
Surf Forecasts:
Coastguard Beach surf forecast from 11 Sep 2026:
- Most powerful swell: Monday 14 Sep, 8AM (local time) - 2.5ft (0.8m), 6s period, SE 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 0.8m 6s and forecast to arrive on Monday (Sep 14) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Wednesday (Sep 16) at 5PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Mon 14th Sep) | 2.5ft (0.8m) 6s |
Table - best surf conditions forecast for Coastguard Beach over the next 16 days.
The Lowdown
Alright, this is Rusty. Let's look at what we've got for Coastguard Beach over the next couple of weeks. It’s a grim picture, I won’t sugar-coat it. We’ve got a solid run of flat or near-flat conditions and messy winds plaguing this exposed beach break.
Right now and for the next week, we are looking at a long, dry spell. From Friday the 11th right through to Friday the 18th, there's just no surf worth paddling out for. You’d be sitting on your board doing nothing. We're talking tiny waves – mostly under 2 ft – with weak combined swell energy (stuck in the low double digits or even single digits) and onshore or cross-shore breezes messing up what little bump there is. The water temperature feels pretty average for this time of year, nothing unusual to report.
Then, on Friday the 18th of September, things finally wake up. A new swell pushes in from the NE, around 6-6 ft, with a short period of 8 seconds. The energy jumps right up (around 481 on the scale, that’s a lot of power). But here's the kicker – the wind is a moderate cross-onshore, making it choppy. The forecast says “poor surf conditions.” The size is getting into that zone where it's too much for a beginner, and the onshore wind is going to turn it into a bumpy, closed-out mess. This setup looks a whole lot more interesting for the kite surfers than for anyone with a paddle.
After that pulse, it fades back into the doldrums. Saturday the 19th drops to 3-3 ft with light cross-shore wind, but the energy is weak again (84-94). Sunday and Monday the 20th and 21st are blown out by a fresh to strong breeze from the NNE, keeping things lumpy and small.
Tuesday the 22nd has another pulse of NE swell at 4 ft with moderate energy (over 300), but again, it's onshore wind from the east, which is just going to make it a messy, onshore wall. Not the good stuff.
Looking way out to the second week, Friday the 26th of September morning shows a change. A 2 ft swell from the ESE arrives, but with a much longer period of 13 seconds. The wind finally swings offshore from the SW, so that morning session might actually be clean. The energy is moderate (189). It's not a big wave, but after two weeks of junk, clean lines are a win. However, it's a long-range call, so keep your expectations in check.
Honestly, the only faint glimmer of hope in this entire 16-day window is that Friday morning the 26th. If you’re desperate for a clean, tiny longboard wave, it could be your chance. But for proper surf, it’s a frustrating blank run.
Rusty.
Short Range ForecastHeavy rain (total 48mm), heaviest during Sun morning. Warm (max 25°C on Thu night, min 17°C on Fri morning). Winds increasing (calm on Fri night, fresh winds from the SE by Sun morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Sun night, min 15°C on Tue morning). Wind will be generally light. | ||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | ||||||||||||||
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) | SSE 7 | S 7 | S 6 | S 6 | E 10 | SSE 3 | S 4 | ESE 10 | SE 9 | SE 5 | ESE 6 | ESE 6 | ESE 6 | ENE 5 | ESE 5 | ENE 5 | E 6 | E 5 | E 7 |
Wave Graph | |||||||||||||||||||
9 | 8 | 3 | 3 | 2 | 3 | 15 | 9 | 28 | 13 | 14 | 14 | 14 | 19 | 8 | 4 | 6 | 5 | 4 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-on | glassy | on | cross | cross | cross-on | cross-off | off | cross | cross-on | cross-on | on | cross-on | cross-off | cross-off | cross-off | cross-off |
High Tide | 11:35PM3.10m | 12:02PM3.03m | 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 | ||||||
Low Tide | 5:51AM0.17m | 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 | |||||||
— | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | 6:18 | — | — | 6:20 | — | — | |
6:58 | — | 6:57 | — | — | 6:54 | — | — | 6:52 | — | — | 6:51 | — | — | 6:50 | — | — | 6:47 | — | |
mm | — | — | — | — | — | — | — | 32 | 16 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 18 | 19 | 19 | 19 | 19 | 20 | 18 | 21 | 22 | 18 | 18 | 19 | 16 | 16 | 17 | 19 | 21 | 20 |
Feels °C | 23 | 14 | 17 | 18 | 18 | 16 | 17 | 16 | 23 | 23 | 17 | 15 | 16 | 12 | 14 | 14 | 15 | 18 | 17 |
Swell 1 Height (m) Direction Period (s) | SSE 7 | S 7 | N 4 | NNE 4 | SE 6 | E 10 | ESE 10 | ESE 10 | SE 9 | SE 5 | ENE 4 | ESE 6 | ESE 6 | E 9 | ESE 5 | ENE 5 | E 6 | E 5 | ESE 5 |
9 | 8 | 6 | 2 | 1 | 2 | 10 | 9 | 22 | 13 | 5 | 14 | 14 | 2 | 8 | 4 | 6 | 5 | 2 | |
Swell 2 Height (m) Direction Period (s) | SSW 4 | E 9 | S 6 | S 6 | — | — | — | — | — | ESE 9 | ESE 6 | — | E 15 | S 6 | NE 4 | E 9 | E 13 | E 13 | E 7 |
2 | 2 | 3 | 3 | — | — | — | — | — | 8 | 14 | — | 4 | 1 | 5 | 2 | 4 | 4 | 4 | |
Swell 3 Height (m) Direction Period (s) | SE 8 | E 11 | — | — | E 10 | — | — | — | — | — | — | — | E 15 | E 15 | E 10 | E 14 | E 10 | E 10 | E 13 |
3 | 2 | — | — | 2 | — | — | — | — | — | — | — | 4 | 4 | 2 | 4 | 2 | 2 | 3 | |
Wind waves Height (m) Direction Period (s) | NW 4 | N 4 | — | — | — | SSE 3 | S 4 | SSE 4 | SSE 4 | — | N 3 | NNE 4 | NE 4 | ENE 5 | S 6 | S 3 | SSW 3 | SW 4 | SW 4 |
11 | 16 | — | — | — | 3 | 15 | 8 | 28 | — | 5 | 10 | 7 | 19 | 1 | 2 | 8 | 20 | 7 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 136 | 66 | 488 | 205 | 1154 | 1155 | 167 | 138 | 2 | 10 | 167 | 137 | 139 | 477 | 852 | 2447 | 167 | 167 | 412 |
Best forecast wave conditions in Massachusetts | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.










