Surf Forecasts:
Coastguard Beach surf forecast from 25 Aug 2026:
- Most powerful swell: Wednesday 26 Aug, 2PM (local time) - 1.5ft (0.5m), 10s period, E swell with 47 kJ wave energy.
Best Forecast Surf Conditions for Coastguard Beach this week:
The most powerful waves expected at Coastguard Beach in the next 16 days are 0.5m 10s and forecast to arrive on Wednesday (Aug 26) at 2PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Tuesday (Aug 25) at 5PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Wed 26th Aug) | 1.5ft (0.5m) 10s |
Table - best surf conditions forecast for Coastguard Beach over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s have a look at what’s coming down the line for Coastguard Beach. I gotta be straight with you – this one’s a tough stretch. The whole 16-day outlook is a bit of a desert, so don’t get your hopes up too high.
We kick off on Tuesday, August 25th, and right away you can see the problem. We’ve got a tiny 1 ft swell from the ESE with a short period of 6 seconds. The combined energy is a measly (13), which is just about as weak as it gets. The wind is offshore, WSW at 12 mph, so it’ll be clean, but with almost no wave to ride, it’s a flat, glassy lake out there. That sets the tone for most of the next week – tiny, weak swells with poor surf conditions.
We crawl through a whole lot of nothing. Wednesday and Thursday are the same story – 1 ft to 2 ft swells, periods under 10 seconds, energy readings in the 20s and 30s. The wind flips around a bit, but it’s all cross or cross-offshore. It’s clean, but there’s no juice. By Friday, August 28th, we get a little bump to 3 ft, but it’s a 4-second period from the SE, which is just windswell slop. The energy climbs to (30), but it’s a risk of thunderstorms and a cross-shore chop. Not worth paddling out for.
The weekend and the start of the next week are flatlined. Saturday and Sunday, August 29th and 30th, are back to 1 ft and 1 ft with energy barely cracking 20. The only interesting thing is a 16-second period on Monday, August 31st, but the swell height is only 0.3 ft – that’s a ghost swell. The energy is a pathetic (7). It’s pure, clean, and empty, but completely unsurfable.
Now, the first real flicker of hope comes on Tuesday, September 1st. The morning is still tiny, but the afternoon sees a 3 ft swell from the SW with a 7-second period, and the energy jumps to (88). The wind is light and cross-offshore, so it’ll be clean. The guidance says it’s "surfable waves but very ordinary conditions," which is the best we’re going to get. It’s a beginner-friendly size, but don’t expect anything special.
After that, the long-range forecast from September 2nd onward is a stagnant mess. We get a run of 0.7 ft to 1 ft swells from the ESE with periods around 10 to 12 seconds. The energy stays in the teens and twenties. The wind is a steady moderate breeze from the north or northeast, keeping it chop and cross-shore. It’s just a flat, non-event through to the end of the outlook on September 9th.
The water temp is sitting at 69°F with a 1°F anomaly, so it’s pretty average for this time of year. No complaints there.
So, what’s the verdict? There’s only one standout window, and it’s a weak one. The best on offer is the afternoon of Tuesday, September 1st. That 3 ft SW swell with clean, cross-offshore winds is your only real chance to get wet. It’s small, it’s ordinary, but it’s the only thing that’s surfable in the whole 16 days. The break is consistent, but the swell is not. It’s a beach break, and with the wind being offshore, it’ll be clean. Expect some crowds though, as it’s the only game in town.
