Coastguard Beach Surf Break

Lat Long: 41.83° N 69.95° W

Coastguard Beach Surf Forecast and Surf Report

Issued: 7 am 04 Sep 2026 (local time)

Forecast update in  hr  min

Today's Coastguard Beach sea temperature is
20.0°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 4 Sep 2026:

  • Best quality surf: Sunday 6 Sep, 5PM (local time) - 4.5ft (1.3m), 8s period, NE swell with cross-offshore winds.
  • Most powerful swell: Thursday 10 Sep, 8AM (local time) - 5ft (1.6m), 8s period, SSW swell with 294 kJ wave energy.
  • Next surfable swell (1★+): Sunday 6 Sep, 5PM (local time) - 4.5ft (1.3m), 8s period with NE 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 (Sep 06) at 5PM. The primary swell is predicted to be 1.3m and 8s period with a secondary swell of 0.1m and 7s. Another secondary swell of 0.1m and 10s 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 1.6m 8s and forecast to arrive on Thursday (Sep 10) 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 1.7m 6s period and expected on Thursday (Sep 10) at 5AM.

Wave TypeTime (EDT) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Sun 6th Sep)4.5ft (1.3m) 8s
Best Surf 5PM (Sun 6th Sep)4.5ft (1.3m) 8s
Most Powerful 8AM (Thu 10th Sep)5ft (1.6m) 8s

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


The Lowdown

Right then. I’m Rusty, and this is what I’m seeing for our little patch.

First up, don’t get your hopes up for most of the next two weeks. We’ve got a long, quiet stretch ahead, but there is one window that looks worth getting excited about. We’re talking about Coastguard Beach. That’s the only spot on the radar.

The water temperature is sitting at 68°, which is about 2° warmer than usual for this time of year, so it’s a touch on the mild side.

Let’s jump in. The first few days are a real write-off. Friday the 4th and Saturday the 5th are a total no-go with tiny, weak slop and rubbish wind. Sunday morning the 6th is still dead flat, but then things shift. Sunday afternoon the 6th is the standout of the whole outlook. We finally get a pulse of 4ft NE swell with an 8-second period and a combined wave energy of 201 (moderate energy). The wind is a light NNW cross-offshore breeze, so it’s going to be clean. This is your best chance for a surf. The swell is modest, so it’s fine for most levels, but the short period means it won’t have much push. Still, clean waves at that size are a good time.

Monday the 7th has a drop in size, down to 3ft NE swell, but with a bit more period at 9 seconds. The wind is still cross-off, so it remains rideable, just nothing special. Tuesday the 8th onward falls away into a very flat and unremarkable pattern. There’s a small bump of 3ft from the south on Thursday the 10th, but it’s only 8 seconds with a strong offshore wind, making for a clean but very weak day for the experts only. The energy is minimal at 85.

We then hit a major drought. From the 9th of September all the way through to the 16th, it’s a ghost town. Tiny, unrideable waves, if any. Most days the energy is in single digits. Honestly, it looks more interesting for the kite crew than us paddle surfers on many of those days with the strong cross-off winds.

Then, on Thursday the 17th, there is a more significant swell due from the NE at 4ft with a 7-second period and a combined energy of 153. The wind is strong and cross-off from the SSW. It'll be clean and punchy, but that 4ft is still manageable for most, though the short period will make it a bit dumpy. It’s a solid option for those who can wait. The 18th drops off again.

So, to keep it simple: Sunday afternoon the 6th is your clear winner. Thursday the 17th is a decent second option but a long way off. The rest of the time, the board stays in the car.

Stay frothy,
Rusty

Short Range Forecast

Mostly dry. Warm (max 23°C on Fri night, min 16°C on Sat night). Winds increasing (light winds from the SSW on Fri night, fresh winds from the N by Sun morning).

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Wed night. Warm (max 22°C on Mon afternoon, min 18°C on Mon morning). Winds increasing (light winds from the WNW on Mon afternoon, strong winds from the SW by Wed night).

Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
AM
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
2
0
0
1
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)
0.5
E
7
0.5
E
7
0.4
E
7
0.9
NNE
4
1.1
NE
6
1.2
NE
7
0.1
S
7
1.3
NE
8
0.9
NE
9
0.9
NE
9
0.8
NE
10
0.5
ENE
9
0.4
ENE
9
0.3
ENE
9
0.3
ENE
8
0.2
ENE
9
0.2
ENE
8
0.1
E
10
0.8
S
8
0.6
S
8
0.4
SSE
8
Wave Graph
Metric surfscale
Energy kJ
22
22
14
25
67
128
1
196
110
138
110
49
32
15
14
7
7
2
84
51
21
Wind (km/h)
10
NNW
10
SE
25
NW
25
NNE
30
NNE
25
NNE
35
N
10
NNW
15
NW
20
NNW
5
WNW
20
NW
15
NNW
10
ESE
10
WSW
15
SSW
40
SW
45
SW
35
WNW
30
WNW
40
NW
Wind State
cross-off
cross-on
cross-off
cross
cross-on
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
off
cross-off
cross-off
cross-off
off
off
cross-off
High Tide
5:30PM2.83m
6:18AM2.42m
6:36PM2.82m
7:27AM2.45m
7:44PM2.86m
8:33AM2.54m
8:49PM2.93m
9:33AM2.67m
9:49PM3.02m
10:27AM2.82m
10:44PM3.08m
11:16AM2.94m
11:35PM3.10m
Low Tide
11:09AM0.74m
00:05AM0.50m
12:14PM0.77m
1:13AM0.49m
1:24PM0.75m
2:19AM0.42m
2:31PM0.66m
3:19AM0.33m
3:34PM0.53m
4:14AM0.24m
4:30PM0.39m
5:04AM0.18m
5:23PM0.28m
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
part cloud
part cloud
cloud
cloud
part cloud
rain showers
clear
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:09
6:09
6:11
6:11
6:13
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:07
7:07
7:05
7:02
7:01
7:00
6:58
 mm
2
Temp °C
20
22
23
19
18
19
16
18
19
18
22
22
21
22
22
22
22
22
23
22
17
Feels °C
21
23
22
17
14
15
10
15
16
14
20
18
18
20
20
21
20
17
19
17
7
  • 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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