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Surf Forecasts:
Plum Island surfForecast / Massachusetts / USA
48hr Weather and Surf, issued 12 pm Tuesday 09 Dec 2025 ESTForecast update in hr min s Forecast update imminent
Plum Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Plum Island sea temperature is
8.2° C
(Which is normal for this time of year)How big are the waves at Plum Island today?
The current surf forecast for Plum Island at 4PM is: 0.3m 9s primary swell from a East-southeast direction (forecast issued at 12:00pm December 09). The wind direction is predicted to be cross-offshore.
| Time (EST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 Dec) | 1ft (0.3m) | 9s |
| Afternoon (09 Dec) | 1ft (0.3m) | 9s |
| Evening (09 Dec) | 0.5ft (0.2m) | 9s |
Table - waves today at Plum Island. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 09 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||||||||||
| 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 8 | 9 | 9 | 8 | 9 | 8 | 15 | 14 | 14 | 6 | 15 | 6 | 15 | 15 | 5 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 14 | 14 | 15 | 7 | 6 | 6 | 6 | 4 | 4 | 4 | 272 | 4 | 143 | 4 | 4 | 20 | 12 | 84 | 120 | 49 | 54 | 37 | 39 | 28 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | off | off | off | off | off | off | off |
High Tide / height (m) | 2:47PM 2.73 | 3:31AM 2.33 | 3:45PM 2.55 | 4:31AM 2.28 | 4:47PM 2.37 | 5:32AM 2.24 | ||||||||||||||||||
Low Tide / height (m) | 9:07AM 0.18 | 9:51PM -0.10 | 10:10AM 0.26 | 10:50PM 0.02 | 11:14AM 0.30 | 11:48PM 0.12 | ||||||||||||||||||
Tuesday 09 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | - | 7:01 | - | - | - | - | - | - | - | 7:03 | - | - | - | - | - | - | - |
| Sunset | - | - | 4:08 | - | - | - | - | - | - | - | 4:08 | - | - | - | - | - | - | - | 4:08 | - | - | - | - | - |
 | |  |  | | | | | | | |  | | | |  | | | | |  | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | -9 | -5 | -3 | -2 | -2 | -1 | 0 | 2 | 3 | 7 | 7 | 5 | 4 | 4 | 4 | 1 | -2 | -2 | -3 | -4 | -4 | -4 | -4 | -5 |
| Feels °C (?) | -15 | -11 | -9 | -10 | -10 | -8 | -6 | -5 | -4 | -1 | -1 | -3 | -3 | -3 | -3 | -7 | -12 | -13 | -14 | -15 | -14 | -14 | -14 | -15 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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