Surf Forecasts:
Coastguard Beach surf forecast from 21 Aug 2026:
- Best quality surf: Saturday 22 Aug, 2PM (local time) - 3ft (0.9m), 5s period, E swell with glassy winds.
- Most powerful swell: Saturday 22 Aug, 5AM (local time) - 4.5ft (1.3m), 5s period, E swell with 99 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 2PM (local time) - 3ft (0.9m), 5s period with E 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 Saturday (Aug 22) at 2PM. The primary swell is predicted to be 0.9m and 5s period with a secondary swell of 0.1m and 13s. Another secondary swell of 0.4m and 5s is also forecast. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Coastguard Beach in the next 16 days are 1.3m 5s and forecast to arrive on Saturday (Aug 22) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Tuesday (Aug 25) at 5PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Sat 22nd Aug) | 3ft (0.9m) 5s |
| Best Surf | 2PM (Sat 22nd Aug) | 3ft (0.9m) 5s |
| Most Powerful | 5AM (Sat 22nd Aug) | 4.5ft (1.3m) 5s |
Table - best surf conditions forecast for Coastguard Beach over the next 16 days.
The Lowdown
Alright, Rusty here. Let's have a look at what's cookin'.
Honestly, mate, it's a pretty flat run for the next 16 days at Coastguard Beach. We're looking at a big gap of small, weak, and messy conditions before anything even gets close to rideable, and even then it's nothing to write home about. The first week is just a write-off for surf. The second week has a tiny pulse, but it's not a stand-out.
The whole 16-day window is a bit of a drought. Most days are showing tiny, short-period windswell with no energy. The combined energy values are consistently low – mostly in the single digits and tens, never even cracking 100 (weak). The water temp is sitting at 69°, which is about 1° warmer than average for this time of year, so that's pretty normal.
Friday 21st August kicks it off with a measly 3 ft of swell from the ENE with a period of 4 seconds – that's just bumpy water. Cross-on wind at 16 mph and rain. Not a chance.
Saturday 22nd has a tiny 3 ft onshore bump in the morning, but it's messy. The afternoon cleans up with a light offshore wind but the swell drops to 3 ft with a period of only 5 seconds – still poor.
From Sunday 23rd through to Wednesday 27th, the swell is tiny, mostly under 2 ft, and the period is all over the place but nothing good. The strongest energy in that stretch is a 141 (moderate) from a 12-second period swell on Sunday morning, but it's cross-onshore and choppy. That's the best of a bad bunch, but still not worth paddling out for.
Saturday 29th and Sunday 30th are clean with offshore winds, but the swell is only 1 ft. Barely a ripple.
The only real sniff of something comes on Tuesday 1st September. The morning shows 4 ft from the south with a 5-second period and onshore wind. That's junk. The energy is 73 (weak). The afternoon vanishes to 0.3 ft.
After that, it's back to tiny, weak, and choppy until the end of the forecast. No standouts, no swell direction matching the optimum (SE), and the consistency is zero for quality.
There are no good surf options in this 16-day window. The area is just going through a quiet spell. It tends not to stay this poor for long, so forecasts can change, but for now, keep the board in the car and go for a fish.
Rusty.
Short Range ForecastHeavy rain (total 30mm), heaviest during Fri morning. Warm (max 24°C on Sun night, min 18°C on Fri morning). Mainly fresh winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Mon afternoon, min 19°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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 8 | ENE 4 | E 5 | E 6 | E 5 | ESE 5 | E 12 | SSE 5 | SE 6 | S 6 | SE 7 | E 6 | SE 6 | E 6 | S 6 | S 5 | SW 4 | ESE 7 | ESE 7 | E 9 | ESE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 35 | 31 | 73 | 62 | 33 | 7 | 11 | 44 | 26 | 19 | 11 | 7 | 5 | 5 | 6 | 2 | 4 | 10 | 5 | 6 | 14 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | off | glassy | cross-on | cross | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | off | cross | cross | cross-on | cross-on | on |
High Tide | 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 | 11:37AM2.59m | 11:46PM2.83m | ||||||||
Low Tide | 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 | 5:28AM0.49m | 5:36PM0.63m | ||||||||
 |  |  |  | |  |  |  |  |  | |  | |  | | | | | | | | |
 | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — |
 | — | 7:30 | — | — | 7:30 | — | — | 7:28 | — | — | 7:25 | — | — | 7:24 | — | — | 7:22 | — | — | 7:22 | — |
mm | 12 | 6 | 6 | 1 | 4 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 19 | 19 | 20 | 21 | 20 | 21 | 23 | 24 | 24 | 25 | 23 | 21 | 23 | 22 | 20 | 22 | 22 | 21 | 20 | 20 |
Feels °C | 15 | 17 | 16 | 19 | 24 | 21 | 23 | 22 | 25 | 19 | 20 | 20 | 18 | 21 | 19 | 19 | 22 | 20 | 21 | 17 | 20 |
Swell 1 Height (m) Direction Period (s) | E 8 | E 14 | S 5 | E 13 | E 5 | ESE 5 | ESE 5 | E 12 | SE 6 | E 6 | SE 7 | E 6 | SE 6 | E 6 | S 6 | S 5 | SW 4 | SW 4 | ESE 7 | E 9 | ESE 8 |
| kJ | 35 | 4 | 2 | 3 | 33 | 7 | 4 | 11 | 26 | 7 | 11 | 7 | 5 | 3 | 6 | 2 | 4 | 4 | 5 | 6 | 14 |
Swell 2 Height (m) Direction Period (s) | E 15 | SE 14 | E 14 | E 13 | E 13 | N 4 | N 4 | E 6 | E 12 | E 12 | ENE 6 | SE 6 | E 6 | SE 11 | ESE 6 | SE 6 | E 7 | ESE 7 | SE 10 | ESE 6 | E 11 |
| kJ | 4 | 8 | 15 | 14 | 3 | 5 | 1 | 3 | 11 | 11 | 8 | 6 | 3 | 5 | 4 | 1 | 4 | 10 | 4 | 4 | 2 |
Swell 3 Height (m) Direction Period (s) | E 14 | — | SE 13 | SE 13 | ESE 8 | E 7 | E 12 | ESE 12 | E 6 | E 11 | E 12 | S 6 | E 11 | E 11 | E 6 | E 10 | NNW 4 | E 12 | SW 4 | E 11 | — |
| kJ | 4 | — | 7 | 7 | 12 | 4 | 11 | 14 | 1 | 2 | 3 | 3 | 2 | 2 | 1 | 2 | 1 | 3 | 1 | 2 | — |
Wind waves Height (m) Direction Period (s) | ENE 4 | ENE 4 | E 5 | E 6 | — | — | SSE 4 | SSE 5 | SW 4 | S 6 | SW 4 | SW 4 | SW 3 | SW 5 | W 3 | WNW 4 | WSW 4 | WNW 3 | — | S 3 | SSE 3 |
| kJ | 29 | 31 | 73 | 62 | — | — | 1 | 44 | 6 | 19 | 16 | 5 | 2 | 41 | 8 | 6 | 22 | 4 | — | 2 | 3 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 477 | 910 | 139 | 186 | 10 | 10 | 139 | 76 | 69 | 11 | 129 | 10 | 180 | 139 | 488 | 205 | 1148 | 129 | 182 | 384 | 496 |
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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