Surf Forecasts:
Coastguard Beach surf forecast from 10 Sep 2026:
- Most powerful swell: Sunday 13 Sep, 8PM (local time) - 3ft (0.9m), 5s period, SSE swell with 39 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 0.9m 5s and forecast to arrive on Sunday (Sep 13) at 8PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 5s 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 | 8PM (Sun 13th Sep) | 3ft (0.9m) 5s |
Table - best surf conditions forecast for Coastguard Beach over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s get straight to it – this 16-day stretch for Coastguard Beach is looking mostly flat. There’s a long dry spell of tiny, weak surf ahead, so don’t expect much action.
Starting Thursday 10 September: clean cross-off wind from the WSW at 16 mph, but the swell is a measly 0.3ft out of the E at 10 seconds. Energy is basically nil (4). Friday 11 September: 1ft S swell Friday morning, short period of 7 seconds, cross-off wind – still flat. Saturday 12 September brings glassy conditions in the morning, 0.7ft SSE swell at 6 seconds – you’re floating, not surfing.
Sunday 13 September sees a little lift: 3ft S swell (27 energy) but onshore SE wind at 16 mph makes it choppy. Monday 14 and Tuesday 15 stay tiny, with cross and cross-on winds. Water temp is 66°, about average for this time of year.
There’s a gap of almost no decent surf until Wednesday 24 September. That morning, we finally see something: 4ft SE swell at 8 seconds, energy 239, and clean NNW wind at 13 mph. It’s borderline, but the best so far. The afternoon gets even better: 5ft SE swell at 8 seconds, offshore WNW wind at 6 mph, energy jumps to 304. This is the standout. Clean, with some push – perfect for those ready to grab a few.
Friday 25 September returns to small, onshore slop. Bottom line: mostly flat, with one promising window on the 24th. If you’re into kites, those windy, choppy afternoons might work, but for paddle surfing, mark that Thursday.
Rusty out.
Short Range ForecastMostly dry. Warm (max 27°C on Thu afternoon, min 18°C on Fri morning). Winds decreasing (strong winds from the WSW on Thu morning, calm by Sat morning). | Days 4-6 Weather SummaryModerate rain (total 19mm), heaviest on Sun afternoon. Warm (max 22°C on Sun night, min 15°C on Tue morning). Mainly fresh winds. | ||||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | |||||||||||||||
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 10 | SE 10 | SSE 7 | S 7 | S 6 | S 6 | SSE 6 | SSE 3 | S 4 | S 4 | SSE 5 | SSE 5 | SE 6 | SE 6 | NE 4 | ENE 5 | ENE 4 | S 4 | E 13 | E 13 | E 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2 | 4 | 15 | 8 | 3 | 3 | 4 | 2 | 21 | 18 | 37 | 13 | 18 | 9 | 24 | 31 | 12 | 9 | 4 | 4 | 3 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | off | cross-off | on | cross-off | glassy | cross | cross | cross-on | cross-on | off | cross | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | cross-off |
High Tide | 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 | 2:53PM2.88m | 3:28AM2.56m | 3:38PM2.75m | 4:17AM2.40m | |||||||
Low Tide | 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 | 8:41AM0.57m | 9:16PM0.43m | 9:25AM0.73m | 10:05PM0.56m | ||||||||
 |  |  | | |  | | | |  |  | | | | | | | | | | | |
 | 6:13 | — | — | 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 | — | — | — | — | — | — | — | — | — | 8 | 11 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 23 | 27 | 26 | 19 | 19 | 19 | 19 | 20 | 21 | 19 | 19 | 22 | 21 | 19 | 20 | 15 | 16 | 18 | 20 | 21 | 21 |
Feels °C | 21 | 26 | 24 | 16 | 18 | 18 | 18 | 18 | 19 | 17 | 19 | 22 | 20 | 17 | 16 | 12 | 13 | 16 | 17 | 17 | 19 |
Swell 1 Height (m) Direction Period (s) | E 10 | SE 10 | SSE 7 | S 7 | N 4 | NNE 4 | SSE 6 | E 10 | ESE 10 | ESE 10 | ESE 10 | SSE 5 | SE 6 | SE 6 | SE 6 | NE 5 | ENE 4 | NE 5 | ENE 4 | E 6 | E 13 |
| kJ | 2 | 4 | 15 | 8 | 5 | 2 | 4 | 2 | 10 | 9 | 9 | 13 | 18 | 9 | 6 | 25 | 12 | 3 | 2 | 1 | 3 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | SW 4 | E 9 | S 6 | S 6 | S 7 | — | — | — | — | ESE 9 | — | E 9 | ESE 9 | SE 6 | E 9 | E 9 | E 9 | E 10 | E 9 |
| kJ | 1 | 1 | 3 | 2 | 3 | 3 | 1 | — | — | — | — | 8 | — | 7 | 17 | 1 | 2 | 2 | 2 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | E 8 | SE 7 | E 10 | E 11 | SE 4 | — | E 10 | — | — | — | — | — | — | — | E 15 | E 9 | E 15 | E 14 | E 13 | E 13 | ESE 6 |
| kJ | 1 | 2 | 2 | 2 | 1 | — | 2 | — | — | — | — | — | — | — | 4 | 7 | 4 | 4 | 4 | 4 | 3 |
Wind waves Height (m) Direction Period (s) | SW 5 | SSW 4 | NW 4 | N 4 | — | — | — | SSE 3 | S 4 | S 4 | SSE 5 | SSW 5 | NNW 3 | NNE 3 | NE 4 | ENE 5 | SSE 3 | S 4 | S 4 | SSW 4 | SSW 5 |
| kJ | 59 | 34 | 9 | 10 | — | — | — | 2 | 21 | 18 | 37 | 15 | 6 | 4 | 24 | 31 | 1 | 9 | 13 | 29 | 52 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 134 | 167 | 103 | 186 | 308 | 205 | 620 | 486 | 167 | 186 | 136 | 10 | 167 | 139 | 611 | 2733 | 929 | 990 | 373 | 129 | 757 |
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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