Surf Forecasts:
Coastguard Beach surf forecast from 13 Aug 2026:
- Most powerful swell: Monday 17 Aug, 8AM (local time) - 4.5ft (1.4m), 7s period, SSW swell with 207 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 7s and forecast to arrive on Monday (Aug 17) at 8AM. 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 Monday (Aug 17) at 2AM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Mon 17th Aug) | 4.5ft (1.4m) 7s |
Table - best surf conditions forecast for Coastguard Beach over the next 16 days.
The Lowdown
Alright, Rusty here, and I'm looking at the charts for the next couple of weeks. Honestly, it’s a tough stretch for our local waters. We’ve got a long, dry spell on the cards, and it’s going to take a while before there’s anything worth paddling out for.
The first few days are a total write-off. We're looking at tiny, gutless dribble with next to no energy, and the swell direction is all wrong. You’re better off leaving the board in the truck.
We don’t really see anything start to move until Thursday, August 27th. That's the first time the swell shows any real life, with the combined swell energy climbing into moderate territory (102). We'll see some 4ft swell from the NE pushing in, but it's short period stuff, and the wind is cross-onshore, which will chop things up. That’s a session for the die-hards only, with a bit of size but not much quality.
Friday the 28th drops back off again, with the swell fading and the energy dropping back to 81 or less.
So, a few of us might get a look at Coastguard Beach on the 27th, but for the rest of the 16-day outlook? It’s a long, long wait. Still, these things can turn around quick, and forecasts have a way of finding a pulse when you least expect it. Keep an eye on the horizon.
Rusty.
Short Range ForecastLight rain (total 9mm), mostly falling on Thu morning. Warm (max 25°C on Thu afternoon, min 19°C on Thu morning). Mainly fresh winds. | Days 4-6 Weather SummaryHeavy rain (total 34mm), heaviest during Sun night. Warm (max 23°C on Sun morning, min 20°C on Sun night). Winds decreasing (strong winds from the S on Sun night, light winds from the SE by Mon night). | ||||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | Wednesday 19 | |||||||||||||||
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 14 | E 13 | E 13 | E 13 | E 13 | N 4 | N 5 | SE 9 | E 9 | E 9 | E 8 | S 6 | SSE 7 | SE 7 | SE 6 | SE 7 | SE 6 | ESE 11 | ESE 10 | ESE 10 | S 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 4 | 3 | 4 | 3 | 3 | 16 | 22 | 3 | 2 | 1 | 1 | 0 | 37 | 26 | 10 | 11 | 10 | 13 | 11 | 9 | 28 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross | cross-off | cross | cross-on | on | on | cross-on | cross-off | cross-off | off |
High Tide | 12:26PM3.00m | 00:42AM3.24m | 1:14PM3.05m | 1:32AM3.15m | 2:00PM3.04m | 2:21AM3.01m | 2:46PM2.99m | 3:10AM2.83m | 3:32PM2.89m | 4:00AM2.64m | 4:19PM2.78m | 4:52AM2.46m | 5:08PM2.66m | ||||||||
Low Tide | 6:29PM0.23m | 7:01AM0.04m | 7:20PM0.21m | 7:48AM0.13m | 8:10PM0.24m | 8:33AM0.26m | 9:00PM0.32m | 9:18AM0.43m | 9:50PM0.44m | 10:04AM0.62m | 10:42PM0.56m | 10:51AM0.79m | 11:37PM0.68m | ||||||||
 |  |  |  |  |  | | | | |  |  | | | | | |  | | |  | |
 | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — | 5:50 | — | — |
 | — | 7:43 | — | — | 7:40 | — | — | 7:39 | — | — | 7:38 | — | — | 7:37 | — | — | 7:36 | — | — | 7:34 | — |
mm | 5 | 3 | 1 | — | — | — | — | — | — | — | — | 32 | 1 | — | — | — | — | 1 | 1 | — | — |
Temp °C | 21 | 25 | 25 | 20 | 23 | 24 | 19 | 20 | 21 | 23 | 23 | 23 | 21 | 21 | 21 | 21 | 21 | 21 | 24 | 26 | 24 |
Feels °C | 20 | 26 | 26 | 16 | 21 | 23 | 14 | 19 | 19 | 21 | 19 | 23 | 20 | 20 | 22 | 20 | 20 | 21 | 26 | 25 | 22 |
Swell 1 Height (m) Direction Period (s) | NNW 3 | E 13 | SSW 4 | S 5 | N 4 | SSW 5 | SE 9 | NNE 4 | NNE 4 | E 9 | E 8 | — | SSE 7 | SE 7 | SE 6 | SE 7 | SE 6 | SE 6 | ESE 10 | ESE 10 | ESE 9 |
| kJ | 1 | 3 | 4 | 2 | 3 | 2 | 3 | 11 | 1 | 1 | 1 | — | 37 | 26 | 10 | 11 | 10 | 6 | 11 | 9 | 8 |
Swell 2 Height (m) Direction Period (s) | E 7 | E 10 | E 10 | E 10 | E 10 | E 9 | — | SE 9 | SE 7 | S 6 | — | — | SSW 8 | N 4 | SSW 8 | SE 8 | NNE 4 | ESE 11 | — | — | — |
| kJ | 1 | 2 | 2 | 2 | 2 | 2 | — | 3 | 2 | 1 | — | — | 12 | 4 | 6 | 3 | 3 | 13 | — | — | — |
Swell 3 Height (m) Direction Period (s) | E 14 | E 7 | E 13 | E 13 | E 13 | — | — | — | E 9 | NE 4 | — | — | WSW 4 | SSW 8 | SE 8 | SW 7 | SE 8 | — | — | — | — |
| kJ | 4 | 1 | 3 | 3 | 3 | — | — | — | 2 | 1 | — | — | 1 | 12 | 3 | 2 | 3 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 2 | SSW 4 | NW 3 | NNW 4 | S 5 | N 4 | N 5 | — | — | SW 3 | SSW 4 | S 6 | NW 3 | — | NNW 3 | NNE 3 | — | — | SSE 6 | S 3 | S 4 |
| kJ | 1 | 16 | 2 | 14 | 2 | 16 | 22 | — | — | 2 | 25 | 170 | 6 | — | 2 | 4 | — | — | 6 | 8 | 28 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2465 | 205 | 2456 | 910 | 3482 | 613 | 990 | 488 | 1808 | 1686 | 2417 | 375 | 99 | 66 | 139 | 139 | 238 | 139 | 180 | 491 | 10 |
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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