
Surf Forecasts:
Porsmilin surf forecast from 13 Sep 2026:
- Best quality surf: Friday 18 Sep, 8AM (local time) - 8ft (2.5m), 16s period, WNW swell with cross-offshore winds.
- Most powerful swell: Friday 18 Sep, 8AM (local time) - 8ft (2.5m), 16s period, WNW swell with 3,253 kJ wave energy.
- Next surfable swell (1★+): Monday 14 Sep, 2AM (local time) - 3.5ft (1.1m), 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 (Sep 14) at 2AM. The primary swell is predicted to be 1.1m and 10s period with a secondary swell of 0.9m and 11s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Porsmilin in the next 16 days are 2.5m 16s and forecast to arrive on Friday (Sep 18) at 8AM. 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+) | 2AM (Mon 14th Sep) | 3.5ft (1.1m) 10s |
| Best Surf | 8AM (Fri 18th Sep) | 8ft (2.5m) 16s |
| Most Powerful | 8AM (Fri 18th Sep) | 8ft (2.5m) 16s |
Table - best surf conditions forecast for Porsmilin over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s break down what’s coming for Porsmilin over the next couple of weeks. I’m not gonna sugarcoat it – the start is a bit of a dud. We’ve got a flat, messy patch to sit through before the good stuff kicks in.
The first few days are a write-off. From Sunday the 13th through Tuesday the 15th, the surf is poor. The swell is weak, the period is short, and we’ve got cross-onshore winds making a mess of things. The combined energy is low, between 190 and 630 (weak to moderate). Not worth your time. The water temp is about 63°F, which is pretty normal for this time of year.
Things start to look up on Wednesday the 16th. The swell pushes up to about 8ft from the WNW, with a period of 10 seconds. The energy jumps to 922 (moderate). The wind is cross-offshore and clean, which is a big plus. It’s still a bit raw and the forecast is marginal, but it’s the first sign of life. By the afternoon, the swell holds at 7ft and the energy hits 1069 (strong), but again, conditions are only just okay. This is for intermediates and above – 7ft is a bit much for beginners.
Now, the real standout. Circle Friday the 18th. This is the one that’s got me buzzing. We’ve got a proper groundswell coming in – 8ft from the WNW with a very long period of 15 seconds. The combined energy is a massive 3505 (very strong). That’s a powerful, serious swell. The wind is gentle and cross-shore in the morning, which should keep things reasonably clean. This is a big, powerful wave at a sandbar, so it’s one for the experienced crew. The long period means long lulls between sets, making the paddle out easier, but the waves will have real punch. This is your best chance for a proper session, but be aware – it’s a big swell, definitely not for the faint-hearted.
We get another solid pulse on Saturday the 19th. The swell is still a healthy 8ft from the WNW with a 12-second period. The wind swings offshore in the afternoon (NW, 15 km/h or about 9 mph) and conditions are clean. The energy is 1491 (strong). This is a very good backup, and with cleaner winds than Friday, it might actually be the pick of the two for some. Again, expert territory due to the size.
The following week is a mixed bag. Tuesday the 22nd sees a 6ft, 13-second groundswell with light offshore winds in the morning – very clean, and a nice size for intermediate surfers. The energy is 1234 (strong). That’s a great morning session.
Then, the real highlight of the second week lands on Thursday the 24th. The morning is glassy – yes, glassy – with a 5ft swell from the WNW at 12 seconds. The energy is 710 (moderate). Glassy conditions at a sandbar? That’s as good as it gets for clean, fun waves. This is a standout for anyone looking for a smooth, uncrowded session. The afternoon stays clean with a cross-offshore wind.
Finally, Friday the 25th offers the biggest swell of the run, a 7ft groundswell from the NW with a very long 14-second period, and beautiful offshore winds (NNE, 10 km/h or about 6 mph). The energy is 1833 (very strong). The report calls this excellent for experienced surfers. The caveat here is that long-period NW swell at a sandbar can be a bit straight and dumpy, but with those offshore winds, it’ll be a proper barrel if it lines up. A true expert’s wave.
The last few days from the 26th onwards fade in size and quality. It’s not a total loss, but the magic is definitely in that first window from the 18th to the 25th. Keep an eye on the long-range forecasts – it’s promising but never set in stone this far out.
