Surf Forecasts:
How big are the waves at Green Harbor today (11 Sep):
- Morning surf: Morning surf (11 Sep, local time) - 0.5ft (0.1m), 10s period with E swell.
- Afternoon surf: Afternoon surf (11 Sep, local time) - 0.5ft (0.2m), 10s period with E swell.
- Evening surf: Evening surf (11 Sep, local time) - 0.5ft (0.2m), 11s period with E swell.
The current surf forecast for Green Harbor at 11AM is: 0.2m 10s primary swell from a East direction (forecast issued at 07:00am September 11). An open ocean swell of 0.2m 6s is not directed at the surf break, a second open ocean swell of 0.4m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Sep) | 0.5ft (0.1m) | 10s |
| Afternoon (11 Sep) | 0.5ft (0.2m) | 10s |
| Evening (11 Sep) | 0.5ft (0.2m) | 11s |
Table - waves today at Green Harbor. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 74mm), heaviest during Sun afternoon. Warm (max 22°C on Fri afternoon, min 17°C on Fri morning). Wind will be generally light. | |||||||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||||||||
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) | 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 | E 10 | E 10 | SSE 4 | E 10 | E 10 | E 10 | ESE 5 | E 5 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 10 | 2 | 8 | 8 | 9 | 9 | 9 | 9 | 9 | 2 | 2 | 2 | 2 | 2 | 8 | 8 | 8 | 16 | 9 | 8 | 7 | 32 | 25 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross-off | glassy | cross-off | cross | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-on | cross | cross | cross |
High Tide | 12:07PM3.08m | 00:28AM3.18m | 12:51PM3.13m | 1:14AM3.09m | 1:33PM3.12m | ||||||||||||||||||
Low Tide | 5:53AM-0.14m | 6:12PM-0.10m | 6:37AM-0.10m | 6:59PM-0.12m | 7:19AM-0.02m | 7:44PM-0.09m | |||||||||||||||||
 |  | | | |  | | | | | | | |  | | | |  |  | |  | | | |
 | 6:16 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — |
 | — | — | — | — | 6:59 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:55 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 24 | 40 | 7 | — | — |
Temp °C | 19 | 17 | 19 | 22 | 22 | 21 | 20 | 18 | 17 | 17 | 19 | 20 | 22 | 20 | 20 | 20 | 20 | 19 | 18 | 20 | 20 | 19 | 18 |
Feels °C | 17 | 14 | 17 | 21 | 20 | 20 | 19 | 15 | 15 | 15 | 18 | 17 | 19 | 19 | 19 | 19 | 20 | 19 | 16 | 21 | 22 | 17 | 18 |
Swell 1 Height (m) Direction Period (s) | ESE 10 | E 10 | E 10 | N 4 | N 4 | N 4 | NNE 5 | NNE 5 | NE 4 | NE 3 | NE 3 | NE 3 | ENE 3 | ENE 3 | E 10 | E 10 | E 10 | SE 4 | E 10 | E 10 | E 10 | ESE 5 | E 5 |
| kJ | 10 | 2 | 8 | 5 | 3 | 1 | 3 | 2 | 1 | 1 | 2 | 2 | 1 | 1 | 8 | 8 | 8 | 3 | 8 | 8 | 7 | 32 | 25 |
Swell 2 Height (m) Direction Period (s) | E 8 | SE 6 | S 6 | E 10 | E 11 | E 11 | E 11 | E 11 | E 11 | E 10 | E 10 | E 10 | E 10 | E 10 | — | — | — | E 10 | ESE 10 | — | — | E 10 | E 9 |
| kJ | 1 | 1 | 3 | 8 | 9 | 9 | 9 | 9 | 9 | 2 | 2 | 2 | 2 | 2 | — | — | — | 8 | 9 | — | — | 7 | 7 |
Swell 3 Height (m) Direction Period (s) | S 6 | SE 6 | — | S 4 | S 6 | NE 5 | — | E 8 | E 8 | E 8 | E 7 | E 7 | — | S 10 | — | — | — | — | — | — | — | SE 5 | ESE 9 |
| kJ | 1 | 1 | — | 2 | 1 | 1 | — | 1 | 1 | 1 | 1 | 1 | — | 2 | — | — | — | — | — | — | — | 6 | 17 |
Wind waves Height (m) Direction Period (s) | WNW 3 | NNW 2 | N 4 | — | — | — | — | — | NNE 2 | NE 3 | — | — | SE 3 | SSE 3 | SE 3 | SE 4 | SE 4 | SSE 4 | SE 4 | SE 3 | ESE 4 | ESE 5 | — |
| kJ | 1 | 1 | 4 | — | — | — | — | — | 1 | 3 | — | — | 1 | 2 | 2 | 2 | 5 | 16 | 3 | 5 | 21 | 61 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 106 | 208 | 96 | 174 | 515 | 174 | 174 | 832 | 832 | 1205 | 1198 | 1205 | 1205 | 959 | 734 | 525 | 91 | 295 | 132 | 106 | 102 | 81 | 81 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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