Surf Forecasts:
Coastguard Beach surf forecast from 20 Aug 2026:
- Best quality surf: Sunday 23 Aug, 2AM (local time) - 3ft (0.9m), 5s period, SE swell with cross-offshore winds.
- Most powerful swell: Saturday 22 Aug, 8AM (local time) - 2ft (0.6m), 13s period, E swell with 125 kJ wave energy.
- Next surfable swell (1★+): Sunday 23 Aug, 2AM (local time) - 3ft (0.9m), 5s period with SE 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 Sunday (Aug 23) at 2AM. The primary swell is predicted to be 0.9m and 5s period with a secondary swell of 0.2m and 8s. Another secondary swell of 0.2m and 13s is also forecast. 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 0.6m 13s and forecast to arrive on Saturday (Aug 22) at 8AM. 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 Monday (Aug 24) at 2PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sun 23rd Aug) | 3ft (0.9m) 5s |
| Best Surf | 2AM (Sun 23rd Aug) | 3ft (0.9m) 5s |
| Most Powerful | 8AM (Sat 22nd Aug) | 2ft (0.6m) 13s |
Table - best surf conditions forecast for Coastguard Beach over the next 16 days.
The Lowdown
Alright, Rusty here. Let's chew the fat on what's coming up. I'm not gonna sugarcoat it – the next couple of weeks look pretty darn flat and unfriendly. You might want to find a new hobby for a bit.
The whole shebang starts on Thursday, August 20th, and it's a total dud for a solid ten days or more. We're looking at a long stretch where there's just nothing worth getting wet for. The swell is anemically small, the wind is all over the place, and just about every session is flagged as poor.
The combined energy of all swells directed here barely ever makes a peep, topping out in the weak range. Most days it's barely a whisper, which means no push, no power. The wave heights are consistently under 2ft to 2ft. When a slightly bigger pulse hits, like on Sunday, August 23rd with a 3ft wave, it's coming from the south with a period of just 4 seconds. That's junk. No shape, no power, just messy wind slop.
Even that glassy, clean morning on Wednesday, August 26th is a cruel joke because the swell is a pathetic 0.3ft. You'd be floating. The winds are mostly cross or cross-onshore, putting the final nail in the coffin. There's a brief, slightly less terrible moment around Tuesday, September 1st with a 3ft wave from the northeast, but the combined energy is still weak, and the period is only 5 seconds. It's still no good.
If I had to pick a best bet, it's the morning of Thursday, September 3rd. The wind will swing light offshore from the west, making for clean, smooth conditions at Coastguard Beach. But the wave height is barely 0.6ft with next to no energy. That's strictly a longboard or a funboard session for a saltwater fix. Then the run finishes on Friday, September 4th with clean, cross-offshore wind from the northwest, but the swell is still tiny at around 1ft to 2ft. It’s clean, but there's nothing on offer to ride.
This is just one of those flat spells that comes through here. It’s normal for the area. The ocean will wake up again, so don't throw out your wetsuit just yet.
Rusty.
