Porsmilin Surf Break

Lat Long: 48.36° N 4.68° W

Porsmilin Surf Forecast and Surf Report

Issued: 7 am 31 Aug 2026 (local time)

Forecast update in  hr  min

Today's Porsmilin sea temperature is
17.2°C
0.4° 

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


Porsmilin surf forecast from 31 Aug 2026:

  • Best quality surf: Friday 4 Sep, 11PM (local time) - 6.5ft (2.0m), 12s period, WNW swell with cross-offshore winds.
  • Most powerful swell: Saturday 5 Sep, 2AM (local time) - 8ft (2.5m), 14s period, WNW swell with 2,278 kJ wave energy.
  • Next surfable swell (1★+): Monday 31 Aug, 8PM (local time) - 7.5ft (2.3m), 10s period with W swell.

Best Forecast Surf Conditions for Porsmilin this week:

The surf forecast for Porsmilin over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 31) at 8PM. The primary swell is predicted to be 2.3m and 10s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Porsmilin in the next 16 days are 2.5m 14s and forecast to arrive on Saturday (Sep 05) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Sunday (Sep 06) at 2AM.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Mon 31st Aug)7.5ft (2.3m) 10s
Best Surf11PM (Fri 4th Sep)6.5ft (2.0m) 12s
Most Powerful 2AM (Sat 5th Sep)8ft (2.5m) 14s

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


The Lowdown

Alright folks, Rusty here. Let’s break down what’s cooking at Porsmilin over the next couple of weeks.

Right now, the water at Porsmilin is sitting at 63°, which is pretty much normal for this time of year. Nothing to write home about there.

The start of the period is a real write-off. Monday the 31st of August kicks off with a messy, cross-shore wind and a 10-foot swell from the west, but it’s all over the place with a cross-chop and marginal conditions. That afternoon and into Tuesday and Wednesday, the swell drops right off, and we’re looking at onshore winds and weak, short-period slop. The combined energy is low, like 92 to 135 units, just not worth paddling out for. Honestly, it’s a bit of a flat spell for a few days.

We get a bit of a tease on Friday the 4th of September with a 5-foot west-northwest swell, but it’s still cross-onshore and choppy. Not your day.

Now, here’s where it gets interesting. Saturday the 5th of September is your standout. We’ve got a clean, 8-foot groundswell from the west-northwest with a solid 13-second period. The wind is a light, cross-offshore breeze from the north-northwest. The combined energy is a beastly 1841 units, meaning there’s plenty of power in the water. This is an excellent session for experienced surfers – the size is too much for beginners, but the long period will make for some beautifully shaped, powerful waves. Porsmilin’s sandbar will handle that swell direction well. Keep in mind this spot is fair-consistent, so you’ll get some good sets, and you might run into a few others out there.

Sunday the 6th drops right back to small, weak surf, and that run of poor conditions carries on through the next week, with a few clean mornings but very small waves, often under 3 feet.

Then, looking further out, Monday the 14th of September has another promising pulse. The morning brings a very long-period 18-second west swell at 4 feet, with a light offshore north-northeast breeze. The energy is high at 1134 units. That’s a rare, clean, groundswell setup. The long period means it’ll break nice and deep, though it might be a bit too lined up for the beach break. The afternoon sees that swell build to 8 feet from the west-northwest, but it’s a bit more marginal. The morning session is the one to aim for, but remember, this is still a week and a half out, so it’s promising but not locked in yet.

After that, Tuesday the 15th gets messy again with onshore wind and lumpy conditions.

So, in summary: this fortnight is a classic tale of two weeks. The first week is a dud, but there are two real windows of opportunity. The standout is without a doubt Saturday the 5th of September for experienced crew. The Monday the 14th of September morning is a longer-range whisper of something special. Keep your eyes on the forecast.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 18°C on Mon afternoon, min 16°C on Mon night). Winds decreasing (fresh winds from the WNW on Mon morning, calm by Mon night).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 19°C on Thu afternoon, min 15°C on Sat night). Wind will be generally light.

Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
3
1
0
0
0
0
0
0
0
0
0
1
4
4
2
1
1
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)
3
W
10
2.4
W
10
2
WNW
10
1.3
WNW
9
1
W
9
0.8
WNW
8
0.8
W
8
1.1
W
7
1.4
W
8
1.2
W
8
1.2
W
8
1.3
W
8
1.5
WNW
9
1.5
WNW
10
2.5
WNW
14
2.4
WNW
13
2.1
WNW
12
1.6
WNW
11
1.2
WNW
10
0.9
WNW
10
0.5
NW
9
Wave Graph
Metric surfscale
Energy kJ
1545
1138
712
283
162
90
80
126
239
169
177
217
329
399
2278
1834
1177
595
281
142
39
Wind (km/h)
25
WNW
20
WNW
5
WNW
10
SSW
15
WSW
10
WSW
20
SW
25
SW
20
SW
20
SW
20
SW
15
SW
15
W
15
WNW
15
NW
15
NNW
20
NNW
15
ENE
10
SE
10
WNW
15
NNE
Wind State
cross
cross
glassy
on
cross-on
cross-on
on
on
cross-on
on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross
cross
off
High Tide
7:53PM5.99m
8:13AM5.78m
8:30PM5.79m
8:50AM5.57m
9:10PM5.46m
9:32AM5.24m
9:57PM5.03m
10:25AM4.84m
11:00PM4.58m
11:39AM4.48m
00:33AM4.27m
1:22PM4.40m
2:18AM4.37m
Low Tide
1:56PM0.31m
2:16AM0.29m
2:31PM0.45m
2:52AM0.52m
3:10PM0.70m
3:33AM0.86m
3:57PM1.04m
4:23AM1.27m
4:56PM1.42m
5:30AM1.65m
6:18PM1.69m
7:02AM1.85m
7:58PM1.66m
clear
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
clear
cloud
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:33
7:35
7:35
7:37
7:39
7:39
7:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:02
9:00
8:59
8:57
8:54
8:52
8:51
 mm
Temp °C
17
18
17
17
17
17
17
18
18
18
19
19
19
17
17
16
16
16
16
19
19
Feels °C
12
15
15
16
15
15
16
15
16
17
17
18
18
15
15
14
13
12
14
18
16
  • 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 Porsmilin Surf forecast

The above surf forecast table for Porsmilin provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Porsmilin can be found by selecting the local surf guide option on the grey menu. Our Porsmilin 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 (Porsmilin) 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 Porsmilin 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.

Porsmilin is 11 km (7 miles) from the city of Camaret-sur-Mer. If you plan a holiday in Finistere - Brittany, look for hotels and other accommodation in Camaret-sur-Mer. Camaret-sur-Mer has rooms for a wide range of budgets as well as car hire and transport links.

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