Porsmilin Surf Break

Lat Long: 48.36° N 4.68° W

Porsmilin Surf Forecast and Surf Report

Issued: 1 am 18 Aug 2026 (local time)

Forecast update in  hr  min

Today's Porsmilin sea temperature is
18.3° 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 18 Aug 2026:

  • Best quality surf: Wednesday 19 Aug, 11AM (local time) - 4.5ft (1.3m), 10s period, WNW swell with offshore winds.
  • Most powerful swell: Thursday 20 Aug, 11AM (local time) - 7ft (2.2m), 9s period, WNW swell with 848 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 19 Aug, 8AM (local time) - 3.5ft (1.1m), 7s period with NW 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 Wednesday (Aug 19) at 8AM. The primary swell is predicted to be 1.1m and 7s period with a secondary swell of 0.3m and 8s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Porsmilin in the next 16 days are 2.2m 9s and forecast to arrive on Thursday (Aug 20) at 11AM. 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 Saturday (Aug 22) at 8PM.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Wed 19th Aug)3.5ft (1.1m) 7s
Best Surf11AM (Wed 19th Aug)4.5ft (1.3m) 10s
Most Powerful11AM (Thu 20th Aug)7ft (2.2m) 9s

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


The Lowdown

Alright, Rusty here again, looking at what’s shaping up at Porsmilin. Water temp is about 65°F, right where you’d expect for this time of year – nothing weird going on.

The start of the run is rough. Nothing worth suiting up for on Tuesday the 18th or Wednesday the 19th morning. But Wednesday the 19th morning is when the switch flips. We’ve got clean, offshore wind out of the NNE, and a 4ft swell from the WNW rolling in with a 10-second period. The combined energy is moderate at 308. The swell direction matches the spot’s sweet spot from the SW, so the sandbar should be lined up nicely. This is the first real standout window – clean, rideable, and perfect for an intermediate surfer.

Wednesday afternoon stays good at 5ft, period jumps to 11 seconds (groundswell), and the energy bumps up to 519. The wind is cross-off from the NW, still clean. That longer period might make the wave a touch walled-up on a sandbar, but it’s quality surf.

Thursday the 20th gets bigger: 7ft in the morning with a shorter 9-second period. The energy hits 856, which is strong. Wind goes cross-shore, so it’ll be lumpy. This is getting into big-wave territory – only for experienced folks, and the conditions won’t be perfect.

Friday the 21st morning is another real gem. Swell is a manageable 5ft from the WNW, with a light cross-off breeze from the NNW. The energy is 387 – not too heavy, not too light. The wind is light, conditions will be clean and glassy. This is a prime session for intermediates who want a fun, mellow wave.

After that, the surf fades fast. Saturday the 22nd morning is tiny at 2ft, and from Saturday afternoon through Tuesday the 25th morning, it’s mostly flat or junk. That’s about a three-day dry spell.

A little pulse of 4ft shows up Tuesday the 25th afternoon, but the wind is onshore and gusty, making a mess. That poor pattern sticks around through the end of August. Monday the 31st of August afternoon pushes 8ft from the west, but it’s howling onshore – that’s kite-surfing weather, not for paddlers.

Into September, Tuesday the 1st brings a big 10ft swell from the west with a 10-second period and massive energy of 1570. But the wind is onshore, near-gale strength by the afternoon. Only experts should even think about it, and it’ll be a beast.

The last bright spot is Wednesday the 2nd of September. The swell drops to 6ft, still good period at 11 seconds, and the wind swings offshore from the north. Energy is still high at 1212, but the conditions will be clean. That’s a promising long-range option, more of a “keep your eye on it” situation.

Best bets: Wednesday the 19th morning for clean, fun surf, and Friday the 21st morning for a glassy, light-wind session. The 2nd of September could be a banger if it holds.

Rusty.

Short Range Forecast

Heavy rain (total 22mm), heaviest during Wed morning. Warm (max 20°C on Tue afternoon, min 16°C on Wed morning). Wind will be generally light.

Days 4-6 Weather Summary

Some drizzle, heaviest during Sat afternoon. Very mild (max 19°C on Sat afternoon, min 15°C on Fri night). Mainly fresh winds.

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
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
2
1
0
1
2
2
2
1
1
1
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)
0.8
WNW
6
0.7
NW
6
0.9
WNW
6
1.3
WNW
10
1.5
WNW
11
1.7
WNW
10
2.2
WNW
9
2.1
WNW
10
1.9
WNW
10
1.4
WNW
10
1.4
WNW
9
1.2
WNW
8
0.6
W
10
0.5
W
9
0.4
W
9
0.3
W
9
0.3
W
9
0.3
W
9
0.3
W
8
0.3
W
8
0.3
W
8
Wave Graph
Metric surfscale
Energy kJ
40
36
74
290
499
574
848
799
651
370
311
176
68
45
25
14
14
13
12
12
12
Wind (km/h)
20
WSW
20
W
15
WNW
20
NNE
20
NW
25
WSW
25
WNW
20
WNW
10
NW
10
NNW
20
NNW
10
NE
15
NNE
25
NE
20
NNE
20
NNE
25
NNW
15
N
5
NNW
15
WNW
15
SE
Wind State
cross-on
cross-on
cross
off
cross-off
cross-on
cross
cross
cross-off
cross-off
cross-off
off
off
off
off
off
cross-off
off
cross-off
cross
cross-on
High Tide
9:22AM5.22m
9:40PM5.06m
10:00AM4.81m
10:21PM4.57m
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
Low Tide
3:44PM0.99m
4:04AM1.19m
4:24PM1.42m
4:45AM1.64m
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
part cloud
cloud
part cloud
heavy rain
rain showers
part cloud
rain showers
part cloud
part cloud
part cloud
clear
clear
part cloud
rain showers
part cloud
clear
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:15
7:16
7:18
7:20
7:20
7:22
7:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:28
9:25
9:23
9:22
9:21
9:19
9:16
 mm
17
4
1
1
Temp °C
19
20
19
17
18
18
18
18
18
16
17
17
17
19
18
18
18
17
16
16
16
Feels °C
18
20
19
18
15
15
14
14
16
15
15
13
15
16
12
14
13
13
15
14
15
  • 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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