Porsmilin Surf Break

Lat Long: 48.36° N 4.68° W

Porsmilin Surf Forecast and Surf Report

Issued: 1 pm 01 Sep 2026 (local time)

Forecast update in  hr  min

Today's Porsmilin sea temperature is
17.3°C
0.3° 

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


Porsmilin surf forecast from 1 Sep 2026:

  • Best quality surf: Friday 4 Sep, 11PM (local time) - 4.5ft (1.4m), 9s period, WNW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 8 Sep, 8PM (local time) - 8ft (2.5m), 11s period, WNW swell with 1,437 kJ wave energy.
  • Next surfable swell (1★+): Friday 4 Sep, 11PM (local time) - 4.5ft (1.4m), 9s 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 Friday (Sep 04) at 11PM. The primary swell is predicted to be 1.4m and 9s period with a secondary swell of 0.8m and 11s. 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 11s and forecast to arrive on Tuesday (Sep 08) at 8PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Fri 4th Sep)4.5ft (1.4m) 9s
Best Surf11PM (Fri 4th Sep)4.5ft (1.4m) 9s
Most Powerful 8PM (Tue 8th Sep)8ft (2.5m) 11s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at the next 16 days for Porsmilin. To be honest, the first few days are a total write-off. We’re looking at a grim run starting Tuesday the 1st, with no decent surf until the weekend. The wind is messy, mostly onshore and cross-onshore, and the waves are just grovelly. You’re not missing a thing until Saturday the 5th.

The first real glimmer of hope comes on Saturday morning, the 5th. The wind swings around to a light cross-offshore from the ENE at 9 mph, cleaning things right up. The swell is 5 ft from the WNW with a period of 10 seconds, and the combined energy is a solid moderate (479). It’s not huge, but it’s clean. Then Saturday afternoon gets even better: the wind drops to a light 6 mph from the NNW, still cross-off, and the swell bumps up to 5 ft from the WNW with a longer 11-second period. The energy jumps up to 518 (moderate). This is the standout of the first week. It’ll be clean, with some proper shape. The water temp is sitting at 63°, which is about average for the time of year, so no need for a thick steamer.

Sunday the 6th is a bit of a letdown after that. The morning is small and cross-shore, only 2 ft, and the afternoon goes glassy but tiny. It’s surfable, but nothing to get excited about.

Now, Monday the 7th is where it gets interesting. The morning is glassy with a 4 ft groundswell from the west, and a 12-second period – that’s a long period, meaning real energy. The combined energy is a strong 502. This is the best call of the entire forecast. The wind is dead calm (5 mph from the west), making for perfect, clean conditions. If you can get out there Monday morning, do it. It’s a sandbar, so it’ll handle that long-period swell better than a beach break. The afternoon gets a bit bigger at 6 ft but the wind picks up and gets cross-shore, making it less perfect.

From Tuesday the 8th into the middle of the month, it gets messy again. There’s plenty of swell, but the wind is mostly onshore or cross-onshore, and strong. The 8 ft waves on Tuesday the 8th are just a choppy mess. Some of these days with strong cross-shore wind and 6 ft to 7 ft swell might be more interesting for the kite surfers than paddle surfers.

The next real standout is Thursday the 10th. The morning is clean with a light offshore wind from the north at 6 mph. The swell is 4 ft from the WNW with a 10-second period, and the energy is moderate at 290. It’s not the biggest, but the conditions will be beautiful. The afternoon is still clean but the wind picks up a bit.

After that, the second week gets a bit unreliable. The 16th of September, a Wednesday, shows some promise. The morning has a clean 5 ft swell from the west with a 10-second period, and a light cross-offshore wind. The energy is moderate (424). It’s a promising end to the run, but we’re far out, so treat it as a possibility.

Overall, the best on offer is Monday morning, the 7th of September at Porsmilin – glassy conditions, 4 ft groundswell, and a 12-second period. That’s the one to circle. The Saturday afternoon, the 5th of September is a close second.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 20°C on Thu afternoon, min 17°C on Tue afternoon). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 23°C on Sun afternoon, min 15°C on Fri night). Wind will be generally light.

Tue
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
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
0
0
0
2
1
2
2
0
1
0
2
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
W
9
0.8
WNW
8
0.8
W
8
1.2
W
7
1.4
W
8
1.2
W
8
1.2
W
8
1.2
W
8
1.3
WNW
9
1.5
WNW
9
1.6
WNW
11
1.4
WNW
10
1.5
WNW
11
1.3
WNW
11
0.7
NW
10
0.7
WNW
9
0.5
W
9
1.2
W
12
1.9
W
12
1.9
W
11
Wave Graph
Metric surfscale
Energy kJ
162
90
78
150
222
163
181
190
264
337
575
373
511
412
98
86
37
437
963
798
Wind (km/h)
15
WSW
10
SW
25
SSW
25
SW
15
SW
20
SW
15
SW
15
SW
15
WSW
15
WSW
20
NE
15
ENE
10
NNW
15
E
10
ESE
5
WNW
5
ENE
5
W
15
WNW
10
W
Wind State
cross-on
cross-on
on
on
cross-on
on
cross-on
on
cross-on
cross-on
off
cross-off
cross-off
cross-off
cross
glassy
cross-off
glassy
cross
cross-on
High Tide
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
2:53PM4.71m
3:34AM4.76m
Low Tide
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
8:37AM1.68m
9:23PM1.29m
part cloud
part cloud
part cloud
part cloud
clear
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part cloud
clear
part cloud
cloud
part cloud
part cloud
part cloud
clear
cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:35
7:37
7:39
7:39
7:41
7:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:00
8:59
8:57
8:54
8:52
8:51
8:49
 mm
Temp °C
17
17
17
18
18
19
20
19
19
20
19
16
19
19
20
23
22
21
21
18
Feels °C
15
15
15
15
16
18
19
18
19
20
20
14
20
19
19
23
21
22
20
18
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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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