Porsmilin Surf Break

Lat Long: 48.36° N 4.68° W

Porsmilin Surf Forecast and Surf Report

Issued: 7 am 23 Aug 2026 (local time)

Forecast update in  hr  min

Today's Porsmilin sea temperature is
17.7°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 23 Aug 2026:

  • Best quality surf: Friday 28 Aug, 11PM (local time) - 11ft (3.5m), 9s period, W swell with cross-onshore winds.
  • Most powerful swell: Saturday 29 Aug, 5AM (local time) - 11ft (3.5m), 10s period, W swell with 2,508 kJ wave energy.
  • Next surfable swell (1★+): Friday 28 Aug, 11PM (local time) - 11ft (3.5m), 9s period with W 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 (Aug 28) at 11PM. The primary swell is predicted to be 3.5m and 9s period. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Porsmilin in the next 16 days are 3.5m 10s and forecast to arrive on Saturday (Aug 29) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Sunday (Aug 23) at 8PM.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Fri 28th Aug)11ft (3.5m) 9s
Best Surf11PM (Fri 28th Aug)11ft (3.5m) 9s
Most Powerful 5AM (Sat 29th Aug)11ft (3.5m) 10s

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


The Lowdown

Alright, let’s break it down for Porsmilin – a sandbar break that’s fairly exposed to the swell and likes it coming from the southwest. Water temp is about 64°F, right around normal for this time of year.

First week is a total bummer. From Sunday the 23rd of August through the end of the month, it’s pretty much flat and poor. Swell is tiny – under 2ft – with short periods and weak energy. Sunday the 23rd and Monday the 24th have some clean stretches but nothing to get excited about. Tuesday the 25th sees a little more energy (moderate energy values around 118 to 173), but the wind is onshore or cross-on, so it’s messy.

Things pick up in size Thursday the 27th of August – 6ft swell with moderate energy (597), but it’s onshore and there’s a risk of thunderstorms. Not a good combo. Friday the 28th gets bigger – 8ft to 8ft – with strong energy (1484), but the wind is a near-gale cross-on, so it’s blown out. That’s more of a kite-surfing day. Saturday the 29th is even bigger – 12ft swell with strong energy (1915) – but again, fresh cross-onshore winds and lumpy. Expert territory size-wise, but the wind kills it.

Sunday the 30th drops back to 5ft, moderate energy (373), but still cross-on and choppy. Not your day.

Monday the 31st of August is the first real glimmer – 3ft from the northwest, period 7 seconds, moderate energy (104), and light cross-off winds from the NNW. It’s clean, but only just surfable – a 1 out of 10. Better than nothing, but barely.

Then another quiet patch: Tuesday the 1st of September and Wednesday the 2nd are tiny again – 1ft to 1ft – with weak energy (23 to 41). Not worth a paddle.

The real standout – the only one – is Sunday the 6th of September. Morning sees 12ft from the WNW with a 12-second period, strong energy (2864). The afternoon is the same size but with 11-second period and strong energy (3118). The wind is cross-shore, moderate breeze, and the wave comment says “wind and tide favorable, but the swell is predicted to be too big for this break.” That’s a big, powerful groundswell – very long period – which can make things wall up at a beach break, but it could still produce some solid sets. This is strictly for experts – 12ft is serious. But it’s the best on offer in the whole 16-day window. Just remember it’s a long-range call, so keep an eye on it.

Monday the 7th of September is still huge – 12ft to 13ft, with the afternoon hitting an 18-second period and very strong energy (9368). But the wind is strong cross-shore and messy, so it’s blown out.

So here’s the bottom line: the first week is a washout. There’s a long gap of poor to no surf from the 23rd of August until the 31st, with only a tiny clean window on the 31st. Another gap until the 4th of September, which is blown out. The only real hope is Sunday the 6th of September – big, powerful, and clean-ish, but expert-only. If you’re not an expert, you’re better off waiting for the next swell window.

Forecasts can change, so stay tuned.

Rusty

Short Range Forecast

Mostly dry. Warm (max 24°C on Mon afternoon, min 17°C on Sun morning). Winds decreasing (fresh winds from the NE on Sun night, calm by Mon afternoon).

Days 4-6 Weather Summary

Heavy rain (total 55mm), heaviest during Wed night. Warm (max 20°C on Wed afternoon, min 16°C on Wed afternoon). Winds increasing (light winds from the SSE on Wed morning, near gales from the WSW by Fri morning).

Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)
0.3
SW
14
0.5
WSW
11
0.4
WSW
10
0.6
SSE
6
0.4
SW
9
0.4
SW
8
0.5
WNW
11
0.7
WNW
10
0.6
WNW
10
0.6
WNW
9
0.9
SSW
5
1.8
SW
8
1.8
SW
8
1.6
W
9
1.9
SW
8
2.3
SW
10
2.5
WSW
9
3.5
W
10
3.5
W
10
3
WNW
9
1.8
WNW
8
Wave Graph
Metric surfscale
Energy kJ
30
74
38
25
32
25
66
88
72
61
37
375
418
384
418
1028
1027
2471
1915
1188
444
Wind (km/h)
25
ENE
30
NE
30
ENE
30
ENE
0
NW
15
SE
10
S
20
SW
15
SW
25
SSE
25
SW
20
WSW
15
SSW
25
SSW
30
SSW
55
WSW
45
W
25
WSW
30
WSW
35
W
35
WSW
Wind State
cross-off
cross-off
cross-off
cross-off
glassy
cross
cross-on
on
on
cross-on
on
cross-on
on
on
on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
High Tide
2:58PM4.05m
3:35AM4.08m
3:57PM4.40m
4:22AM4.44m
4:39PM4.80m
5:00AM4.82m
5:14PM5.19m
5:33AM5.17m
5:46PM5.54m
6:04AM5.47m
6:17PM5.82m
6:35AM5.71m
6:48PM6.00m
Low Tide
8:33AM2.23m
9:21PM2.03m
9:46AM1.94m
10:19PM1.66m
10:35AM1.56m
11:01PM1.27m
11:13AM1.18m
11:36PM0.89m
11:47AM0.84m
00:08AM0.57m
12:19PM0.57m
00:40AM0.33m
12:51PM0.38m
1:11AM0.19m
part cloud
part cloud
part cloud
part cloud
cloud
clear
part cloud
clear
part cloud
part cloud
thunderstorm
rain showers
thunderstorm
thunderstorm
thunderstorm
rain showers
thunderstorm
rain showers
rain showers
rain showers
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:22
7:24
7:24
7:26
7:28
7:28
7:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:19
9:16
9:15
9:13
9:10
9:08
9:07
 mm
18
20
2
5
5
2
1
2
1
1
Temp °C
20
23
21
21
24
21
19
20
19
19
20
18
18
18
17
17
18
18
17
18
18
Feels °C
16
19
14
15
21
19
19
20
18
17
16
16
15
14
12
9
11
14
12
11
13
  • Map Icons:
  • Break
  • 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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