Surf Forecasts:
Coastguard Beach surf forecast from 16 Sep 2026:
- Most powerful swell: Tuesday 22 Sep, 8PM (local time) - 4.5ft (1.4m), 8s period, ENE swell with 210 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 1.4m 8s and forecast to arrive on Tuesday (Sep 22) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Saturday (Sep 19) at 5AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Tue 22nd Sep) | 4.5ft (1.4m) 8s |
Table - best surf conditions forecast for Coastguard Beach over the next 16 days.
The Lowdown
Alright, let me have a look at what we’ve got here. This is a pretty bleak run for Coastguard Beach over the next two and a half weeks. There’s a lot of small, messy, wind-affected days with very little to get excited about. The combined wave energy is mostly weak, often under 100 (like 10, 25, 31) or just into moderate territory in the middle of the period, but the wind’s always on it. The water temp is about average for this time of year, nothing to write home about.
The first surf worth even a mention doesn’t show until September 26th – that’s a solid ten-day wait with nothing. On Saturday the 26th, the morning has 0.7m (about 2ft) of east swell at 9 seconds out of the SSW, and the word “surfable but very ordinary” says it all. The combined energy is just 74. There’s a brief flash of hope on Sunday the 27th morning – that westerly wind goes offshore, glassy clean, with 0.8m (about 3ft) east swell at 8 seconds. Combined energy 92. It’s small, but if you’re desperate and the break is consistent, you might find a knee-high wave. The crowds? Could happen. It’s a beginner-friendly spot.
Then it goes back to rubbish until October 1st. That Thursday morning is the one stand-out – a real long shot, but promising. You’ve got 0.8m (about 3ft) of swell from the SE, but the period jumps to 12 seconds – that’s groundswell – and combined energy rockets to 221. And the wind? Dead glassy. That’s rare. That means clean, lined-up waves, even if the size is modest. For a beach break, that long period might make things a bit straight, but with glassy conditions and the swell direction matching the optimum (SE), it could actually be a fun little session. Best of the whole 16 days by a mile.
So the bottom line: one tiny window on the 27th morning for a clean knee-high wave, and then a bigger promise on October 1st – glassy, groundswell, good energy. The rest? Honestly, it’s a long, flat, windy stretch. For kite surfing, some of those cross-onshore days with 3ft to 5ft and strong breeze could be more interesting than paddle surfing.
Rusty out.
Short Range ForecastMostly dry. Warm (max 23°C on Fri afternoon, min 14°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 25mm), heaviest during Sun night. Very mild (max 18°C on Fri night, min 12°C on Sat morning). Winds increasing (light winds from the NE on Sat afternoon, strong winds from the NE by Mon afternoon). | ||||||||||||||||||
Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | ||||||||||||||
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 5 | ENE 5 | ENE 7 | ENE 8 | ENE 7 | E 7 | E 8 | E 12 | E 12 | NNE 6 | NE 6 | NE 6 | NE 5 | SE 3 | ESE 4 | E 5 | ENE 6 | ENE 6 | ENE 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 9 | 4 | 17 | 20 | 17 | 15 | 10 | 11 | 11 | 127 | 73 | 49 | 13 | 2 | 15 | 42 | 114 | 155 | 163 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on |
High Tide | 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 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 16 | 4 | 2 | 1 |
Temp °C | 14 | 15 | 19 | 20 | 21 | 22 | 21 | 21 | 23 | 18 | 12 | 12 | 14 | 14 | 14 | 16 | 15 | 15 | 15 |
Feels °C | 13 | 14 | 16 | 19 | 21 | 22 | 22 | 21 | 20 | 11 | 6 | 7 | 10 | 11 | 10 | 13 | 9 | 9 | 8 |
Swell 1 Height (m) Direction Period (s) | ENE 5 | ENE 5 | ENE 7 | ENE 8 | ENE 7 | E 7 | E 8 | E 7 | E 7 | E 12 | E 8 | NE 6 | NE 5 | ENE 5 | NE 4 | S 6 | S 6 | E 17 | E 15 |
| kJ | 9 | 4 | 17 | 20 | 17 | 15 | 10 | 8 | 8 | 11 | 5 | 49 | 13 | 2 | 1 | 1 | 7 | 6 | 4 |
Swell 2 Height (m) Direction Period (s) | SE 10 | E 9 | E 13 | E 13 | E 12 | E 12 | ENE 6 | SSW 4 | S 5 | — | E 12 | E 7 | E 7 | E 7 | NE 4 | — | — | S 6 | — |
| kJ | 4 | 2 | 4 | 3 | 3 | 3 | 4 | 3 | 2 | — | 3 | 4 | 4 | 1 | 1 | — | — | 3 | — |
Swell 3 Height (m) Direction Period (s) | E 14 | E 13 | E 13 | SE 13 | SE 9 | E 13 | E 12 | E 12 | E 12 | E 12 | E 11 | E 11 | E 11 | E 10 | — | — | — | — | — |
| kJ | 4 | 4 | 4 | 7 | 3 | 13 | 3 | 11 | 11 | 11 | 2 | 2 | 2 | 2 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | SW 3 | SW 3 | SSW 3 | SSW 3 | SW 3 | — | — | NNE 6 | NE 6 | — | — | SE 3 | ESE 4 | E 5 | ENE 6 | ENE 6 | ENE 7 |
| kJ | — | — | 2 | 1 | 1 | 4 | 5 | — | — | 127 | 73 | — | — | 2 | 15 | 42 | 114 | 155 | 163 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 613 | 488 | 852 | 11 | 10 | 10 | 17 | 167 | 205 | 167 | 64 | 1155 | 679 | 761 | 322 | 754 | 340 | 337 | 142 |
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.
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