Surf Forecasts:
Porsmilin surf forecast from 19 Aug 2026:
- Best quality surf: Thursday 20 Aug, 11PM (local time) - 7.5ft (2.3m), 10s period, WNW swell with cross-offshore winds.
- Most powerful swell: Thursday 20 Aug, 2PM (local time) - 8ft (2.4m), 10s period, WNW swell with 1,021 kJ wave energy.
- Next surfable swell (1★+): Thursday 20 Aug, 11PM (local time) - 7.5ft (2.3m), 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 Thursday (Aug 20) at 11PM. The primary swell is predicted to be 2.3m and 10s 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 2.4m 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 1.0m 4s period and expected on Sunday (Aug 23) at 5PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 20th Aug) | 7.5ft (2.3m) 10s |
| Best Surf | 11PM (Thu 20th Aug) | 7.5ft (2.3m) 10s |
| Most Powerful | 2PM (Thu 20th Aug) | 8ft (2.4m) 10s |
Table - best surf conditions forecast for Porsmilin over the next 16 days.
The Lowdown
Alright, Rusty here, lookin’ at the charts for Porsmilin. It’s a bit of a mixed bag, gotta be honest. We’ve got some serious muscle showing up down the line, but the first week or so is gonna test your patience. Water temp's sittin' at 64°, which is pretty much what you’d expect for this time of year, nothin' wild there.
Right from the get-go, Wednesday the 19th of August, it’s not on. We got a weak 2ft swell from the west with a short, choppy 6-second period, and a strong cross-offshore wind. The combined energy is only 307, so it’s weak and messy. This carries on through the rest of the week. Thursday the 20th sees the swell bump up to 8ft from the WNW with a 9-second period, but it’s all cross-shore wind with a chop. The energy gets up to 1585, but the quality is just not there. Friday and Saturday are small and weak, or blown out. Honestly, from Wednesday through to Tuesday the 25th, it’s a write-off. There’s a solid gap of days where you’re better off doing something else.
We start to see a little life on Wednesday the 26th of August morning. Swell bumps back to 5ft from the southwest, period is still short at 8 seconds, but the wind goes cross-offshore at 12 mph, cleaning things up. The energy is moderate at 488. It’s still marginal, but it’s a step in the right direction.
Thursday the 27th gets ugly again. We’re lookin’ at a big 10ft swell from the west with an 11-second period, but it’s cross-onshore wind and a risk of thunderstorms. The energy is massive at 3672, but for Porsmilin, with that wind, it’s just a washing machine. Not the one.
Now, here’s where things get interesting. Sunday the 30th of August is the first real highlight. Morning session shows a 7ft swell from the west, 8-second period, but crucially, the wind is cross-offshore from the NW at 12 mph. It’s clean! Energy is strong at 1368. Sunday afternoon it actually gets bigger, 10ft from WNW with a much longer 13-second period, and the wind stays clean. Energy jumps to 3001. That’s proper groundswell energy, which means better shaped waves but longer waits between sets. For a sandbar setup like Porsmilin, that longer period can make ‘em a bit straight, but it’s the best we’ve seen.
But the standout? The absolute gem in this forecast is Monday the 31st of August. Morning brings a solid 15ft swell from the WNW with a long 12-second period, and a clean cross-offshore breeze at 16 mph from the northwest. Combined energy is a thumping 5153. This is massive, powerful surf. The call says it’s wind and tide favorable, but the swell is predicted to be too big for this break. For most of us, 15ft is expert territory only. This is a big, heavy, dangerous day for the experienced crew only. If you’re not solid at Porsmilin, give this one a wide berth. Tuesday the 1st of September is similar, with a 13ft swell, but the wind goes cross-onshore in the arvo, so morning is the only window.
After that, it all falls apart. Strong onshore winds and messy conditions from the 2nd of September onward close it out.
So, to sum it up: the first week is a bust. Your true standout is Monday the 31st of August, but it’s a big-wave day for experts only. If you’re looking for something a bit more manageable but still clean, aim for Sunday the 30th of August.
Rusty.
