Surf Forecasts:
Porsmilin surf forecast from 19 Aug 2026:
- Best quality surf: Friday 21 Aug, 5AM (local time) - 6.5ft (2.0m), 10s period, WNW swell with cross-offshore winds.
- Most powerful swell: Thursday 20 Aug, 5PM (local time) - 7.5ft (2.3m), 10s period, WNW swell with 963 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 5AM (local time) - 6.5ft (2.0m), 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 5AM. The primary swell is predicted to be 2.0m 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 2.3m 10s and forecast to arrive on Thursday (Aug 20) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Monday (Aug 24) at 11PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Fri 21st Aug) | 6.5ft (2.0m) 10s |
| Best Surf | 5AM (Fri 21st Aug) | 6.5ft (2.0m) 10s |
| Most Powerful | 5PM (Thu 20th Aug) | 7.5ft (2.3m) 10s |
Table - best surf conditions forecast for Porsmilin over the next 16 days.
The Lowdown
Alright, let’s switch it up for the imperial crew.
Right now, Porsmilin is quiet. Nothing doing at the start, and we’re looking at a flat spell that runs for a few days before anything wakes up.
The first real chance is Saturday morning, the 22nd. You’re looking at 3 ft swell from the northwest, with the wind blowing offshore out of the north – that means clean faces. The energy is low, around 114 – just a weak pulse. Saturday afternoon stays small at 2 ft, still clean with that offshore wind. It’s a longboard or a small-wave setup, not a main event.
From Sunday the 23rd through Tuesday the 25th, it’s mostly flat and windy. Not worth suiting up.
But Wednesday the 26th? That’s where it gets good. The morning serves up 5 ft from the west-northwest, and the wind goes glassy – just 5 km/h from the south-southwest. The water is 65°F, right around average for this time of year. The energy picks up to 498, a decent push. Wednesday afternoon is even cleaner: 5 ft swell, flat calm, glassy. This is the standout. Porsmilin is a sandbar spot that’s fairly consistent, and when the wind drops to glass, those waves will be smooth and peeling. Crowds could be around sometimes.
Thursday the 27th and Friday the 28th get messy – cross-shore and onshore winds chop it up. The swell sticks around but the quality goes out the window.
Then, August 31st – Monday morning – a serious pulse: 12 ft from the west, period around 11 seconds, and the energy is a beastly 3036. That’s expert territory only. Over 8 ft is big, and this is well past that. The wind is cross-shore and fresh, so it’ll be lumpy. Not a session for most of us.
After that, early September is onshore and choppy. Not much to write home about.
So the one to aim for? Wednesday 26th August – glassy, clean, waist-to-chest high. That’s your window.
Rusty.
Short Range ForecastLight rain (total 4mm), 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 SW on Wed morning, light winds from the WNW by Thu night). | Days 4-6 Weather SummaryModerate rain (total 18mm), heaviest on Mon afternoon. Warm (max 21°C on Sun afternoon, min 15°C on Sat morning). Winds increasing (light winds from the N on Sat morning, fresh winds from the NE by Mon morning). | ||||||||||||||||||||
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 9 | WNW 9 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | NW 8 | NW 7 | NW 7 | NW 7 | NW 7 | W 9 | W 8 | W 9 | W 9 | WNW 12 | WNW 11 | WNW 10 | WSW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 194 | 743 | 595 | 938 | 963 | 832 | 528 | 364 | 253 | 59 | 53 | 38 | 15 | 6 | 8 | 7 | 7 | 15 | 78 | 90 | 459 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross | cross | cross | cross | cross-off | cross-off | off | off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | 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 | 3 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 | 12 | 5 | 7 | 3 | 9 |
Temp °C | 19 | 19 | 18 | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 18 | 17 | 19 | 21 | 20 | 18 | 18 | 17 | 16 | 16 | 17 |
Feels °C | 15 | 16 | 14 | 14 | 14 | 15 | 15 | 13 | 11 | 13 | 14 | 12 | 12 | 14 | 13 | 11 | 16 | 15 | 16 | 13 | 15 |
Swell 1 Height (m) Direction Period (s) | NW 10 | SW 16 | SW 15 | WNW 9 | WNW 10 | WNW 10 | WNW 9 | WNW 9 | NW 8 | NW 7 | NW 7 | NW 7 | NW 7 | W 9 | NW 6 | NW 6 | W 9 | W 8 | NNW 5 | WNW 10 | W 10 |
| kJ | 100 | 10 | 8 | 938 | 963 | 832 | 528 | 364 | 253 | 59 | 53 | 38 | 15 | 6 | 2 | 5 | 6 | 6 | 18 | 90 | 183 |
Swell 2 Height (m) Direction Period (s) | SW 16 | — | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 15 | W 10 | W 9 | W 9 | NNW 6 | WNW 6 | W 8 | W 9 | NW 8 | WNW 12 | WNW 11 | N 4 | — |
| kJ | 9 | — | 8 | 8 | 8 | 7 | 7 | 7 | 9 | 46 | 42 | 25 | 6 | 4 | 5 | 6 | 3 | 15 | 78 | 3 | — |
Swell 3 Height (m) Direction Period (s) | SW 15 | — | — | — | — | — | SW 16 | SW 16 | — | SW 15 | SW 15 | NNW 6 | W 9 | SE 5 | SW 14 | SW 14 | SW 13 | SW 13 | W 8 | W 8 | — |
| kJ | 9 | — | — | — | — | — | 10 | 10 | — | 9 | 8 | 8 | 14 | 1 | 8 | 7 | 7 | 7 | 5 | 5 | — |
Wind waves Height (m) Direction Period (s) | W 6 | WNW 11 | WNW 9 | WNW 9 | WNW 10 | — | — | NNW 2 | — | — | N 3 | NE 3 | ENE 3 | NNE 4 | NNE 4 | NNE 4 | N 5 | NNW 6 | — | SSW 4 | WSW 7 |
| kJ | 194 | 743 | 595 | 626 | 640 | — | — | 1 | — | — | 5 | 3 | 7 | 32 | 11 | 34 | 97 | 102 | — | 10 | 459 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 450 | 774 | 84 | 359 | 359 | 2 | 2 | 2 | 33 | 0 | 0 | 4 | 201 | 201 | 201 | 472 | 19 | 10 | 2 | 200 | 36 |
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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