Surf Forecasts:
How big are the waves at Green Harbor today (21 Oct):
- Morning surf: Morning surf (21 Oct, local time) - 8ft (2.5m), 8s period with ENE swell.
- Afternoon surf: Afternoon surf (21 Oct, local time) - 8ft (2.5m), 8s period with ENE swell.
- Evening surf: Evening surf (21 Oct, local time) - 8ft (2.5m), 9s period with ENE swell.
The current surf forecast for Green Harbor at 11AM is: 2.5m 8s primary swell from a East-northeast direction (forecast issued at 07:00am October 21). An open ocean swell of 0.2m 11s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Oct) | 8ft (2.5m) | 8s |
| Afternoon (21 Oct) | 8ft (2.5m) | 8s |
| Evening (21 Oct) | 8ft (2.5m) | 9s |
Table - waves today at Green Harbor. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Wed night. Very mild (max 14°C on Thu afternoon, min 7°C on Fri night). Winds decreasing (strong winds from the NNE on Thu morning, light winds from the NW by Fri night). | |||||||||||||||||||||||
Wednesday 21 | Thursday 22 | Friday 23 | |||||||||||||||||||||
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) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | NE 9 | NE 9 | NE 9 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 688 | 749 | 866 | 909 | 999 | 940 | 1021 | 1060 | 1101 | 1083 | 1050 | 970 | 822 | 599 | 762 | 955 | 1010 | 921 | 789 | 640 | 517 | 443 | 330 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off |
High Tide | 8:15AM2.43m | 8:31PM2.61m | 9:02AM2.56m | 9:21PM2.68m | 9:46AM2.72m | 10:08PM2.75m | |||||||||||||||||
Low Tide | 2:15PM0.58m | 2:45AM0.40m | 3:06PM0.44m | 3:31AM0.33m | 3:54PM0.27m | ||||||||||||||||||
 |  |  | | |  | |  | | | | |  | |  | | | | | | | | | |
 | 7:01 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:03 | — | — | — | — | — | — |
 | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:49 | — | — |
mm | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 11 | 12 | 14 | 13 | 11 | 10 | 9 | 8 | 8 | 9 | 9 | 10 | 10 |
Feels °C | 2 | 2 | 2 | 2 | 2 | 3 | 2 | 2 | 1 | 1 | 2 | 3 | 7 | 5 | 2 | 1 | 1 | 0 | 0 | 2 | 3 | 4 | 5 |
Swell 1 Height (m) Direction Period (s) | SSE 10 | SSE 11 | SSE 11 | SSE 12 | SSE 12 | SSE 12 | S 11 | S 10 | S 10 | S 10 | S 10 | ENE 9 | S 10 | NE 8 | — | S 8 | — | — | — | — | — | — | — |
| kJ | 10 | 11 | 13 | 13 | 13 | 13 | 2 | 2 | 2 | 2 | 8 | 645 | 8 | 599 | — | 1 | — | — | — | — | — | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | ESE 10 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 10 | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | NE 9 | NE 9 | NE 9 | NE 8 | NE 8 | — | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 | NE 8 |
| kJ | 688 | 749 | 866 | 909 | 999 | 940 | 1021 | 1060 | 1101 | 1083 | 1050 | 970 | 822 | — | 762 | 955 | 1010 | 921 | 789 | 640 | 517 | 443 | 330 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 529 | 529 | 977 | 977 | 977 | 501 | 500 | 959 | 976 | 412 | 500 | 55 | 49 | 102 | 55 | 501 | 55 | 39 | 49 | 49 | 0 | 0 | 0 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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