Porsmilin Surf Break

Lat Long: 48.36° N 4.68° W

Porsmilin Surf Forecast and Surf Report

Issued: 7 pm 03 Sep 2026 (local time)

Forecast update in  hr  min

Today's Porsmilin sea temperature is
17.4°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 3 Sep 2026:

  • Best quality surf: Saturday 5 Sep, 11AM (local time) - 7ft (2.1m), 13s period, WNW swell with cross-offshore winds.
  • Most powerful swell: Monday 7 Sep, 2PM (local time) - 7.5ft (2.3m), 13s period, W swell with 1,712 kJ wave energy.
  • Next surfable swell (1★+): Friday 4 Sep, 5PM (local time) - 5.5ft (1.7m), 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 5PM. The primary swell is predicted to be 1.7m and 9s period with a secondary swell of 0.1m and 14s. 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 2.3m 13s and forecast to arrive on Monday (Sep 07) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Fri 4th Sep)5.5ft (1.7m) 9s
Best Surf11AM (Sat 5th Sep)7ft (2.1m) 13s
Most Powerful 2PM (Mon 7th Sep)7.5ft (2.3m) 13s

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


The Lowdown

Alright, folks, Rusty here. Let’s break it down.

We’ve got a solid window of surf coming up here at Porsmilin, but it’s a bit of a slow cooker. The first couple of days are a write-off—Thursday afternoon through Friday morning are just messy with cross-onshore winds and choppy, poor surf. Nothing to get excited about. The water temp is sitting at about 63°, which is pretty much bang on average for this time of year, so no worries there.

The real action kicks off on Friday afternoon, 4 September. The wind swings to a cross-off from the NW at 9 mph, and we start seeing some clean lines. Swell bumps up to 6 ft from the WNW, with moderate energy pushing through (485). It’s a solid start, but it’s Saturday morning, 5 September, that’s the standout. We’re looking at 7 ft of WNW swell, a 12-second period—that’s proper groundswell—and the combined energy is pumping at 1248. Winds are light from the east at 3 mph, basically glassy. This is the best on offer. Clean, powerful, and long-period. That long period means it’ll be a bit straighter at the sandbar, but the quality is undeniable. Saturday afternoon holds at 6 ft with the same period, but the wind picks up a little from the north.

Sunday, 6 September, drops off fast. Swell drops to 3 ft and conditions turn poor. Then Monday morning, 7 September, brings another pulse: 7 ft from the west at 13 seconds, combined energy of 1592. That’s a big swell—strong energy, and with cross-off NW winds at 16 mph, it’ll be clean but powerful. That’s solidly in the expert-only zone. Tuesday, 8 September, still has some decent leftover swell at 6 ft to 6 ft, but the magic is fading.

There’s a bit of a lull from Wednesday, 9 September, through to the end of the second week. The wind turns onshore or cross, and the swell gets smaller and choppy. Not much to write home about. Then, around Monday, 14 September, we see a comeback. The wind goes offshore from the north at 6–12 mph, and we get 5 ft to 4 ft of clean, cross-off or offshore waves. Tuesday, 15 September, and Wednesday, 16 September, keep that trend going with light winds and clean 4 ft to 5 ft waves. Not huge, but clean and fun. The energy is moderate (around 300–400), so it’s more about consistency and shape.

After that, it fizzles out again. The last few days of the forecast are poor with rising winds and small, messy swell.

So, the standout is Saturday morning, 5 September. Get on it. That 7 ft, 12-second WNW groundswell with light easterly winds is the session to aim for. Monday the 7th is for the brave—big and clean, but only for the experienced. The second week offers a more mellow, clean option around the 14th to 16th, but it’s not a barnburner.

This is Porsmilin, a sandbar setup, fairly consistent. Crowds are sometimes a thing here, so on that Saturday, expect some company. The water’s average temp, no anomaly to speak of. Just good, honest surf.

Rusty.

Short Range Forecast

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

Days 5-7 Weather Summary

Some drizzle, heaviest during Tue morning. Very mild (max 19°C on Sun night, min 16°C on Tue morning). Mainly fresh winds.

Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
2
3
4
2
1
0
0
0
2
2
0
0
0
1
0
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)
1.3
W
8
1.5
W
8
1.7
WNW
9
2
WNW
13
2.1
WNW
13
1.9
WNW
12
1.5
WNW
11
1.1
WNW
10
0.9
WNW
9
0.3
WSW
16
2.1
W
13
2.2
W
12
2.3
W
11
1.6
WNW
9
1.7
WNW
9
2.2
WNW
11
1.8
WNW
10
1.7
WNW
10
2.5
W
8
Wave Graph
Metric surfscale
Energy kJ
235
317
427
1227
1481
1027
499
218
121
52
1497
1347
1242
422
440
1042
703
529
707
Wind (km/h)
25
SW
20
WSW
15
NW
10
N
10
ENE
20
NNW
20
E
15
SE
15
SW
20
WSW
20
WNW
20
WNW
25
WSW
25
WNW
25
WNW
25
WNW
20
W
25
WSW
45
SSW
Wind State
on
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
cross
on
cross-on
cross
cross
cross-on
cross
cross
cross
cross-on
cross-on
on
High Tide
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
3:57PM5.19m
4:29AM5.22m
4:47PM5.67m
Low Tide
4:23AM1.27m
4:56PM1.42m
5:30AM1.65m
6:18PM1.69m
7:02AM1.85m
7:58PM1.66m
8:37AM1.68m
9:23PM1.29m
9:50AM1.26m
10:25PM0.80m
10:44AM0.79m
11:13PM0.37m
part cloud
part cloud
cloud
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
rain showers
part cloud
clear
part cloud
cloud
heavy rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:39
7:39
7:41
7:43
7:43
7:46
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:57
8:54
8:52
8:51
8:49
8:46
8:45
 mm
1
13
Temp °C
20
19
20
17
15
18
20
21
23
19
18
17
17
17
17
17
16
16
17
Feels °C
19
17
19
16
14
15
16
17
19
19
17
15
14
12
12
12
11
12
10
  • 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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