
Surf Forecasts:
Coastguard Beach surf forecast from 14 Sep 2026:
- Best quality surf: Monday 21 Sep, 2AM (local time) - 4.5ft (1.3m), 8s period, ENE swell with cross-offshore winds.
- Most powerful swell: Sunday 20 Sep, 8PM (local time) - 5ft (1.5m), 7s period, NE swell with 200 kJ wave energy.
- Next surfable swell (1★+): Monday 21 Sep, 2AM (local time) - 4.5ft (1.3m), 8s period with ENE 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 Monday (Sep 21) at 2AM. The primary swell is predicted to be 1.3m and 8s period with a secondary swell of 0.2m and 6s. Another secondary swell of 0.3m and 10s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Coastguard Beach in the next 16 days are 1.5m 7s and forecast to arrive on Sunday (Sep 20) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 4s period and expected on Sunday (Sep 20) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 21st Sep) | 4.5ft (1.3m) 8s |
| Best Surf | 2AM (Mon 21st Sep) | 4.5ft (1.3m) 8s |
| Most Powerful | 8PM (Sun 20th Sep) | 5ft (1.5m) 7s |
Table - best surf conditions forecast for Coastguard Beach over the next 16 days.
The Lowdown
Alright, surf crew, ol' Rusty here. Let's have a honest look at what's on the table over the next couple of weeks. It's not looking like a classic stretch for our shores, so temper those expectations.
For the first week, we're dealing with a real lack of push. There's a long gap of small, weak surf from Monday the 14th right through to Saturday the 19th. The energy just isn't there, with combined swell energy values sitting in the weak range (16 and below), and what little swell we get is a messy mix of short-period windswell. It's mostly clean, and the winds are often light or cross-offshore, but with waves barely making 1 ft and periods around 5-6 seconds, there's really nothing to get excited about. This is a stretch for the learner crew at Coastguard Beach if they just want to float around, but for anyone looking for a real wave, it's a write-off.
Things start to look a little more interesting around Sunday the 20th. The swell picks up, but the quality gets tricky. By Sunday afternoon, we see a 4 ft NE swell with a combined energy of 108 (moderate), but the wind goes cross-shore and it gets lumpy. Monday the 21st has the most energy we've seen, with a 4 ft ENE swell and combined energy hitting 161, but it's choppy with a cross-onshore wind. Not great.
The standout moment, for what it's worth, looks to be Thursday the 24th of September. That morning sees a 6 ft ESE swell with a period of 9 seconds and combined energy skyrocketing to 510 (strong energy). The swell direction is a close match to the optimum from the SE. However, there's a major caveat: the wind is a strong 25 mph cross-shore, creating messy cross-chop. The afternoon cleans up nicely as the wind swings cross-offshore, but the swell drops to 4 ft. That morning window is really only for the hardcore crew on bigger boards at Coastguard Beach, and only if you can handle the blustery mess. For the rest of us, it's a pass.
After that, the surf fades again into small, weak, and onshore conditions for the final days of September. The 27th has a moment of glassy conditions in the afternoon, but with a 1 ft ESE swell, it's barely a ripple.
