Surf Forecasts:
Porsmilin surf forecast from 17 Aug 2026:
- Best quality surf: Friday 21 Aug, 2AM (local time) - 6ft (1.8m), 10s period, WNW swell with cross-offshore winds.
- Most powerful swell: Thursday 20 Aug, 2PM (local time) - 7ft (2.2m), 10s period, WNW swell with 922 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 2AM (local time) - 6ft (1.8m), 10s 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 (Aug 21) at 2AM. The primary swell is predicted to be 1.8m and 10s period with a secondary swell of 0.1m and 13s. 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 10s and forecast to arrive on Thursday (Aug 20) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 7s period and expected on Saturday (Aug 22) at 5PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Fri 21st Aug) | 6ft (1.8m) 10s |
| Best Surf | 2AM (Fri 21st Aug) | 6ft (1.8m) 10s |
| Most Powerful | 2PM (Thu 20th Aug) | 7ft (2.2m) 10s |
Table - best surf conditions forecast for Porsmilin over the next 16 days.
The Lowdown
Alright, Rusty here, checking the local stretch. We’ve got a bit of a waiting game on our hands.
The first real chance of anything decent doesn’t roll in until the morning of Thursday, August 20th, and even then it’s touch and go. The swell is building to about 7ft from the WNW, but the wind is a messy cross-shore at 15 mph. Wave energy is solid (914), but with that breeze, it’s going to be bumpy. The water temp is about normal for the season.
The one day I’d circle on the calendar is the morning of Friday, August 21st. It’s not huge, but the wind plays nice. We’ve got a clean 5ft swell from the WNW, with a light cross-offshore breeze from the NNW at just 6 mph. Wave energy is moderate (436), and it’s going to look clean and fun. Porsmilin is a sandbar that needs the right direction, and this WNW groundswell (10-second period) should have some push. It won’t be empty, but it’ll be worth it.
After that, it dries up fast. Saturday morning is glassy but tiny at 2ft, and then it’s a long stretch of knee-high dribble for days. The second week into September looks poor. There’s a bump around the 27th with some 5-plus foot waves, but the wind is all wrong—cross-shore and messy. By the 29th, we get a raw 10ft swell from the SW, but with a screaming cross-onshore wind and a short period, it’s a choppy mess. That’s kite-surfing stuff.
So, if you can, get out Friday morning, the 21st. That’s the best we’ve got. After that, it’s a long wait.
Rusty
Short Range ForecastSome drizzle, heaviest during Wed night. Warm (max 20°C on Mon afternoon, min 17°C on Mon morning). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Thu morning. Warm (max 21°C on Sat afternoon, min 15°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||
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 7 | WNW 9 | WNW 7 | WNW 6 | NW 6 | NW 7 | WNW 10 | WNW 11 | WNW 9 | WNW 9 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | NW 7 | NW 8 | W 10 | W 9 | W 9 | W 9 | W 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 10 | 94 | 57 | 32 | 27 | 85 | 349 | 649 | 702 | 866 | 832 | 609 | 313 | 217 | 107 | 75 | 48 | 28 | 25 | 15 | 14 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross-on | cross-on | cross | cross-on | cross | cross-on | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | off | off |
High Tide | 8:46AM5.58m | 9:03PM5.53m | 9:22AM5.22m | 9:40PM5.06m | 10:00AM4.81m | 10:21PM4.57m | 10:44AM4.39m | 11:13PM4.13m | 11:47AM4.03m | 00:35AM3.82m | 1:26PM3.88m | 2:22AM3.82m | 2:58PM4.05m | 3:35AM4.08m | |||||||
Low Tide | 3:06PM0.59m | 3:27AM0.74m | 3:44PM0.99m | 4:04AM1.19m | 4:24PM1.42m | 4:45AM1.64m | 5:13PM1.83m | 5:39AM2.03m | 6:20PM2.14m | 6:56AM2.27m | 7:54PM2.24m | 8:33AM2.23m | 9:21PM2.03m | ||||||||
 | |  |  | |  | |  |  |  | | | | | | | | | | | | |
 | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — | 7:18 | — | — | 7:20 | — | — | 7:20 | — | — | 7:22 | — | — |
 | — | — | 9:30 | — | — | 9:28 | — | — | 9:25 | — | — | 9:23 | — | — | 9:22 | — | — | 9:21 | — | — | 9:19 |
mm | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 20 | 19 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 17 | 18 | 18 | 17 | 21 | 20 | 19 | 22 | 19 |
Feels °C | 18 | 19 | 19 | 19 | 18 | 19 | 16 | 16 | 14 | 14 | 15 | 16 | 16 | 15 | 15 | 14 | 16 | 16 | 14 | 17 | 13 |
Swell 1 Height (m) Direction Period (s) | NW 4 | S 17 | WNW 7 | WNW 6 | NW 6 | NW 7 | WNW 10 | SW 16 | SW 15 | WNW 9 | SW 14 | WNW 10 | WNW 9 | WNW 9 | NW 7 | NW 8 | W 10 | NNW 6 | NNW 6 | W 9 | NW 6 |
| kJ | 5 | 6 | 57 | 32 | 27 | 85 | 349 | 10 | 8 | 866 | 8 | 609 | 313 | 217 | 107 | 75 | 48 | 48 | 33 | 15 | 6 |
Swell 2 Height (m) Direction Period (s) | W 7 | — | SW 16 | WNW 8 | W 8 | W 7 | SW 16 | — | SW 15 | SW 14 | — | SW 13 | W 9 | SW 13 | W 8 | W 11 | SW 15 | W 9 | W 9 | WNW 6 | W 9 |
| kJ | 8 | — | 10 | 21 | 11 | 17 | 9 | — | 9 | 8 | — | 7 | 14 | 7 | 37 | 36 | 8 | 28 | 25 | 4 | 14 |
Swell 3 Height (m) Direction Period (s) | WNW 10 | — | — | SW 17 | SW 17 | SW 17 | SW 15 | — | — | — | — | — | SW 13 | SW 16 | W 12 | W 8 | SW 12 | NW 7 | NW 7 | SW 14 | SW 14 |
| kJ | 10 | — | — | 11 | 11 | 11 | 9 | — | — | — | — | — | 7 | 10 | 11 | 11 | 6 | 14 | 7 | 8 | 8 |
Wind waves Height (m) Direction Period (s) | — | WNW 9 | — | — | W 5 | — | WNW 7 | WNW 11 | WNW 9 | — | WNW 10 | — | — | — | — | — | NNW 7 | ENE 3 | — | N 4 | N 3 |
| kJ | — | 94 | — | — | 20 | — | 108 | 649 | 702 | — | 832 | — | — | — | — | — | 75 | 1 | — | 27 | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 294 | 461 | 40 | 68 | 497 | 39 | 10 | 559 | 10 | 329 | 359 | 0 | 0 | 0 | 0 | 1 | 4 | 10 | 18 | 201 | 201 |
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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