Porsmilin Surf Break

Lat Long: 48.36° N 4.68° W

Porsmilin Surf Forecast and Surf Report

Issued: 7 pm 10 Sep 2026 (local time)

Forecast update in  hr  min

Today's Porsmilin sea temperature is
17.3°C
0.2° 

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


Porsmilin surf forecast from 10 Sep 2026:

  • Best quality surf: Friday 11 Sep, 8AM (local time) - 5.5ft (1.7m), 10s period, W swell with cross-offshore winds.
  • Most powerful swell: Wednesday 16 Sep, 8PM (local time) - 6.5ft (2.0m), 11s period, WNW swell with 926 kJ wave energy.
  • Next surfable swell (1★+): Friday 11 Sep, 8AM (local time) - 5.5ft (1.7m), 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 Friday (Sep 11) at 8AM. The primary swell is predicted to be 1.7m 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 2.0m 11s and forecast to arrive on Wednesday (Sep 16) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Fri 11th Sep)5.5ft (1.7m) 10s
Best Surf 8AM (Fri 11th Sep)5.5ft (1.7m) 10s
Most Powerful 8PM (Wed 16th Sep)6.5ft (2.0m) 11s

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


The Lowdown

Alright, Rusty here. Grab a coffee, let's talk about what's coming up for Porsmilin over the next couple of weeks. It's a bit of a mixed bag, but there are a couple of windows that are going to be worth the wait, especially for the more experienced crew.

The long-range picture is the one that really gets the stoke going. The next week to ten days is looking pretty ordinary, to be honest. We've got a lot of cross-shore and onshore wind messing things up, and a lot of the days are just showing "poor surf conditions" or "marginal" calls. You'll have to be patient. There's a real gap in quality from now right through until about the 17th of September, with hardly anything worth paddling out for. But hold on, because the second week is where it gets interesting.

Let's break it down. Friday the 11th is a bit of a tease. We’ve got a clean 4ft swell from the west with a long 9-second period, and a nice cross-off wind in the afternoon, but the energy is only moderate at 258. It's surfable, but nothing to write home about. Saturday the 12th and Sunday the 13th are write-offs with onshore wind and poor conditions, despite Sunday seeing a 6ft swell.

Monday the 14th and Tuesday the 15th are more of the same – poor surf and strong winds. By Wednesday the 16th, the swell bumps up to 7ft to 7ft from the WNW, with a moderate 10-second period and clean cross-off winds, so it’s cleaner but the energy is getting up there (1027 in the afternoon). That’s getting into the "expert only" zone if you’re not comfortable in that size. Thursday the 17th morning looks clean with a 5ft swell, but the wind switches onshore by the afternoon. Friday the 18th is a complete mess with strong onshore winds.

Now, here’s the standout. Mark your calendars for Tuesday the 22nd of September. The morning kicks off with a solid 6ft, long-period 15-second groundswell from the WNW. The combined swell energy is a strong 1587. The wind is a clean cross-off from the ENE. But it’s the Tuesday afternoon that’s the real gem. We get an offshore wind from the NNE at 12 mph, a 6ft swell from the WNW, and a 14-second period. The combined energy is a very strong 1476. The guidance calls it "excellent surf conditions for experienced surfers," and I’m not arguing. Porsmilin is a sandbar, and with this long-period WNW groundswell, it’s going to hold up well. The water temperature is about average for this time of year, so no surprises there. Just keep in mind the crowds can be *sometimes* a thing here, so get in early.

Then, if you’re still hungry, Thursday the 24th of September is another big one. The morning swell is pumping at 10ft from the WNW, but with a cloudy sky and a cross-off wind. That’s serious size, only for experts with a death wish or a really big board. The Thursday afternoon, however, is pure magic. You’ve got an 8ft WNW swell, a 12-second period, and glassy conditions. The energy is massive at 1906. "Excellent surf conditions for experienced surfers" is what it says, and with glassy, clean faces, that’s going to be a session to remember. Again, this is expert territory at that size.

Before that, Wednesday the 23rd afternoon is worth a mention too. A clean and glassy 6ft swell from the WNW with a 12-second period. That’s a very good day for the confident intermediate surfer.

The last few days of the forecast drop back down in quality as the wind turns onshore again. Saturday the 26th morning has a clean 6ft from the NW, but not quite the same punch.

So, the long and short of it is: be patient through the first ten days of slop and onshore wind. The real action is in the final week, specifically Tuesday afternoon the 22nd and Thursday afternoon the 24th. Those are your standouts. Get out there if you’ve got the skills.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Thu night. Very mild (max 19°C on Fri afternoon, min 16°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 23°C on Mon afternoon, min 16°C on Tue night). Winds increasing (calm on Sun night, fresh winds from the NW by Tue afternoon).

Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
1
1
1
0
0
1
1
1
2
0
0
0
0
0
1
1
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
W
10
1.5
W
10
1.3
W
9
1.1
W
8
0.8
WNW
10
1.3
WNW
10
1.5
WNW
12
1.7
WNW
11
1.6
WNW
11
1.1
W
10
0.9
W
9
0.8
W
9
0.6
W
9
0.9
WNW
8
0.9
WNW
11
2
WNW
8
2
WNW
10
2.1
WNW
10
1.8
WNW
11
Wave Graph
Metric surfscale
Energy kJ
627
400
258
161
120
314
633
750
608
231
133
103
55
112
216
547
701
902
705
Wind (km/h)
20
SW
10
WNW
15
NW
5
NNE
5
SSW
15
WSW
10
WSW
15
WSW
15
W
5
NW
10
SSE
15
SSW
20
SSE
30
WNW
30
WNW
25
NW
25
NNW
25
NNW
20
NNW
Wind State
cross-on
cross
cross-off
glassy
on
cross-on
cross-on
cross-on
cross
glassy
cross-on
on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
5:53AM5.91m
6:08PM6.24m
6:29AM6.06m
6:45PM6.27m
7:04AM6.06m
7:19PM6.13m
7:37AM5.92m
7:53PM5.86m
8:09AM5.65m
8:26PM5.48m
8:41AM5.30m
8:59PM5.03m
Low Tide
11:54PM0.06m
12:09PM0.14m
00:32AM-0.09m
12:47PM0.03m
1:08AM-0.06m
1:22PM0.07m
1:41AM0.12m
1:56PM0.27m
2:14AM0.42m
2:30PM0.58m
2:46AM0.81m
3:04PM0.97m
3:20AM1.24m
rain showers
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:48
7:50
7:50
7:52
7:54
7:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:43
8:40
8:37
8:36
8:34
8:31
8:30
 mm
1
Temp °C
17
18
19
18
16
18
18
19
19
19
20
23
23
18
18
17
16
16
15
Feels °C
13
18
17
16
17
16
16
18
17
19
20
22
23
17
14
13
13
11
11
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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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