
Surf Forecasts:
Coastguard Beach surf forecast from 11 Sep 2026:
- Best quality surf: Sunday 13 Sep, 5PM (local time) - 3ft (0.9m), 5s period, SSE swell with offshore winds.
- Most powerful swell: Tuesday 15 Sep, 5AM (local time) - 4.5ft (1.4m), 6s period, NE swell with 135 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 5PM (local time) - 3ft (0.9m), 5s period with SSE 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 (Sep 13) at 5PM. The primary swell is predicted to be 0.9m and 5s period with a secondary swell of 0.7m and 4s. Another secondary swell of 0.2m and 10s is also forecast. 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 Tuesday (Sep 15) 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 0.9m 4s period and expected on Thursday (Sep 17) at 5PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Sun 13th Sep) | 3ft (0.9m) 5s |
| Best Surf | 5PM (Sun 13th Sep) | 3ft (0.9m) 5s |
| Most Powerful | 5AM (Tue 15th Sep) | 4.5ft (1.4m) 6s |
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’ over the next couple weeks.
Honestly, mate, it’s a pretty flat and quiet run for the most part. We’re looking at a whole lot of nothing for the first week and a bit. The swell just isn’t showing up with any kind of push, and when it does, the wind is usually in the way. We’re talking about a stretch of tiny, weak waves – if you can even call 'em that. The first real chance of anything worth paddling out for doesn't appear until the very end of the period, and even then it's a long shot.
So, the only break on the radar is Coastguard Beach, and honestly, it’s a real slow burner. The water temp is sittin’ around 67°F, which is pretty average for this time of year, nothing wild there.
Friday 11th September through Saturday 26th September is a long, painful wait. For days on end, the swell is barely a ripple – 0.3ft to 1ft – with a combined wave energy that barely cracks double digits most of the time (e.g., 7 or 10). That’s flat, plain and simple. The wind is mostly cross or cross-on, chopping up whatever dribble is there. There’s a little sliver of hope on Sunday 13th September afternoon when a westerly offshore gets in, but the swell is still at a measly 3ft with a short period of 5 seconds. It’s surfable, but it’s not going to get the heart racing.
The only time we get a tiny pulse is on Tuesday 15th September morning when the swell bumps up to 4ft from the NE, and the combined energy hits 103 – that’s moderate energy, finally! But the wind is a nasty cross-on from the NE at 19 mph, turning it into a lumpy, choppy mess. Not worth the hassle.
We then go back into the doldrums. A few glassy moments pop up on Sunday 20th September morning and Thursday 24th September morning (calm wind, glassy conditions), but with the swell stuck at a pathetic 2ft to 2ft, you’ll need a longboard and a whole lot of patience. For a beach break, the short-period swell means the waves will be weak and crumbly.
If you’re a kite surfer, the strong cross-on winds and small, messy conditions on Monday 21st and Tuesday 22nd might look interesting, but for a paddle surfer, it’s a no-go.
The standout, if you can even call it that, is the very end. Thursday 24th September sees solid-looking conditions: glassy morning with a clean 2ft east swell, and the afternoon cleans up with a light cross-off. Still tiny, but it’s the cleanest you’ll see. Friday 25th September morning is also looking clean with that northwesterly cross-off. But it’s all still ankle-snappers.
There’s no big swell to get excited about. No groundswell, no standouts. Just a long, flat run with a few brief, clean but tiny windows. The forecasts can change, but right now, this is a period for fixing your gear, not using it.
Rusty.
