Surf Forecasts:
Coastguard Beach surf forecast from 9 Aug 2026:
- Most powerful swell: Sunday 9 Aug, 2PM (local time) - 1.5ft (0.5m), 6s period, SSW swell with 22 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 0.5m 6s and forecast to arrive on Sunday (Aug 09) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Thursday (Aug 13) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Sun 9th Aug) | 1.5ft (0.5m) 6s |
Table - best surf conditions forecast for Coastguard Beach over the next 16 days.
The Lowdown
Righto, grab a coffee, sit down, and let’s talk about the surf ahead. I’m looking at Coastguard Beach. Gotta be straight with you, it’s a rough 16-day window for this spot. The first solid bit of swell doesn’t show until way down the track, so we’re looking at a long stretch of flatness or tiny junk before that. We’re talking about a gap of nearly two weeks where the waves are basically absent or so small it’s not worth paddling out. That’s a long blank run, and it’s not abnormal for this area when the conditions just don't align.
Alright, let’s get into it. For the first week, from August 9th through to around August 21st, it’s pretty grim. Swell heights are mostly hanging around 0.3 ft to 1 ft with periods that are short and weak – like 6 to 9 seconds. The energy is low, with combined readings mostly under 30 – that’s barely a ripple. Winds do swing offshore or glassy at times, which is nice for the soul, but with nada to ride, it’s just a clean surface. A few afternoons like August 11th Tuesday arvo go glassy, but there’s only 0.3 ft of swell. It’s a flat spell. For beginners, it’s safe to say there’s no real surf to learn on, and for anyone else, it’s strictly a tanning mission.
Now, the one standout in this whole outlook shows up on Monday the 24th of August, in the morning. That’s a long way off, so take it with a grain of salt, but it’s the best we’ve got. Swell builds to 6 ft coming from the NE, with a period of 9 seconds. The combined energy jumps to 515 – that’s moderate to strong, and you’ll feel it. A 6 ft swell is getting up there, and with a NE direction, it’s hitting the coast from a different angle than the usual tiny stuff. The wind is a fresh offshore from the SW at 19 mph, and that’s clean. For the few locals who stick it out through the flat, this could be a decent session. Keep in mind, though, the water temp for this break is about average for the time of year, nothing crazy.
This is what it is, folks. A bunch of quiet days with a single, distant window of hope. Stay patient. Rusty
Short Range ForecastLight rain (total 2mm), mostly falling on Sat night. Warm (max 30°C on Sun afternoon, min 23°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryModerate rain (total 12mm), heaviest on Wed morning. Warm (max 28°C on Tue night, min 18°C on Wed night). Winds increasing (calm on Tue night, fresh winds from the NW by Fri morning). | ||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | ||||||||||||||
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 | SSW 6 | E 9 | S 6 | SSE 6 | S 3 | E 9 | E 9 | E 9 | SSE 6 | S 6 | SSE 6 | S 4 | SSE 5 | SSW 5 | S 6 | SE 8 | SE 8 | SE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 2 | 12 | 2 | 4 | 4 | 2 | 2 | 2 | 2 | 3 | 3 | 6 | 10 | 11 | 22 | 6 | 16 | 10 | 11 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | cross-off | off | cross-on | cross-off | cross-off | cross-off | glassy | glassy | cross | cross-on | glassy | cross-off | cross-on | cross-off | cross-off | cross | cross-off |
High Tide | 8:43AM2.50m | 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 | |||||||
Low Tide | 2:31AM0.40m | 2:38PM0.65m | 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 | |||||||
 |  | |  | |  | | | | |  |  |  |  |  |  | | | | |
 | — | 5:41 | — | — | 5:41 | — | — | 5:43 | — | — | 5:43 | — | — | 5:45 | — | — | 5:46 | — | — |
 | 7:50 | — | 7:47 | — | — | 7:46 | — | — | 7:45 | — | — | 7:44 | — | — | 7:43 | — | — | 7:40 | — |
mm | 1 | — | — | — | — | — | 1 | — | — | — | 7 | 1 | — | 1 | 2 | 1 | — | — | — |
Temp °C | 26 | 27 | 30 | 29 | 25 | 28 | 25 | 24 | 27 | 28 | 20 | 19 | 19 | 21 | 23 | 24 | 19 | 21 | 23 |
Feels °C | 25 | 27 | 31 | 29 | 25 | 25 | 23 | 24 | 28 | 27 | 21 | 18 | 18 | 22 | 26 | 25 | 13 | 18 | 20 |
Swell 1 Height (m) Direction Period (s) | E 8 | SSW 6 | E 8 | SSW 4 | SSE 6 | — | E 8 | SE 6 | E 7 | SSE 6 | N 4 | N 3 | E 14 | SSE 5 | SSW 5 | S 6 | N 4 | SW 4 | SE 8 |
| kJ | 1 | 12 | 1 | 4 | 4 | — | 1 | 1 | 1 | 3 | 3 | 1 | 4 | 11 | 22 | 6 | 3 | 4 | 11 |
Swell 2 Height (m) Direction Period (s) | SE 7 | E 8 | — | S 6 | N 3 | E 8 | E 9 | E 7 | — | SSW 4 | S 6 | E 8 | E 7 | E 14 | SE 4 | E 10 | SE 8 | SE 8 | E 12 |
| kJ | 2 | 1 | — | 3 | 1 | 1 | 2 | 1 | — | 2 | 3 | 1 | 1 | 4 | 1 | 2 | 16 | 10 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | E 9 | E 8 | SW 4 | E 10 | S 7 | E 9 | E 9 | E 7 | E 8 | E 14 | E 11 | E 7 | E 10 | E 13 | E 13 | N 4 | E 10 |
| kJ | — | — | 2 | 1 | 1 | 2 | 1 | 2 | 2 | 1 | 1 | 4 | 2 | 1 | 2 | 3 | 3 | 3 | 2 |
Wind waves Height (m) Direction Period (s) | SSW 5 | — | SSW 4 | NW 3 | — | S 3 | SSW 3 | SW 4 | SW 4 | NNW 4 | — | SSE 6 | S 4 | WSW 4 | NNW 3 | WNW 4 | W 2 | WSW 4 | W 3 |
| kJ | 14 | — | 18 | 2 | — | 2 | 4 | 5 | 16 | 4 | — | 6 | 10 | 11 | 1 | 10 | 1 | 21 | 6 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 99 | 180 | 385 | 66 | 620 | 563 | 238 | 205 | 238 | 613 | 613 | 1658 | 137 | 139 | 613 | 477 | 186 | 985 | 138 |
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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