Surf Forecasts:
Porsmilin surf forecast from 13 Sep 2026:
- Best quality surf: Sunday 20 Sep, 8PM (local time) - 6.5ft (2.0m), 13s period, WNW swell with cross-offshore winds.
- Most powerful swell: Friday 18 Sep, 8AM (local time) - 8ft (2.5m), 16s period, WNW swell with 3,211 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 2AM (local time) - 3.5ft (1.1m), 10s 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 Monday (Sep 14) at 2AM. The primary swell is predicted to be 1.1m and 10s period with a secondary swell of 0.9m and 11s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Porsmilin in the next 16 days are 2.5m 16s and forecast to arrive on Friday (Sep 18) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Tuesday (Sep 15) at 11AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 14th Sep) | 3.5ft (1.1m) 10s |
| Best Surf | 8PM (Sun 20th Sep) | 6.5ft (2.0m) 13s |
| Most Powerful | 8AM (Fri 18th Sep) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Porsmilin over the next 16 days.
The Lowdown
Alright, let’s get into it. First few days out at Porsmilin are pretty lackluster, so don't be in a rush. Sunday the 13th has a weak 1.6m WNW swell but it’s choppy and cross-on. Monday the 14th is smaller and still junky. Tuesday the 15th gets a bit cleaner with the cross-off wind, but it’s still marginal.
The first real standout is Wednesday the 16th. By the afternoon, the swell is up to 2.2m from the WNW with an 11-second period. The energy is solid (1252), and the cross-off keeps it clean. Porsmilin (Finistère) is a sandbar, fairly exposed, and this is the pick of the first week. Good push, clean lines.
Friday the 18th sees a bigger 2.5m swell but the period is short and the winds are messy. Not worth the hassle.
Then Sunday the 20th shapes up nicely. Afternoon brings 2.0m WNW swell with a 13-second period, energy at 1384, and light winds. It’s a bit cross-shore, but it’s clean and has proper groundswell. This is a good one.
But the true standout is Monday the 21st. Morning has 1.8m WNW swell, 13-second period, and light offshore ENE winds. Glassy conditions, clean waves—this is the session to plan for. Tuesday the 22nd is still okay with offshore winds, but the swell drops to 1.3m.
After that, it fades fast from the 23rd through the 25th. Tiny waves, but the offshore winds stay clean. A long dry gap.
Late in the window, Saturday the 26th and Sunday the 27th bring a longer-period WNW swell (16-17 seconds), but it’s only 1.1m to 1.6m, with strong cross-off winds. Marginal at best, and by Monday the 28th it’s petering out.
Water temp is around 17°, which is about normal for this time of year, so a full wetsuit is still needed.
So, the best bets are the 20th through the 22nd, with Monday the 21st being the pick. After that, it’s a long wait for a marginal bump. Not a stellar run, but there are a couple of decent days if you time it right.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Mon afternoon, min 15°C on Wed morning). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Thu afternoon. Very mild (max 17°C on Thu morning, min 15°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sun 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | ||||||||||||||
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) | WNW 11 | W 10 | W 9 | W 9 | W 8 | WNW 11 | WNW 10 | WNW 9 | WNW 10 | WNW 11 | WNW 11 | WNW 10 | WNW 9 | WNW 9 | WNW 15 | WNW 14 | WNW 13 | WNW 12 | WNW 12 | WNW 11 |
Wave Graph  | ||||||||||||||||||||
 kJ | 608 | 231 | 130 | 127 | 90 | 107 | 516 | 616 | 849 | 1252 | 871 | 523 | 572 | 616 | 3157 | 2661 | 1510 | 1019 | 671 | 685 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | glassy | on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 7:19PM6.13m | 7:37AM5.92m | 7:53PM5.86m | 8:09AM5.65m | 8:26PM5.48m | 8:41AM5.30m | 8:59PM5.03m | 9:15AM4.88m | 9:35PM4.56m | 9:54AM4.44m | 10:20PM4.10m | 10:49AM4.02m | 11:36PM3.73m | |||||||
Low Tide | 1:41AM0.12m | 1:56PM0.27m | 2:14AM0.42m | 2:30PM0.58m | 2:46AM0.81m | 3:04PM0.97m | 3:20AM1.24m | 3:41PM1.40m | 3:58AM1.68m | 4:27PM1.84m | 4:49AM2.09m | 5:33PM2.19m | ||||||||
 |  | | | |  | |  | | |  | |  | |  | | | | | | |
 | — | — | 7:52 | — | — | 7:54 | — | — | 7:56 | — | — | 7:56 | — | — | 7:58 | — | — | 8:00 | — | — |
 | 8:36 | — | — | 8:34 | — | — | 8:31 | — | — | 8:30 | — | — | 8:28 | — | — | 8:25 | — | — | 8:23 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — |
Temp °C | 18 | 18 | 18 | 20 | 19 | 18 | 17 | 17 | 15 | 16 | 16 | 17 | 17 | 16 | 16 | 16 | 17 | 17 | 18 | 18 |
Feels °C | 16 | 17 | 19 | 20 | 19 | 16 | 13 | 14 | 11 | 12 | 13 | 13 | 13 | 12 | 12 | 13 | 14 | 14 | 15 | 17 |
Swell 1 Height (m) Direction Period (s) | WNW 11 | W 10 | W 9 | W 9 | W 8 | WNW 11 | — | WNW 9 | WNW 10 | WNW 11 | WNW 11 | WNW 10 | WNW 9 | WNW 9 | WNW 15 | WNW 14 | WNW 13 | WNW 12 | WNW 12 | WNW 11 |
| kJ | 608 | 231 | 130 | 127 | 90 | 107 | — | 616 | 849 | 1252 | 871 | 523 | 572 | 616 | 3157 | 2661 | 1510 | 1019 | 671 | 685 |
Swell 2 Height (m) Direction Period (s) | — | NW 11 | NW 10 | WNW 10 | NW 9 | W 8 | — | — | WNW 13 | — | — | — | — | WNW 18 | — | — | — | S 16 | S 15 | SW 14 |
| kJ | — | 169 | 80 | 64 | 28 | 65 | — | — | 189 | — | — | — | — | 63 | — | — | — | 5 | 4 | 8 |
Swell 3 Height (m) Direction Period (s) | — | — | S 12 | S 12 | WNW 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | 3 | 3 | 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | NW 3 | WNW 10 | — | — | — | — | — | W 10 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 5 | 516 | — | — | — | — | — | 469 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 2 | 0 | 9 | 2 | 2 | 70 | 2 | 2 | 121 | 2 | 20 | 84 | 359 | 70 | 70 | 10 | 10 | 10 | 10 | 2 |
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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