Surf Forecasts:
Porsmilin surf forecast from 2 Sep 2026:
- Best quality surf: Friday 4 Sep, 11PM (local time) - 6ft (1.8m), 11s period, WNW swell with cross-offshore winds.
- Most powerful swell: Saturday 5 Sep, 11AM (local time) - 6ft (1.9m), 12s period, WNW swell with 1,062 kJ wave energy.
- Next surfable swell (1★+): Friday 4 Sep, 5PM (local time) - 6ft (1.8m), 9s period with WNW 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 04) at 5PM. The primary swell is predicted to be 1.8m and 9s period with a secondary swell of 0.1m and 14s. 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 1.9m 12s and forecast to arrive on Saturday (Sep 05) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5PM (Fri 4th Sep) | 6ft (1.8m) 9s |
| Best Surf | 11PM (Fri 4th Sep) | 6ft (1.8m) 11s |
| Most Powerful | 11AM (Sat 5th Sep) | 6ft (1.9m) 12s |
Table - best surf conditions forecast for Porsmilin over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s take a look at what’s going on out there.
Right now, the surf is a bit of a write-off. Through Wednesday and Thursday, we’ve got lumpy, onshore wind and weak, short-period swell. Don’t bother paddling out. The water temp is sitting at 63°, which is about normal for this time of year, nothing to write home about.
Friday afternoon is where things start to turn. The wind swings around to a light cross-offshore from the NNW, and the swell picks up to 6 ft from the WNW with a period of 9 seconds. The combined energy jumps to 501 (moderate), and the surf is looking clean. That’s a solid session to get the weekend started.
But the real standout is Saturday, the 5th of September. This is the pick of the forecast. Clear skies, light cross-offshore winds from the ENE, and a solid 6 ft swell from the WNW with a long 12-second period. The energy is strong at 1069. The waves will have real push and shape. Porsmilin is a sandbar, and with this long-period groundswell, the waves will be well-defined and clean. This is a good one for intermediate surfers.
Sunday the 6th drops right back off with weak, onshore wind and barely any swell. A rest day.
Monday the 7th sees a return of some size – 5 to 6 ft from the W with a 12-second period, and clean conditions on Monday morning. The energy is moderate to strong (722-865). Monday morning looks good, but the tide or something has the forecast a bit questionable. Still worth a look.
The middle of the week (Tuesday through Thursday) is a mixed bag. There’s size, but the wind is messy, mostly cross or cross-shore, and the quality is suffering. It’s not completely flat, but it’s not great.
Now, looking further out, the 11th of September (Friday) shows some promise. Offshore wind from the N, 7 ft swell from the WNW with an 8-second period, and clean conditions. The energy is 614. That’s a good, powerful, hollow wave for the more experienced crew. Over 7 ft, it’s getting into expert territory.
The following Saturday, the 12th, sees a big jump in energy with 8 ft from the WNW and an 11-second period, but the onshore and cross-onshore wind will mess it up. It’s likely to be a choppy, lumpy mess.
The 15th of September (Tuesday) is one to watch from a distance. The swell is 8 ft from the WNW with a very long 14-second period, and the energy is massive at 2259. The wind is light cross-shore, which is okay, but at that size and with that period, Porsmilin (a sandbar) might get a bit straight and tricky. That’s a big, powerful swell for experts only.
The rest of the run into the 17th is a mix of clean cross-offshore winds and dropping swell, but nothing that jumps out as a must-surf compared to that Saturday the 5th.
So, bottom line: Saturday the 5th of September is your best bet. Clean, solid, long-period swell with light winds. Monday the 7th morning is a good backup. The big swell on the 15th is for the pros only.
