Surf Forecasts:
How big are the waves at Green Harbor today (13 Aug):
- Morning surf: Morning surf (13 Aug, local time) - 0.5ft (0.1m), 14s period with E swell.
- Afternoon surf: Afternoon surf (13 Aug, local time) - 0.5ft (0.1m), 10s period with E swell.
- Evening surf: Evening surf (13 Aug, local time) - 0.5ft (0.1m), 10s period with E swell.
The current surf forecast for Green Harbor at 6AM is: 0.1m 14s primary swell from a East direction and 0.1m 7s secondary swell from a East direction, 0.1m 11s secondary swell from a East direction (forecast issued at 01:00am August 13). The wind direction is predicted to be cross-offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Aug) | 0.5ft (0.1m) | 14s |
| Afternoon (13 Aug) | 0.5ft (0.1m) | 10s |
| Evening (13 Aug) | 0.5ft (0.1m) | 10s |
Table - waves today at Green Harbor. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 12mm), heaviest on Thu morning. Warm (max 26°C on Thu afternoon, min 18°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | ||||||||||||||||||||||
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 14 | E 14 | E 14 | E 14 | E 10 | E 10 | E 10 | E 13 | E 13 | E 13 | E 13 | E 13 | N 4 | E 13 | E 10 | E 13 | E 12 | E 12 | E 12 | E 12 | E 12 | NNE 4 | NE 4 | NE 4 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 4 | 4 | 4 | 4 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 5 | 3 | 2 | 3 | 3 | 3 | 3 | 3 | 3 | 8 | 4 | 3 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross-on | cross-on | glassy | cross-off | cross-off | cross | cross | cross | cross-off | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-on | on |
High Tide | 11:53PM3.38m | 12:27PM3.00m | 00:45AM3.36m | 1:15PM3.07m | 1:34AM3.27m | 2:01PM3.10m | ||||||||||||||||||
Low Tide | 6:13AM-0.27m | 6:27PM-0.08m | 7:01AM-0.26m | 7:17PM-0.11m | 7:47AM-0.20m | 8:07PM-0.09m | ||||||||||||||||||
 |  |  |  | |  |  | | | |  | | | | | | | | | | | |  | | |
 | — | 5:47 | — | — | — | — | — | — | — | 5:48 | — | — | — | — | — | — | — | 5:48 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:45 | — | — | — | — | — | — | — | 7:45 | — | — | — | — | — | — | — | 7:43 | — | — |
mm | — | 3 | 8 | 3 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 22 | 19 | 18 | 21 | 26 | 26 | 25 | 22 | 21 | 20 | 20 | 23 | 25 | 26 | 25 | 21 | 20 | 19 | 18 | 20 | 20 | 21 | 21 | 21 |
Feels °C | 19 | 19 | 19 | 21 | 27 | 28 | 25 | 23 | 20 | 17 | 17 | 20 | 24 | 24 | 23 | 16 | 17 | 16 | 14 | 17 | 18 | 19 | 18 | 18 |
Swell 1 Height (m) Direction Period (s) | E 7 | E 7 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | — | E 10 | E 10 | E 10 | N 4 | N 4 | N 4 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | NNE 4 | NE 4 | NE 4 |
| kJ | 1 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | — | 2 | 2 | 2 | 5 | 2 | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 8 | 4 | 3 |
Swell 2 Height (m) Direction Period (s) | E 11 | E 11 | E 7 | E 7 | — | — | E 7 | E 7 | E 10 | E 13 | E 13 | E 13 | E 10 | E 10 | E 10 | — | E 12 | E 12 | E 12 | E 12 | E 12 | E 9 | E 9 | E 9 |
| kJ | 2 | 2 | 1 | 1 | — | — | 1 | 1 | 2 | 3 | 3 | 3 | 2 | 2 | 2 | — | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | E 14 | E 14 | E 14 | E 14 | E 7 | E 7 | — | E 13 | E 13 | E 7 | — | — | E 13 | E 13 | — | E 13 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | — | — |
| kJ | 4 | 4 | 4 | 4 | 1 | 1 | — | 3 | 3 | 1 | — | — | 3 | 3 | — | 3 | 3 | 3 | 3 | 3 | 3 | 3 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | NW 3 | NNW 4 | N 4 | — | S 5 | — | N 3 | N 4 | NNE 5 | NNE 5 | NNE 5 | NNE 5 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 1 | 2 | 5 | — | 2 | — | 3 | 13 | 17 | 18 | 21 | 13 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 649 | 647 | 2473 | 2492 | 3535 | 174 | 174 | 2482 | 2482 | 649 | 945 | 2655 | 3518 | 3518 | 3518 | 649 | 649 | 878 | 977 | 977 | 526 | 649 | 2659 | 1928 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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