Surf Forecasts:
How big are the waves at Green Harbor today (12 Sep):
- Morning surf: Morning surf (12 Sep, local time) - 0.5ft (0.1m), 10s period with E swell.
- Afternoon surf: Afternoon surf (12 Sep, local time) - 0.5ft (0.1m), 10s period with E swell.
- Evening surf: Evening surf (12 Sep, local time) - 0.5ft (0.2m), 10s period with E swell.
The current surf forecast for Green Harbor at 2PM is: 0.1m 10s primary swell from a East direction (forecast issued at 07:00am September 12). The wind direction is predicted to be cross-offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (12 Sep) | 0.5ft (0.1m) | 10s |
| Afternoon (12 Sep) | 0.5ft (0.1m) | 10s |
| Evening (12 Sep) | 0.5ft (0.2m) | 10s |
Table - waves today at Green Harbor. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 52mm), heaviest during Sun afternoon. Warm (max 23°C on Sat afternoon, min 15°C on Mon night). Wind will be generally light. | |||||||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | |||||||||||||||||||||
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 11 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | ESE 10 | E 10 | ESE 9 | ESE 9 | E 9 | ESE 9 | NNE 4 | ESE 8 | ESE 8 | ESE 9 | ESE 9 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 2 | 2 | 2 | 2 | 2 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 18 | 7 | 17 | 17 | 7 | 17 | 14 | 14 | 14 | 15 | 16 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | off | cross | cross-on | on | cross-on | cross-off | cross-off | off | cross-off | off | cross-off |
High Tide | 12:51PM3.13m | 1:14AM3.09m | 1:33PM3.12m | 1:59AM2.96m | 2:15PM3.06m | ||||||||||||||||||
Low Tide | 6:37AM-0.10m | 6:59PM-0.12m | 7:19AM-0.02m | 7:44PM-0.09m | 8:01AM0.10m | 8:29PM-0.01m | |||||||||||||||||
 |  | | | |  | | | |  |  |  | |  | | | | |  | | | | | |
 | 6:18 | — | — | — | — | — | — | — | 6:18 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — |
 | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:55 | — | — | — | — | — | — | — | 6:53 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | 5 | 38 | 4 | — | — | — | — | 4 | 1 | — | — | — | — |
Temp °C | 18 | 18 | 19 | 21 | 23 | 20 | 19 | 19 | 19 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 19 | 16 | 18 | 20 | 19 | 19 | 18 |
Feels °C | 17 | 17 | 17 | 17 | 19 | 18 | 18 | 18 | 18 | 20 | 20 | 19 | 20 | 21 | 21 | 19 | 19 | 13 | 14 | 17 | 18 | 18 | 14 |
Swell 1 Height (m) Direction Period (s) | NNE 4 | NNE 3 | NNE 3 | — | — | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 4 | E 4 | E 4 | E 4 | ESE 9 | NNE 4 | ESE 8 | NE 4 | NE 4 | ESE 9 |
| kJ | 1 | 1 | 1 | — | — | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 7 | 4 | 4 | 5 | 3 | 17 | 10 | 14 | 5 | 4 | 16 |
Swell 2 Height (m) Direction Period (s) | E 11 | E 10 | E 10 | E 10 | E 10 | — | — | — | S 10 | S 10 | S 10 | ESE 10 | ESE 10 | E 10 | E 9 | E 9 | E 9 | S 6 | ESE 8 | S 6 | ESE 8 | ESE 9 | E 15 |
| kJ | 2 | 2 | 2 | 2 | 2 | — | — | — | 2 | 2 | 2 | 9 | 18 | 7 | 7 | 7 | 7 | 3 | 14 | 1 | 14 | 15 | 4 |
Swell 3 Height (m) Direction Period (s) | E 8 | E 8 | E 7 | E 7 | — | S 10 | S 10 | — | — | — | — | — | S 9 | S 9 | ESE 9 | ESE 9 | SE 6 | SSW 3 | ESE 7 | — | — | — | — |
| kJ | 1 | 1 | 1 | 1 | — | 2 | 2 | — | — | — | — | — | 2 | 2 | 17 | 17 | 1 | 1 | 9 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SE 2 | SE 3 | SE 3 | SSE 3 | SSE 4 | SE 4 | SE 4 | SE 4 | E 3 | — | — | — | — | NNE 3 | — | NE 4 | NE 4 | NE 4 | NE 4 |
| kJ | — | — | — | — | 1 | 1 | 2 | 1 | 1 | 3 | 3 | 3 | 4 | — | — | — | — | 8 | — | 7 | 4 | 2 | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 649 | 656 | 1198 | 1205 | 959 | 734 | 95 | 525 | 467 | 382 | 85 | 151 | 106 | 81 | 127 | 341 | 57 | 85 | 131 | 91 | 85 | 94 | 515 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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