Coastguard Beach Surf Break

Lat Long: 41.83° N 69.95° W

Coastguard Beach Surf Forecast and Surf Report

Issued: 1 pm 25 Aug 2026 (local time)

Forecast update in  hr  min

Today's Coastguard Beach sea temperature is
20.6°C
0.8° 

Coastguard Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Coastguard Beach surf forecast from 25 Aug 2026:

  • Most powerful swell: Wednesday 26 Aug, 2PM (local time) - 1.5ft (0.5m), 10s period, E swell with 47 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 0.5m 10s and forecast to arrive on Wednesday (Aug 26) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Tuesday (Aug 25) at 8PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2PM (Wed 26th Aug)1.5ft (0.5m) 10s

Table - best surf conditions forecast for Coastguard Beach over the next 16 days.


The Lowdown

Alright, folks, Rusty here. Let’s have a look at what’s coming down the line for Coastguard Beach. I gotta be straight with you – this one’s a tough stretch. The whole 16-day outlook is a bit of a desert, so don’t get your hopes up too high.

We kick off on Tuesday, August 25th, and right away you can see the problem. We’ve got a tiny 1 ft swell from the ESE with a short period of 6 seconds. The combined energy is a measly (13), which is just about as weak as it gets. The wind is offshore, WSW at 12 mph, so it’ll be clean, but with almost no wave to ride, it’s a flat, glassy lake out there. That sets the tone for most of the next week – tiny, weak swells with poor surf conditions.

We crawl through a whole lot of nothing. Wednesday and Thursday are the same story – 1 ft to 2 ft swells, periods under 10 seconds, energy readings in the 20s and 30s. The wind flips around a bit, but it’s all cross or cross-offshore. It’s clean, but there’s no juice. By Friday, August 28th, we get a little bump to 3 ft, but it’s a 4-second period from the SE, which is just windswell slop. The energy climbs to (30), but it’s a risk of thunderstorms and a cross-shore chop. Not worth paddling out for.

The weekend and the start of the next week are flatlined. Saturday and Sunday, August 29th and 30th, are back to 1 ft and 1 ft with energy barely cracking 20. The only interesting thing is a 16-second period on Monday, August 31st, but the swell height is only 0.3 ft – that’s a ghost swell. The energy is a pathetic (7). It’s pure, clean, and empty, but completely unsurfable.

Now, the first real flicker of hope comes on Tuesday, September 1st. The morning is still tiny, but the afternoon sees a 3 ft swell from the SW with a 7-second period, and the energy jumps to (88). The wind is light and cross-offshore, so it’ll be clean. The guidance says it’s "surfable waves but very ordinary conditions," which is the best we’re going to get. It’s a beginner-friendly size, but don’t expect anything special.

After that, the long-range forecast from September 2nd onward is a stagnant mess. We get a run of 0.7 ft to 1 ft swells from the ESE with periods around 10 to 12 seconds. The energy stays in the teens and twenties. The wind is a steady moderate breeze from the north or northeast, keeping it chop and cross-shore. It’s just a flat, non-event through to the end of the outlook on September 9th.

The water temp is sitting at 69°F with a 1°F anomaly, so it’s pretty average for this time of year. No complaints there.

So, what’s the verdict? There’s only one standout window, and it’s a weak one. The best on offer is the afternoon of Tuesday, September 1st. That 3 ft SW swell with clean, cross-offshore winds is your only real chance to get wet. It’s small, it’s ordinary, but it’s the only thing that’s surfable in the whole 16 days. The break is consistent, but the swell is not. It’s a beach break, and with the wind being offshore, it’ll be clean. Expect some crowds though, as it’s the only game in town.

The rest is a long, flat, and frustrating gap. For the first week, it’s basically a no-go. The second week is just as bad. This is a tough run for Coastguard Beach. I wish I had better news, but sometimes the ocean just shuts down.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Fri morning. Warm (max 25°C on Thu afternoon, min 19°C on Wed morning). Winds increasing (light winds from the NNE on Wed afternoon, fresh winds from the SSW by Thu night).

Days 5-7 Weather Summary

Light rain (total 3mm), mostly falling on Fri afternoon. Warm (max 24°C on Sun afternoon, min 18°C on Sat afternoon). Wind will be generally light.

Tue
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.2
ESE
6
0.2
ESE
10
0.4
ESE
8
0.5
E
10
0.5
E
8
0.5
E
9
0.4
ESE
9
0.4
ESE
8
0.3
ESE
8
0.7
S
4
0.6
SE
7
0.4
ESE
7
0.4
SE
8
0.2
ESE
7
0.2
ESE
7
0.3
SE
7
0.1
SE
8
0.1
E
16
0.1
E
16
0.3
S
5
Wave Graph
Metric surfscale
Energy kJ
3
10
22
47
37
38
25
23
13
17
42
20
14
5
4
8
3
5
5
4
Wind (km/h)
20
SW
15
W
10
NW
10
SE
15
SW
20
SSW
25
SSW
25
SSW
30
S
10
SW
25
WNW
15
NNE
15
ENE
15
SW
15
SW
25
SW
30
WSW
20
WSW
5
SW
10
WSW
Wind State
cross-off
off
cross-off
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
on
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
off
High Tide
10:23PM2.70m
10:58AM2.47m
11:06PM2.77m
11:37AM2.59m
11:46PM2.83m
12:14PM2.70m
00:26AM2.85m
12:50PM2.79m
1:07AM2.84m
1:28PM2.86m
1:48AM2.80m
2:07PM2.90m
2:32AM2.73m
Low Tide
4:10PM0.85m
4:49AM0.56m
4:54PM0.74m
5:28AM0.49m
5:36PM0.63m
6:04AM0.44m
6:17PM0.53m
6:41AM0.41m
6:57PM0.46m
7:17AM0.42m
7:39PM0.41m
7:55AM0.45m
8:23PM0.39m
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
rain showers
light rain
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
cloud
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
5:58
6:00
6:01
6:01
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:24
7:22
7:22
7:20
7:17
7:16
7:15
 mm
1
3
Temp °C
24
23
20
21
22
24
25
23
24
23
22
19
18
19
22
24
22
24
24
24
Feels °C
22
22
20
22
21
22
22
21
24
22
22
17
16
18
20
21
19
25
25
28
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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