Surf Forecasts:
How big are the waves at Green Harbor today (10 Sep):
- Morning surf: Morning surf (10 Sep, local time) - 2ft (0.6m), 4s period with SW swell.
- Afternoon surf: Afternoon surf (10 Sep, local time) - 0.5ft (0.1m), 10s period with E swell.
- Evening surf: Evening surf (10 Sep, local time) - 0.5ft (0.2m), 10s period with E swell.
The current surf forecast for Green Harbor at 9PM is: 0.2m 10s primary swell from a East direction and 0.1m 5s secondary swell from a Southeast direction, 0.4m 3s secondary swell from a West-northwest direction (forecast issued at 01:00pm September 10). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Sep) | 2ft (0.6m) | 4s |
| Afternoon (10 Sep) | 0.5ft (0.1m) | 10s |
| Evening (10 Sep) | 0.5ft (0.2m) | 10s |
Table - waves today at Green Harbor. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 31mm), heaviest during Sun morning. Warm (max 30°C on Thu afternoon, min 17°C on Fri morning). Wind will be generally light. | |||||||||||||||||||||
Thu 10 | Friday 11 | Saturday 12 | |||||||||||||||||||
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) | SW 3 | E 10 | E 10 | E 10 | ESE 10 | ESE 10 | ESE 10 | E 10 | E 10 | E 10 | E 11 | E 11 | E 11 | E 11 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2 | 2 | 8 | 8 | 10 | 10 | 10 | 8 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 8 | 2 | 2 | 2 | 2 | 8 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | off | cross-off | cross-on | glassy | cross-off | off | glassy | cross-off | cross-off | cross-on | cross-on | cross-on |
High Tide | 11:20AM2.99m | 11:40PM3.23m | 12:07PM3.08m | 00:28AM3.18m | 12:51PM3.13m | ||||||||||||||||
Low Tide | 5:22PM-0.04m | 5:53AM-0.14m | 6:12PM-0.10m | 6:37AM-0.10m | 6:59PM-0.12m | ||||||||||||||||
 | | |  |  | |  |  | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 6:16 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — |
 | — | — | 7:00 | — | — | — | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 6:58 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 30 | 29 | 26 | 22 | 20 | 19 | 17 | 20 | 22 | 21 | 21 | 20 | 20 | 18 | 18 | 20 | 22 | 23 | 20 | 20 |
Feels °C | 25 | 27 | 25 | 22 | 19 | 17 | 17 | 14 | 17 | 20 | 18 | 19 | 19 | 18 | 17 | 17 | 19 | 19 | 19 | 18 | 19 |
Swell 1 Height (m) Direction Period (s) | SE 5 | E 10 | E 10 | E 10 | ESE 10 | ESE 10 | ESE 10 | E 10 | E 10 | N 4 | NNE 4 | NE 5 | NNE 5 | NNE 4 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 |
| kJ | 1 | 2 | 8 | 8 | 10 | 10 | 10 | 8 | 8 | 5 | 3 | 1 | 2 | 2 | 9 | 8 | 2 | 2 | 2 | 2 | 8 |
Swell 2 Height (m) Direction Period (s) | E 10 | SE 5 | SE 5 | SE 5 | E 8 | E 8 | E 8 | — | S 5 | E 10 | E 11 | N 4 | E 11 | E 11 | NE 4 | E 8 | — | E 7 | — | — | S 10 |
| kJ | 2 | 1 | 1 | 1 | 1 | 1 | 1 | — | 2 | 8 | 9 | 1 | 9 | 9 | 1 | 1 | — | 1 | — | — | 2 |
Swell 3 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | SSE 6 | SE 6 | SE 6 | SE 6 | SE 6 | S 4 | NE 4 | E 11 | — | E 8 | E 8 | — | E 7 | S 6 | — | S 10 | — |
| kJ | 1 | 1 | 1 | 1 | 3 | 1 | 2 | 1 | 2 | 1 | 1 | 9 | — | 1 | 1 | — | 1 | 1 | — | 2 | — |
Wind waves Height (m) Direction Period (s) | SW 3 | — | WNW 3 | WNW 3 | WNW 3 | NW 3 | NW 3 | N 3 | N 4 | — | — | — | — | — | — | — | — | — | SE 2 | SE 3 | SSE 3 |
| kJ | 2 | — | 3 | 4 | 4 | 2 | 1 | 3 | 7 | — | — | — | — | — | — | — | — | — | 1 | 1 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 91 | 316 | 87 | 72 | 102 | 102 | 102 | 106 | 96 | 174 | 466 | 151 | 151 | 174 | 832 | 832 | 1198 | 1205 | 1205 | 959 | 95 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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