Porsmilin Surf Break

Lat Long: 48.36° N 4.68° W

Porsmilin Surf Forecast and Surf Report

Issued: 7 am 30 Aug 2026 (local time)

Forecast update in  hr  min

Today's Porsmilin sea temperature is
17.8°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 30 Aug 2026:

  • Best quality surf: Friday 4 Sep, 11AM (local time) - 7.5ft (2.3m), 12s period, WNW swell with cross-offshore winds.
  • Most powerful swell: Saturday 5 Sep, 2AM (local time) - 8ft (2.5m), 13s period, WNW swell with 2,356 kJ wave energy.
  • Next surfable swell (1★+): Monday 31 Aug, 8PM (local time) - 7.5ft (2.3m), 10s period with WNW 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 13s 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 6s period and expected on Sunday (Aug 30) at 2PM.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Mon 31st Aug)7.5ft (2.3m) 10s
Best Surf11AM (Fri 4th Sep)7.5ft (2.3m) 12s
Most Powerful 2AM (Sat 5th Sep)8ft (2.5m) 13s

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


The Lowdown

Alright folks, Rusty here. Let's get straight into it for Porsmilin.

The next two weeks-plus are a real mixed bag, a bit of a frustrating stretch for sure. We're looking at a decent pulse of swell early on, but the winds are going to make things messy before they clean up. There's a proper window of quality in there if you play it smart, but the rest of the forecast is mostly a write-off for good surfing. We do have to sit through a few proper flat days later on, so manage your expectations.

It all kicks off on Sunday the 30th and to be honest, it's not worth getting wet for. There's some energy in the water with a 5ft swell, but the wind is howling from the SW at 15.5 mph, blowing straight cross-onshore. It's going to be a choppy, blown-out mess. The combined wave energy is at 419, which is moderate, but it won't matter because the surface is going to be terrible. That afternoon it gets even worse – the wind is forecast to push up to 25 mph with a squall risk, and the period drops to just 7 seconds. The wave energy rises to 482, but this is a full-on stormy, onshore washing machine. Forget it.

Monday the 31st is more interesting, but still not perfect. The swell is up to 8ft and the period jumps to 10 seconds, and the wind swings around to the NW, which is cross-offshore here. The combined energy jumps way up to 1437, so there's some serious power in the water. The problem is the comment flags "marginal surf forecast or questionable tide conditions." It’s going to be big and clean, but might not have the right shape. This is for experienced surfers only; that size is too much for beginners. The afternoon stays similar with the energy still high at 1155, but it's still only a two or three out of ten for me.

Tuesday the 1st of September sees the swell drop quickly, down to around 4ft for the morning. The wind turns onshore from the SSW at just 6 mph, which is light, but it's still onshore. The energy has dropped right off to 295. It's looking pretty average and weak. The afternoon is even worse, with the swell dropping further to 3ft and the wind going cross-onshore. Not a day to get excited about.

From Wednesday the 2nd through to Thursday the 3rd, the surf goes dormant. The swell is tiny, ranges between 2ft and 4.5ft, with short 8-second periods, and the SW wind is cross-onshore and clocking in at 12.5 mph. The energy is weak, around 93 to 450. This is just poor, choppy, dribbly surf. A full two-day gap where the best option is to find another hobby.

Just when you're about to give up, Friday the 4th of September looks like a serious standout. The swell fills in properly to around 7.5ft in the morning, and the period has stretched out to a long 12 seconds. This is proper groundswell, and the wind has swung to the NW at 9.5 mph, which is a clean cross-off. The energy is a very strong 1457, and the model is saying "excellent surf conditions for experienced surfers." This has the potential to be really, really good. Porsmilin is a sandbar, and a long-period WNW swell like this can be a touch straight, but with that cross-off wind, it could be holding a nice shape. This will be big, powerful and for experienced surfers only. The afternoon keeps the pace up, energy jumps to a massive 2866, but the wind picks up a touch to 12.5 mph. It's still a top pick for the period.

Saturday the 5th of September is your second, and arguably the best, call of the stretch. The morning is where it's at. The swell is still a solid 7ft with a 12-second period, and the wind goes offshore from the NNE at a light 6 mph. The energy is still cranking at 1202. The record says "expect very good surf conditions." This is the one. Glassy, clean, powerful, long-period waves. It’s going to be all-time if the sandbar is holding. The crowd is listed as "sometimes," so you might get a few out, but it will be worth it. The afternoon backs off a little in size to around 6ft as the wind swings more to the north. Still good, but the morning is the session to target.

After that, it's a slow and sad fade. Sunday the 6th of September the swell drops back to under 3ft, the wind goes cross-shore and the energy just dies. Monday and Tuesday are similar small and unexciting, and by the 10th and 11th of September it looks tiny, with energy readings in double digits.

There's a brief flicker of life on Saturday the 12th, with some shoulder-high leftovers and a bit more energy, but then it's pretty flat and ordinary right through the end of the forecast on Monday the 14th. There will be a frustratingly flat end to the window.

So, to be straight with you: Friday the 4th and

Short Range Forecast

Light rain (total 3mm), mostly falling on Sun afternoon. Very mild (max 19°C on Sun morning, min 16°C on Tue morning). Winds decreasing (strong winds from the SW on Sun afternoon, calm by Mon night).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 19°C on Thu afternoon, min 16°C on Fri night). Wind will be generally light.

Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
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
3
2
3
1
0
0
0
0
0
0
0
0
4
3
3
3
2
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
W
9
2.1
WSW
7
3
W
10
2.5
W
10
2.5
WNW
10
2
WNW
10
1.3
WNW
9
1
W
9
0.8
WNW
8
0.8
WNW
8
1.2
WNW
8
1.6
WNW
8
1.4
W
8
1.4
W
8
2
WNW
13
2.3
WNW
12
2.5
WNW
12
2.5
WNW
13
2.1
WNW
12
1.8
WNW
11
1.3
WNW
10
Wave Graph
Metric surfscale
Energy kJ
328
482
1775
1437
1155
698
283
162
90
83
151
354
257
257
1319
1449
1776
2356
1195
800
367
Wind (km/h)
25
SW
40
SW
35
WSW
20
NW
15
NW
5
SW
10
SSW
15
W
15
WSW
20
SW
20
SW
20
SW
20
SW
20
SW
25
SW
15
NW
20
NW
20
NNW
10
NNE
25
N
20
E
Wind State
cross-on
cross-on
cross-on
cross-off
cross-off
glassy
on
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-off
cross-off
cross-off
off
cross-off
cross-off
High Tide
7:20PM6.06m
7:38AM5.88m
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
Low Tide
1:23PM0.29m
1:43AM0.18m
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
cloud
rain showers
thunderstorm
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
cloud
part cloud
part cloud
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:31
7:33
7:35
7:35
7:37
7:39
7:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:05
9:02
9:00
8:59
8:57
8:54
8:52
 mm
2
1
Temp °C
19
19
18
17
17
17
17
18
17
17
18
18
18
19
19
18
17
16
15
18
17
Feels °C
16
15
12
13
14
15
16
16
15
16
15
16
17
18
19
18
15
13
13
14
12
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Porsmilin:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Porsmilin surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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.

Nearest locationNearest