Surf Forecasts:
Coastguard Beach surf forecast from 10 Aug 2026:
- Most powerful swell: Sunday 16 Aug, 8PM (local time) - 3.5ft (1.0m), 5s period, S swell with 45 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 1.0m 5s and forecast to arrive on Sunday (Aug 16) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 5s period and expected on Sunday (Aug 16) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Sun 16th Aug) | 3.5ft (1.0m) 5s |
Table - best surf conditions forecast for Coastguard Beach over the next 16 days.
The Lowdown
Alright, let’s get real here. I’m looking at the whole 16-day window, and I gotta be straight with you—there’s not a single standout day for a proper surf. It’s a total flat spell for Coastguard Beach, and that’s a tough pill to swallow.
We kick things off on Monday, August 10th. The swell is a tiny 1 ft from the S with a short 6-second period. The energy is super weak (6-8), so you’re basically looking at a lake. Winds are onshore or cross, making it even messier. The water temp is about average for this time of year, no major anomaly to speak of.
Tuesday the 11th sees a tiny bump in period from the E (9 seconds), but the swell height drops to 0.3 ft with energy at just 4. The morning has a bit of offshore wind, but there's nothing to ride. Same story through Wednesday and Thursday – tiny waves, if any, and the energy numbers (2-6) tell the story of a dead ocean.
Friday the 14th offers a glimmer with a 0.7 ft SSE swell and a brief clean window in the afternoon with offshore wind, but the energy is only 7. Not worth paddling out for.
Saturday the 15th morning has the “biggest” swell of the run so far at 2 ft from the NNE, but the period is a pathetic 4 seconds. That’s windswell junk. The energy climbs to 27, but it’s still poor. The wind is cross-off, so the surface might look nice, but there’s no power behind it. The swell direction (NNE) doesn’t match this exposed beach’s optimum from the SE anyway.
From the 16th through to the end of the window on the 25th of August, it’s a total write-off. Swell heights mostly hover between 0.3 ft and 3 ft, with the energy occasionally pushing into the moderate range (63 on the 19th morning, 92 on the 23rd morning), but the periods are short and the winds are often strong and cross-shore. The 23rd and 24th see winds up to 25 mph – that’s kite-surfing territory, not paddle surfing. The swell is too weak and too short-period to do anything with even when the wind is offshore.
So, to put it simply: there’s no surf worth mentioning for the next two weeks. It’s a long, dry, flat stretch. Sometimes this place goes quiet, and this is one of those times. Forecasts can change, but right now, leave the board in the car.
Rusty
Short Range ForecastMostly dry. Warm (max 28°C on Sun night, min 22°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Fri afternoon. Warm (max 24°C on Thu night, min 15°C on Fri afternoon). Wind will be generally light. | ||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | ||||||||||||||
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) | S 6 | S 6 | S 6 | E 9 | E 9 | E 7 | S 5 | S 6 | S 6 | E 14 | E 14 | E 13 | S 5 | E 10 | SSE 8 | SSE 8 | NNE 4 | SSE 8 | E 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 3 | 6 | 5 | 2 | 2 | 1 | 5 | 2 | 2 | 4 | 4 | 3 | 4 | 2 | 6 | 6 | 18 | 6 | 2 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | on | cross | cross-off | off | glassy | cross-off | glassy | cross-on | cross-off | cross-off | cross | cross-off | cross-off | off | cross | cross-off | cross-on | cross-off |
High Tide | 8:58PM3.02m | 9:45AM2.63m | 9:59PM3.13m | 10:42AM2.77m | 10:56PM3.22m | 11:35AM2.90m | 11:50PM3.26m | 12:26PM3.00m | 00:42AM3.24m | 1:14PM3.05m | 1:32AM3.15m | 2:00PM3.04m | 2:21AM3.01m | ||||||
Low Tide | 3:32AM0.28m | 3:41PM0.54m | 4:30AM0.16m | 4:40PM0.41m | 5:23AM0.06m | 5:36PM0.30m | 6:13AM0.02m | 6:29PM0.23m | 7:01AM0.04m | 7:20PM0.21m | 7:48AM0.13m | 8:10PM0.24m | |||||||
 |  | |  | |  | | | | | | | | |  | | | | | |
 | — | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — |
 | 7:47 | — | 7:46 | — | — | 7:45 | — | — | 7:44 | — | — | 7:43 | — | — | 7:40 | — | — | 7:39 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — |
Temp °C | 28 | 25 | 26 | 26 | 26 | 27 | 27 | 23 | 24 | 23 | 21 | 22 | 24 | 20 | 20 | 20 | 19 | 19 | 20 |
Feels °C | 29 | 25 | 25 | 24 | 26 | 28 | 27 | 24 | 24 | 22 | 20 | 21 | 23 | 16 | 16 | 16 | 15 | 17 | 17 |
Swell 1 Height (m) Direction Period (s) | SSW 4 | S 6 | — | E 8 | E 7 | — | S 5 | N 4 | S 6 | S 5 | E 14 | E 10 | S 5 | S 6 | N 5 | SSW 5 | SSE 8 | NNE 5 | NNE 4 |
| kJ | 3 | 6 | — | 1 | 1 | — | 5 | 2 | 2 | 1 | 4 | 2 | 4 | 1 | 17 | 6 | 6 | 12 | 2 |
Swell 2 Height (m) Direction Period (s) | S 6 | NNW 3 | E 8 | E 9 | S 6 | SE 6 | E 7 | S 6 | N 3 | E 7 | E 7 | E 13 | E 10 | E 10 | SSE 8 | SSE 8 | — | SSE 8 | SE 7 |
| kJ | 3 | 1 | 1 | 2 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | 3 | 2 | 2 | 6 | 6 | — | 6 | 2 |
Swell 3 Height (m) Direction Period (s) | E 8 | — | E 10 | — | E 9 | E 7 | E 9 | E 7 | E 8 | E 14 | E 8 | E 7 | E 10 | S 8 | SW 4 | E 12 | E 12 | SE 9 | E 8 |
| kJ | 1 | — | 2 | — | 2 | 1 | 1 | 1 | 1 | 4 | 1 | 1 | 2 | 1 | 1 | 3 | 3 | 3 | 1 |
Wind waves Height (m) Direction Period (s) | NW 3 | — | S 6 | SSW 4 | SW 4 | SW 4 | NNW 4 | — | — | SSW 3 | SSW 4 | SSW 5 | NNW 4 | NNW 5 | — | N 4 | NNE 4 | — | SW 3 |
| kJ | 1 | — | 5 | 13 | 9 | 4 | 3 | — | — | 4 | 19 | 50 | 20 | 30 | — | 3 | 18 | — | 4 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 205 | 613 | 486 | 205 | 103 | 384 | 611 | 613 | 1816 | 167 | 66 | 259 | 477 | 180 | 66 | 119 | 477 | 488 | 613 |
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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