
Surf Forecasts:
Coastguard Beach surf forecast from 8 Sep 2026:
- Most powerful swell: Thursday 10 Sep, 11PM (local time) - 2ft (0.6m), 7s period, S swell with 38 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 0.6m 7s and forecast to arrive on Thursday (Sep 10) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Thursday (Sep 10) at 8AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Thu 10th Sep) | 2ft (0.6m) 7s |
Table - best surf conditions forecast for Coastguard Beach over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s talk about what’s cookin’ for the next couple of weeks.
To be straight with you, this is a rough stretch. The surf forecast for the next 16 days is pretty much a write-off for quality waves. The only break on the radar is Coastguard Beach, and even that’s a struggle. From now until the 20th of September, it’s going to be a long, quiet grind. We’re talking over a week of barely a ripple. The energy levels are just sad – mostly reading between 3 and 59 (weak energy), with a few days hitting the 100-200 range later on, but it’s all messy.
Let’s break it down. The first real pulse of note comes on Sunday, the 20th of September. The swell picks up to about 5ft from the NE, with a combined energy of 180 (moderate energy). The wind is a cross-shore from the NNE, which will leave it a bit choppy. It’s not great, but it’s the first sign of life. The period is a short 7 seconds, so these are just windswells – not the kind that make you want to paddle out at dawn.
Monday the 21st is similar, with a 4ft NE swell, still short period.
Then, the most interesting window appears on Tuesday, the 22nd of September. The swell builds to about 5ft from the E, with a combined energy of 240 (moderate energy). The wind swings around to a cross-off from the S, which is a big deal. The afternoon session on Tuesday actually gets a “marginal” rating, which is the best we’ll see all forecast. The swell is still short period (7 seconds), so it won’t be a classic groundswell, but that clean wind will make it the most surfable day of the whole run. The size is still manageable for intermediate surfers, but at 5ft, beginners might find it a bit punchy.
Crowds at Coastguard Beach are listed as “sometimes,” so don’t expect to have it to yourself if it’s the only game in town.
The water temp is about 67°F, which is pretty average for the time of year, nothing to write home about.
Honestly, if you’re a kite surfer, this whole setup might look more interesting than for a paddle surfer, especially on those days with strong cross-off winds and some bump. For the rest of us, it’s a waiting game. The single standout is the Tuesday afternoon session on the 22nd. It’s not a world-class day, but it’s the best we’ve got.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Thu morning. Warm (max 25°C on Thu afternoon, min 17°C on Fri morning). Winds increasing (light winds from the SE on Tue night, strong winds from the SW by Wed night). | Days 5-7 Weather SummaryMostly dry. Warm (max 21°C on Mon morning, min 17°C on Fri afternoon). Wind will be generally light. | |||||||||||||||||||
Tue 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | ||||||||||||||
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) | ENE 9 | ENE 9 | SSE 4 | S 4 | SE 9 | E 10 | E 10 | S 7 | SSE 7 | SSE 7 | S 7 | E 4 | SSW 6 | ESE 10 | S 4 | SSE 4 | S 5 | E 9 | SE 5 | E 9 |
Wave Graph | ||||||||||||||||||||
8 | 8 | 19 | 20 | 3 | 2 | 2 | 26 | 9 | 9 | 9 | 3 | 4 | 10 | 10 | 22 | 34 | 7 | 7 | 7 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-off | on | cross-on | cross | cross | cross-off | cross-off | cross-off | glassy | on |
High Tide | 9:49PM3.02m | 10:27AM2.82m | 10:44PM3.08m | 11:16AM2.94m | 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 | |||||||
Low Tide | 3:34PM0.53m | 4:14AM0.24m | 4:30PM0.39m | 5:04AM0.18m | 5:23PM0.28m | 5:51AM0.17m | 6:12PM0.21m | 6:35AM0.21m | 6:59PM0.19m | 7:17AM0.30m | 7:45PM0.22m | 7:59AM0.42m | 8:30PM0.31m | |||||||
— | — | 6:13 | — | — | 6:13 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:18 | — | — | |
7:01 | — | — | 7:00 | — | — | 6:58 | — | — | 6:57 | — | — | 6:54 | — | — | 6:52 | — | — | 6:51 | — | |
mm | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 21 | 21 | 21 | 22 | 22 | 22 | 25 | 24 | 18 | 17 | 18 | 18 | 18 | 18 | 20 | 20 | 20 | 21 | 23 | 22 |
Feels °C | 19 | 19 | 18 | 19 | 20 | 18 | 24 | 23 | 16 | 12 | 15 | 16 | 15 | 15 | 17 | 17 | 19 | 20 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | N 3 | ENE 9 | ENE 9 | NE 9 | SE 9 | E 10 | E 10 | S 7 | SSE 7 | NE 5 | S 7 | N 3 | NNE 4 | SSE 4 | ESE 10 | ESE 10 | SSE 4 | SSE 4 | SE 5 | SE 6 |
2 | 8 | 8 | 3 | 3 | 2 | 2 | 26 | 9 | 5 | 9 | 1 | 1 | 5 | 9 | 9 | 15 | 7 | 6 | 5 | |
Swell 2 Height (m) Direction Period (s) | ENE 9 | — | — | E 10 | E 8 | E 8 | E 8 | SW 4 | E 9 | NNW 4 | SE 9 | SE 6 | E 10 | ESE 10 | — | — | ESE 9 | E 9 | E 9 | E 9 |
8 | — | — | 2 | 1 | 1 | 1 | 3 | 2 | 3 | 3 | 1 | 2 | 10 | — | — | 8 | 7 | 7 | 7 | |
Swell 3 Height (m) Direction Period (s) | SE 8 | SW 4 | — | — | — | E 8 | — | SE 10 | E 9 | SSE 7 | E 11 | E 10 | SSW 6 | — | — | — | — | — | E 16 | E 15 |
3 | 1 | — | — | — | 1 | — | 4 | 1 | 9 | 2 | 2 | 4 | — | — | — | — | — | 5 | 4 | |
Wind waves Height (m) Direction Period (s) | NNW 4 | SSE 2 | SSE 4 | S 4 | SSW 5 | SSW 5 | SSW 5 | NW 4 | NNW 4 | — | NNE 4 | E 4 | SSE 3 | — | S 4 | SSE 4 | S 5 | — | NNE 3 | NE 3 |
3 | 1 | 19 | 20 | 80 | 83 | 74 | 9 | 27 | — | 3 | 3 | 3 | — | 10 | 22 | 34 | — | 2 | 3 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 613 | 808 | 2608 | 910 | 929 | 129 | 393 | 66 | 138 | 66 | 205 | 620 | 477 | 167 | 308 | 180 | 356 | 167 | 887 | 139 |
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.










