Porsmilin Surf Break

Lat Long: 48.36° N 4.68° W

Porsmilin Surf Forecast and Surf Report

Issued: 7 pm 12 Sep 2026 (local time)

Forecast update in  hr  min

Today's Porsmilin sea temperature is
17.1°C
0.1° 

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


Porsmilin surf forecast from 12 Sep 2026:

  • Best quality surf: Sunday 20 Sep, 2AM (local time) - 7ft (2.2m), 15s period, WNW swell with offshore winds.
  • Most powerful swell: Sunday 20 Sep, 2AM (local time) - 7ft (2.2m), 15s period, WNW swell with 2,147 kJ wave energy.
  • Next surfable swell (1★+): Monday 14 Sep, 2AM (local time) - 3.5ft (1.1m), 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 (Sep 14) at 2AM. The primary swell is predicted to be 1.1m and 10s period with a secondary swell of 0.9m and 11s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Porsmilin in the next 16 days are 2.2m 15s and forecast to arrive on Sunday (Sep 20) at 2AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Tuesday (Sep 15) at 2PM.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Mon 14th Sep)3.5ft (1.1m) 10s
Best Surf 2AM (Sun 20th Sep)7ft (2.2m) 15s
Most Powerful 2AM (Sun 20th Sep)7ft (2.2m) 15s

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


The Lowdown

G’day, it’s Rusty.

Look, the next couple of weeks at Porsmilin are going to be a bit of a mixed bag, and honestly, for the next few days, you might as well leave the board in the shed. The wind’s got a nasty cross-on angle on it, and the waves are just gonna be a mess. We’re talking combined swell energy of 414 – that’s weak – with a 4ft WNW swell at 10 seconds, and cross-on winds making it choppy. It’s not worth the paddle out.

We’ve got a bit of a gap here. Nothing on offer for Saturday, Sunday, Monday, or Tuesday. A few days of onshore junk and poor conditions. You're looking at a couple of days with nothing clean. But don't get too down, because things start to stir on Wednesday the 16th. The swell is picking up to 7ft with a strong combined energy of 1224, and there’s a solid cross-off wind from the NW. It's still a bit rough around the edges, a 2/10 at best, but it's a sign of things to come.

Then we get a lull before the real event. The standout window is shaping up for Friday the 18th through to the following week. On Friday morning the swell jumps to 8ft, with a long 14-second period and combined energy hitting a solid 2827. It's a proper groundswell. But the wind is cross-shore and messy, so it's not going to be perfect. Saturday the 19th is stormy, forget it. Sunday the 20th brings more size, 7ft to 8ft, but with that long 15-second period and fresh cross-shore winds, it'll be lumpy as all get-out. It’s only for the determined.

Now, here’s where it gets interesting. The real gem in this outlook is Tuesday the 22nd. The swell is still a solid 7ft from the WNW, but the wind finally drops out and goes cross-off from the NW. It’s clean, period is a nice 12 seconds, and the combined energy is 1059. The forecast is calling for “very good surf conditions.” That’s your morning or afternoon session. After that, we get a little drop in size, but Wednesday the 23rd is looking alright with clean conditions and a 4ft swell, perfect for the loggers out there.

As for the first break I mentioned, Porsmilin, the water temp is sitting at 63°, which is pretty much dead average for this time of year, about 0.2° off the norm.

After that, we’re into the long-range stuff, which is promising but less certain. Around the 27th, a big 10ft swell with a 15-second period is forecast, but the wind is howling, fresh and cross-on. That’s going to be a handful, and at 10ft, it’s expert territory only. With that much power and wind, it might be a better day for the kites than the paddles at this exposed sandbar.

So, in a nutshell: the early part is a write-off, keep your eye on Tuesday the 22nd, and if you’re feeling brave, the last weekend of the period has size but it'll be wild.

Rusty, signing off.

Short Range Forecast

Mostly dry. Warm (max 21°C on Mon afternoon, min 16°C on Sat night). Winds increasing (calm on Sun night, fresh winds from the NW by Tue afternoon).

Days 5-7 Weather Summary

Light rain (total 2mm), mostly falling on Thu afternoon. Very mild (max 17°C on Thu morning, min 15°C on Wed morning). Mainly fresh winds.

Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
0
0
2
1
0
1
0
0
1
2
3
1
0
0
1
2
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)
1.7
WNW
12
1.6
WNW
11
1.6
WNW
11
1.1
W
10
0.9
W
9
0.9
W
9
0.8
W
8
0.7
WNW
11
1.5
WNW
10
1.8
WNW
8
2.1
WNW
9
2.3
WNW
11
1.9
WNW
11
1.6
WNW
10
1.6
WNW
10
1.8
WNW
9
2.4
WNW
13
2.4
WNW
14
2
WNW
13
Wave Graph
Metric surfscale
Energy kJ
748
631
608
235
130
127
90
107
446
479
671
1238
778
502
462
531
1979
2068
1306
Wind (km/h)
10
WSW
10
SW
10
WSW
0
WNW
5
S
10
WSW
5
SW
20
WNW
30
NW
25
NNW
20
NNW
20
NW
20
W
30
WSW
25
NW
20
WNW
20
WNW
20
WSW
25
SW
Wind State
cross-on
on
cross-on
glassy
glassy
cross-on
glassy
cross
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross-off
cross-off
cross
cross-on
cross-on
High Tide
7:04AM6.06m
7:19PM6.13m
7:37AM5.92m
7:53PM5.86m
8:09AM5.65m
8:26PM5.48m
8:41AM5.30m
8:59PM5.03m
9:15AM4.88m
9:35PM4.56m
9:54AM4.44m
10:20PM4.10m
Low Tide
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
3:41PM1.40m
3:58AM1.68m
4:27PM1.84m
4:49AM2.09m
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
part cloud
clear
clear
part cloud
part cloud
rain showers
part cloud
cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:50
7:52
7:54
7:56
7:56
7:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:37
8:36
8:34
8:31
8:30
8:28
8:25
 mm
2
Temp °C
17
18
18
18
19
21
20
18
17
16
16
16
16
17
17
16
16
17
17
Feels °C
16
17
16
17
20
20
20
17
14
12
12
12
12
13
12
11
13
13
14
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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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