Surf Forecasts:
Coastguard Beach surf forecast from 15 Aug 2026:
- Best quality surf: Monday 17 Aug, 11PM (local time) - 4ft (1.2m), 6s period, S swell with cross-offshore winds.
- Most powerful swell: Monday 17 Aug, 11PM (local time) - 4ft (1.2m), 6s period, S swell with 101 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 11PM (local time) - 4ft (1.2m), 6s period with S swell.
Best Forecast Surf Conditions for Coastguard Beach this week:
The surf forecast for Coastguard Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 17) at 11PM. The primary swell is predicted to be 1.2m and 6s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Coastguard Beach in the next 16 days are 1.2m 6s and forecast to arrive on Monday (Aug 17) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Monday (Aug 17) at 5AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Mon 17th Aug) | 4ft (1.2m) 6s |
| Best Surf | 11PM (Mon 17th Aug) | 4ft (1.2m) 6s |
| Most Powerful | 11PM (Mon 17th Aug) | 4ft (1.2m) 6s |
Table - best surf conditions forecast for Coastguard Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's be straight with you – this is a tough one for the coast. The forecast looks pretty flat and uninviting for the next couple of weeks. We're going to be staring at a long stretch of minimal swell, cross-shore winds, and generally poor conditions. There's no standout session to get excited about, so if you're itching for a paddle, you're going to have to keep your expectations super low.
The first hint of any surfable energy comes in on Monday, 17th August. A weak swell from the south pushes in, but it's accompanied by a fresh cross-shore breeze. The swell is a pathetic 4ft with a period of only 5 seconds, which is just messy, short-period wind chop. The combined energy is a weak 64 – it's barely a ripple. This isn't one for the board, more just a sign of life.
Monday, 17th August is probably the only slightly interesting day, but it's still not good. You'll see that same weak south swell dropping to 4ft in the afternoon and the wind is still a moderate cross-shore from the south. The wave comment is "poor surf conditions" across the board. The water temperature is around 72°F, which is a touch warmer than normal for this time of year, about 3°F above average.
The rest of the week and into the next is a real write-off. From Tuesday the 18th right through to the end of the period, we're looking at tiny waves, mostly under 2ft. The wind is all over the shop – cross, cross-on, and even some onshore days. The combined energy rarely gets above 50, which is basically nothing. There's a brief moment on Friday, 28th August morning where the wind goes glassy, but the swell is only 1ft – it's a dead flat, glassy dud.
The swell direction is never quite right for this exposed beach break, and the short periods mean the waves will be weak and crumbly. For a beginner spot like Coastguard Beach, even the 4ft day on Monday could be a little challenging for a total newbie, but the lack of power makes it manageable. Honestly, the whole setup looks more interesting for a kite surfer than a paddle surfer, if there's any wind at all.
So, the bottom line: no real highlights. The next 16 days are a blank run of poor surf. It's a quiet period, and forecasts can always change, but right now, I'd keep the board in the car and find something else to do.
Rusty.