The rest is a long, flat, and frustrating gap. For the first week, it’s basically a no-go. The second week is just as bad. This is a tough run for Coastguard Beach. I wish I had better news, but sometimes the ocean just shuts down.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Tue afternoon, min 20°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 15mm), heaviest on Fri afternoon. Warm (max 24°C on Fri night, min 18°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | |||||||||||||||
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) | ESE 6 | ESE 6 | ESE 10 | ESE 8 | E 10 | ESE 8 | ESE 9 | ESE 9 | ESE 8 | SE 4 | ESE 8 | ESE 8 | ESE 7 | SE 7 | SE 7 | SE 6 | ESE 6 | ESE 8 | E 16 | E 15 | SSE 6 |
Wave Graph | |||||||||||||||||||||
8 | 3 | 10 | 22 | 47 | 22 | 25 | 25 | 23 | 24 | 15 | 23 | 10 | 13 | 7 | 11 | 4 | 7 | 5 | 4 | 17 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | cross-off | cross | cross-off | cross-off | cross-off | cross | cross | cross | off | cross-off | on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 10:18AM2.36m | 10:23PM2.70m | 10:58AM2.47m | 11:06PM2.77m | 11:37AM2.59m | 11:46PM2.83m | 12:14PM2.70m | 00:26AM2.85m | 12:50PM2.79m | 1:07AM2.84m | 1:28PM2.86m | 1:48AM2.80m | 2:07PM2.90m | 2:32AM2.73m | |||||||
Low Tide | 4:10PM0.85m | 4:49AM0.56m | 4:54PM0.74m | 5:28AM0.49m | 5:36PM0.63m | 6:04AM0.44m | 6:17PM0.53m | 6:41AM0.41m | 6:57PM0.46m | 7:17AM0.42m | 7:39PM0.41m | 7:55AM0.45m | 8:23PM0.39m | ||||||||
5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | |
— | 7:24 | — | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:17 | — | — | 7:16 | — | — | 7:15 | — | |
mm | — | — | — | — | — | — | — | — | — | 2 | 9 | 4 | — | — | — | — | — | — | 1 | 2 | — |
Temp °C | 22 | 24 | 23 | 20 | 22 | 22 | 24 | 24 | 23 | 23 | 21 | 24 | 19 | 19 | 21 | 22 | 23 | 22 | 26 | 25 | 24 |
Feels °C | 19 | 22 | 21 | 19 | 21 | 21 | 23 | 22 | 21 | 23 | 21 | 24 | 17 | 19 | 20 | 21 | 20 | 19 | 26 | 25 | 26 |
Swell 1 Height (m) Direction Period (s) | ESE 6 | ESE 6 | ESE 6 | ESE 8 | E 10 | ESE 8 | ESE 9 | ESE 9 | ESE 8 | E 10 | ESE 8 | ESE 8 | SE 5 | SE 7 | SE 7 | S 6 | ESE 6 | ESE 7 | SE 8 | E 8 | SSE 6 |
8 | 3 | 3 | 22 | 47 | 22 | 25 | 25 | 23 | 2 | 12 | 23 | 6 | 13 | 7 | 3 | 4 | 5 | 2 | 1 | 17 | |
Swell 2 Height (m) Direction Period (s) | E 6 | E 6 | ESE 10 | SSW 5 | — | E 11 | — | E 11 | E 10 | NE 10 | S 6 | SSE 7 | ESE 7 | S 7 | — | SE 8 | E 8 | ESE 8 | E 16 | E 15 | E 16 |
3 | 1 | 10 | 2 | — | 9 | — | 9 | 2 | 4 | 2 | 10 | 10 | 4 | — | 3 | 1 | 7 | 5 | 4 | 5 | |
Swell 3 Height (m) Direction Period (s) | E 11 | E 11 | E 11 | E 14 | — | — | — | — | E 8 | — | E 10 | E 10 | S 7 | E 9 | E 8 | — | — | — | — | — | E 16 |
2 | 2 | 2 | 4 | — | — | — | — | 1 | — | 2 | 2 | 4 | 2 | 1 | — | — | — | — | — | 5 | |
Wind waves Height (m) Direction Period (s) | SW 4 | SW 4 | SW 5 | NNW 3 | S 5 | SSW 3 | SSW 3 | SSW 3 | S 4 | SE 4 | SSE 4 | SW 4 | — | NNE 3 | SE 3 | SE 6 | SE 3 | SSE 3 | SSW 4 | SSW 4 | SW 4 |
5 | 26 | 12 | 1 | 2 | 1 | 2 | 7 | 15 | 24 | 15 | 5 | — | 2 | 3 | 11 | 3 | 6 | 26 | 25 | 16 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 10 | 139 | 132 | 10 | 190 | 17 | 17 | 1148 | 129 | 132 | 17 | 10 | 66 | 180 | 132 | 136 | 2720 | 2447 | 2621 | 238 | 11 |
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.











