Surf Forecasts:
Coastguard Beach surf forecast from 9 Sep 2026:
- Most powerful swell: Thursday 10 Sep, 11AM (local time) - 4ft (1.2m), 7s period, SW swell with 131 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 1.2m 7s and forecast to arrive on Thursday (Sep 10) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Thursday (Sep 10) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Thu 10th Sep) | 4ft (1.2m) 7s |
Table - best surf conditions forecast for Coastguard Beach over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let me level with you. Looking at Coastguard Beach for the next couple of weeks, it’s a lean stretch. The ocean’s gonna be pretty quiet, so don’t rush to wax up just yet.
The first bit of promise shows up on the 10th with a 4ft swell and some cross-offshore wind, but it’s not enough to get the heart racing. That’s the high point of the first week, and frankly, it’s a low one.
The real story is the gap. From the 11th all the way through the 19th, it’s flat to tiny, with messy, weak conditions. A lot of days with nothing over 2ft. The swell energy is just dead, mostly under 50. On the 15th, we get a little pulse of 3ft, but it’s got a 4-second period, which is just chopped-up windswell. Not worth paddling out for.
Then, on the 20th, things finally perk up. The Sunday morning session is the one to set your alarm for. We’ve got a 3ft swell, absolutely glassy conditions, and a light offshore breeze. The energy is still low at 68, but it's the most we’ve seen. It’s clean, it’s glassy, and it’s surfable. It’s not going to be big, maybe waist-high at best, but it’ll be clean. This is a good day for a log or a fish.
The water temp is around 66°, which is about normal for this time of year, nothing crazy.
After that, it’s back to the small, weak stuff with onshore winds for the rest of the window. There’s a bit more wind on the 23rd, but the swell’s still tiny.
So, the bottom line is there’s exactly one real highlight here, and that’s the glassy, clean little waves on Sunday the 20th. It’s not a day for barrels, but it’s the best the forecast has to offer. For the rest of the time, you might as well find another hobby. This setup is so weak and small that if the wind picks up, it looks like it could be a better day for kite surfing than paddle surfing. But don't worry, a run like this usually doesn't last forever.
Rusty
Short Range ForecastMostly dry. Warm (max 26°C on Thu afternoon, min 17°C on Fri morning). Winds decreasing (strong winds from the SW on Wed night, light winds from the E by Fri afternoon). | Days 4-6 Weather SummaryModerate rain (total 10mm), heaviest on Sun afternoon. Warm (max 22°C on Sun night, min 18°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | |||||||||||||||
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) | ENE 9 | E 10 | SE 9 | SW 7 | E 10 | S 7 | SSE 7 | S 6 | S 7 | E 10 | E 10 | ESE 10 | S 4 | S 4 | ESE 9 | ESE 9 | ESE 9 | E 10 | S 4 | S 4 | E 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 8 | 2 | 3 | 131 | 2 | 25 | 9 | 3 | 4 | 2 | 2 | 10 | 9 | 22 | 8 | 8 | 8 | 7 | 14 | 31 | 7 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | on | off | glassy | cross | cross-off | cross | cross-off | cross-off | cross-off | cross-on | cross-on | cross | cross-off | cross-off |
High Tide | 10:27AM2.82m | 10:44PM3.08m | 11:16AM2.94m | 11:35PM3.10m | 12:02PM3.03m | 00:23AM3.07m | 12:46PM3.07m | 1:10AM2.99m | 1:28PM3.05m | 1:56AM2.87m | 2:10PM2.98m | 2:41AM2.72m | 2:53PM2.88m | 3:28AM2.56m | |||||||
Low Tide | 4:30PM0.39m | 5:04AM0.18m | 5:23PM0.28m | 5:51AM0.17m | 6:12PM0.21m | 6:35AM0.21m | 6:59PM0.19m | 7:17AM0.30m | 7:45PM0.22m | 7:59AM0.42m | 8:30PM0.31m | 8:41AM0.57m | 9:16PM0.43m | ||||||||
 | |  |  |  |  | | |  | | | | |  |  | | | | | |  | |
 | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — |
 | — | 7:00 | — | — | 6:58 | — | — | 6:57 | — | — | 6:54 | — | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 5 | — | — | — | — | — | 1 |
Temp °C | 21 | 21 | 22 | 24 | 26 | 25 | 18 | 17 | 20 | 19 | 20 | 21 | 21 | 21 | 22 | 21 | 22 | 21 | 20 | 21 | 23 |
Feels °C | 19 | 18 | 19 | 22 | 25 | 24 | 13 | 13 | 18 | 19 | 18 | 20 | 19 | 17 | 23 | 22 | 21 | 21 | 18 | 20 | 24 |
Swell 1 Height (m) Direction Period (s) | ENE 9 | E 9 | SE 9 | E 10 | E 10 | S 7 | SSE 7 | N 4 | S 7 | N 3 | E 10 | ESE 10 | ESE 10 | ESE 10 | ESE 9 | SSE 4 | ESE 9 | E 10 | E 9 | E 9 | E 9 |
| kJ | 8 | 2 | 3 | 2 | 2 | 25 | 9 | 9 | 4 | 1 | 2 | 10 | 9 | 9 | 8 | 2 | 8 | 7 | 7 | 7 | 2 |
Swell 2 Height (m) Direction Period (s) | — | E 10 | E 8 | E 8 | E 8 | SE 10 | SE 9 | S 6 | NNE 4 | S 7 | SE 6 | SE 5 | — | — | — | ESE 9 | SSE 4 | E 15 | E 15 | E 15 | E 14 |
| kJ | — | 2 | 1 | 1 | 1 | 4 | 3 | 3 | 2 | 1 | 1 | 1 | — | — | — | 8 | 1 | 4 | 4 | 4 | 4 |
Swell 3 Height (m) Direction Period (s) | E 10 | — | — | E 8 | S 7 | — | E 11 | SE 4 | SE 4 | E 10 | — | — | — | — | — | — | SW 4 | E 15 | E 15 | E 14 | SE 14 |
| kJ | 2 | — | — | 5 | 1 | — | 2 | 1 | 1 | 2 | — | — | — | — | — | — | 1 | 4 | 4 | 4 | 7 |
Wind waves Height (m) Direction Period (s) | S 3 | S 4 | SSW 5 | SW 7 | SSW 5 | NW 4 | NNW 4 | — | — | — | S 4 | S 3 | S 4 | S 4 | SSW 4 | SW 4 | — | S 2 | S 4 | S 4 | SSW 4 |
| kJ | 5 | 19 | 77 | 131 | 61 | 12 | 10 | — | — | — | 1 | 3 | 9 | 22 | 8 | 1 | — | 1 | 14 | 31 | 29 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 848 | 910 | 1922 | 137 | 408 | 99 | 139 | 238 | 186 | 620 | 1155 | 167 | 502 | 381 | 139 | 186 | 486 | 808 | 763 | 3405 | 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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