Surf Forecasts:
Porsmilin surf forecast from 31 Aug 2026:
- Best quality surf: Saturday 5 Sep, 5AM (local time) - 7ft (2.1m), 12s period, WNW swell with cross-offshore winds.
- Most powerful swell: Saturday 5 Sep, 11AM (local time) - 7ft (2.2m), 13s period, WNW swell with 1,548 kJ wave energy.
- Next surfable swell (1★+): Monday 31 Aug, 8PM (local time) - 7.5ft (2.3m), 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 (Aug 31) at 8PM. The primary swell is predicted to be 2.3m 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 2.2m 13s and forecast to arrive on Saturday (Sep 05) at 11AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Sunday (Sep 06) at 5AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Mon 31st Aug) | 7.5ft (2.3m) 10s |
| Best Surf | 5AM (Sat 5th Sep) | 7ft (2.1m) 12s |
| Most Powerful | 11AM (Sat 5th Sep) | 7ft (2.2m) 13s |
Table - best surf conditions forecast for Porsmilin over the next 16 days.
The Lowdown
Right, grab a coffee and settle in, I've been over the charts. Let's talk about what Porsmilin’s got cooking for us.
It’s a mixed bag over this 16-day window, to be honest. For the first few days it’s a bit of a write-off, but there’s a solid pulse of groundswell waiting for us around the 5th of September that has my heart rate up. That’s the standout. The rest of it is mostly small and messy, with a few clean windows for the loggers.
Things kick off proper on Monday the 31st, but I wouldn’t rush down there. We’ve got a lumpy, cross-shore 10ft swell on the cards for the morning with moderate energy (1545), but it’s from the W, and that WNW wind is going to put a chop on it. It’s an intermediate sandbar, so it can handle a bit, but the conditions are just marginal at best. Monday afternoon drops to 8ft and stays cross-shore. Not great. Tuesday the 1st and Wednesday the 2nd look poor, with onshore winds and small, weak swell. Honestly, you can sleep in.
Thursday the 3rd is still a write-off, but Friday the 4th shows some improvement. The morning is cross-shore with a 5ft WNW swell (567), but by Friday afternoon we get a swing to a cross-offshore NW wind and a 6ft swell (645). Still, I’d wait.
Now, circle Saturday the 5th of September on your calendar. That’s the one. Saturday morning is pure gold. We’ve got a clean 7ft W groundswell pushing in with serious energy (1555), and – here’s the kicker – a light NNE offshore breeze. That’s going to comb out the sandbar beautifully. For the experienced surfers, this is the best on offer. The period is a solid 13 seconds, so expect long lines and proper shape. It’s a bit heavy for beginners at that size though. The afternoon stays clean with 6ft and a moderate offshore from the N, still a great session. This is the window. Get after it.
Sunday the 6th fades fast with a morning cross-shore and a smaller 4ft swell. Monday the 7th is tiny but glassy clean with a 2ft swell that’s got a crazy long 15-second period. That’s a pure groundswell, which will wrap in nicely but might be a bit straight for the sandbar. Tuesday the 8th perks up again with a 6ft swell and a glassy NE offshore wind in the morning. That’s a good, clean option for intermediates, with light wind, making for some fun waves.
After that, it goes pear-shaped. Wednesday the 9th brings rain and a fresh cross-onshore blow, and from Thursday the 10th all the way through Tuesday the 15th, the swell drops right off into the doldrums. Tiny waves, mostly poor conditions, not worth getting wet for most of us. The last gasp on Tuesday the 15th afternoon shows a 3ft swell with glassy conditions, but that’s about as ordinary as it gets.
So to sum it up: bank on Saturday the 5th for the heavy stuff, maybe Tuesday the 8th morning for a cleaner, smaller session. The rest, save your energy.
Rusty.
Short Range ForecastMostly dry. Very mild (max 19°C on Wed afternoon, min 16°C on Mon night). Winds decreasing (fresh winds from the WNW on Mon morning, calm by Mon night). | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Thu night, min 15°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | |||||||||||||||
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 10 | WNW 10 | WNW 9 | W 9 | W 8 | W 8 | W 7 | W 8 | W 8 | W 8 | W 8 | WNW 11 | WNW 10 | WNW 12 | WNW 13 | WNW 12 | WNW 11 | WNW 10 | NW 9 | NW 9 |
Wave Graph | |||||||||||||||||||||
1545 | 1138 | 712 | 283 | 162 | 108 | 99 | 246 | 338 | 203 | 253 | 283 | 551 | 637 | 1163 | 1548 | 1027 | 499 | 235 | 86 | 38 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | glassy | on | cross-on | cross-on | on | cross-on | cross-on | on | cross-on | cross-on | cross | cross-off | cross-off | off | off | cross-off | cross | cross-off | cross-off |
High Tide | 7:53PM5.99m | 8:13AM5.78m | 8:30PM5.79m | 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 | ||||||||
Low Tide | 1:56PM0.31m | 2:16AM0.29m | 2:31PM0.45m | 2:52AM0.52m | 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 | ||||||||
7:33 | — | — | 7:35 | — | — | 7:35 | — | — | 7:37 | — | — | 7:39 | — | — | 7:39 | — | — | 7:41 | — | — | |
— | — | 9:02 | — | — | 9:00 | — | 8:59 | — | — | 8:57 | — | — | 8:54 | — | — | 8:52 | — | — | 8:51 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 18 | 17 | 17 | 17 | 18 | 18 | 19 | 19 | 19 | 19 | 20 | 20 | 18 | 17 | 16 | 18 | 16 | 17 | 21 | 21 |
Feels °C | 15 | 15 | 15 | 16 | 15 | 17 | 15 | 17 | 17 | 18 | 17 | 19 | 19 | 18 | 15 | 15 | 14 | 11 | 14 | 19 | 18 |
Swell 1 Height (m) Direction Period (s) | W 10 | W 10 | WNW 10 | WNW 9 | W 9 | W 8 | SW 16 | SW 15 | W 8 | W 8 | W 8 | W 8 | WNW 11 | WNW 10 | WNW 12 | WNW 13 | WNW 12 | WNW 11 | WNW 10 | NW 9 | NW 9 |
1545 | 1138 | 712 | 283 | 162 | 108 | 10 | 9 | 338 | 203 | 253 | 283 | 551 | 637 | 1163 | 1548 | 1027 | 499 | 235 | 86 | 38 | |
Swell 2 Height (m) Direction Period (s) | — | — | — | SW 18 | N 5 | SW 16 | S 10 | — | SW 15 | WNW 8 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | W 9 | W 9 |
— | — | — | 12 | 1 | 10 | 2 | — | 8 | 7 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 6 | 27 | 25 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | SW 16 | — | — | — | — | SW 15 | — | — | SW 14 | — | — | — | — | — | — | S 12 | W 17 |
— | — | — | — | 11 | — | — | — | — | 8 | — | — | 8 | — | — | — | — | — | — | 3 | 22 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | W 8 | W 7 | — | — | W 8 | — | — | — | — | — | — | ENE 3 | SE 5 | SSE 5 | SE 5 |
— | — | — | — | — | — | 99 | 246 | — | — | 185 | — | — | — | — | — | — | 1 | 7 | 19 | 6 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 2 | 0 | 21 | 2 | 2 | 84 | 63 | 36 | 63 | 10 | 36 | 2 | 2 | 0 | 0 | 0 | 9 | 1 | 0 | 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.