Short Range ForecastModerate rain (total 14mm), heaviest on Mon afternoon. Warm (max 23°C on Sun afternoon, min 20°C on Sat morning). Winds increasing (calm on Sun morning, fresh winds from the S by Mon morning). | Days 4-6 Weather SummaryLight rain (total 8mm), mostly falling on Thu afternoon. Warm (max 25°C on Wed afternoon, min 19°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | E 12 | E 9 | E 9 | E 9 | E 11 | E 8 | S 5 | S 5 | SSE 7 | SE 7 | SE 7 | SE 7 | ESE 6 | ESE 6 | ESE 7 | S 4 | ESE 9 | SE 7 | NE 4 | NE 4 | E 5 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3 | 2 | 2 | 1 | 2 | 1 | 57 | 80 | 51 | 44 | 33 | 22 | 16 | 15 | 11 | 8 | 8 | 11 | 24 | 20 | 11 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | on | cross-off | cross | cross | cross-off | cross | cross | cross-off | cross | cross | glassy | cross | cross-off | cross-off | cross-off | cross | cross | cross-on | cross-on | cross-on |
High Tide | 2:00PM3.04m | 2:21AM3.01m | 2:46PM2.99m | 3:10AM2.83m | 3:32PM2.89m | 4:00AM2.64m | 4:19PM2.78m | 4:52AM2.46m | 5:08PM2.66m | 5:47AM2.31m | 6:01PM2.56m | 6:46AM2.21m | 6:57PM2.51m | ||||||||
Low Tide | 8:10PM0.24m | 8:33AM0.26m | 9:00PM0.32m | 9:18AM0.43m | 9:50PM0.44m | 10:04AM0.62m | 10:42PM0.56m | 10:51AM0.79m | 11:37PM0.68m | 11:42AM0.93m | 00:34AM0.76m | 12:38PM1.01m | 1:34AM0.80m | ||||||||
 | |  |  | |  |  |  |  | | | | | | |  |  |  | | | | |
 | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — |
 | — | 7:39 | — | — | 7:38 | — | — | 7:37 | — | — | 7:36 | — | — | 7:34 | — | — | 7:32 | — | — | 7:30 | — |
mm | — | — | — | — | — | — | — | 9 | 5 | — | — | — | — | — | — | 2 | 5 | 1 | — | — | — |
Temp °C | 21 | 21 | 21 | 22 | 23 | 23 | 23 | 22 | 23 | 20 | 20 | 21 | 24 | 25 | 23 | 22 | 20 | 20 | 20 | 20 | 20 |
Feels °C | 19 | 20 | 20 | 22 | 20 | 20 | 19 | 22 | 24 | 19 | 19 | 22 | 24 | 24 | 22 | 23 | 21 | 22 | 19 | 18 | 20 |
Swell 1 Height (m) Direction Period (s) | — | NNE 4 | NNE 4 | S 6 | E 8 | E 8 | ESE 8 | E 9 | SSE 7 | SE 7 | SE 7 | SE 7 | ESE 6 | ESE 6 | ESE 6 | S 4 | ESE 6 | SE 7 | ESE 6 | E 8 | NNE 4 |
| kJ | — | 3 | 1 | 1 | 1 | 1 | 7 | 2 | 51 | 44 | 33 | 22 | 16 | 15 | 7 | 8 | 7 | 11 | 4 | 5 | 3 |
Swell 2 Height (m) Direction Period (s) | E 9 | S 6 | SE 6 | E 9 | E 11 | — | — | — | — | — | — | NNE 4 | — | — | ESE 7 | ESE 6 | SSW 4 | E 9 | E 8 | E 14 | E 8 |
| kJ | 2 | 1 | 1 | 1 | 2 | — | — | — | — | — | — | 3 | — | — | 11 | 7 | 3 | 6 | 6 | 4 | 10 |
Swell 3 Height (m) Direction Period (s) | E 12 | E 9 | E 9 | — | — | — | — | — | — | — | — | SE 8 | — | — | ESE 9 | E 9 | ESE 9 | E 15 | E 15 | — | E 14 |
| kJ | 3 | 2 | 2 | — | — | — | — | — | — | — | — | 11 | — | — | 8 | 2 | 8 | 4 | 4 | — | 4 |
Wind waves Height (m) Direction Period (s) | NNE 4 | — | — | — | S 4 | S 4 | S 5 | S 5 | — | N 4 | N 4 | — | SSW 3 | SSW 3 | SSW 4 | — | N 4 | N 4 | NE 4 | NE 4 | E 5 |
| kJ | 3 | — | — | — | 13 | 21 | 57 | 80 | — | 12 | 9 | — | 1 | 8 | 11 | — | 1 | 6 | 24 | 20 | 11 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1808 | 3485 | 1729 | 1686 | 1820 | 1643 | 129 | 129 | 99 | 99 | 161 | 10 | 136 | 611 | 139 | 139 | 929 | 205 | 308 | 633 | 129 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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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 16 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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