Keep your eyes on the horizon.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Thu afternoon, min 15°C on Fri night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Sun afternoon, min 14°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | |||||||||||||||
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 8 | W 7 | W 8 | W 8 | W 8 | W 8 | W 8 | WNW 9 | WNW 11 | WNW 12 | WNW 12 | NW 11 | WNW 10 | WNW 9 | W 15 | W 12 | W 12 | W 10 | WNW 9 | WNW 9 | WNW 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 99 | 230 | 223 | 191 | 203 | 239 | 317 | 493 | 868 | 1062 | 802 | 341 | 122 | 55 | 267 | 714 | 865 | 563 | 592 | 464 | 465 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | on | on | on | cross-on | cross-on | cross-on | cross-off | off | cross-off | cross-off | cross | cross-on | on | cross-off | cross-off | cross | cross-on | cross | cross | cross |
High Tide | 8:50AM5.57m | 9:10PM5.46m | 9:32AM5.24m | 9:57PM5.03m | 10:25AM4.84m | 11:00PM4.58m | 11:39AM4.48m | 00:33AM4.27m | 1:22PM4.40m | 2:18AM4.37m | 2:53PM4.71m | 3:34AM4.76m | 3:57PM5.19m | 4:29AM5.22m | |||||||
Low Tide | 3:10PM0.70m | 3:33AM0.86m | 3:57PM1.04m | 4:23AM1.27m | 4:56PM1.42m | 5:30AM1.65m | 6:18PM1.69m | 7:02AM1.85m | 7:58PM1.66m | 8:37AM1.68m | 9:23PM1.29m | 9:50AM1.26m | 10:25PM0.80m | ||||||||
 |  |  | | |  | | | |  | | | | | | | | |  | |  | |
 | 7:35 | — | — | 7:37 | — | — | 7:39 | — | — | 7:39 | — | — | 7:41 | — | — | 7:43 | — | — | 7:43 | — | — |
 | — | 8:59 | — | — | 8:57 | — | — | 8:54 | — | — | 8:52 | — | — | 8:51 | — | — | 8:49 | — | — | 8:46 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 2 |
Temp °C | 18 | 18 | 18 | 19 | 20 | 20 | 19 | 20 | 17 | 15 | 19 | 21 | 23 | 26 | 19 | 18 | 17 | 17 | 16 | 17 | 16 |
Feels °C | 14 | 14 | 16 | 18 | 19 | 20 | 18 | 19 | 15 | 14 | 16 | 18 | 19 | 22 | 19 | 16 | 14 | 14 | 15 | 14 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 15 | W 8 | W 8 | W 8 | W 8 | W 8 | WNW 9 | WNW 11 | WNW 12 | WNW 12 | NW 11 | WNW 10 | WNW 9 | W 15 | W 12 | W 12 | W 10 | WNW 9 | WNW 9 | WNW 9 |
| kJ | 10 | 9 | 223 | 191 | 203 | 239 | 317 | 493 | 868 | 1062 | 802 | 341 | 122 | 55 | 267 | 714 | 865 | 563 | 592 | 464 | 465 |
Swell 2 Height (m) Direction Period (s) | S 10 | W 10 | NW 9 | WNW 8 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | W 9 | W 9 | W 8 | W 8 | — | — | — | — | NW 12 | — |
| kJ | 2 | 2 | 3 | 7 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 61 | 40 | 21 | 50 | — | — | — | — | 65 | — |
Swell 3 Height (m) Direction Period (s) | — | — | SW 15 | SW 15 | — | — | — | — | — | — | — | SW 13 | SW 12 | SSE 5 | NW 9 | — | — | — | — | — | — |
| kJ | — | — | 8 | 8 | — | — | — | — | — | — | — | 7 | 6 | 4 | 12 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 8 | W 7 | — | — | — | — | — | — | — | — | — | — | SE 4 | — | W 3 | WNW 4 | — | — | — | — | — |
| kJ | 99 | 230 | — | — | — | — | — | — | — | — | — | — | 5 | — | 2 | 8 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 36 | 63 | 36 | 36 | 63 | 36 | 216 | 0 | 0 | 0 | 0 | 1 | 9 | 36 | 0 | 2 | 531 | 10 | 2 | 359 | 314 |
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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