Surf Forecasts:
How big are the waves at Green Harbor today (20 Jul):
- Morning surf: Morning surf (20 Jul, local time) - 0.5ft (0.1m), 12s period with E swell.
- Afternoon surf: Afternoon surf (20 Jul, local time) - 0.5ft (0.1m), 12s period with E swell.
- Evening surf: Evening surf (20 Jul, local time) - 0.5ft (0.1m), 12s period with E swell.
The current surf forecast for Green Harbor at 8AM is: 0.1m 12s primary swell from a East direction and 0.2m 4s secondary swell from a North direction (forecast issued at 01:00am July 20). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Jul) | 0.5ft (0.1m) | 12s |
| Afternoon (20 Jul) | 0.5ft (0.1m) | 12s |
| Evening (20 Jul) | 0.5ft (0.1m) | 12s |
Table - waves today at Green Harbor. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 27mm), heaviest during Tue night. Warm (max 27°C on Wed afternoon, min 19°C on Mon morning). Winds increasing (calm on Mon morning, fresh winds from the SW by Tue night). | ||||||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | ||||||||||||||||||||||
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 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | SE 3 | SE 4 | E 11 | SE 6 | ESE 6 | ESE 6 | ESE 7 | ESE 5 | ESE 5 | ESE 10 | ESE 10 | ESE 10 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 5 | 9 | 2 | 86 | 24 | 18 | 11 | 9 | 9 | 19 | 19 | 38 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | glassy | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-on | on | on | on | on | on | on | on | cross-on |
High Tide | 4:31AM2.92m | 5:00PM2.97m | 5:27AM2.72m | 5:54PM2.90m | 6:25AM2.56m | 6:49PM2.83m | ||||||||||||||||||
Low Tide | 10:40AM0.08m | 11:13PM0.17m | 11:31AM0.24m | 00:10AM0.25m | 12:24PM0.39m | |||||||||||||||||||
 | |  | | | | | | | |  |  | | |  |  |  |  | | |  | | | | |
 | — | 5:22 | — | — | — | — | — | — | — | 5:24 | — | — | — | — | — | — | — | 5:24 | — | — | — | — | — | — |
 | — | — | — | — | — | — | 8:13 | — | — | — | — | — | — | — | 8:12 | — | — | — | — | — | — | — | 8:10 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 19 | — | — | — | 1 | — | 1 | 2 |
Temp °C | 19 | 18 | 19 | 23 | 24 | 25 | 21 | 20 | 19 | 19 | 20 | 23 | 24 | 23 | 22 | 22 | 22 | 22 | 22 | 26 | 26 | 27 | 23 | 22 |
Feels °C | 16 | 15 | 16 | 22 | 21 | 21 | 17 | 17 | 17 | 18 | 18 | 20 | 20 | 22 | 21 | 21 | 20 | 22 | 22 | 25 | 25 | 26 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | N 4 | N 4 | N 4 | N 4 | — | E 8 | SE 8 | SE 8 | SE 8 | E 12 | E 12 | E 12 | E 12 | E 11 | E 11 | ESE 6 | ESE 6 | ESE 6 | ESE 5 | ESE 5 | ESE 5 | ESE 6 | SE 6 | ESE 10 |
| kJ | 2 | 2 | 1 | 1 | — | 1 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 39 | 24 | 18 | 11 | 9 | 9 | 6 | 8 | 38 |
Swell 2 Height (m) Direction Period (s) | SE 8 | SE 9 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 8 | E 8 | E 8 | — | — | — | E 11 | E 7 | E 7 | ESE 7 | ESE 7 | ESE 9 | ESE 10 | ESE 10 | E 7 |
| kJ | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 1 | 1 | 1 | — | — | — | 2 | 8 | 4 | 9 | 5 | 8 | 19 | 19 | 1 |
Swell 3 Height (m) Direction Period (s) | E 12 | E 12 | SE 6 | SE 6 | E 9 | — | E 12 | — | — | — | — | — | E 8 | — | — | — | E 11 | E 11 | — | E 7 | — | — | E 7 | — |
| kJ | 3 | 3 | 1 | 1 | 1 | — | 3 | — | — | — | — | — | 1 | — | — | — | 2 | 2 | — | 1 | — | — | 1 | — |
Wind waves Height (m) Direction Period (s) | NNW 4 | — | — | — | SE 6 | SSE 2 | S 3 | — | — | SSE 4 | SSE 4 | SE 3 | SE 3 | SE 4 | ESE 5 | SE 6 | S 2 | S 3 | SSW 2 | SSW 2 | SSW 3 | S 4 | S 4 | SSW 3 |
| kJ | 4 | — | — | — | 1 | 1 | 1 | — | — | 1 | 1 | 2 | 5 | 9 | 27 | 86 | 1 | 3 | 1 | 1 | 3 | 12 | 9 | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 96 | 74 | 96 | 96 | 832 | 551 | 551 | 515 | 131 | 543 | 1198 | 1198 | 1198 | 1198 | 238 | 124 | 91 | 92 | 6 | 95 | 124 | 91 | 43 | 6 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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