Surf Forecasts:
Coastguard Beach surf forecast from 13 Aug 2026:
- Most powerful swell: Wednesday 19 Aug, 11PM (local time) - 4ft (1.2m), 5s period, SSE swell with 62 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 1.2m 5s and forecast to arrive on Wednesday (Aug 19) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 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 | 11PM (Wed 19th Aug) | 4ft (1.2m) 5s |
Table - best surf conditions forecast for Coastguard Beach over the next 16 days.
The Lowdown
Right off the bat, I gotta be straight with you: this stretch is looking pretty bleak for anyone wanting to get wet on a surfboard. The next week and a half is mostly dribble and closeouts, with barely a wave worth paddling for. We're seeing a lot of days with tiny, weak swell and the odd period where there's just nothing at all. You might be better off checking the kite forecast, because for a solid run here, this is looking more like a wind sport week than a surf week.
We start things off on Thursday the 13th and through the 14th, it's flat out depressing. Wave heights are down at 0.3ft with energy in the single digits to low teens (7), and the swell direction is all over the place. There's some clean conditions, sure, but with nothing behind them, it's just a nice-looking lake. Friday and the weekend are just as bad, with the swell bouncing between 0.3ft and 3ft but it's short-period junk and the energy is weak, maxing out around the mid-40s (46). It's poor surf, and that's the end of it.
We finally see a glimmer on the 20th, Thursday morning. The swell pushes up to 2ft with a bit more energy behind it (73), and it's clean with a cross-off wind. It's surfable, but honestly, it's ordinary. That’s about as good as it gets for a while. The rest of that week and into the next is more of the same, with poor conditions and tiny surf.
Now, here’s the only thing that even gets my heart rate up. Look at Saturday the 22nd. It’s not a world-beater, but compared to the trash we've been looking at, it's a standout. We're seeing 4ft of south swell with a period of 5 seconds. The energy is moderate at 117, and with a light offshore breeze, it’s clean. This is the pick of the litter. It's still not big, and the short period means it won't have much punch, but it's the only time we get any kind of size and clean conditions.
After that, it's back to square one. From the 23rd through the 27th, it's a mess of small, weak swell and poor conditions. The only other thing that pops is on the 28th, Friday morning, when the energy jumps up to 152 with 3ft of easterly swell, but the conditions are still listed as poor and the swell direction is all wrong. I wouldn't get my hopes up for that.
The water temp is about average for this time of year, so no surprises there. But as for the actual surfing, it's a dry spell. The only window that has any potential is that Saturday the 22nd, and even then, it’s a long way out so don't book the day off work just yet. It's promising, but I'd be keeping my expectations low.
Rusty
Short Range ForecastModerate rain (total 12mm), heaviest on Thu morning. Warm (max 26°C on Thu afternoon, min 19°C on Thu morning). Winds increasing (light winds from the SW on Thu night, fresh winds from the N by Fri night). | Days 5-7 Weather SummaryModerate rain (total 13mm), heaviest on Sun night. Warm (max 23°C on Sun night, min 20°C on Sat night). Winds increasing (light winds from the SSE on Sat night, fresh winds from the S by Sun night). | ||||||||||||||||||
Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | ||||||||||||||
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 14 | E 13 | S 5 | E 13 | E 13 | NNE 4 | NNE 5 | N 5 | NE 4 | E 8 | E 8 | SSW 6 | SSE 7 | SSE 7 | SSE 7 | SE 6 | SE 6 | ESE 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 4 | 4 | 3 | 4 | 3 | 3 | 15 | 37 | 24 | 3 | 1 | 1 | 0 | 41 | 20 | 21 | 6 | 6 | 14 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | on | cross | cross | cross | cross-off | cross-off | cross-off | cross | cross-off | on | cross-on | cross-on | cross-on | cross-on |
High Tide | 11:50PM3.26m | 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 | ||||||
Low Tide | 6:13AM0.02m | 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 | |||||||
 |  |  |  |  |  |  | | |  | | | | | | | | | | |
 | — | 5:45 | — | — | 5:46 | — | — | 5:47 | — | — | 5:48 | — | — | 5:48 | — | — | 5:50 | — | — |
 | 7:44 | — | 7:43 | — | — | 7:40 | — | — | 7:39 | — | — | 7:38 | — | — | 7:37 | — | — | 7:36 | — |
mm | 1 | 7 | 2 | 2 | — | — | — | — | — | — | — | — | 10 | — | — | — | 2 | 1 | — |
Temp °C | 24 | 20 | 26 | 25 | 21 | 23 | 23 | 19 | 19 | 21 | 22 | 22 | 23 | 22 | 21 | 23 | 23 | 23 | 22 |
Feels °C | 22 | 18 | 28 | 27 | 18 | 22 | 21 | 15 | 17 | 19 | 19 | 17 | 24 | 22 | 20 | 24 | 25 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | E 7 | — | E 13 | S 5 | S 5 | N 4 | — | SE 9 | NNE 5 | NE 4 | NE 4 | E 8 | — | SSE 7 | SSE 7 | SSE 7 | SE 6 | SE 6 | SSE 6 |
| kJ | 1 | — | 3 | 4 | 2 | 3 | — | 3 | 12 | 3 | 1 | 1 | — | 41 | 20 | 21 | 6 | 6 | 4 |
Swell 2 Height (m) Direction Period (s) | E 14 | E 7 | E 10 | E 10 | E 10 | E 10 | — | E 12 | SE 9 | SE 7 | S 6 | — | — | — | N 3 | — | S 7 | SE 8 | ESE 12 |
| kJ | 4 | 1 | 2 | 2 | 2 | 2 | — | 3 | 3 | 2 | 1 | — | — | — | 4 | — | 4 | 3 | 14 |
Swell 3 Height (m) Direction Period (s) | E 8 | E 14 | E 7 | E 13 | E 13 | E 13 | E 9 | E 12 | — | E 9 | E 8 | — | — | — | — | E 15 | SE 8 | S 7 | — |
| kJ | 1 | 4 | 1 | 3 | 3 | 3 | 2 | 3 | — | 1 | 1 | — | — | — | — | 5 | 3 | 1 | — |
Wind waves Height (m) Direction Period (s) | SSW 3 | S 3 | SSW 4 | — | N 4 | S 5 | NNE 4 | NNE 5 | N 5 | — | SW 3 | SSW 4 | SSW 6 | NNW 3 | — | — | NNE 3 | NNE 3 | — |
| kJ | 4 | 2 | 13 | — | 8 | 2 | 15 | 37 | 24 | — | 3 | 18 | 109 | 3 | — | — | 3 | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 486 | 611 | 259 | 2456 | 852 | 3482 | 613 | 1808 | 3405 | 1821 | 842 | 1820 | 129 | 99 | 66 | 136 | 139 | 552 | 139 |
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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