Surf Forecasts:
Porsmilin surf forecast from 26 Aug 2026:
- Best quality surf: Tuesday 1 Sep, 11PM (local time) - 5ft (1.5m), 9s period, WNW swell with cross-offshore winds.
- Most powerful swell: Saturday 29 Aug, 11PM (local time) - 10ft (3.0m), 10s period, W swell with 1,854 kJ wave energy.
- Next surfable swell (1★+): Friday 28 Aug, 2AM (local time) - 2.5ft (0.8m), 7s 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 2AM. The primary swell is predicted to be 0.8m and 7s period with a secondary swell of 0.8m and 6s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Porsmilin in the next 16 days are 3.0m 10s and forecast to arrive on Saturday (Aug 29) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Fri 28th Aug) | 2.5ft (0.8m) 7s |
| Best Surf | 11PM (Tue 1st Sep) | 5ft (1.5m) 9s |
| Most Powerful | 11PM (Sat 29th Aug) | 10ft (3.0m) 10s |
Table - best surf conditions forecast for Porsmilin over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let's get into it. The next 16 days are a bit of a mixed bag, with a lot of slop to wade through before we get to the good stuff. We’ll be sitting on our hands for a while, but I can see a real window of opportunity opening up later.
First up, no talk of the water temp until we get a sniff of surf. The first real standout is a long way off, but it’s a cracker. On Saturday, September 5th, Porsmilin is going to be the place to be. The water’s sitting at 65°F, which is about bang on average for this time of year, so no drama there. We’ve got a solid 7ft swell rolling in from the west-northwest, with a period of 11 seconds – that’s a proper groundswell with a bit of push. The combined energy will be strong (995), so expect some punch. The wind is the real story here: a light 5 km/h (3 mph) from the east-northeast, blowing clean cross-offshore. That’s glassy, clean conditions. The morning session will be clean, and the afternoon goes glassy with a 6ft W swell. This is the best of the whole window, no question.
Now, Sunday, September 6th, is a write-off. A strong onshore wind from the southwest at 30 km/h (19 mph) will trash the 4ft NW swell. Not worth a look.
Monday, September 7th, has a bit of hope. The afternoon sees a 7ft W swell and a light 10 km/h (6 mph) wind from the north-northwest, giving us clean, cross-offshore conditions. The energy is moderate (609), so it’s a solid option, but it’s not the standout of the week.
We then hit another patch of poor to marginal conditions right through to the end of the second week. The only real highlight is a late call for Thursday, September 10th. An 8ft W swell with an 11-second period rolls in, giving us a very strong energy reading (1437). The wind is a fresh 30 km/h (19 mph) from the north-northeast, blowing offshore. That’s a lot of wind for a clean face, but it’s offshore, so it will be hollow. This one is for the experts only – that swell size is serious, and the cross-offshore breeze will make it challenging. It’s a promising but less certain long-range call.
Overall, it’s a long wait, but the early September window is worth the patience. Get your board ready for the 5th, and keep an eye on the 10th.
Rusty.
Short Range ForecastModerate rain (total 10mm), heaviest on Wed night. Warm (max 21°C on Wed afternoon, min 17°C on Wed night). Winds increasing (calm on Thu night, strong winds from the SSW by Sat morning). | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Sun afternoon. Very mild (max 19°C on Sat afternoon, min 17°C on Sun night). Winds decreasing (strong winds from the SW on Sat afternoon, light winds from the W by Mon night). | |||||||||||||||||||
Wed 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | SSW 6 | W 8 | SW 7 | SW 6 | WNW 10 | WSW 7 | W 6 | WSW 7 | SW 8 | WSW 8 | W 10 | WNW 10 | WSW 8 | W 9 | W 9 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 34 | 29 | 54 | 97 | 61 | 91 | 202 | 277 | 703 | 1306 | 1418 | 681 | 589 | 1185 | 1075 | 901 | 551 | 283 | 270 | 371 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross-on | glassy | cross-on | cross-on | on | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross |
High Tide | 5:14PM5.19m | 5:33AM5.17m | 5:46PM5.54m | 6:04AM5.47m | 6:17PM5.82m | 6:35AM5.71m | 6:48PM6.00m | 7:06AM5.85m | 7:20PM6.06m | 7:38AM5.88m | 7:53PM5.99m | 8:13AM5.78m | 8:30PM5.79m | |||||||
Low Tide | 11:36PM0.89m | 11:47AM0.84m | 00:08AM0.57m | 12:19PM0.57m | 00:40AM0.33m | 12:51PM0.38m | 1:11AM0.19m | 1:23PM0.29m | 1:43AM0.18m | 1:56PM0.31m | 2:16AM0.29m | 2:31PM0.45m | 2:52AM0.52m | |||||||
 |  |  | | | |  |  |  | | | |  |  | | | | | | | |
 | — | — | 7:28 | — | — | 7:28 | — | — | 7:31 | — | — | 7:31 | — | — | 7:33 | — | — | 7:35 | — | — |
 | — | 9:13 | — | — | 9:10 | — | — | 9:08 | — | — | 9:07 | — | — | 9:05 | — | — | 9:02 | — | — | 9:00 |
mm | — | 6 | — | — | 1 | — | — | — | 3 | — | — | — | 2 | 1 | — | — | — | — | — | — |
Temp °C | 21 | 21 | 18 | 19 | 19 | 18 | 18 | 18 | 19 | 19 | 19 | 18 | 19 | 18 | 18 | 18 | 17 | 17 | 18 | 18 |
Feels °C | 20 | 21 | 16 | 17 | 18 | 16 | 14 | 14 | 14 | 12 | 16 | 16 | 14 | 13 | 15 | 16 | 15 | 15 | 15 | 17 |
Swell 1 Height (m) Direction Period (s) | SSW 6 | W 8 | SW 7 | SW 6 | SSW 6 | WNW 9 | WNW 9 | WNW 8 | — | — | W 10 | WNW 10 | — | — | W 9 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | WNW 9 |
| kJ | 34 | 29 | 54 | 97 | 49 | 76 | 47 | 27 | — | — | 1418 | 681 | — | — | 1075 | 901 | 551 | 283 | 270 | 371 |
Swell 2 Height (m) Direction Period (s) | W 8 | SW 5 | S 5 | W 8 | W 7 | SW 11 | S 11 | — | — | — | SSW 7 | — | — | — | — | — | — | SW 18 | SW 16 | SW 16 |
| kJ | 33 | 7 | 13 | 45 | 61 | 5 | 2 | — | — | — | 101 | — | — | — | — | — | — | 12 | 11 | 10 |
Swell 3 Height (m) Direction Period (s) | SW 12 | NNE 5 | W 8 | WNW 10 | WNW 10 | S 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | S 11 |
| kJ | 6 | 2 | 31 | 40 | 60 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 |
Wind waves Height (m) Direction Period (s) | — | S 5 | — | — | — | WSW 7 | W 6 | WSW 7 | SW 8 | WSW 8 | — | SSW 7 | WSW 8 | W 9 | — | — | — | — | — | — |
| kJ | — | 25 | — | — | — | 91 | 202 | 277 | 703 | 1306 | — | 93 | 589 | 1185 | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 39 | 4 | 529 | 63 | 2 | 2 | 461 | 538 | 36 | 416 | 518 | 10 | 36 | 385 | 531 | 2 | 2 | 1 | 36 | 63 |
Best forecast wave conditions in Finistere - Brittany | ||||||||||||||||||||
Best forecast wave conditions in France | ||||||||||||||||||||
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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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