Short Range ForecastHeavy rain (total 35mm), heaviest during Sat afternoon. Warm (max 26°C on Thu afternoon, min 19°C on Sat morning). Winds increasing (calm on Thu morning, fresh winds from the SE by Sat afternoon). | Days 4-6 Weather SummaryHeavy rain (total 28mm), heaviest during Sun afternoon. Warm (max 23°C on Sun night, min 17°C on Tue morning). Winds increasing (calm on Sun afternoon, fresh winds from the SW by Mon afternoon). | ||||||||||||||||||||
Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | |||||||||||||||
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 7 | ESE 9 | ESE 7 | ESE 8 | E 8 | E 8 | E 13 | E 8 | SE 5 | S 4 | E 12 | S 6 | SE 6 | E 6 | SE 6 | S 7 | E 11 | E 6 | E 10 | E 13 | E 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 21 | 16 | 10 | 14 | 12 | 11 | 14 | 10 | 35 | 25 | 11 | 72 | 19 | 3 | 5 | 4 | 3 | 3 | 2 | 3 | 3 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross | cross-off | cross | cross-on | cross-on | on | cross-on | cross-off | cross | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross | off | glassy | cross | cross-on |
High Tide | 6:01PM2.56m | 6:46AM2.21m | 6:57PM2.51m | 7:46AM2.18m | 7:54PM2.50m | 8:43AM2.20m | 8:48PM2.55m | 9:33AM2.27m | 9:38PM2.62m | 10:18AM2.36m | 10:23PM2.70m | 10:58AM2.47m | 11:06PM2.77m | ||||||||
Low Tide | 11:42AM0.93m | 00:34AM0.76m | 12:38PM1.01m | 1:34AM0.80m | 1:35PM1.04m | 2:31AM0.78m | 2:31PM1.02m | 3:22AM0.72m | 3:23PM0.95m | 4:08AM0.64m | 4:10PM0.85m | 4:49AM0.56m | 4:54PM0.74m | ||||||||
 | |  |  | |  |  |  |  |  | |  | | | | | |  | | | | |
 | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — |
 | — | 7:32 | — | — | 7:30 | — | — | 7:30 | — | — | 7:28 | — | — | 7:25 | — | — | 7:24 | — | — | 7:22 | — |
mm | — | — | — | — | — | 1 | 9 | 16 | 9 | 5 | 23 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 26 | 25 | 20 | 20 | 21 | 19 | 20 | 23 | 22 | 21 | 23 | 22 | 23 | 22 | 18 | 20 | 20 | 21 | 22 | 21 |
Feels °C | 27 | 25 | 24 | 18 | 18 | 22 | 19 | 18 | 25 | 23 | 22 | 23 | 20 | 19 | 19 | 13 | 16 | 16 | 21 | 20 | 18 |
Swell 1 Height (m) Direction Period (s) | ESE 7 | ESE 7 | ESE 7 | ESE 8 | E 8 | E 8 | S 6 | ESE 4 | E 8 | E 5 | E 6 | E 12 | SE 6 | E 6 | SE 6 | ESE 6 | N 4 | E 6 | SE 6 | E 10 | E 6 |
| kJ | 21 | 9 | 10 | 14 | 12 | 11 | 1 | 5 | 4 | 9 | 6 | 11 | 19 | 3 | 5 | 3 | 3 | 3 | 1 | 2 | 3 |
Swell 2 Height (m) Direction Period (s) | SSW 5 | ESE 9 | E 9 | E 6 | E 14 | NNE 4 | E 13 | E 8 | E 13 | E 12 | E 12 | ESE 12 | E 12 | E 11 | SW 4 | S 7 | ESE 5 | SE 5 | E 10 | E 6 | E 10 |
| kJ | 6 | 16 | 2 | 2 | 4 | 1 | 14 | 10 | 13 | 11 | 11 | 14 | 11 | 2 | 3 | 4 | 3 | 1 | 2 | 1 | 2 |
Swell 3 Height (m) Direction Period (s) | SE 9 | E 8 | — | E 15 | E 14 | E 14 | SE 13 | S 5 | E 13 | E 8 | E 7 | E 12 | E 6 | E 12 | S 7 | E 11 | E 11 | — | E 6 | E 13 | E 12 |
| kJ | 3 | 5 | — | 4 | 4 | 4 | 7 | 2 | 13 | 5 | 4 | 11 | 3 | 3 | 4 | 2 | 2 | — | 1 | 3 | 3 |
Wind waves Height (m) Direction Period (s) | — | SSW 3 | NNW 3 | N 3 | N 4 | — | E 4 | — | SE 5 | S 4 | S 4 | S 6 | SW 4 | SSW 4 | NW 3 | N 4 | — | SW 3 | SW 3 | SSW 4 | S 4 |
| kJ | — | 2 | 2 | 5 | 8 | — | 9 | — | 35 | 25 | 28 | 72 | 15 | 42 | 5 | 14 | — | 2 | 2 | 10 | 10 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 10 | 132 | 132 | 477 | 2745 | 137 | 808 | 215 | 0 | 132 | 10 | 101 | 11 | 142 | 138 | 205 | 132 | 167 | 985 | 985 | 139 |
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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