Coastguard Beach Surf Break

Lat Long: 41.83° N 69.95° W

Coastguard Beach Surf Forecast and Surf Report

Issued: 1 pm 19 Aug 2026 (local time)

Forecast update in  hr  min

Today's Coastguard Beach sea temperature is
21.2° C
1.0° 

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 19 Aug 2026:

  • Best quality surf: Sunday 23 Aug, 8AM (local time) - 3ft (0.9m), 5s period, SSE swell with cross-offshore winds.
  • Most powerful swell: Saturday 22 Aug, 11PM (local time) - 2ft (0.6m), 13s period, E swell with 116 kJ wave energy.
  • Next surfable swell (1★+): Sunday 23 Aug, 8AM (local time) - 3ft (0.9m), 5s period with SSE swell.

Best Forecast Surf Conditions for Coastguard Beach this week:

The surf forecast for Coastguard Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 23) at 8AM. The primary swell is predicted to be 0.9m and 5s period with a secondary swell of 0.5m and 4s. Another secondary swell of 0.4m and 5s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Coastguard Beach in the next 16 days are 0.6m 13s and forecast to arrive on Saturday (Aug 22) 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 0.7m 4s period and expected on Wednesday (Aug 19) at 8PM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Sun 23rd Aug)3ft (0.9m) 5s
Best Surf 8AM (Sun 23rd Aug)3ft (0.9m) 5s
Most Powerful11PM (Sat 22nd Aug)2ft (0.6m) 13s

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


The Lowdown

Alright, mate. Rusty here, and I’ve got to level with you. The next couple of weeks are looking pretty grim on the surf front. We’ve got a solid 16-day window, but the truth is, the waves are just not showing up in any meaningful way. It’s a bit of a flat spell, and you’ll be waiting a long time for anything decent.

The only break on the radar is Coastguard Beach, and it’s a consistent spot, but the problem is the swell. From now through the end of the forecast, the waves are tiny. We’re talking 0.3 ft to maybe 4 ft at best, and the energy is weak. The combined swell energy is mostly in the single digits or low double digits, hitting a peak of 154 on the 31st of August afternoon, but even then it’s just moderate energy. The swell direction is all over the place – ESE, E, SE, NE – but the optimum direction for this spot is SE, so only a few of those line up. The period is short, mostly 4 to 10 seconds, so it’s really just wind swell, not groundswell.

The water temperature at the start is 70°, which is about 2° warmer than average for this time of year, so it’s a bit on the mild side, but nothing crazy.

Looking at the next few days, Thursday the 20th and Friday the 21st are totally flat with poor surf, and the wind is mostly cross-off or cross, which is okay for texture, but there’s no wave to ride. Saturday the 22nd has a bit of swell at 3 ft, but with onshore winds and rain, it’s messy. Sunday the 23rd has a glassy morning with 2 ft swell from the SE, but the period is only 5 seconds, so it’s weak and weak. The 24th through the 26th are all tiny, with some offshore or glassy conditions, but you’re looking at 0.3 ft to 2 ft – not worth paddling out for.

Now, near the end of August and into early September, there’s a slight bump. From the 28th of August onward, the swell picks up a bit, hitting 3 ft to 4 ft, and the combined energy gets into the three-digit range (75 to 154). But the wind is almost always onshore or cross-on, from the NE or ENE, which is going to mess up the surface. The period is still short (5 to 9 seconds), and the swell direction is from the E or NE, not the optimum SE. So, even though the size is there, it’s going to be choppy, lumpy, and generally poor.

The best you’re looking at is maybe the morning of the 3rd of September, with a 2 ft swell from the E, a 8-second period, and a cross-off wind from the SW at 12 mph. That’s clean, but it’s still small. The afternoon of the 3rd is similar but with a stronger 18 mph wind.

Overall, there’s no standout day. The best option is probably the 28th of August afternoon, when the swell is 4 ft from the E, but the onshore wind is strong. For a beach break like Coastguard, with that short period and onshore wind, it’s more of a kite-surfing setup than a paddling session. It’s a tough stretch, but that’s the way it goes sometimes.

Rusty.

Short Range Forecast

Light rain (total 4mm), mostly falling on Sat morning. Warm (max 25°C on Wed afternoon, min 18°C on Sat morning). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 33mm), heaviest during Sat afternoon. Warm (max 25°C on Mon afternoon, min 18°C on Sat night). Wind will be generally light.

Wed
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
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)
0.3
ESE
6
0.3
ESE
6
0.4
ESE
7
0.3
ESE
9
0.3
ESE
7
0.3
E
8
0.3
ESE
8
0.5
E
8
0.8
ESE
4
0.7
ESE
4
0.2
E
13
0.6
SE
5
0.5
SE
5
0.4
ESE
6
0.4
SSE
6
0.4
SSE
6
0.3
SE
6
0.5
N
4
0.2
E
6
0.2
E
6
Wave Graph
Metric surfscale
Energy kJ
8
6
18
16
10
12
13
31
21
16
13
15
13
15
12
12
5
6
3
4
Wind (km/h)
30
SSW
15
SW
5
SW
15
SSW
10
NW
20
NNE
15
NNE
15
SE
20
E
30
ESE
20
WSW
5
W
20
S
10
SW
15
W
15
SW
20
NW
15
WNW
10
S
15
WSW
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross-on
on
on
off
glassy
cross-off
cross-off
off
cross-off
cross-off
off
cross
cross-off
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
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
clear
clear
clear
part cloud
rain showers
clear
clear
clear
light rain
heavy rain
light rain
cloud
cloud
rain showers
thunderstorm
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:52
5:54
5:54
5:56
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:34
7:32
7:30
7:30
7:28
7:25
7:24
 mm
1
3
22
5
1
5
Temp °C
25
24
25
25
23
20
20
20
20
20
23
19
23
24
23
25
24
19
22
22
Feels °C
23
23
27
27
20
19
18
19
18
18
24
21
24
25
22
24
22
16
20
19
  • 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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