Porsmilin Surf Break

Lat Long: 48.36° N 4.68° W

Porsmilin Surf Forecast and Surf Report

Issued: 1 pm 31 Aug 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 31 Aug 2026:

  • Best quality surf: Saturday 5 Sep, 5AM (local time) - 6.5ft (2.0m), 13s period, WNW swell with offshore winds.
  • Most powerful swell: Saturday 5 Sep, 5AM (local time) - 6.5ft (2.0m), 13s period, WNW swell with 1,363 kJ wave energy.
  • Next surfable swell (1★+): Monday 31 Aug, 11PM (local time) - 7ft (2.2m), 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 11PM. The primary swell is predicted to be 2.2m 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 2.0m 13s and forecast to arrive on Saturday (Sep 05) at 5AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 2s period and expected on Saturday (Sep 05) at 11PM.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Mon 31st Aug)7ft (2.2m) 10s
Best Surf 5AM (Sat 5th Sep)6.5ft (2.0m) 13s
Most Powerful 5AM (Sat 5th Sep)6.5ft (2.0m) 13s

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


The Lowdown

Alright mate, it’s been a bit flat and wonky here for a while near the start of the window, but there’s some proper swell on the way. The first real standout arrives on Saturday, the 5th of September, and there’s a very interesting run around the second weekend, especially the 14th.

The water temp at Porsmilin is sitting around 63°, right on the money for this time of year. Not freezing, not warm, just what you’d expect for late summer.

Now, through the first week the winds have been messy or cross-shore, nothing clean enough to make the most of the little bumps running through. There are a few slight improvements—like Friday afternoon the 4th—but it’s still weak and cross-shore, not worth getting wet for. The period is short, below 8 seconds on some days, making it even less appealing.

Then, Saturday the 5th of September morning is your first proper call. Swell hits around 6 ft out of the WNW, period stretching out to 13 seconds, giving a nice groundswell feel. Combined energy is strong, sitting at 1159. The wind is light at 10 km/h from the ENE, cross-offshore, so expect clean walls. This is the kind of session you paddle out early for. The break is a sandbar setup, reasonably consistent, sometimes crowded—so if you’re keen, better get in before the pack. The swell direction matches the optimum SW, so the bank will line up. Saturday afternoon stays clean as the wind switches NNW, still cross-offshore. Swell drops a touch to 6 ft, period 12 seconds, energy still strong at 896.

After that, the surf gets inconsistent and sloppy again until Thursday the 10th of September, in the afternoon. Solid 7 ft swell from the W, 9-second period, moderate energy (697) and the wind turns WNW cross-offshore. That’s clean and punchy, solid intermediate conditions. A notch above that is Friday morning, the 11th of September. You’ve got clean 6 ft WNW groundswell, 9-second period, with a NE offshore breeze at 15 km/h. That’s delicious for a sandbar. Combined energy sits at 488.

Then comes the real heavy hitter: Monday morning, the 14th of September. The swell pumps up to 7 ft out of the W, period 8 seconds, but the wind is non-existent with glassy conditions. Energy is very strong at 729. That is a classic morning session—clean, no wind, and solid. That same afternoon the swell builds to 8 ft from the WNW with 10-second period. Light cross-onshore creates small ripples, but the power (1302) is through the roof. This is more for experienced surfers, as over 8 ft at a beach break can push you around.

Tuesday the 15th of September stays chunky: 8 ft WNW at 11 seconds in the morning, and 8 ft in the afternoon, both with light winds. Combined energy hits 1554 in the morning—that’s serious grunt. That long-period groundswell (over 11 seconds) will hold its shape well on a sandbar, but be ready for lulls between sets. Not one for beginners at this size.

Overall, the best on offer is the morning of the 5th of September and Monday the 14th of September. The 5th is cleaner and more user-friendly, the 14th has more raw power.

Rusty

Short Range Forecast

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

Days 5-7 Weather Summary

Mostly dry. Warm (max 21°C on Sun morning, min 15°C on Sat morning). Wind will be generally light.

Mon
31
Tuesday
1
Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
3
1
0
0
0
0
0
0
0
0
0
1
3
3
2
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)
2.4
W
10
2
WNW
10
1.3
WNW
9
1
W
9
0.8
WNW
8
0.8
W
8
1
W
7
1.4
W
8
1.1
W
8
1
W
7
1.2
W
8
1.3
W
9
1.3
WNW
9
1.9
WNW
14
1.9
WNW
13
1.8
WNW
12
1.5
WNW
11
0.9
WNW
10
0.7
NW
10
0.5
NW
9
Wave Graph
Metric surfscale
Energy kJ
1138
712
283
162
90
80
108
217
137
97
195
251
264
1261
1152
889
499
171
94
39
Wind (km/h)
20
WNW
5
NW
10
SSW
15
WSW
10
WSW
20
SW
25
SSW
15
SW
15
SW
20
SW
15
SW
15
WSW
15
WNW
10
N
10
ENE
15
NNW
15
E
10
SE
15
SW
0
W
Wind State
cross
glassy
on
cross-on
cross-on
on
on
cross-on
on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross
on
glassy
High Tide
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
1:22PM4.40m
2:18AM4.37m
Low Tide
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
7:02AM1.85m
7:58PM1.66m
part cloud
part cloud
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clear
clear
clear
part cloud
part cloud
clear
part cloud
cloud
part cloud
clear
clear
clear
part cloud
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:35
7:35
7:37
7:39
7:39
7:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:02
9:00
8:59
8:57
8:54
8:52
8:51
 mm
Temp °C
18
17
17
17
17
17
18
19
19
19
19
19
20
18
16
19
20
21
25
22
Feels °C
15
15
16
16
15
16
15
17
18
17
18
19
20
18
15
16
17
17
23
20
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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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