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Surf Forecasts:
Coastguard Beach surfForecast / Massachusetts / USA
48hr Weather and Surf, issued 6 pm Tuesday 09 Dec 2025 ESTForecast update in hr min s Forecast update imminent
Coastguard Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Coastguard Beach sea temperature is
8.5° C
(Which is normal for this time of year)How big are the waves at Coastguard Beach today?
The current surf forecast for Coastguard Beach at 12AM is: 0.1m 15s primary swell from a East direction and 0.1m 9s secondary swell from a East direction (forecast issued at 06:00pm December 09). An open ocean swell of 1.1m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (EST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Dec) | - | - |
| Afternoon (10 Dec) | 0.5ft (0.2m) | 9s |
| Evening (10 Dec) | 0.5ft (0.2m) | 9s |
Table - waves today at Coastguard Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Tuesday 09 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||||||||||
| 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 | 10 AM | 1 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 9 | 9 | 10 | 11 | 10 | 10 | 11 | 9 | 10 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 6 | 6 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 54 | 52 | 87 | 90 | 86 | 54 | 40 | 61 | 165 | 41 | 25 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | 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 | off | off | off |
High Tide / height (m) | 2:31PM 3.05 | 3:16AM 2.75 | 3:29PM 2.86 | 4:13AM 2.69 | 4:28PM 2.67 | 5:09AM 2.64 | ||||||||||||||||||
Low Tide / height (m) | 8:59PM 0.21 | 9:18AM 0.59 | 9:53PM 0.38 | 10:19AM 0.68 | 10:48PM 0.54 | 11:21AM 0.73 | ||||||||||||||||||
Tuesday 09 | Wednesday 10 | Thursday 11 | Friday 12 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:54 | - | - | - | - | - | - | - | 6:56 | - | - | - | - | - | - | - | 6:56 | - | - |
| Sunset | 4:07 | - | - | - | - | - | - | - | 4:07 | - | - | - | - | - | - | - | 4:07 | - | - | - | - | - | - | - |
 |  |  | | |  | | | | | | | |  | | | |  | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | -3 | 0 | 2 | 4 | 6 | 6 | 7 | 8 | 9 | 9 | 10 | 7 | 6 | 6 | 4 | 1 | 0 | -1 | -2 | -1 | -1 | -2 | -1 | 0 |
| Feels °C (?) | -10 | -8 | -8 | -6 | -4 | -3 | -2 | -2 | -1 | -1 | 2 | -1 | -3 | -3 | -5 | -11 | -12 | -13 | -14 | -14 | -14 | -14 | -13 | -11 |
- 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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