6 | E 6 |
| kJ | 12 | 12 | 11 | 11 | 11 | 2 | 1 | 11 | 1 | 11 | — | 6 | 1 | 1 | 9 | 5 | 9 | 9 | 9 | 9 | 4 | 4 | 2 |
Wind waves Height (m) Direction Period (s) | — | — | ESE 2 | E 3 | S 3 | — | S 2 | — | — | — | — | SSW 2 | S 3 | SSW 3 | SSW 3 | — | — | — | — | — | S 3 | — | — |
| kJ | — | — | 1 | 1 | 3 | — | 1 | — | — | — | — | 1 | 4 | 3 | 1 | — | — | — | — | — | 4 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 832 | 131 | 832 | 1808 | 537 | 346 | 85 | 77 | 52 | 6 | 52 | 152 | 85 | 81 | 54 | 91 | 54 | 54 | 85 | 95 | 94 | 85 | 85 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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