Short Range ForecastHeavy rain (total 61mm), heaviest during Sun afternoon. Warm (max 21°C on Fri night, min 16°C on Mon morning). Winds increasing (calm on Fri night, fresh winds from the N by Mon morning). | Days 5-7 Weather SummarySome drizzle, heaviest during Mon afternoon. Very mild (max 18°C on Mon night, min 13°C on Tue night). Winds decreasing (fresh winds from the NNE on Mon night, light winds from the SSE by Wed night). | |||||||||||||||||||
Fri 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
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) | S 6 | S 6 | E 10 | SSW 6 | S 4 | SE 10 | SSE 5 | SE 6 | ESE 6 | ESE 7 | NNE 6 | NE 6 | NE 6 | E 7 | E 7 | E 8 | E 8 | E 7 | E 13 | E 7 |
Wave Graph | ||||||||||||||||||||
3 | 3 | 2 | 3 | 22 | 24 | 39 | 20 | 16 | 18 | 115 | 93 | 56 | 23 | 38 | 41 | 29 | 14 | 13 | 4 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross | cross | cross-on | off | off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | cross-on | cross | cross-off | cross-off |
High Tide | 00:23AM3.07m | 12:46PM3.07m | 1:10AM2.99m | 1:28PM3.05m | 1:56AM2.87m | 2:10PM2.98m | 2:41AM2.72m | 2:53PM2.88m | 3:28AM2.56m | 3:38PM2.75m | 4:17AM2.40m | 4:25PM2.62m | ||||||||
Low Tide | 6:12PM0.21m | 6:35AM0.21m | 6:59PM0.19m | 7:17AM0.30m | 7:45PM0.22m | 7:59AM0.42m | 8:30PM0.31m | 8:41AM0.57m | 9:16PM0.43m | 9:25AM0.73m | 10:05PM0.56m | 10:11AM0.87m | 10:57PM0.69m | |||||||
— | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | |
6:57 | — | — | 6:54 | — | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — | — | 6:47 | — | — | 6:45 | — | |
mm | — | — | — | — | — | 2 | 51 | — | 8 | 1 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 21 | 18 | 19 | 20 | 20 | 20 | 19 | 18 | 17 | 18 | 15 | 14 | 14 | 15 | 15 | 15 | 16 | 18 | 21 |
Feels °C | 18 | 21 | 17 | 17 | 17 | 19 | 21 | 20 | 14 | 15 | 15 | 9 | 9 | 11 | 12 | 13 | 14 | 13 | 15 | 19 |
Swell 1 Height (m) Direction Period (s) | N 4 | NNE 4 | NE 3 | NE 3 | E 10 | SE 10 | SSE 4 | SE 6 | ESE 6 | ESE 7 | ESE 6 | E 10 | E 15 | E 7 | E 7 | E 8 | E 8 | E 7 | E 6 | E 7 |
5 | 2 | 3 | 2 | 8 | 24 | 16 | 20 | 16 | 18 | 8 | 2 | 4 | 23 | 38 | 41 | 29 | 14 | 7 | 4 | |
Swell 2 Height (m) Direction Period (s) | S 6 | S 4 | E 10 | E 10 | — | — | ESE 10 | E 9 | SW 4 | — | SE 6 | E 15 | E 15 | NE 5 | E 13 | E 13 | E 13 | E 12 | E 12 | E 6 |
3 | 1 | 2 | 2 | — | — | 9 | 7 | 1 | — | 9 | 4 | 4 | 10 | 4 | 4 | 3 | 3 | 3 | 3 | |
Swell 3 Height (m) Direction Period (s) | E 9 | S 6 | S 6 | SSW 6 | — | — | — | — | — | — | E 15 | E 15 | E 15 | E 14 | SE 13 | SE 13 | SE 13 | SE 12 | E 13 | E 12 |
2 | 3 | 1 | 3 | — | — | — | — | — | — | 4 | 4 | 4 | 4 | 7 | 7 | 7 | 6 | 13 | 3 | |
Wind waves Height (m) Direction Period (s) | SSE 4 | — | SE 4 | SSE 3 | S 4 | SSE 4 | SSE 5 | — | NNE 4 | NNE 4 | NNE 6 | NE 6 | NE 6 | — | — | — | SSW 2 | SSW 3 | SSW 4 | SW 4 |
2 | — | 1 | 3 | 22 | 13 | 39 | — | 5 | 9 | 115 | 93 | 56 | — | — | — | 1 | 3 | 25 | 16 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 488 | 618 | 1155 | 1158 | 167 | 340 | 0 | 132 | 139 | 129 | 477 | 104 | 1243 | 312 | 132 | 1139 | 17 | 488 | 1795 | 568 |
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.