Overall, there's no real standout session here that's a must-surf. The 24th has the most grunt, but it's a battle against the wind. Keep an eye on the forecast, because it can't stay this quiet forever.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Mon morning, min 14°C on Mon night). Winds decreasing (fresh winds from the NNW on Mon morning, light winds from the S by Tue night). | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Sat night. Warm (max 21°C on Thu afternoon, min 17°C on Fri night). Winds increasing (calm on Fri night, strong winds from the SSW by Sat night). | ||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | |||||||||||||||
AM | 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) | E 9 | N 5 | NNE 5 | NE 5 | NE 5 | ENE 5 | ENE 5 | E 5 | E 7 | E 7 | E 7 | E 6 | E 12 | E 12 | E 12 | E 7 | E 7 | E 8 | S 5 | NE 6 | ENE 8 |
Wave Graph | |||||||||||||||||||||
8 | 29 | 66 | 41 | 28 | 14 | 7 | 4 | 17 | 16 | 8 | 7 | 11 | 11 | 11 | 9 | 4 | 5 | 8 | 88 | 173 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross | on | cross-on | cross-off | cross-off | cross | cross-off |
High Tide | 2:10PM2.98m | 2:41AM2.72m | 2:53PM2.88m | 3:28AM2.56m | 3:38PM2.75m | 4:17AM2.40m | 4:25PM2.62m | 5:10AM2.27m | 5:18PM2.51m | 6:08AM2.19m | 6:15PM2.45m | 7:09AM2.16m | 7:15PM2.43m | ||||||||
Low Tide | 8:30PM0.31m | 8:41AM0.57m | 9:16PM0.43m | 9:25AM0.73m | 10:05PM0.56m | 10:11AM0.87m | 10:57PM0.69m | 11:02AM0.99m | 11:53PM0.79m | 11:58AM1.07m | 00:53AM0.83m | 12:59PM1.09m | 1:51AM0.83m | ||||||||
6:18 | — | — | 6:18 | — | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | |
— | 6:51 | — | — | 6:50 | — | — | 6:47 | — | — | 6:45 | — | — | 6:44 | — | — | 6:43 | — | — | 6:40 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | 5 | 4 | 1 | — |
Temp °C | 20 | 18 | 19 | 14 | 14 | 14 | 16 | 19 | 19 | 20 | 21 | 21 | 19 | 19 | 20 | 17 | 17 | 21 | 16 | 15 | 16 |
Feels °C | 18 | 12 | 16 | 9 | 11 | 12 | 14 | 16 | 17 | 20 | 21 | 20 | 19 | 18 | 18 | 15 | 14 | 15 | 13 | 10 | 14 |
Swell 1 Height (m) Direction Period (s) | ESE 6 | SE 6 | ESE 7 | SE 6 | SE 9 | ENE 5 | ENE 5 | E 5 | E 7 | E 7 | E 7 | E 6 | E 6 | E 6 | E 7 | E 7 | E 7 | E 8 | S 5 | S 6 | S 6 |
8 | 10 | 4 | 2 | 3 | 14 | 7 | 4 | 17 | 16 | 8 | 7 | 3 | 7 | 10 | 9 | 4 | 5 | 8 | 7 | 3 | |
Swell 2 Height (m) Direction Period (s) | S 6 | ESE 9 | ESE 9 | E 10 | E 15 | E 10 | E 9 | E 7 | E 13 | E 12 | E 12 | N 4 | E 12 | SSW 4 | E 12 | E 12 | E 12 | E 11 | E 8 | E 7 | SE 10 |
2 | 15 | 16 | 2 | 4 | 2 | 2 | 4 | 3 | 3 | 3 | 1 | 11 | 1 | 11 | 3 | 3 | 2 | 5 | 4 | 15 | |
Swell 3 Height (m) Direction Period (s) | E 9 | — | E 15 | E 15 | SSE 7 | E 14 | E 13 | E 13 | SE 13 | — | E 9 | E 12 | E 7 | E 12 | — | — | E 11 | E 11 | E 11 | E 11 | — |
6 | — | 4 | 4 | 4 | 4 | 4 | 4 | 7 | — | 2 | 3 | 1 | 11 | — | — | 2 | 2 | 2 | 9 | — | |
Wind waves Height (m) Direction Period (s) | NNW 4 | N 5 | NNE 5 | NE 5 | NE 5 | — | — | SSW 2 | SW 3 | WSW 3 | SSW 3 | SW 3 | SW 3 | — | — | — | S 2 | S 4 | NNW 4 | NE 6 | ENE 8 |
22 | 29 | 66 | 41 | 28 | — | — | 1 | 1 | 1 | 1 | 2 | 4 | — | — | — | 1 | 48 | 17 | 88 | 173 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 319 | 139 | 167 | 486 | 611 | 611 | 1148 | 1148 | 205 | 10 | 887 | 568 | 205 | 241 | 816 | 848 | 613 | 866 | 139 | 104 | 0 |
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.










