Surf Forecasts:
How big are the waves at Plum Island today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 2.5ft (0.8m), 4s period with NNE swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 2.5ft (0.8m), 4s period with NE swell.
- Evening surf: Evening surf (21 Sep, local time) - 1.5ft (0.4m), 9s period with SE swell.
The current surf forecast for Plum Island at 5AM is: 0.4m 8s primary swell from a East-southeast direction and 0.4m 4s secondary swell from a Southeast direction, 0.4m 3s secondary swell from a North-northeast direction (forecast issued at 01:00am September 21). The wind direction is predicted to be cross-shore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 2.5ft (0.8m) | 4s |
| Afternoon (21 Sep) | 2.5ft (0.8m) | 4s |
| Evening (21 Sep) | 1.5ft (0.4m) | 9s |
Table - waves today at Plum Island. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 16°C on Mon afternoon, min 11°C on Wed night). Winds increasing (light winds from the ESE on Mon night, fresh winds from the NE by Wed morning). | ||||||||||||||||||||||||
Monday 21 | Tuesday 22 | Wednesday 23 | ||||||||||||||||||||||
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) | SE 4 | ESE 8 | NNE 4 | NE 4 | SE 8 | ENE 5 | SE 9 | E 5 | ENE 4 | ENE 5 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | E 7 | E 6 | E 7 | E 7 | E 7 | E 8 | E 8 | ESE 9 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 14 | 27 | 17 | 20 | 21 | 35 | 22 | 26 | 38 | 86 | 119 | 151 | 183 | 153 | 95 | 65 | 168 | 157 | 248 | 337 | 461 | 594 | 682 | 708 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 8:18AM1.96m | 8:32PM2.26m | 9:12AM2.06m | 9:25PM2.34m | 9:57AM2.18m | 10:11PM2.42m | ||||||||||||||||||
Low Tide | 2:55AM0.39m | 3:08PM0.58m | 3:45AM0.34m | 3:57PM0.49m | 4:30AM0.27m | 4:42PM0.37m | ||||||||||||||||||
 | |  |  | | |  | |  | | | |  | | | | |  | | | | | | | |
 | — | 6:28 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:31 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:40 | — | — | — | — | — | — | — | 6:38 | — | — |
mm | 4 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 12 | 12 | 14 | 15 | 16 | 16 | 15 | 13 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 12 | 13 | 12 | 12 | 12 | 12 | 13 |
Feels °C | 13 | 8 | 9 | 10 | 12 | 14 | 15 | 10 | 8 | 7 | 7 | 6 | 6 | 7 | 9 | 8 | 8 | 7 | 7 | 5 | 6 | 7 | 7 | 9 |
Swell 1 Height (m) Direction Period (s) | SE 4 | SE 4 | ESE 8 | ESE 8 | SE 8 | ENE 4 | E 5 | SE 9 | SE 9 | SE 8 | SE 7 | SE 8 | SE 8 | SE 8 | SE 7 | ESE 7 | E 13 | E 13 | E 13 | E 13 | E 13 | — | — | — |
| kJ | 14 | 5 | 13 | 12 | 15 | 21 | 16 | 14 | 27 | 23 | 25 | 38 | 49 | 37 | 44 | 42 | 3 | 3 | 3 | 3 | 3 | — | — | — |
Swell 2 Height (m) Direction Period (s) | ESE 8 | ESE 8 | SE 10 | SE 10 | SE 10 | SE 9 | SE 9 | — | E 16 | E 15 | E 15 | E 14 | E 14 | E 14 | E 14 | E 14 | — | E 13 | — | — | — | — | — | — |
| kJ | 14 | 27 | 17 | 16 | 15 | 14 | 22 | — | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | — | 3 | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | ESE 10 | ESE 10 | SSE 4 | SE 4 | E 6 | ESE 8 | E 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 11 | 11 | 1 | 1 | 1 | 6 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | NNE 3 | NNE 4 | NE 4 | NE 4 | ENE 5 | — | E 5 | ENE 4 | ENE 5 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | E 7 | E 6 | E 7 | E 7 | E 7 | E 8 | E 8 | ESE 9 |
| kJ | — | 2 | 17 | 20 | 21 | 35 | — | 26 | 38 | 86 | 119 | 151 | 183 | 153 | 95 | 65 | 168 | 157 | 248 | 337 | 461 | 594 | 682 | 708 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 54 | 499 | 499 | 499 | 499 | 507 | 507 | 626 | 499 | 170 | 626 | 499 | 633 | 532 | 1037 | 941 | 2007 | 509 | 1896 | 627 | 920 | 2742 | 626 | 132 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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