Surf Forecasts:
Coastguard Beach surf forecast from 19 Aug 2026:
- Most powerful swell: Sunday 23 Aug, 8PM (local time) - 4ft (1.2m), 6s period, S swell with 92 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 6s and forecast to arrive on Sunday (Aug 23) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 6s period and expected on Sunday (Aug 23) at 11PM.
| Wave Type | Time (EDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Sun 23rd Aug) | 4ft (1.2m) 6s |
Table - best surf conditions forecast for Coastguard Beach over the next 16 days.
The Lowdown
Alright, I’ve looked at what’s coming for us over the next couple of weeks. I’ll be honest with you, mate, it’s a tough run. The swell is tiny, and the wind is all over the shop. You’ll be waiting a good while for anything that’s even worth a look.
The first real chance to get a board wet doesn’t come until Thursday, the 27th of August. And even then, it’s a bit of a trade-off. A little pulse of energy pushes through with a combined swell energy of 158, so there’s something to work with, but that comes with a strong southerly breeze at 25 mph which will mess things up. The wind is cross-shore, so it’s not going to be clean. The swell is showing as 5ft from the ESE with a short 6-second period, so it’s going to be soft and messy. This one is really more for the kite crew than us paddle surfers, especially at a beach break like Coastguard Beach.
If you’ve got patience, the best window we’ve got is at the very end of the run. On Saturday, the 29th of August, we finally get a proper offshore breeze. The wind swings to the west, blowing at 9 mph, giving us that clean, lined-up look. The swell is tiny, only 2ft from the SE with a 7-second period, so it’s not going to be a world-beater, but it’s about as good as it gets. The water’s sitting at 70°, which is about 2° warmer than normal for this time of year, so pretty comfortable.
Sunday the 30th of August has a slight bump in swell height to 2ft from the NE, but the period is only 4 seconds and the wind goes cross-shore in the afternoon, so it’s a short-lived window.
Other than that, we’ve got a long stretch of small, wind-affected, or onshore slop from Wednesday the 19th all the way through to about Wednesday the 26th of August. The 31st of August has a clean cross-off breeze but again, tiny swell at 1ft. The first few days of September are looking blown out and messy too.
It’s a lean period, no doubt. The swell energy is consistently weak, mostly sitting in the single or double digits, only spiking slightly on the 27th. The consistency is there, but it’s always small. We’ll just have to wait for a change in the forecast.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu afternoon. Warm (max 26°C on Thu afternoon, min 19°C on Fri morning). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 43mm), heaviest during Sat night. Warm (max 24°C on Mon afternoon, min 18°C on Sun morning). Winds decreasing (fresh winds from the E on Sat night, light winds from the NNW by Mon night). | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
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) | ESE 6 | ESE 6 | ESE 6 | ESE 7 | E 8 | ESE 7 | ESE 8 | ESE 8 | E 8 | E 4 | E 5 | E 5 | ESE 6 | SSE 5 | S 6 | E 12 | SE 6 | SW 4 | ESE 6 | ESE 6 | SE 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 16 | 8 | 7 | 21 | 10 | 10 | 14 | 22 | 30 | 25 | 33 | 13 | 12 | 37 | 18 | 11 | 10 | 4 | 5 | 3 | 4 |
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 | off | cross-on | cross-on | cross-on | on | on | cross-on | cross-off | cross-on | off | cross-off | cross-off | cross-off | glassy | cross | cross |
High Tide | 5:08PM2.66m | 5:47AM2.31m | 6:01PM2.56m | 6:46AM2.21m | 6:57PM2.51m | 7:46AM2.18m | 7:54PM2.50m | 8:43AM2.20m | 8:48PM2.55m | 9:33AM2.27m | 9:38PM2.62m | 10:18AM2.36m | 10:23PM2.70m | ||||||||
Low Tide | 10:51AM0.79m | 11:37PM0.68m | 11:42AM0.93m | 00:34AM0.76m | 12:38PM1.01m | 1:34AM0.80m | 1:35PM1.04m | 2:31AM0.78m | 2:31PM1.02m | 3:22AM0.72m | 3:23PM0.95m | 4:08AM0.64m | 4:10PM0.85m | 4:49AM0.56m | |||||||
 | |  | |  | | |  |  | |  |  |  | | | | | | | | | |
 | 5:50 | — | — | 5:52 | — | — | 5:52 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — |
 | — | 7:34 | — | — | 7:32 | — | — | 7:30 | — | — | 7:30 | — | — | 7:28 | — | — | 7:25 | — | — | 7:24 | — |
mm | — | — | — | — | 1 | — | — | — | — | — | 2 | 41 | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 24 | 25 | 26 | 20 | 20 | 21 | 20 | 20 | 20 | 21 | 19 | 19 | 21 | 21 | 24 | 23 | 21 | 23 | 22 |
Feels °C | 26 | 24 | 24 | 26 | 26 | 22 | 21 | 22 | 21 | 19 | 19 | 21 | 18 | 20 | 22 | 18 | 22 | 20 | 21 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | ESE 6 | ESE 6 | ESE 6 | ESE 7 | E 7 | ESE 7 | ESE 8 | ESE 8 | NNE 4 | S 6 | E 13 | E 5 | ESE 6 | NNE 4 | S 6 | SSE 7 | SE 6 | SW 4 | ESE 6 | ESE 6 | ESE 5 |
| kJ | 16 | 8 | 7 | 21 | 9 | 10 | 14 | 22 | 3 | 1 | 3 | 13 | 12 | 4 | 18 | 10 | 10 | 4 | 3 | 3 | 3 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | ESE 8 | SSW 5 | SE 5 | E 9 | E 5 | E 14 | E 14 | SE 13 | S 6 | SSW 3 | NE 4 | E 12 | E 7 | E 6 | NNW 4 | ESE 6 | N 3 | NNE 3 | SE 11 |
| kJ | 1 | 1 | 6 | 6 | 1 | 2 | 2 | 4 | 4 | 7 | 1 | 2 | 3 | 11 | 8 | 3 | 1 | 4 | 1 | 1 | 4 |
Swell 3 Height (m) Direction Period (s) | NE 4 | — | S 6 | SE 9 | E 8 | — | E 15 | E 14 | — | SW 6 | SE 13 | E 8 | N 4 | E 7 | NNE 4 | E 12 | E 6 | S 7 | SE 11 | S 6 | S 6 |
| kJ | 1 | — | 1 | 3 | 10 | — | 4 | 4 | — | 1 | 7 | 4 | 1 | 4 | 2 | 11 | 3 | 3 | 5 | 1 | 1 |
Wind waves Height (m) Direction Period (s) | SW 3 | SSW 4 | SSW 4 | — | SSW 3 | — | — | N 4 | E 8 | E 4 | E 5 | — | — | SSE 5 | — | NW 3 | SW 4 | NW 3 | — | — | SSW 2 |
| kJ | 1 | 15 | 5 | — | 3 | — | — | 8 | 30 | 25 | 33 | — | — | 37 | — | 2 | 12 | 1 | — | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 10 | 132 | 132 | 10 | 132 | 10 | 477 | 477 | 132 | 486 | 1180 | 597 | 94 | 377 | 129 | 137 | 140 | 138 | 486 | 808 | 137 |
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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