Surf Forecasts:
How big are the waves at Plum Island today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 1.5ft (0.4m), 8s period with SE swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 1.5ft (0.4m), 11s period with SE swell.
- Evening surf: Evening surf (20 Sep, local time) - 3.5ft (1.1m), 5s period with SSE swell.
The current surf forecast for Plum Island at 1PM is: 0.3m 11s primary swell from a East-southeast direction and 0.2m 7s secondary swell from a East-southeast direction, 0.6m 3s secondary swell from a South-southeast direction (forecast issued at 07:00am September 20). The wind direction is predicted to be cross-shore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 1.5ft (0.4m) | 8s |
| Afternoon (20 Sep) | 1.5ft (0.4m) | 11s |
| Evening (20 Sep) | 3.5ft (1.1m) | 5s |
Table - waves today at Plum Island. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 14mm), heaviest on Sun night. Very mild (max 16°C on Mon afternoon, min 11°C on Tue morning). Wind will be generally light. | |||||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||||||||||
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) | ESE 8 | SE 8 | ESE 11 | ESE 11 | SE 11 | SSE 5 | SSE 5 | SE 5 | SE 5 | NNE 4 | NNE 5 | NE 5 | NE 5 | ENE 5 | E 5 | ENE 5 | ENE 5 | ENE 6 | ENE 6 | ENE 7 | ENE 6 | ENE 6 | E 6 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 23 | 16 | 23 | 22 | 45 | 50 | 28 | 17 | 14 | 38 | 77 | 60 | 38 | 20 | 21 | 63 | 109 | 148 | 195 | 214 | 161 | 139 | 193 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross-on | cross | cross-off | cross | cross | cross | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on |
High Tide | 7:19AM1.91m | 7:35PM2.21m | 8:18AM1.96m | 8:32PM2.26m | 9:12AM2.06m | 9:25PM2.34m | |||||||||||||||||
Low Tide | 2:14PM0.62m | 2:55AM0.39m | 3:08PM0.58m | 3:45AM0.34m | 3:57PM0.49m | ||||||||||||||||||
 |  | |  | |  | | | |  | |  | | |  |  | | | | | | | | |
 | 6:26 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — |
 | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:40 | — | — |
mm | — | — | — | 1 | 3 | 5 | 4 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 14 | 15 | 14 | 14 | 15 | 14 | 12 | 12 | 12 | 14 | 16 | 16 | 16 | 14 | 13 | 12 | 11 | 11 | 11 | 11 | 12 | 13 |
Feels °C | 11 | 12 | 12 | 11 | 11 | 13 | 13 | 8 | 9 | 8 | 10 | 13 | 13 | 12 | 9 | 9 | 7 | 5 | 5 | 6 | 6 | 8 | 8 |
Swell 1 Height (m) Direction Period (s) | ESE 8 | SE 8 | SE 7 | ESE 11 | SE 11 | SE 11 | SSE 5 | SE 5 | SE 5 | SE 5 | SE 10 | ESE 8 | SE 10 | ENE 5 | SE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 7 | E 14 |
| kJ | 23 | 16 | 14 | 22 | 29 | 29 | 27 | 17 | 14 | 8 | 16 | 12 | 14 | 20 | 14 | 21 | 17 | 21 | 11 | 11 | 23 | 27 | 4 |
Swell 2 Height (m) Direction Period (s) | ESE 11 | ESE 11 | ESE 11 | ESE 7 | E 9 | E 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SE 10 | ESE 8 | SE 9 | ESE 8 | E 16 | E 15 | E 15 | E 14 | E 14 | E 14 | E 14 | — |
| kJ | 12 | 11 | 23 | 5 | 6 | 6 | 28 | 14 | 14 | 13 | 12 | 15 | 6 | 14 | 6 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | — |
Swell 3 Height (m) Direction Period (s) | ENE 5 | NE 5 | SE 8 | SE 8 | — | E 7 | E 7 | ESE 10 | ESE 10 | ESE 10 | SE 5 | — | — | ESE 8 | E 8 | — | — | — | — | — | — | — | — |
| kJ | 2 | 1 | 3 | 3 | — | 1 | 1 | 11 | 11 | 10 | 4 | — | — | 6 | 4 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 2 | SSE 3 | SSE 3 | SSE 4 | SSE 4 | SSE 5 | — | — | N 3 | NNE 4 | NNE 5 | NE 5 | NE 5 | — | E 5 | ENE 5 | ENE 5 | ENE 6 | ENE 6 | ENE 7 | ENE 6 | ENE 6 | E 6 |
| kJ | 1 | 3 | 6 | 11 | 45 | 50 | — | — | 11 | 38 | 77 | 60 | 38 | — | 21 | 63 | 109 | 148 | 195 | 214 | 161 | 139 | 193 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 926 | 926 | 4 | 926 | 1891 | 381 | 9 | 113 | 319 | 54 | 507 | 507 | 507 | 509 | 626 | 626 | 509 | 499 | 499 | 633 | 3450 | 2712 | 941 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
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