Porsmilin Surf Break

Lat Long: 48.36° N 4.68° W

Porsmilin Surf Forecast and Surf Report

Issued: 7 pm 02 Sep 2026 (local time)

Forecast update in  hr  min

Today's Porsmilin sea temperature is
17.2°C
0.4° 

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


Porsmilin surf forecast from 2 Sep 2026:

  • Best quality surf: Saturday 5 Sep, 8AM (local time) - 7ft (2.1m), 12s period, WNW swell with cross-offshore winds.
  • Most powerful swell: Saturday 5 Sep, 8AM (local time) - 7ft (2.1m), 12s period, WNW swell with 1,368 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 2.1m 12s and forecast to arrive on Saturday (Sep 05) at 8AM. 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+) 5PM (Fri 4th Sep)5.5ft (1.7m) 9s
Best Surf 8AM (Sat 5th Sep)7ft (2.1m) 12s
Most Powerful 8AM (Sat 5th Sep)7ft (2.1m) 12s

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


The Lowdown

Alright folks, Rusty here. Let’s have a proper look at what Porsmilin’s got cookin’ for us over the next couple of weeks. It’s a bit of a slow burner, so hang tight. The good news is, there’s a clear standout window that’s worth planning for.

We start off with a flat spell. The first couple of days are a write-off. Wednesday the 2nd and Thursday the 3rd are dominated by that strong SW wind, making a mess of things—pure onshore junk, with swell energy weak (241) and choppy as all hell. Friday the 4th morning is still rubbish, but keep an eye on the afternoon. The wind swings around to a light NNW cross-off, and the swell starts to clean up. We’re looking at 6ft of WNW groundswell with a 9-second period, and you can feel the energy building to (513). It’s the first sign of life.

Now, Saturday the 5th. This is the highlight of the whole outlook. Saturday morning is the real gem. Clear skies, a light ENE breeze keeping it glassy—a proper cross-off wind. Swell is 6ft from the WNW, with a period hitting 13 seconds, so plenty of grunt behind it. The combined energy is pumping at (1159), which is a nice, strong, clean pulse. Porsmilin is a sandbar setup, fairly exposed to this SW optimum, and it’s gonna be working beautifully. This is the one to get wet for. The afternoon holds up too, with similar 6ft swell and light NNW winds, still clean.

Sunday the 6th drops right back off. Swell plummets to under 3ft, and the wind turns onshore again. Not worth paddling out.

The following week gets a bit rowdy. Monday the 7th morning sees a jump to 7ft from the west with a 12-second period and energy of (1355), so there’s plenty of water moving. But the wind is cross-shore and lumpy, making it messy. That size is pushing past beginner territory, and the conditions are marginal. Tuesday the 8th is similar—big but rough, with fresh cross-shore winds creating a lumpy cross-chop. This is more of a kite-surfing setup than a clean paddle session.

We get a bit of a lull from Wednesday the 9th through the weekend of the 13th. Mostly small, weak swell with onshore or cross-shore winds. Not much to get excited about—just a few knee-high dribblers.

Then, week two rolls around. Monday the 14th shows a new pulse coming in. 5ft from the WNW, period up to 12 seconds, energy around (650). Winds are light, but the conditions are still a bit marginal. Tuesday the 15th and Wednesday the 16th are where it gets interesting again. Tuesday afternoon has 4ft from the WNW with an 11-second period, but the wind is a light NW cross-off, keeping things clean. The energy is moderate (390) but the quality is there. Wednesday morning the 16th looks even better—a glassy offshore NNE breeze at just 3 mph, with 3ft groundswell. That’s proper clean conditions for a sneaky session. After that, it fades out to tiny surf for the rest of the period.

Water temp is sitting around 63°, which is about average for the start of September here. No crazy anomalies, just your standard autumn cool-down.

So, if you’re picking your moment, Saturday the 5th is your day. Clear, glassy, clean groundswell in the chest-to-head-high range. That’s the standout. The second-week window on Tuesday the 15th and Wednesday the 16th is worth a look for a quieter, cleaner session, but it’s smaller and less certain this far out. The rest is either flat, blown out, or too big and messy for a good paddle.

Stay stoked, and I’ll see you out there.

Rusty

Short Range Forecast

Mostly dry. Warm (max 20°C on Thu afternoon, min 15°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 24°C on Sun afternoon, min 16°C on Mon morning). Mainly fresh winds.

Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
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
2
3
3
3
1
0
0
0
1
0
0
1
1
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
8
1.3
W
8
1.3
W
8
1.3
W
8
1.5
W
8
1.7
WNW
9
2
WNW
13
2
WNW
13
1.8
WNW
12
1.3
WNW
11
1
WNW
10
0.7
WNW
9
0.5
W
9
2.2
W
12
2
W
11
1.6
W
10
2
WNW
9
2.3
WNW
10
2.1
WNW
10
Wave Graph
Metric surfscale
Energy kJ
249
191
203
241
309
408
1301
1301
889
412
183
75
43
1323
917
480
631
1086
867
Wind (km/h)
20
SW
20
SW
20
SW
25
SW
20
WSW
15
NW
10
N
10
ENE
15
N
15
E
15
SSE
20
SW
20
WSW
25
WNW
25
W
30
WNW
20
WNW
25
W
20
WNW
Wind State
cross-on
on
cross-on
cross-on
cross-on
cross-off
off
cross-off
off
cross-off
cross-on
on
cross-on
cross
cross-on
cross
cross
cross
cross
High Tide
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
3:57PM5.19m
4:29AM5.22m
Low Tide
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
9:50AM1.26m
10:25PM0.80m
part cloud
cloud
part cloud
part cloud
part cloud
cloud
clear
clear
clear
part cloud
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:37
7:39
7:39
7:41
7:43
7:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:59
8:57
8:54
8:52
8:51
8:49
8:46
 mm
Temp °C
19
19
20
20
19
20
17
15
19
21
23
24
19
17
17
17
17
17
16
Feels °C
18
18
19
20
18
19
16
13
15
18
19
19
18
14
14
14
12
12
12
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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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