Surf Forecasts:
How big are the waves at Plum Island today (18 Sep):
- Morning surf: Morning surf (18 Sep, local time) - 1.5ft (0.5m), 7s period with E swell.
- Afternoon surf: Afternoon surf (18 Sep, local time) - 1.5ft (0.4m), 7s period with ESE swell.
- Evening surf: Evening surf (18 Sep, local time) - 1.5ft (0.4m), 7s period with ESE swell.
The current surf forecast for Plum Island at 6PM is: 0.4m 7s primary swell from a East-southeast direction and 0.2m 12s secondary swell from a East-southeast direction (forecast issued at 01:00pm September 18). The wind direction is predicted to be cross-offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | 1.5ft (0.5m) | 7s |
| Afternoon (18 Sep) | 1.5ft (0.4m) | 7s |
| Evening (18 Sep) | 1.5ft (0.4m) | 7s |
Table - waves today at Plum Island. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 12mm), heaviest on Sun night. Warm (max 25°C on Fri afternoon, min 11°C on Sat morning). Wind will be generally light. | |||||||||||||||||||||
Fri 18 | Saturday 19 | Sunday 20 | |||||||||||||||||||
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 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | NE 5 | NE 6 | NE 6 | NE 6 | NE 6 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | SE 8 | SE 8 | ESE 11 | ESE 11 | SE 11 | SE 11 | ESE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 27 | 15 | 18 | 18 | 19 | 94 | 169 | 111 | 72 | 46 | 23 | 23 | 23 | 23 | 15 | 16 | 23 | 22 | 29 | 29 | 28 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross-off | cross-off | cross | cross | cross | cross-on | on | cross-on | cross-on | cross-off | cross-off | cross-off | glassy | cross | cross | cross | cross-on | on |
High Tide | 5:38PM2.23m | 6:18AM1.92m | 6:35PM2.19m | 7:19AM1.91m | 7:35PM2.21m | ||||||||||||||||
Low Tide | 12:17PM0.55m | 1:01AM0.36m | 1:15PM0.61m | 1:59AM0.40m | 2:14PM0.62m | ||||||||||||||||
 | | |  |  | | | | | |  | | | | | |  | |  |  | | |
 | — | — | — | — | — | — | 6:26 | — | — | — | — | — | — | — | 6:26 | — | — | — | — | — | — |
 | — | — | 6:47 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 3 |
Temp °C | 23 | 23 | 25 | 20 | 16 | 14 | 12 | 11 | 12 | 13 | 14 | 13 | 14 | 13 | 12 | 12 | 15 | 14 | 13 | 11 | 11 |
Feels °C | 21 | 23 | 22 | 15 | 13 | 9 | 7 | 6 | 8 | 9 | 10 | 9 | 11 | 11 | 10 | 10 | 11 | 11 | 11 | 9 | 10 |
Swell 1 Height (m) Direction Period (s) | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 7 | ESE 8 | ESE 12 | ESE 12 | ESE 8 | NE 6 | NE 5 | ENE 5 | ESE 8 | ESE 8 | SE 8 | SE 8 | ESE 7 | ESE 11 | SE 11 | SE 11 | ESE 8 |
| kJ | 27 | 15 | 18 | 18 | 19 | 25 | 13 | 13 | 25 | 46 | 22 | 15 | 23 | 23 | 15 | 16 | 10 | 22 | 29 | 29 | 28 |
Swell 2 Height (m) Direction Period (s) | SSE 4 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 12 | ESE 8 | ESE 8 | ESE 8 | NE 5 | ENE 5 | ESE 3 | ESE 11 | ESE 11 | ESE 7 | ESE 7 | ESE 8 | SE 6 |
| kJ | 3 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 24 | 23 | 23 | 7 | 2 | 2 | 11 | 23 | 5 | 5 | 13 | 2 |
Swell 3 Height (m) Direction Period (s) | ESE 12 | SSE 4 | — | SE 8 | SE 8 | E 11 | E 11 | E 12 | — | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | ESE 11 | NE 4 | NE 5 | SE 8 | E 9 | SE 6 | SE 6 |
| kJ | 14 | 1 | — | 3 | 3 | 10 | 10 | 3 | — | 13 | 12 | 12 | 12 | 12 | 12 | 1 | 1 | 3 | 6 | 2 | 2 |
Wind waves Height (m) Direction Period (s) | — | — | — | NNW 3 | N 3 | NE 5 | NE 6 | NE 6 | NE 6 | — | — | — | SE 2 | SSE 3 | — | SE 3 | SE 3 | SSE 3 | SE 4 | SE 4 | SE 4 |
| kJ | — | — | — | 3 | 5 | 94 | 169 | 111 | 72 | — | — | — | 2 | 1 | — | 1 | 2 | 7 | 6 | 4 | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 231 | 231 | 231 | 231 | 507 | 507 | 38 | 38 | 81 | 81 | 1282 | 920 | 4 | 1282 | 926 | 926 | 926 | 926 | 4 | 1276 | 377 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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