Short Range ForecastLight rain (total 9mm), mostly falling on Wed morning. Very mild (max 19°C on Wed morning, min 15°C on Fri night). Winds decreasing (fresh winds from the W on Wed night, light winds from the NW by Thu night). | Days 4-6 Weather SummaryHeavy rain (total 21mm), heaviest during Mon night. Warm (max 20°C on Sun afternoon, min 14°C on Mon morning). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | |||||||||||||||
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 6 | WNW 11 | WNW 8 | WNW 9 | WNW 10 | WNW 10 | WNW 10 | WNW 8 | NW 8 | NW 8 | NW 7 | NW 7 | NW 7 | W 9 | NW 6 | W 9 | W 9 | WNW 12 | WNW 11 | WNW 10 | WSW 9 |
Wave Graph | |||||||||||||||||||||
164 | 731 | 581 | 938 | 983 | 924 | 540 | 414 | 257 | 84 | 89 | 84 | 21 | 13 | 9 | 7 | 14 | 15 | 78 | 130 | 959 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-on | cross | cross | cross-off | cross | cross | cross-off | cross-off | off | off | cross-off | off | off | off | off | cross-off | cross-on | on | on |
High Tide | 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 | 3:57PM4.40m | 4:22AM4.44m | 4:39PM4.80m | 5:00AM4.82m | |||||||
Low Tide | 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 | 9:46AM1.94m | 10:19PM1.66m | 10:35AM1.56m | 11:01PM1.27m | ||||||||
7:16 | — | — | 7:18 | — | — | 7:20 | — | — | 7:20 | — | — | 7:22 | — | — | 7:24 | — | — | 7:24 | — | — | |
— | — | 9:25 | — | — | 9:23 | — | — | 9:22 | — | — | 9:21 | — | — | 9:19 | — | — | 9:16 | — | — | 9:15 | |
mm | 7 | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | 3 | 6 | 12 | — | — | 4 |
Temp °C | 19 | 19 | 18 | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 18 | 18 | 19 | 20 | 19 | 16 | 15 | 15 | 17 | 18 | 18 |
Feels °C | 16 | 16 | 14 | 14 | 15 | 15 | 14 | 13 | 13 | 13 | 14 | 13 | 13 | 13 | 13 | 13 | 9 | 10 | 16 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | SW 16 | SW 15 | WNW 9 | SW 14 | WNW 10 | WNW 10 | WNW 8 | SW 15 | NW 8 | W 9 | NW 7 | NW 7 | NW 6 | NW 6 | W 9 | W 9 | N 3 | WNW 11 | WNW 10 | WSW 9 |
125 | 10 | 8 | 938 | 8 | 924 | 540 | 414 | 9 | 84 | 41 | 84 | 21 | 10 | 9 | 6 | 14 | 2 | 78 | 130 | 959 | |
Swell 2 Height (m) Direction Period (s) | SW 16 | — | SW 15 | SW 14 | — | SW 13 | SW 13 | SW 13 | SW 16 | W 10 | SW 15 | W 9 | N 6 | W 9 | W 8 | NW 9 | NW 8 | W 8 | W 8 | W 8 | — |
9 | — | 8 | 8 | — | 7 | 7 | 7 | 9 | 46 | 8 | 25 | 16 | 13 | 6 | 3 | 3 | 13 | 12 | 5 | — | |
Swell 3 Height (m) Direction Period (s) | SW 15 | — | — | — | — | — | SW 16 | SW 16 | — | SW 15 | SW 12 | SW 14 | W 9 | SW 14 | SW 14 | SW 14 | SW 13 | WNW 12 | — | SW 13 | — |
9 | — | — | — | — | — | 10 | 10 | — | 9 | 6 | 8 | 14 | 8 | 8 | 7 | 7 | 15 | — | 7 | — | |
Wind waves Height (m) Direction Period (s) | W 6 | WNW 11 | WNW 8 | WNW 9 | WNW 10 | — | — | — | NW 8 | — | NW 7 | — | NE 3 | NNE 4 | NNE 4 | N 5 | N 4 | NNW 4 | — | S 4 | — |
164 | 731 | 581 | 639 | 983 | — | — | — | 257 | — | 89 | — | 7 | 42 | 16 | 25 | 15 | 5 | — | 13 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 250 | 724 | 84 | 359 | 359 | 0 | 20 | 2 | 26 | 14 | 44 | 0 | 201 | 201 | 201 | 244 | 461 | 365 | 2 | 63 | 37 |
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.











