Surf Forecasts:
How big are the waves at Plum Island today (21 Oct):
- Morning surf: Morning surf (21 Oct, local time) - 6ft (1.8m), 8s period with E swell.
- Afternoon surf: Afternoon surf (21 Oct, local time) - 7.5ft (2.3m), 9s period with E swell.
- Evening surf: Evening surf (21 Oct, local time) - 8ft (2.4m), 9s period with E swell.
The current surf forecast for Plum Island at 2AM is: 2.3m 9s primary swell from a East direction (forecast issued at 07:00pm October 20). The wind direction is predicted to be cross-onshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Oct) | 6ft (1.8m) | 8s |
| Afternoon (21 Oct) | 7.5ft (2.3m) | 9s |
| Evening (21 Oct) | 8ft (2.4m) | 9s |
Table - waves today at Plum Island. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 15°C on Thu afternoon, min 5°C on Fri morning). Mainly fresh winds. | |||||||||||||||||||
Tue 20 | Wednesday 21 | Thursday 22 | |||||||||||||||||
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) | E 10 | E 9 | E 9 | E 9 | ENE 9 | E 8 | E 8 | E 8 | E 9 | E 9 | E 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 9 | E 9 | E 9 | E 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 893 | 577 | 665 | 846 | 892 | 472 | 512 | 762 | 805 | 915 | 958 | 790 | 705 | 612 | 650 | 686 | 550 | 435 | 382 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross-on | cross | cross |
High Tide | 7:45PM2.25m | 8:22AM2.16m | 8:39PM2.30m | 9:09AM2.29m | 9:29PM2.37m | ||||||||||||||
Low Tide | 2:28PM0.60m | 2:59AM0.39m | 3:18PM0.48m | 3:43AM0.31m | 4:04PM0.33m | ||||||||||||||
 |  | | | |  | |  | |  | | | | | | | |  | | |
 | — | — | — | — | 7:03 | — | — | — | — | — | — | — | 7:03 | — | — | — | — | — | — |
 | 5:52 | — | — | — | — | — | — | — | 5:52 | — | — | — | — | — | — | — | 5:50 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 14 | 11 | 9 | 7 | 6 | 7 | 8 | 8 | 8 | 9 | 8 | 8 | 8 | 10 | 14 | 15 | 13 | 11 |
Feels °C | 11 | 9 | 5 | 2 | 0 | -1 | 0 | 2 | 2 | 3 | 3 | 2 | 2 | 2 | 3 | 8 | 10 | 6 | 4 |
Swell 1 Height (m) Direction Period (s) | ESE 10 | E 9 | ESE 9 | — | — | E 8 | E 8 | — | — | — | ESE 9 | ESE 9 | ESE 9 | ESE 9 | E 9 | E 9 | E 9 | E 9 | E 8 |
| kJ | 696 | 577 | 466 | — | — | 472 | 512 | — | — | — | 792 | 790 | 705 | 612 | 650 | 686 | 550 | 435 | 382 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSE 10 | SSE 10 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 36 | 34 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | E 10 | — | E 9 | E 9 | ENE 9 | NE 6 | NE 6 | E 8 | E 9 | E 9 | E 9 | NE 5 | NNE 5 | NNE 5 | NNE 5 | NNE 5 | NNE 5 | NNE 4 | NNE 6 |
| kJ | 893 | — | 665 | 846 | 892 | 156 | 114 | 762 | 805 | 915 | 958 | 57 | 59 | 83 | 55 | 51 | 70 | 24 | 163 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 25 | 187 | 512 | 512 | 512 | 512 | 1050 | 1037 | 1037 | 1037 | 926 | 633 | 926 | 512 | 512 | 307 | 151 | 146 | 170 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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