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Coastguard Beach Surf Forecast
/ Massachusetts (29 breaks) / Massachusetts (28 breaks) /
Coastguard Beach surfForecast / Massachusetts / USA
12 Day Weather and Surf, issued 1 pm Sunday 17 Aug 2025 EDT
Best Forecast Surf Conditions for Coastguard Beach this week:
The surf forecast for Coastguard Beach over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 22) at 11AM. The primary swell is predicted to be 1.2m and 10s period with a secondary swell of 0.8m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Coastguard Beach in the next 12 days are 2.1m 17s and forecast to arrive on Wednesday (Aug 20) at 11PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Saturday (Aug 23) at 2PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Fri 22nd Aug) | 4ft (1.2m) 10s |
| Best Surf | 11AM (Fri 22nd Aug) | 4ft (1.2m) 10s |
| Most Powerful | 11PM (Wed 20th Aug) | 7ft (2.1m) 17s |
Table - best surf conditions forecast for Coastguard Beach over the next 12 days.
Short Range Forecast Light rain (total 4mm), mostly falling on Sun night. Warm (max 25°C on Sun afternoon, min 15°C on Mon morning). Winds decreasing (strong winds from the NNE on Sun night, light winds from the SE by Tue night). | Days 3-6 Weather Summary Some drizzle, heaviest during Sat morning. Warm (max 23°C on Fri afternoon, min 18°C on Wed afternoon). Winds increasing (light winds from the S on Fri afternoon, fresh winds from the SSW by Sat morning). | ||||||||||||||||||||||
Sun 17 | Monday 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | |||||||||||||||||
| PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |||
Rating (10 max) | |||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||||
| Wave Height (m) & direction (?) | |||||||||||||||||||||||
| Period(s) (?) | 13 | 5 | 7 | 7 | 7 | 17 | 16 | 15 | 17 | 17 | 17 | 18 | 18 | 15 | 10 | 12 | 10 | 10 | 9 | 11 | 4 | ||
Wave (?)Graph  | |||||||||||||||||||||||
| Energy (?) | 8 | 94 | 299 | 194 | 119 | 124 | 194 | 290 | 800 | 807 | 1123 | 1831 | 2287 | 1140 | 441 | 349 | 177 | 60 | 37 | 25 | 39 | ||
Wind (km/h) | |||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- on | cross- on | cross- on | on | cross- on | on | cross- on | cross- on | cross- on | on | cross- on | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | ||
High Tide / height (m) | 6:46PM 2.88 | 7:36AM 2.46 | 7:52PM 2.88 | 8:42AM 2.49 | 8:55PM 2.92 | 9:43AM 2.56 | 9:54PM 2.97 | 10:37AM 2.64 | 10:48PM 3.01 | 11:25AM 2.73 | 11:37PM 3.03 | 12:09PM 2.80 | 12:23AM 3.01 | 12:51PM 2.84 | |||||||||
Low Tide / height (m) | 1:22AM 0.45 | 1:31PM 0.74 | 2:28AM 0.42 | 2:37PM 0.71 | 3:29AM 0.37 | 3:38PM 0.65 | 4:24AM 0.31 | 4:33PM 0.57 | 5:14AM 0.27 | 5:24PM 0.49 | 5:59AM 0.25 | 6:11PM 0.43 | 6:41AM 0.28 | ||||||||||
Sun 17 | Monday 18 | Tuesday 19 | Wednesday 20 | Thursday 21 | Friday 22 | Saturday 23 | |||||||||||||||||
| Sunrise | - | - | 5:50 | - | - | 5:50 | - | - | 5:52 | - | - | 5:52 | - | - | 5:54 | - | - | 5:54 | - | - | 5:56 | ||
| Sunset | 7:37 | - | - | 7:36 | - | - | 7:34 | - | - | 7:32 | - | - | 7:30 | - | - | 7:30 | - | - | 7:28 | - | - | ||
 |  | |  |  | | |  |  | | | | | | | | |  |  | | | |||
Rain (mm) | - | 4 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 2 | 3 | 2 | ||
| Temp. °C | 25 | 23 | 16 | 15 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 19 | 19 | 18 | 20 | 23 | 22 | 23 | 24 | 23 | 22 | ||
| Feels °C (?) | 23 | 21 | 8 | 9 | 14 | 14 | 15 | 15 | 16 | 16 | 15 | 14 | 14 | 13 | 19 | 22 | 19 | 20 | 21 | 20 | 21 | ||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Massachusetts
The wind is still cross-off at Coastguard Beach (light winds from the SSW at Chatham Airport 17 km from Coastguard Beach). 0.5m 3s local chop from the SSW with a 0.3m 6s windswell from the E and a 0.2m 10s swell, also from the E as well as a 0.1m 14s groundswell, also from the E. 4 swells combining to make bigger set waves.
17 km away, 2 h 22 min ago
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Coastguard Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Coastguard Beach Surf forecast
The above surf forecast table for Coastguard Beach provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Coastguard Beach can be found by selecting the local surf guide option on the grey menu. Our Coastguard Beach surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Coastguard Beach) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Coastguard Beach may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Coastguard Beach is 14 km (9 miles) from Brewster. If you plan a vacation in Massachusetts, look for hotels and other accommodation in Brewster. Brewster has rooms for a wide range of budgets as well as car hire and transport links.
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