Surf Forecasts:
Coastguard Beach surf forecast from 15 Aug 2026:
- Best quality surf: Monday 17 Aug, 2PM (local time) - 4.5ft (1.4m), 6s period, SE swell with offshore winds.
- Most powerful swell: Monday 17 Aug, 2PM (local time) - 4.5ft (1.4m), 6s period, SE swell with 128 kJ wave energy.
- Next surfable swell (1★+): Monday 17 Aug, 2PM (local time) - 4.5ft (1.4m), 6s 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 Monday (Aug 17) at 2PM. The primary swell is predicted to be 1.4m and 6s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Coastguard Beach in the next 16 days are 1.4m 6s and forecast to arrive on Monday (Aug 17) at 2PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Thursday (Aug 20) at 2PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Mon 17th Aug) | 4.5ft (1.4m) 6s |
| Best Surf | 2PM (Mon 17th Aug) | 4.5ft (1.4m) 6s |
| Most Powerful | 2PM (Mon 17th Aug) | 4.5ft (1.4m) 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 outlook is a tough one. We’ve got a 16-day window, but the surf is basically off the table for the entire run. There’s no standout, no hidden gem, no sneaky session to get excited about. The only spot on the radar is Coastguard Beach, but it’s a lean stretch ahead.
Looking at the whole picture, the swell energy is just too weak. We’re talking combined energy values barely reaching 173 (moderate) on one afternoon, but mostly stuck in the low double digits or even single digits – that’s barely a ripple. The waves themselves are tiny, with the biggest push coming in around 4 ft on Monday the 17th, but that’s coupled with a strong 28 mph wind and heavy rain, making it absolute junk. The period is short, around 5 seconds, so it’s all windswell and no shape.
For the first real week, from Saturday the 15th through to Saturday the 22nd, it’s grim. The swell is below 3 ft most days, and when it does bump up, the wind is onshore, cross-onshore, or just too strong. The only clean windows are on Monday afternoon the 17th (3 ft from SSE, 6 sec) and Tuesday morning the 18th (2 ft from SE, 7 sec), but the energy is so low (63 combined energy) it’s barely worth paddling out for. The water temp is about average for this time of year, so no shock there, but it won’t make up for the lack of waves.
Then we hit a real dead zone. From Sunday the 23rd all the way through to the end of the forecast on the 30th, the combined energy drops to pathetic levels – mostly below 30. The swell is tiny, 0.3 ft to 0.7 ft, and the period is all over the place. There’s a glassy morning on Wednesday the 26th with a 0.7 ft, 11-second groundswell from ESE, but it’s ankle-slappers. The 16-second period on the 20th is a long-period groundswell, but again, it’s 0.3 ft – you’d need a microscope to see it.
Because the swell is so small and the wind is often cross or onshore, the setup at Coastguard Beach is a beach-and-reef mix. Honestly, for the few days where there’s a bit of push (like the 4 ft on the 17th) but with messy wind, this looks more interesting for a kite surfer than a paddle surfer. There’s just no quality on offer for a standard surfer.
Bottom line: For the next 16 days, there’s nothing to recommend. The spot is consistent, but the surf is not. It’s a blank run, and for this area, that’s pretty normal when the forecast is this flat. Keep the board waxed and hope the next swell fills in.
Rusty.
Short Range ForecastModerate rain (total 19mm), heaviest on Mon morning. Warm (max 24°C on Mon afternoon, min 20°C on Fri night). Winds increasing (light winds from the SSW on Sun morning, strong winds from the S by Mon morning). | Days 5-7 Weather SummarySome drizzle, heaviest during Thu afternoon. Warm (max 25°C on Thu morning, min 19°C on Mon night). Mainly fresh winds. | ||||||||||||||||||
Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | ||||||||||||||
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) | N 3 | NNE 4 | E 9 | E 9 | E 9 | E 8 | E 8 | SSE 5 | SSE 6 | SE 7 | SE 7 | SE 7 | SE 6 | ESE 6 | ESE 6 | ESE 6 | SE 9 | E 16 | SE 5 |
Wave Graph | |||||||||||||||||||
3 | 6 | 2 | 2 | 1 | 1 | 1 | 91 | 80 | 39 | 31 | 16 | 14 | 15 | 7 | 6 | 20 | 5 | 6 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross-off | cross | cross | cross-off | cross | cross-off | cross | cross-off | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross |
High Tide | 1:32AM3.15m | 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 | |||||||
Low Tide | 7:48AM0.13m | 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 | |||||||
— | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — | 5:52 | — | — | |
7:40 | — | 7:39 | — | — | 7:38 | — | — | 7:37 | — | — | 7:36 | — | — | 7:34 | — | — | 7:32 | — | |
mm | — | — | — | — | — | — | 2 | 15 | 2 | — | — | — | — | — | — | — | — | 1 | 1 |
Temp °C | 23 | 20 | 21 | 21 | 22 | 22 | 22 | 21 | 24 | 21 | 20 | 21 | 21 | 23 | 24 | 23 | 25 | 25 | 25 |
Feels °C | 21 | 17 | 19 | 20 | 20 | 18 | 18 | 16 | 26 | 19 | 19 | 20 | 20 | 22 | 22 | 22 | 24 | 24 | 27 |
Swell 1 Height (m) Direction Period (s) | SW 3 | — | NNE 4 | NNE 4 | E 9 | E 8 | E 8 | — | SSE 6 | SE 7 | SE 7 | SE 7 | SE 6 | ESE 6 | ESE 6 | ESE 6 | E 9 | E 6 | SE 5 |
2 | — | 3 | 1 | 1 | 1 | 1 | — | 80 | 39 | 31 | 16 | 14 | 15 | 7 | 6 | 2 | 3 | 6 | |
Swell 2 Height (m) Direction Period (s) | E 9 | E 9 | S 6 | SE 6 | — | — | — | — | SSW 7 | SSW 8 | SSW 7 | NE 4 | ENE 4 | NE 4 | E 10 | E 9 | SE 9 | E 9 | E 6 |
2 | 2 | 1 | 1 | — | — | — | — | 19 | 6 | 16 | 6 | 2 | 1 | 2 | 2 | 20 | 2 | 3 | |
Swell 3 Height (m) Direction Period (s) | — | E 12 | E 9 | E 9 | SE 6 | — | — | — | — | SSW 7 | SE 12 | ESE 8 | ESE 8 | E 10 | SE 8 | — | ESE 6 | E 16 | E 8 |
— | 3 | 2 | 2 | 1 | — | — | — | — | 21 | 6 | 7 | 6 | 2 | 2 | — | 4 | 5 | 6 | |
Wind waves Height (m) Direction Period (s) | N 3 | NNE 4 | — | — | S 6 | S 4 | S 4 | SSE 5 | SE 6 | NNE 3 | NNE 4 | — | — | SSW 3 | SSW 4 | SSW 4 | S 5 | SSW 5 | SW 4 |
3 | 6 | — | — | 1 | 12 | 40 | 91 | 74 | 5 | 10 | — | — | 1 | 10 | 25 | 56 | 61 | 6 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 842 | 1808 | 2417 | 1808 | 1686 | 1156 | 1643 | 117 | 99 | 99 | 66 | 66 | 136 | 426 | 129 | 611 | 129 | 102 | 116 |
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.











