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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 7 am 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 2PM is: 0.7m 4s primary swell from a South-southeast direction and 0.3m 4s secondary swell from a Northeast direction (forecast issued at 07:00am May 18). The wind direction is predicted to be cross-onshore.
| 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) | 0.5ft (0.2m) | 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 8mm), mostly falling on Wed night. Warm (max 24°C on Wed afternoon, min 12°C on Wed night). Mainly fresh winds. | ||||||||||||||||||||||||
Monday 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
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 | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ESE 8 | ESE 7 | SSE 7 | SSE 4 | S 4 | ESE 7 | E 9 | 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 | S 6 | SSE 7 | |
32 | 43 | 36 | 11 | 12 | 5 | 2 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 22 | 15 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | 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 | |
High Tide | 1:18PM2.92m | 1:28AM3.37m | 2:13PM2.89m | 2:23AM3.29m | 3:10PM2.84m | |||||||||||||||||||
Low Tide | 7:04AM-0.11m | 7:13PM0.33m | 7:58AM-0.09m | 8:09PM0.38m | 8:54AM-0.01m | 9:07PM0.45m | ||||||||||||||||||
 |  | |  | | | | | | | | | | |  | | | | | |  |  |  |  | |
 | 5:16 | — | — | — | — | — | — | — | 5:16 | — | — | — | — | — | — | — | 5:15 | — | — | — | — | — | — | 5:13 |
 | — | — | — | — | 7:54 | — | — | — | — | — | — | — | 7:55 | — | — | — | — | — | — | — | 7:57 | — | — | 7:58 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 5 | — | |
Temp °C | 20 | 20 | 19 | 17 | 18 | 20 | 20 | 19 | 19 | 20 | 22 | 22 | 20 | 18 | 20 | 19 | 21 | 20 | 23 | 24 | 22 | 21 | 22 | 16 |
16 | 16 | 15 | 13 | 15 | 17 | 17 | 16 | 16 | 17 | 18 | 18 | 15 | 13 | 15 | 15 | 17 | 16 | 20 | 19 | 19 | 20 | 21 | 11 | |
Swell 1 Height (m) Direction Period (s) | SW 4 | SW 4 | NE 4 | NE 4 | SE 7 | ESE 7 | SE 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 | S 6 | SSE 7 |
 kJ | 3 | 1 | 2 | 2 | 8 | 5 | 2 | 7 | 7 | 7 | 7 | 7 | 6 | 6 | 7 | 7 | 7 | 7 | 8 | 8 | 8 | 8 | 22 | 15 |
Swell 2 Height (m) Direction Period (s) | — | — | E 14 | — | — | NE 4 | E 9 | E 13 | E 13 | E 13 | — | E 13 | E 16 | E 16 | E 16 | E 16 | E 16 | E 16 | E 12 | E 12 | E 12 | E 14 | ESE 9 | SW 4 |
| kJ | — | — | 4 | — | — | 1 | 2 | 3 | 3 | 3 | — | 3 | 5 | 5 | 5 | 5 | 5 | 5 | 3 | 3 | 3 | 4 | 8 | 2 |
Swell 3 Height (m) Direction Period (s) | — | NNE 3 | E 18 | E 14 | — | E 13 | — | — | E 13 | E 13 | E 16 | E 16 | E 16 | E 16 | E 16 | — | — | — | E 15 | E 15 | — | — | E 15 | ESE 9 |
| kJ | — | 2 | 6 | 4 | — | 3 | — | — | 3 | 3 | 5 | 5 | 5 | 5 | 5 | — | — | — | 5 | 4 | — | — | 4 | 8 |
Wind waves Height (m) Direction Period (s) | ESE 8 | ESE 7 | SSE 7 | SSE 4 | S 4 | SSW 4 | SSW 4 | SSW 4 | SW 4 | SW 4 | SSW 4 | SSW 5 | SSW 5 | SSW 5 | SSW 5 | SW 5 | SW 5 | SW 4 | SSW 4 | SSW 5 | SSW 5 | SW 5 | W 4 | NNW 4 |
| kJ | 32 | 43 | 36 | 11 | 12 | 15 | 19 | 29 | 26 | 27 | 34 | 52 | 68 | 88 | 98 | 65 | 54 | 36 | 32 | 59 | 102 | 47 | 13 | 13 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 66 | 139 | 139 | 477 | 477 | 477 | 138 | 140 | 137 | 167 | 375 | 375 | 167 | 129 | 129 | 129 | 128 | 371 | 553 | 375 | 167 | 100 | 134 | 99 |
Best forecast wave conditions in Massachusetts | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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