
Surf Forecasts:
How big are the waves at Plum Island today (19 Sep):
- Morning surf: Morning surf (19 Sep, local time) - 3.5ft (1.1m), 5s period with NE swell.
- Afternoon surf: Afternoon surf (19 Sep, local time) - 2.5ft (0.8m), 5s period with NE swell.
- Evening surf: Evening surf (19 Sep, local time) - 1.5ft (0.4m), 8s period with ESE swell.
The current surf forecast for Plum Island at 8AM is: 1.1m 5s primary swell from a Northeast direction and 0.4m 8s secondary swell from a East-southeast direction, 0.2m 12s secondary swell from a East-southeast direction (forecast issued at 01:00am September 19). The wind direction is predicted to be cross-shore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Sep) | 3.5ft (1.1m) | 5s |
| Afternoon (19 Sep) | 2.5ft (0.8m) | 5s |
| Evening (19 Sep) | 1.5ft (0.4m) | 8s |
Table - waves today at Plum Island. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 20mm), heaviest during Sun night. Very mild (max 16°C on Mon afternoon, min 12°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||||||
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) | NNE 4 | NE 5 | NE 5 | NE 5 | NE 6 | NE 5 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SE 8 | ESE 11 | ESE 11 | SE 11 | SE 11 | ESE 8 | ESE 8 | ESE 8 | NE 4 | NE 4 | ENE 4 | ENE 5 | SE 9 | SE 9 |
Wave Graph | ||||||||||||||||||||||||
31 | 111 | 69 | 52 | 44 | 29 | 23 | 23 | 23 | 23 | 16 | 23 | 22 | 29 | 29 | 28 | 14 | 27 | 34 | 37 | 35 | 24 | 22 | 29 | |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-on | on | on | cross-on | cross | cross | cross-on | cross-on | on | cross-on | cross-on |
High Tide | 6:18AM1.92m | 6:35PM2.19m | 7:19AM1.91m | 7:35PM2.21m | 8:18AM1.96m | 8:32PM2.26m | ||||||||||||||||||
Low Tide | 1:01AM0.36m | 1:15PM0.61m | 1:59AM0.40m | 2:14PM0.62m | 2:55AM0.39m | 3:08PM0.58m | ||||||||||||||||||
— | 6:26 | — | — | — | — | — | — | — | 6:26 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | |
— | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:43 | — | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 3 | 5 | 6 | 2 | — | — | — | — | — | — |
Temp °C | 15 | 13 | 12 | 13 | 14 | 14 | 14 | 14 | 13 | 13 | 12 | 15 | 15 | 12 | 13 | 14 | 12 | 12 | 12 | 14 | 15 | 16 | 16 | 15 |
Feels °C | 11 | 8 | 7 | 9 | 11 | 10 | 10 | 11 | 10 | 11 | 10 | 11 | 13 | 9 | 11 | 13 | 7 | 8 | 8 | 10 | 12 | 14 | 15 | 12 |
Swell 1 Height (m) Direction Period (s) | ESE 8 | ESE 8 | ESE 8 | ESE 8 | NE 6 | NE 5 | NE 5 | ESE 8 | ESE 8 | ESE 8 | SE 8 | ESE 11 | ESE 11 | SE 11 | SE 11 | ESE 8 | SE 4 | ESE 8 | ESE 8 | SE 10 | ESE 8 | SE 9 | E 5 | SE 9 |
24 | 23 | 24 | 25 | 44 | 29 | 12 | 23 | 23 | 23 | 16 | 23 | 22 | 29 | 29 | 28 | 7 | 27 | 13 | 15 | 11 | 23 | 22 | 29 | |
Swell 2 Height (m) Direction Period (s) | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 8 | ESE 8 | ESE 8 | NE 5 | NE 5 | ESE 11 | ESE 11 | SE 7 | ESE 7 | ESE 7 | ESE 8 | SE 6 | ESE 8 | SE 4 | SE 10 | ESE 8 | SE 10 | ESE 8 | SE 9 | ESE 5 |
13 | 13 | 13 | 13 | 24 | 23 | 23 | 7 | 4 | 12 | 11 | 12 | 5 | 5 | 13 | 2 | 14 | 2 | 17 | 12 | 15 | 6 | 22 | 3 | |
Swell 3 Height (m) Direction Period (s) | E 11 | E 11 | E 12 | — | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ENE 5 | NE 5 | SE 8 | SE 8 | E 9 | ESE 7 | SE 6 | ESE 10 | ESE 10 | — | — | — | — | E 8 | E 8 |
10 | 10 | 3 | — | 13 | 12 | 12 | 12 | 12 | 2 | 1 | 3 | 3 | 6 | 5 | 2 | 11 | 11 | — | — | — | — | 4 | 5 | |
Wind waves Height (m) Direction Period (s) | NNE 4 | NE 5 | NE 5 | NE 5 | — | — | SE 2 | SE 3 | SE 3 | SE 3 | SE 3 | SE 3 | SSE 3 | SSE 4 | SE 4 | SE 4 | — | NE 3 | NE 4 | NE 4 | ENE 4 | ENE 5 | — | E 4 |
31 | 111 | 69 | 52 | — | — | 1 | 2 | 2 | 2 | 1 | 4 | 8 | 9 | 8 | 8 | — | 12 | 34 | 37 | 35 | 24 | — | 10 | |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 507 | 54 | 13 | 81 | 1282 | 1282 | 1276 | 4 | 4 | 926 | 926 | 926 | 926 | 926 | 1034 | 377 | 211 | 182 | 499 | 499 | 499 | 507 | 499 | 507 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)












