Surf Forecasts:
How big are the waves at Green Harbor today (19 Sep):
- Morning surf: Morning surf (19 Sep, local time) - 4.5ft (1.3m), 6s period with NE swell.
- Afternoon surf: Afternoon surf (19 Sep, local time) - 1ft (0.3m), 7s period with E swell.
- Evening surf: Evening surf (19 Sep, local time) - 2.5ft (0.8m), 6s period with NE swell.
The current surf forecast for Green Harbor at 9AM is: 1.3m 6s primary swell from a Northeast direction and 0.2m 12s secondary swell from a East direction, 0.2m 12s secondary swell from a East direction (forecast issued at 01:00am September 19). The wind direction is predicted to be offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Sep) | 4.5ft (1.3m) | 6s |
| Afternoon (19 Sep) | 1ft (0.3m) | 7s |
| Evening (19 Sep) | 2.5ft (0.8m) | 6s |
Table - waves today at Green Harbor. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 12mm), heaviest on Sun night. Very mild (max 17°C on Sun night, min 13°C on Sat morning). Mainly fresh winds. | ||||||||||||||||||||||||
Saturday 19 | Sunday 20 | Monday 21 | ||||||||||||||||||||||
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 | NE 6 | NE 6 | E 7 | NE 6 | NE 6 | NE 6 | ENE 5 | NE 5 | E 11 | E 11 | E 9 | E 9 | E 9 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 10 | E 10 | E 10 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 11 | 11 | 132 | 120 | 10 | 54 | 39 | 24 | 19 | 13 | 10 | 9 | 15 | 15 | 15 | 13 | 12 | 12 | 12 | 5 | 5 | 8 | 8 | 7 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross | cross | cross-on | cross-off | off | off | off | off | cross-off | off |
High Tide | 6:05AM2.29m | 6:22PM2.58m | 7:05AM2.25m | 7:22PM2.57m | 8:05AM2.27m | 8:20PM2.61m | ||||||||||||||||||
Low Tide | 11:48PM0.45m | 12:00PM0.70m | 00:47AM0.50m | 12:59PM0.73m | 1:46AM0.51m | 1:57PM0.69m | ||||||||||||||||||
 | |  | |  | |  | |  | | |  | |  |  | | | | | | | | | | |
 | — | 6:26 | — | — | — | — | — | — | — | 6:26 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:44 | — | — | — | — | — | — | — | 6:42 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 3 | 2 | 2 | 2 | 1 | — | — | — | — | — |
Temp °C | 17 | 15 | 14 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 16 | 15 | 15 | 15 | 16 | 17 | 15 | 14 | 14 | 14 | 15 | 16 | 16 |
Feels °C | 13 | 9 | 9 | 8 | 9 | 10 | 10 | 10 | 11 | 11 | 11 | 13 | 12 | 13 | 12 | 14 | 18 | 11 | 9 | 8 | 8 | 11 | 13 | 12 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 12 | E 12 | E 8 | E 7 | NE 6 | NE 6 | NE 6 | ENE 5 | NE 5 | ENE 5 | E 7 | E 9 | E 9 | E 9 | E 8 | ESE 4 | E 4 | E 8 | E 8 | E 8 | E 8 | E 8 | E 10 |
| kJ | 10 | 11 | 11 | 10 | 10 | 54 | 39 | 24 | 19 | 13 | 10 | 4 | 15 | 15 | 15 | 13 | 4 | 2 | 12 | 5 | 5 | 5 | 5 | 7 |
Swell 2 Height (m) Direction Period (s) | E 12 | E 12 | E 12 | E 11 | E 11 | E 7 | E 7 | ESE 7 | E 7 | E 7 | E 8 | E 11 | NE 5 | NE 4 | E 11 | S 10 | E 8 | E 8 | E 10 | E 10 | E 10 | E 10 | E 10 | E 8 |
| kJ | 11 | 11 | 11 | 10 | 3 | 10 | 10 | 5 | 4 | 4 | 5 | 9 | 1 | 1 | 2 | 2 | 12 | 12 | 2 | 2 | 2 | 8 | 8 | 1 |
Swell 3 Height (m) Direction Period (s) | — | S 12 | — | — | S 12 | E 11 | E 11 | E 11 | E 11 | E 11 | E 11 | E 11 | E 11 | E 11 | S 11 | — | S 10 | E 11 | E 11 | — | — | E 9 | E 8 | E 8 |
| kJ | — | 3 | — | — | 3 | 2 | 9 | 9 | 2 | 9 | 9 | 9 | 2 | 2 | 2 | — | 2 | 2 | 2 | — | — | 2 | 1 | 1 |
Wind waves Height (m) Direction Period (s) | NNE 4 | NE 6 | NE 6 | NE 6 | NE 6 | — | — | — | — | — | E 5 | ENE 5 | ESE 3 | ESE 4 | ESE 4 | ESE 4 | ESE 4 | — | NE 3 | NE 5 | NE 5 | NE 5 | ENE 5 | ENE 5 |
| kJ | 11 | 86 | 132 | 120 | 75 | — | — | — | — | — | 12 | 7 | 2 | 3 | 3 | 4 | 5 | — | 6 | 59 | 65 | 58 | 44 | 38 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 524 | 131 | 0 | 0 | 1205 | 1205 | 1198 | 85 | 85 | 959 | 959 | 959 | 959 | 959 | 973 | 337 | 151 | 125 | 504 | 515 | 515 | 524 | 515 | 524 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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