
Surf Forecasts:
Porsmilin surf forecast from 11 Sep 2026:
- Best quality surf: Thursday 17 Sep, 5AM (local time) - 6ft (1.8m), 10s period, WNW swell with cross-offshore winds.
- Most powerful swell: Friday 18 Sep, 8AM (local time) - 6.5ft (2.0m), 13s period, WNW swell with 1,426 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 8AM (local time) - 5.5ft (1.7m), 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 Friday (Sep 11) at 8AM. The primary swell is predicted to be 1.7m and 10s period. 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 2.0m 13s and forecast to arrive on Friday (Sep 18) at 8AM. 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+) | 8AM (Fri 11th Sep) | 5.5ft (1.7m) 10s |
| Best Surf | 5AM (Thu 17th Sep) | 6ft (1.8m) 10s |
| Most Powerful | 8AM (Fri 18th Sep) | 6.5ft (2.0m) 13s |
Table - best surf conditions forecast for Porsmilin over the next 16 days.
The Lowdown
Alright, it's Rusty here, looking at the charts for Porsmilin. We've got a bit of a mixed bag over the next couple weeks, but there's some serious firepower lurking in the back half. No surf worth paddling for the first few days if you ask me, so don't bother rushing down.
We kick off with a sniff of action on Friday the 11th of September, but it's nothing to write home about. Porsmilin's a sandbar setup, fairly exposed to the swell, and the wind's being a pain. On Friday morning we've got a weak 5 ft from the west (combined energy of all swells directed here is 408) hitting with a cross breeze. Water temp is around 63°, which is about average for this time of year. It's all pretty ordinary. Friday afternoon cleans up slightly with a cross-offshore wind and 4 ft waves, but the quality is still poor.
Saturday the 12th and Sunday the 13th are write-offs with poor surf conditions and messy cross-onshore winds. The swell gets up to 6 ft on Sunday, but it's chopped up. The whole of the next week up until the 18th looks ragged, with gusty winds and inconsistent, poor-quality lines. Not worth paddling.
Now, here's where it gets interesting. A proper groundswell shows up for the weekend. Saturday the 19th of September wakes up with a clean 7 ft swell from the west-northwest, 11-second period, with a light cross-offshore breeze from the east-northeast. That is excellent surf for experienced surfers. The energy is pumping (1787). Keep in mind, the tide and crowds can be a factor here as it does get busy sometimes.
But the real standout, the one you wait for, is Sunday the 20th. We get a massive 10 ft west-northwest swell with an incredibly long period of 15 seconds. That's pure groundswell energy (3319). And it's glassy in the morning with a light cross-offshore wind. This is expert territory only, and at that size, the long period could make it a bit straight at this sandbar, but when it lines up, that's the session.
After that, the surf stays solid into the next week. Monday the 21st keeps clean 8 ft to 7 ft waves with offshore winds, and the energy is still strong (1803). Tuesday the 22nd drops a notch but stays manageable. By Thursday the 24th, we get another very good day with a 7 ft swell (combined energy of all swells directed here 769) and a gentle offshore wind. Then Friday the 25th looks excellent too, with a 7 ft swell at 11 seconds (1128 energy) and clean offshore breeze.
The final call is Saturday the 26th. The morning offers a massive 10 ft swell at 12 seconds (2485 energy) and clean conditions – expert only. The afternoon, though, the swell is predicted to be too big at 12 ft with 14 seconds. That's just crazy energy (4879) and not suitable for this break.
So to sum it up: the first week is a total dud. But that Saturday the 19th and Sunday the 20th are the real standouts. The 20th is the winner – big, clean, powerful. Get it while it lasts.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Fri afternoon, min 16°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Tue night. Warm (max 23°C on Mon afternoon, min 15°C on Wed night). Winds increasing (light winds from the SE on Mon night, fresh winds from the NW by Tue afternoon). | ||||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||||
AM | 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) | W 10 | W 9 | W 8 | W 8 | WNW 10 | WNW 12 | WNW 11 | WNW 11 | W 10 | W 9 | W 9 | W 9 | W 8 | WNW 7 | WNW 8 | WNW 10 | WNW 10 | WNW 11 | WNW 10 | WNW 10 | WNW 16 |
Wave Graph | |||||||||||||||||||||
408 | 258 | 161 | 108 | 300 | 748 | 737 | 597 | 231 | 133 | 127 | 76 | 161 | 384 | 650 | 943 | 1001 | 778 | 394 | 312 | 310 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | glassy | on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-on | on | cross-on | cross | cross-off | cross | cross-off | cross-off | cross-off | cross | cross | cross |
High Tide | 6:08PM6.24m | 6:29AM6.06m | 6:45PM6.27m | 7:04AM6.06m | 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 | ||||||||
Low Tide | 12:09PM0.14m | 00:32AM-0.09m | 12:47PM0.03m | 1:08AM-0.06m | 1:22PM0.07m | 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 | |||||||
7:48 | — | — | 7:50 | — | — | 7:50 | — | — | 7:52 | — | — | 7:54 | — | — | 7:56 | — | — | 7:56 | — | — | |
— | 8:40 | — | — | 8:37 | — | — | 8:36 | — | — | 8:34 | — | — | 8:31 | — | — | 8:30 | — | — | 8:28 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — |
Temp °C | 18 | 19 | 18 | 16 | 18 | 18 | 19 | 19 | 19 | 20 | 23 | 22 | 18 | 17 | 17 | 16 | 16 | 15 | 16 | 16 | 17 |
Feels °C | 17 | 18 | 16 | 17 | 16 | 17 | 18 | 17 | 19 | 21 | 23 | 23 | 17 | 12 | 12 | 11 | 12 | 11 | 14 | 14 | 16 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 9 | W 8 | W 8 | WNW 10 | WNW 12 | WNW 11 | WNW 11 | W 10 | W 9 | W 9 | W 9 | WNW 11 | WNW 11 | WNW 8 | WNW 10 | WNW 10 | WNW 11 | WNW 10 | WNW 10 | WNW 9 |
408 | 258 | 161 | 108 | 300 | 748 | 737 | 597 | 231 | 133 | 127 | 76 | 70 | 90 | 650 | 943 | 1001 | 778 | 394 | 312 | 232 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | WNW 10 | WNW 13 | — | S 13 | — | WNW 11 | NW 10 | NW 10 | WNW 9 | — | — | — | — | — | — | — | — | WNW 16 |
— | — | — | 86 | 120 | — | 3 | — | 149 | 82 | 47 | 52 | — | — | — | — | — | — | — | — | 310 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | WNW 16 | — | — | — | — | — | S 12 | S 12 | NW 13 | — | — | — | — | — | — | — | — | — |
— | — | — | 25 | — | — | — | — | — | 3 | 3 | 7 | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | S 3 | SSE 3 | W 8 | WNW 7 | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | — | 1 | 2 | 161 | 384 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 0 | 0 | 4 | 2 | 2 | 2 | 2 | 0 | 9 | 21 | 25 | 192 | 534 | 121 | 2 | 540 | 2 | 2 | 39 | 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.










