Porsmilin Surf Break

Lat Long: 48.36° N 4.68° W

Porsmilin Surf Forecast and Surf Report

Issued: 1 am 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Porsmilin sea temperature is
18.2° C
0.2° 

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


Porsmilin surf forecast from 20 Aug 2026:

  • Best quality surf: Thursday 20 Aug, 11PM (local time) - 7ft (2.2m), 10s period, WNW swell with cross-offshore winds.
  • Most powerful swell: Thursday 20 Aug, 5PM (local time) - 7.5ft (2.3m), 10s period, WNW swell with 963 kJ wave energy.
  • Next surfable swell (1★+): Thursday 20 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 Thursday (Aug 20) at 11PM. The primary swell is predicted to be 2.2m and 10s 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 10s and forecast to arrive on Thursday (Aug 20) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Sunday (Aug 23) at 8PM.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Thu 20th Aug)7ft (2.2m) 10s
Best Surf11PM (Thu 20th Aug)7ft (2.2m) 10s
Most Powerful 5PM (Thu 20th Aug)7.5ft (2.3m) 10s

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


The Lowdown

G’day, Rusty here. Gotta be straight with you – for a stretch, it’s looking pretty grim. We’ve got a real quiet start with no good surf on the cards for the first few days. The first proper chance to get wet won’t come until the morning of Friday, 21st August.

Alright, let’s get into it. The only spot in the mix is Porsmilin, a sandbar set-up that’s fairly consistent when conditions line up. The water’s running at 65°F so far, about average for this time of year.

The first glimmer of hope is on Friday, 21st August, in the morning. The swell is a solid 6ft from the WNW with a period of 10 seconds – that’s a nice bit of groundswell with decent energy (568). The wind is a light breeze out of the NW, blowing cross-offshore. That’s going to keep the surface clean and the lines will have some shape. It’s not a monster, but it’ll be a good session for an intermediate. The afternoon shift loses a bit of quality as the wind picks up to a moderate breeze, so I’d aim for that early window.

Saturday morning, 22nd August, the swell drops right off to 3ft from the NW. The wind is light and offshore from the NE, so it’ll be clean, but it’s tiny. There’s barely any energy (122). It’s surfable, but you’d have to be keen on a longboard or a foamie just for the glide.

After that, things go flat and ugly from Saturday afternoon all the way through to the end of August. We’re talking days of onshore wind, lumpy chop, and barely any wave height. There’s a big gap where nothing’s worth paddling out for. Some of those late-August days see the swell pump back up over 7ft, even hitting 10ft on Monday the 31st of August, but the wind is straight cross-on or onshore and the conditions are just rotten. The energy gets huge (over 2700 at times) but with that wind, it’s just a washing machine. Not worth it.

Now, here’s the standout in the whole outlook, and it’s a long-range one, so keep an eye on it. Tuesday morning, 1st September is looking special. The swell is a solid 6ft from the WNW with a 10-second period – good energy (690). But the real story is the wind: glass. Dead flat. Offshore from the NW. That’s going to put Porsmilin in pristine condition. The water will be silky smooth. This is the best on offer across the whole 16 days. It’ll be clean, punchy and a proper session for anyone who can handle a 6ft wave.

Wednesday morning, 2nd September is also worth a mention. The swell is smaller at 4ft from the W, period a short 8 seconds, but the wind is light and cross-off from the NW. It’ll be clean again, just not as much grunt. A good option if you missed the Tuesday morning window.

So, bottom line: this run is mostly a write-off until the tail end. The absolute pick of the bunch is that glassy Tuesday morning on the 1st of September at Porsmilin. Lock it in.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Thu morning. Warm (max 20°C on Sat afternoon, min 14°C on Sat morning). Wind will be generally light.

Days 4-6 Weather Summary

Some drizzle, heaviest during Mon night. Warm (max 25°C on Mon afternoon, min 17°C on Sun morning). Winds decreasing (fresh winds from the NE on Sun night, light winds from the N by Mon night).

Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
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
1
3
2
1
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.3
WNW
9
2.3
WNW
10
2.1
WNW
10
1.7
WNW
10
1.7
WNW
9
1.4
NW
8
0.8
NW
8
0.5
W
9
0.4
W
9
0.3
W
8
0.4
WSW
10
0.4
WSW
10
0.4
WSW
9
0.4
SW
9
0.4
SW
8
0.7
SW
9
0.8
SW
9
2.1
SSW
8
1.9
SW
8
1.3
SSW
7
0.9
WNW
11
Wave Graph
Metric surfscale
Energy kJ
848
963
832
551
421
235
67
43
24
13
32
36
32
25
17
79
91
616
481
183
170
Wind (km/h)
25
WNW
25
WNW
15
NW
10
NW
20
NNW
20
N
10
NE
20
N
25
ENE
30
ENE
30
NE
30
ENE
30
ENE
10
SSW
15
SSE
20
SSE
25
SW
20
SSE
35
S
15
SW
10
SW
Wind State
cross
cross
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
High Tide
10:44AM4.39m
11:13PM4.13m
11:47AM4.03m
00:35AM3.82m
1:26PM3.88m
2:22AM3.82m
2:58PM4.05m
3:35AM4.08m
3:57PM4.40m
4:22AM4.44m
4:39PM4.80m
5:00AM4.82m
5:14PM5.19m
Low Tide
5:13PM1.83m
5:39AM2.03m
6:20PM2.14m
6:56AM2.27m
7:54PM2.24m
8:33AM2.23m
9:21PM2.03m
9:46AM1.94m
10:19PM1.66m
10:35AM1.56m
11:01PM1.27m
11:13AM1.18m
11:36PM0.89m
rain showers
part cloud
part cloud
clear
clear
clear
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
part cloud
clear
clear
thunderstorm
thunderstorm
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:18
7:20
7:20
7:22
7:24
7:24
7:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:23
9:22
9:21
9:19
9:16
9:15
9:13
 mm
1
1
4
2
1
Temp °C
18
18
18
16
17
16
16
20
20
19
24
22
21
25
21
20
20
19
19
19
18
Feels °C
14
14
15
14
14
12
14
17
16
13
17
15
14
19
20
18
16
18
13
15
17
  • 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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