Stay safe, and I’ll see you out there.
Rusty
Short Range ForecastMostly dry. Warm (max 20°C on Mon afternoon, min 16°C on Tue afternoon). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Thu afternoon. Very mild (max 17°C on Thu morning, min 15°C on Wed morning). Mainly fresh winds. | ||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||
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) | WNW 11 | WNW 11 | W 10 | W 9 | W 9 | W 8 | WNW 11 | WNW 10 | WNW 8 | WNW 10 | WNW 10 | WNW 11 | WNW 10 | WNW 9 | WNW 9 | WNW 15 | WNW 14 | WNW 13 | WNW 13 | WNW 12 | WNW 12 |
Wave Graph | |||||||||||||||||||||
631 | 608 | 231 | 130 | 127 | 90 | 107 | 527 | 488 | 922 | 1040 | 778 | 502 | 506 | 573 | 3009 | 2413 | 1619 | 1597 | 1491 | 1427 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | glassy | cross-on | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross-off | cross-off | cross | cross-on | on | cross-on | cross-off | cross-off |
High Tide | 7:19PM6.13m | 7:37AM5.92m | 7:53PM5.86m | 8:09AM5.65m | 8:26PM5.48m | 8:41AM5.30m | 8:59PM5.03m | 9:15AM4.88m | 9:35PM4.56m | 9:54AM4.44m | 10:20PM4.10m | 10:49AM4.02m | 11:36PM3.73m | ||||||||
Low Tide | 1:22PM0.07m | 1:41AM0.12m | 1:56PM0.27m | 2:14AM0.42m | 2:30PM0.58m | 2:46AM0.81m | 3:04PM0.97m | 3:20AM1.24m | 3:41PM1.40m | 3:58AM1.68m | 4:27PM1.84m | 4:49AM2.09m | 5:33PM2.19m | ||||||||
7:50 | — | — | 7:52 | — | — | 7:54 | — | — | 7:56 | — | — | 7:56 | — | — | 7:58 | — | — | 8:00 | — | — | |
— | 8:36 | — | — | 8:34 | — | — | 8:31 | — | — | 8:30 | — | — | 8:28 | — | — | 8:25 | — | — | 8:23 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 3 | — | — | — | — | — | — | — |
Temp °C | 17 | 18 | 18 | 19 | 20 | 19 | 18 | 17 | 16 | 15 | 16 | 16 | 17 | 17 | 16 | 16 | 17 | 17 | 17 | 18 | 16 |
Feels °C | 16 | 16 | 17 | 19 | 19 | 19 | 17 | 13 | 13 | 11 | 12 | 13 | 13 | 13 | 12 | 13 | 14 | 13 | 12 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | WNW 11 | WNW 11 | W 10 | W 9 | W 9 | W 8 | WNW 11 | — | WNW 8 | WNW 10 | WNW 10 | WNW 11 | WNW 10 | WNW 10 | WNW 9 | WNW 15 | WNW 14 | WNW 13 | WNW 13 | WNW 12 | WNW 12 |
631 | 608 | 231 | 130 | 127 | 90 | 107 | — | 488 | 922 | 1040 | 778 | 502 | 123 | 573 | 3009 | 2413 | 1619 | 1597 | 1491 | 1427 | |
Swell 2 Height (m) Direction Period (s) | S 13 | — | NW 11 | NW 10 | WNW 10 | NW 9 | — | — | — | — | WNW 12 | — | — | — | WNW 18 | WNW 11 | — | — | S 16 | — | SW 14 |
3 | — | 169 | 80 | 64 | 20 | — | — | — | — | 29 | — | — | — | 184 | 496 | — | — | 5 | — | 8 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | S 12 | S 12 | WNW 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | 3 | 3 | 16 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | W 8 | WNW 10 | — | — | — | — | — | WNW 9 | — | — | — | — | — | — | — |
— | — | — | — | — | — | 84 | 527 | — | — | — | — | — | 506 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 10 | 2 | 0 | 9 | 2 | 2 | 2 | 121 | 2 | 121 | 2 | 20 | 333 | 2 | 2 | 2 | 10 | 36 | 314 | 2 | 0 |
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.










