Surf Forecasts:
How big are the waves at Green Harbor today (30 Jul):
- Afternoon surf: Afternoon surf (30 Jul, local time) - 5ft (1.6m), 6s period with NE swell.
- Evening surf: Evening surf (30 Jul, local time) - 4ft (1.2m), 6s period with NE swell.
The current surf forecast for Green Harbor at 11PM is: 1.1m 6s primary swell from a Northeast direction and 0.2m 10s secondary swell from a East-southeast direction (forecast issued at 07:00pm July 30). An open ocean swell of 0.9m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Jul) | - | - |
| Afternoon (30 Jul) | 5ft (1.6m) | 6s |
| Evening (30 Jul) | 4ft (1.2m) | 6s |
Table - waves today at Green Harbor. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Fri night. Warm (max 27°C on Sat afternoon, min 18°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Thu 30 | Friday 31 | Saturday 1 | |||||||||||||||||
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) | NE 6 | NE 6 | NE 6 | NE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | NE 6 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | ESE 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 177 | 141 | 98 | 73 | 63 | 44 | 30 | 30 | 22 | 18 | 12 | 9 | 9 | 9 | 8 | 8 | 8 | 8 | 8 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross-off | cross-off | off | cross-off | cross | cross-on | on | on | on | on | glassy | cross-off | cross-on | cross-on | cross-on |
High Tide | 00:58AM2.90m | 1:28PM2.60m | 1:36AM2.90m | 2:05PM2.68m | |||||||||||||||
Low Tide | 6:44PM0.42m | 7:17AM0.15m | 7:24PM0.36m | 7:54AM0.12m | 8:06PM0.30m | ||||||||||||||
 | |  |  | | |  | | |  | | | | | | | | | | |
 | — | — | — | — | 5:33 | — | — | — | — | — | — | — | 5:35 | — | — | — | — | — | — |
 | — | 8:04 | — | — | — | — | — | — | — | 8:01 | — | — | — | — | — | — | — | 8:00 | — |
mm | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 18 | 18 | 18 | 18 | 19 | 20 | 20 | 22 | 22 | 21 | 20 | 20 | 21 | 25 | 27 | 27 | 24 | 22 |
Feels °C | 18 | 17 | 18 | 18 | 18 | 19 | 20 | 20 | 22 | 22 | 21 | 20 | 21 | 22 | 27 | 27 | 26 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | NE 6 | NE 6 | NE 6 | NE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | NE 6 | ENE 6 | ESE 10 | ENE 6 | ESE 9 | ESE 9 | ESE 9 | ESE 9 |
| kJ | 177 | 141 | 98 | 73 | 63 | 44 | 30 | 30 | 22 | 18 | 12 | 8 | 6 | 9 | 3 | 8 | 8 | 8 | 8 |
Swell 2 Height (m) Direction Period (s) | ESE 9 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | ESE 9 | ESE 9 | ESE 10 | ESE 10 | ESE 10 | E 6 | ESE 9 | E 6 | E 5 | E 5 | E 6 |
| kJ | 9 | 9 | 9 | 9 | 9 | 10 | 9 | 9 | 8 | 8 | 9 | 9 | 9 | 3 | 8 | 2 | 2 | 1 | 1 |
Swell 3 Height (m) Direction Period (s) | — | — | S 8 | S 8 | SE 10 | SE 10 | SE 9 | SE 9 | S 8 | S 8 | S 8 | S 8 | ENE 5 | NE 5 | S 8 | NE 4 | NE 4 | NE 4 | — |
| kJ | — | — | 5 | 5 | 24 | 24 | 23 | 21 | 6 | 6 | 5 | 5 | 2 | 1 | 5 | 1 | 1 | 1 | — |
Wind waves Height (m) Direction Period (s) | — | — | NNE 6 | — | — | — | — | — | — | — | — | — | — | — | — | SSW 4 | — | S 3 | S 3 |
| kJ | — | — | 53 | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | 2 | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 55 | 49 | 0 | 1 | 9 | 15 | 81 | 102 | 52 | 85 | 54 | 54 | 54 | 54 | 102 | 124 | 515 | 515 | 515 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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