Surf Forecasts:
How big are the waves at Green Harbor today (20 Jun):
- Morning surf: Morning surf (20 Jun, local time) - 2ft (0.6m), 3s period with W swell.
- Afternoon surf: Afternoon surf (20 Jun, local time) - 1.5ft (0.5m), 4s period with WNW swell.
- Evening surf: Evening surf (20 Jun, local time) - 0.5ft (0.1m), 12s period with E swell.
The current surf forecast for Green Harbor at 12PM is: 0.6m 4s primary swell from a West-northwest direction and 0.1m 10s secondary swell from a Southeast direction, 0.1m 13s secondary swell from a East direction (forecast issued at 07:00am June 20). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Jun) | 2ft (0.6m) | 3s |
| Afternoon (20 Jun) | 1.5ft (0.5m) | 4s |
| Evening (20 Jun) | 0.5ft (0.1m) | 12s |
Table - waves today at Green Harbor. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 37mm), heaviest during Mon night. Warm (max 24°C on Sun afternoon, min 15°C on Sat night). Winds decreasing (fresh winds from the W on Sat morning, calm by Sun afternoon). | ||||||||||||||||||||||||
Saturday 20 | Sunday 21 | Monday 22 | Tue 23 | |||||||||||||||||||||
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 | 2 AM | |
Swell Height Map |  |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | W 3 | W 3 | WNW 4 | WNW 4 | E 13 | E 12 | E 12 | E 12 | SE 10 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 12 | E 11 | E 11 | E 11 | E 11 | E 11 | E 11 | E 11 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 8 | 8 | 10 | 7 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 2 | 2 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross | cross-off | on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | off | cross | glassy | cross | cross-on | glassy | glassy | on | cross-off | cross-off | cross-off | off |
High Tide | 4:00AM3.21m | 4:39PM2.96m | 4:59AM3.03m | 5:36PM2.95m | 5:59AM2.85m | 6:33PM2.93m | ||||||||||||||||||
Low Tide | 10:19AM-0.14m | 10:43PM0.13m | 11:14AM-0.01m | 11:44PM0.19m | 12:09PM0.14m | 00:45AM0.24m | ||||||||||||||||||
 |  |  |  | |  |  | |  | | | | | | | | | | |  | |  |  |  | |
 | 5:05 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — | 5:07 |
 | — | — | — | — | — | 8:21 | — | — | — | — | — | — | — | 8:21 | — | — | — | — | — | — | — | 8:22 | — | 8:22 |
mm | — | — | — | — | — | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 4 | 11 | 8 | 5 |
Temp °C | 17 | 18 | 20 | 23 | 22 | 18 | 18 | 16 | 15 | 17 | 23 | 24 | 21 | 20 | 21 | 19 | 19 | 19 | 22 | 18 | 15 | 15 | 16 | 16 |
Feels °C | 11 | 12 | 15 | 19 | 21 | 18 | 17 | 14 | 13 | 14 | 21 | 23 | 19 | 19 | 20 | 18 | 18 | 19 | 22 | 17 | 14 | 13 | 16 | 17 |
Swell 1 Height (m) Direction Period (s) | SE 9 | SE 10 | SE 10 | SE 10 | SE 10 | SE 10 | NNW 4 | N 4 | SE 10 | SE 10 | SE 10 | SE 10 | SE 8 | — | SE 5 | E 12 | SE 7 | SE 7 | E 11 | E 11 | — | S 6 | E 11 | ESE 3 |
| kJ | 3 | 4 | 4 | 4 | 4 | 4 | 3 | 1 | 4 | 4 | 4 | 4 | 3 | — | 1 | 3 | 2 | 2 | 2 | 2 | — | 1 | 2 | 2 |
Swell 2 Height (m) Direction Period (s) | SE 5 | E 13 | E 13 | E 13 | E 13 | E 12 | SE 10 | SE 10 | — | — | E 12 | E 12 | E 12 | — | E 12 | E 7 | E 12 | E 11 | S 7 | S 6 | E 11 | E 11 | — | SSE 5 |
| kJ | 1 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | — | — | 3 | 3 | 3 | — | 3 | 1 | 3 | 3 | 1 | 1 | 2 | 2 | — | 2 |
Swell 3 Height (m) Direction Period (s) | E 13 | E 5 | E 6 | SE 10 | SW 8 | SW 7 | E 12 | E 12 | — | E 12 | S 7 | — | — | E 12 | — | — | S 7 | S 7 | S 6 | — | — | S 6 | — | E 11 |
| kJ | 3 | 1 | 1 | 4 | 2 | 2 | 3 | 3 | — | 3 | 4 | — | — | 3 | — | — | 1 | 1 | 1 | — | — | 1 | — | 2 |
Wind waves Height (m) Direction Period (s) | W 3 | W 3 | WNW 4 | WNW 4 | NW 4 | NW 4 | — | — | — | — | — | SSW 4 | — | — | — | — | — | — | — | — | — | — | ESE 3 | — |
| kJ | 8 | 8 | 10 | 7 | 2 | 3 | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | 4 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 92 | 381 | 395 | 99 | 99 | 77 | 54 | 57 | 72 | 102 | 102 | 359 | 515 | 515 | 77 | 127 | 174 | 174 | 3518 | 2656 | 1926 | 333 | 316 | 124 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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