
Surf Forecasts:
Coastguard Beach surf forecast from 15 Sep 2026:
- Most powerful swell: Tuesday 22 Sep, 2PM (local time) - 5ft (1.5m), 7s period, ENE swell with 192 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 1.5m 7s and forecast to arrive on Tuesday (Sep 22) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Friday (Sep 18) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2PM (Tue 22nd Sep) | 5ft (1.5m) 7s |
Table - best surf conditions forecast for Coastguard Beach over the next 16 days.
The Lowdown
Alright, folks, let’s get into it. Coastguard’s been flat as a pancake for days, a real test of patience. But I’m looking at the charts and there are a few little pulses of energy trying to get their act together. It’s going to be a quiet run until the end of the month, so don’t be in a rush to get wet unless you’re happy on a log cruising tiny rip bowls.
The start of this stretch has nothing worth suiting up for. We’re stuck in a run of tiny, weak, and mostly junky conditions. Just a lot of cross and onshore chop messing with what little push there is. There’s a window around the 21st where a bit more swell rolls in, but it’s coming with a strong cross-onshore wind, so the surface is going to be lumpy and basically a write-off. The following week is all about light offshore breezes but with almost no swell. You’d be scratching for knee-high dribblers on a good day.
Now, here’s the one real highlight, and it’s a long way out. On the 24th, we finally get a pulse of combo swell that pushes the energy into the moderate zone (104 units in the morning, getting up to 128 units by the afternoon). The wave heights jump to chest high, in the 4ft to 4.5ft range, coming from the ESE. The period is only around 6 to 7 seconds, so it’s a bit of a messy, windswelly thing, not a clean groundswell. But with a light offshore wind in the morning, it will likely be the most clean and rideable it’s been in ages. It won’t be perfect, but it’s surf.
The real spike, and the one true standout of the whole 16-day run, hits on the 30th. The energy jumps into a whole new league (1137 units in the morning, 1281 by the afternoon), and the swell comes up to a solid 8ft. The direction is clean out of the NE, and the period stretches out to a longer 9-10 seconds. This is the real deal. It will be powerful and pushy, but still, the wind stays cross, which isn't ideal. This is not a beginner wave – at 8ft it’s definitely in expert territory, and the short period for that size means it will be walled-up and thick. You want to be at a break that can handle that kind of raw, east energy. The water is at 66.2°, which is right near normal for this time of year, so no surprises there.
I wouldn’t bother with the rest, honestly. There’s some stuff around the 29th that might offer a clean but smaller wave (3ft to 5ft), but the wind is inconsistent. The 30th is definitely the day to circle on the calendar if you’ve got the skills and the guts. Everything else is flat, junky, or both.
Short Range ForecastLight rain (total 2mm), mostly falling on Thu night. Warm (max 22°C on Thu afternoon, min 14°C on Tue afternoon). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 30mm), heaviest during Mon morning. Very mild (max 19°C on Fri afternoon, min 13°C on Fri night). Winds decreasing (fresh winds from the NNE on Fri night, light winds from the ENE by Sat afternoon). | |||||||||||||||||||
Tue 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | ||||||||||||||
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) | NE 5 | ENE 5 | ENE 5 | ENE 7 | E 7 | E 7 | E 13 | E 7 | E 12 | E 7 | NNE 5 | NE 6 | NE 6 | NE 5 | ENE 5 | E 9 | SE 11 | E 5 | E 5 | ENE 6 |
Wave Graph | ||||||||||||||||||||
24 | 9 | 4 | 16 | 16 | 15 | 13 | 8 | 11 | 8 | 67 | 73 | 34 | 13 | 4 | 6 | 29 | 51 | 92 | 145 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-on | on | cross | cross | cross-on | on | on | on | cross-on |
High Tide | 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 | 8:06AM2.20m | 8:12PM2.47m | |||||||
Low Tide | 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 | 1:58PM1.04m | 2:43AM0.78m | |||||||
— | — | 6:20 | — | — | 6:20 | — | — | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | |
6:50 | — | — | 6:47 | — | — | 6:45 | — | — | 6:44 | — | — | 6:43 | — | — | 6:40 | — | — | 6:38 | — | |
mm | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | 1 | 2 | 4 | 23 | 9 | 3 |
Temp °C | 14 | 14 | 16 | 19 | 20 | 21 | 22 | 21 | 20 | 19 | 19 | 13 | 13 | 14 | 15 | 15 | 16 | 16 | 17 | 17 |
Feels °C | 10 | 13 | 14 | 16 | 19 | 21 | 21 | 20 | 20 | 17 | 13 | 8 | 9 | 10 | 12 | 13 | 15 | 12 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | ESE 10 | ENE 5 | ENE 5 | ENE 7 | E 7 | E 7 | E 7 | E 7 | SSW 4 | E 7 | E 8 | E 8 | NE 6 | NE 5 | ENE 5 | E 9 | — | S 6 | ESE 10 | S 6 |
9 | 9 | 4 | 16 | 16 | 15 | 8 | 8 | 3 | 8 | 5 | 4 | 34 | 13 | 4 | 6 | — | 1 | 9 | 12 | |
Swell 2 Height (m) Direction Period (s) | E 15 | SE 10 | E 9 | E 13 | E 13 | E 12 | E 12 | E 12 | E 7 | NNW 3 | E 12 | E 12 | E 7 | E 8 | E 7 | NE 4 | SE 11 | SW 6 | SSW 6 | E 15 |
4 | 4 | 2 | 4 | 3 | 3 | 3 | 3 | 8 | 1 | 11 | 3 | 4 | 5 | 4 | 1 | 29 | 1 | 3 | 4 | |
Swell 3 Height (m) Direction Period (s) | SSE 7 | E 14 | E 13 | SE 10 | SE 13 | SE 12 | E 13 | SE 4 | E 12 | SSW 5 | — | — | E 11 | E 11 | E 9 | E 11 | — | — | — | — |
4 | 4 | 4 | 4 | 7 | 6 | 13 | 1 | 11 | 2 | — | — | 2 | 2 | 2 | 2 | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NE 5 | — | — | SW 2 | SW 3 | SSW 3 | S 3 | SW 4 | NNW 2 | NNE 3 | NNE 5 | NE 6 | — | — | — | ESE 4 | ESE 3 | E 5 | E 5 | ENE 6 |
24 | — | — | 2 | 1 | 1 | 5 | 10 | 1 | 1 | 67 | 73 | — | — | — | 2 | 6 | 51 | 92 | 145 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 3520 | 613 | 611 | 1148 | 486 | 10 | 132 | 486 | 205 | 205 | 167 | 64 | 313 | 602 | 754 | 333 | 273 | 157 | 297 | 106 |
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.










