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Coastguard Beach Surf Forecast
/ Massachusetts (29 breaks) / Massachusetts (28 breaks) /
Surf Forecasts:
Coastguard Beach surfForecast / Massachusetts / USA
48hr Weather and Surf, issued 1 pm Monday 18 May 2026 EDTForecast 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
10.4° C
(Which is slightly warmer than usual)How big are the waves at Coastguard Beach today?
The current surf forecast for Coastguard Beach at 9PM is: 0.3m 7s primary swell from a Southeast direction and 0.1m 4s secondary swell from a Northeast direction (forecast issued at 01:00pm May 18). An open ocean swell of 0.7m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (EDT) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 May) | 2ft (0.6m) | 7s |
| Afternoon (18 May) | 2.5ft (0.7m) | 4s |
| Evening (18 May) | 1ft (0.3m) | 7s |
Table - waves today at Coastguard Beach. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 5mm), mostly falling on Wed night. Warm (max 26°C on Wed morning, min 8°C on Thu morning). Winds decreasing (fresh winds from the SW on Tue afternoon, light winds from the WSW by Wed night). | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
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 | 2 AM | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSE 7 | SE 4 | SSE 4 | SE 7 | ESE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SSE 7 | SSE 7 | S 7 | N 5 | |
36 | 12 | 15 | 8 | 5 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 15 | 15 | 14 | 45 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross | 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 | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross | |
High Tide | 1:18PM2.92m | 1:28AM3.37m | 2:13PM2.89m | 2:23AM3.29m | 3:10PM2.84m | 3:21AM3.17m | ||||||||||||||||||
Low Tide | 7:13PM0.33m | 7:58AM-0.09m | 8:09PM0.38m | 8:54AM-0.01m | 9:07PM0.45m | |||||||||||||||||||
 |  | |  | | | | | | | |  | |  | | | | |  | |  | | | | |
 | — | — | — | — | — | — | 5:16 | — | — | — | — | — | — | — | 5:15 | — | — | — | — | — | — | — | 5:13 | — |
 | — | — | 7:54 | — | — | — | — | — | — | — | 7:55 | — | — | — | — | — | — | — | 7:57 | — | — | — | — | 7:58 |
— | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | 1 | 2 | 1 | — | — | — | |
Temp °C | 18 | 17 | 17 | 20 | 18 | 19 | 19 | 20 | 21 | 21 | 19 | 17 | 18 | 19 | 20 | 20 | 26 | 24 | 24 | 22 | 21 | 16 | 13 | 10 |
13 | 12 | 14 | 17 | 15 | 15 | 15 | 16 | 17 | 17 | 14 | 14 | 13 | 15 | 17 | 17 | 24 | 20 | 22 | 21 | 17 | 11 | 6 | 5 | |
Swell 1 Height (m) Direction Period (s) | NE 3 | NE 4 | SE 7 | SE 7 | ESE 7 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 8 | ESE 9 | ESE 9 | ESE 9 | ESE 9 | SSE 7 | SSE 7 | S 7 | S 7 |
 kJ | 2 | 2 | 9 | 8 | 5 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 15 | 15 | 14 | 8 |
Swell 2 Height (m) Direction Period (s) | NE 3 | — | — | NE 4 | E 9 | E 13 | — | E 13 | E 13 | E 13 | E 16 | E 16 | E 16 | E 16 | E 16 | — | E 12 | E 12 | — | E 14 | ESE 9 | ESE 9 | ESE 9 | ESE 9 |
| kJ | 3 | — | — | 1 | 2 | 3 | — | 3 | 3 | 3 | 5 | 5 | 5 | 5 | 5 | — | 3 | 3 | — | 4 | 8 | 8 | 7 | 7 |
Swell 3 Height (m) Direction Period (s) | E 14 | E 18 | — | — | NE 4 | — | E 13 | E 13 | E 13 | E 16 | — | — | — | E 16 | — | — | E 15 | E 15 | E 15 | — | NW 4 | E 15 | E 15 | E 15 |
| kJ | 4 | 6 | — | — | 1 | — | 3 | 3 | 3 | 5 | — | — | — | 5 | — | — | 4 | 4 | 4 | — | 1 | 4 | 4 | 4 |
Wind waves Height (m) Direction Period (s) | SSE 7 | SE 4 | SSE 4 | S 4 | SSW 4 | SSW 4 | SSW 4 | SW 4 | SSW 5 | SSW 5 | SSW 5 | SSW 5 | SSW 5 | SW 5 | SW 4 | SW 4 | SSW 4 | SSW 5 | SSW 5 | SSW 5 | SW 4 | W 4 | N 4 | N 5 |
| kJ | 36 | 12 | 15 | 13 | 16 | 26 | 40 | 40 | 52 | 64 | 92 | 80 | 71 | 65 | 44 | 35 | 31 | 56 | 61 | 37 | 7 | 10 | 50 | 45 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 139 | 477 | 477 | 161 | 137 | 137 | 137 | 142 | 372 | 137 | 137 | 102 | 129 | 129 | 128 | 375 | 375 | 161 | 167 | 120 | 138 | 157 | 119 | 143 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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