
Surf Forecasts:
Trestraou surf forecast from 12 Sep 2026:
- Best quality surf: Sunday 13 Sep, 2AM (local time) - 5ft (1.5m), 10s period, WNW swell with cross-offshore winds.
- Most powerful swell: Friday 18 Sep, 11AM (local time) - 5.5ft (1.7m), 13s period, WNW swell with 1,011 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 2AM (local time) - 5ft (1.5m), 10s period with WNW swell.
Best Forecast Surf Conditions for Trestraou this week:
The surf forecast for Trestraou over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 13) at 2AM. The primary swell is predicted to be 1.5m and 10s period with a secondary swell of 0.6m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Trestraou in the next 16 days are 1.7m 13s and forecast to arrive on Friday (Sep 18) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Tuesday (Sep 15) at 11AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Sun 13th Sep) | 5ft (1.5m) 10s |
| Best Surf | 2AM (Sun 13th Sep) | 5ft (1.5m) 10s |
| Most Powerful | 11AM (Fri 18th Sep) | 5.5ft (1.7m) 13s |
Table - best surf conditions forecast for Trestraou over the next 16 days.
The Lowdown
G’day, Rusty here. Look, I’m not gonna sugarcoat it – this is a pretty frustrating outlook for Trestraou over the next couple of weeks. The first week is a write-off, full of poor conditions and messy winds. There are a few bright spots tucked away in the second week, but we’re talking about a solid 7-day gap of nothing really worth paddling out for at the start. We don’t get a decent look until Sunday the 13th of September.
Alright, so let’s start with the only real window that has any promise. Sunday the 13th of September morning is the first time we see something half-decent. The water temperature is sitting at 65°, which is a touch warmer than normal for this time of year – feels nice. We’ve got a clean 5ft swell rolling in from the WNW with a 10-second period, giving us moderate wave energy (521). The wind is a gentle cross-off from the WSW at 9 mph, so it’ll be clean and lined up. This is the only window where I’d actually say “go for it” – the best on offer in the whole outlook. But look, it’s a single morning, so don’t sleep in.
Now, skipping ahead, we get another glimmer of hope on Friday the 18th of September morning. Swell is 6ft from the WNW, still a 10-second period, and the energy is solid (690). The wind is a gentle cross-off from the west at 9 mph. Clean conditions again. This is another standout, but it’s a little bigger – not too big for most, but beginners might find it a step up. The afternoon that same day gets a 6ft swell with a very long 13-second period (968 energy), but that long period at a beach-and-reef setup like Trestraou can make it break a bit straight. Still, it’s worth a look.
Then there’s Monday the 21st of September. This one is for the experts only. We’re looking at a 8ft swell from the WNW with a 13-second period – that’s massive energy (2359). It’s clean in the morning with a moderate cross-off wind from the SW at 16 mph. This is powerful, heavy stuff. Not for the faint-hearted or those on a foamie. The same goes for Tuesday the 22nd of September morning: 6ft from the WNW, long 12-second period, clean cross-off from the west at 9 mph. Good energy (1089). That’s a solid session for confident surfers.
The rest of the window? Honestly, it’s a mess. Strong winds, lumpy chop, onshore slop. Even when there’s swell, the quality just isn’t there. We get a big pulse on the 27th of September – 7ft with a very long 16-second period – but it’s blown out by a fresh cross-shore at 22 mph. That’s a kite-surfing setup, not a paddle-surfing one.
So, bottom line: don’t hold your breath for the first week. Your best bets are the mornings of the 13th, 18th, and 22nd of September. Get out there early, keep your eyes on the wind, and be ready for the bigger stuff on the 21st if you’ve got the balls for it. Rusty out.
Short Range ForecastMostly dry. Warm (max 22°C on Mon afternoon, min 16°C on Sat night). Winds increasing (calm on Mon night, fresh winds from the NW by Tue afternoon). | Days 5-7 Weather SummarySome drizzle, heaviest during Thu afternoon. Very mild (max 17°C on Fri afternoon, min 14°C on Wed night). Mainly fresh winds. | ||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | ||||||||||||||
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 10 | WNW 10 | WNW 10 | WNW 10 | W 9 | W 9 | W 8 | W 8 | WNW 10 | WNW 8 | WNW 9 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 9 | WNW 13 | WNW 13 | WNW 12 |
Wave Graph | |||||||||||||||||||
407 | 458 | 377 | 294 | 173 | 130 | 92 | 64 | 356 | 468 | 502 | 952 | 703 | 463 | 383 | 415 | 1011 | 865 | 703 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross-off | cross-off | on | glassy | cross-off | cross | cross-on | cross-on | cross | cross-off | cross-off | cross | cross | cross | cross-off | off |
High Tide | 8:22PM7.98m | 8:41AM7.77m | 8:55PM7.86m | 9:12AM7.63m | 9:27PM7.57m | 9:43AM7.34m | 9:58PM7.14m | 10:13AM6.91m | 10:30PM6.60m | 10:46AM6.40m | 11:05PM6.02m | 11:23AM5.84m | 11:48PM5.43m | ||||||
Low Tide | 2:37AM-0.26m | 2:52PM-0.07m | 3:11AM-0.06m | 3:26PM0.14m | 3:43AM0.31m | 3:59PM0.53m | 4:15AM0.81m | 4:31PM1.03m | 4:46AM1.38m | 5:05PM1.61m | 5:20AM1.98m | 5:43PM2.21m | |||||||
— | 7:46 | — | — | 7:48 | — | — | 7:48 | — | — | 7:50 | — | — | 7:52 | — | — | 7:52 | — | — | |
8:34 | — | 8:31 | — | — | 8:30 | — | — | 8:28 | — | — | 8:24 | — | — | 8:22 | — | — | 8:21 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — |
Temp °C | 17 | 18 | 21 | 18 | 20 | 22 | 19 | 18 | 17 | 16 | 15 | 16 | 15 | 16 | 16 | 16 | 16 | 17 | 17 |
Feels °C | 14 | 16 | 19 | 17 | 20 | 22 | 19 | 15 | 13 | 11 | 12 | 12 | 12 | 11 | 12 | 11 | 12 | 13 | 13 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | WNW 10 | WNW 10 | WNW 10 | W 9 | W 9 | W 8 | W 8 | — | — | WNW 9 | WNW 10 | WNW 10 | WNW 10 | — | WNW 9 | WNW 13 | WNW 13 | WNW 12 |
407 | 458 | 377 | 294 | 173 | 130 | 92 | 64 | — | — | 502 | 952 | 703 | 463 | — | 415 | 1011 | 865 | 703 | |
Swell 2 Height (m) Direction Period (s) | WNW 12 | — | — | — | — | — | W 13 | WNW 11 | — | — | WNW 13 | — | — | — | — | — | WNW 13 | — | — |
96 | — | — | — | — | — | 3 | 48 | — | — | 35 | — | — | — | — | — | 215 | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | WNW 8 | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | — | — | — | — | 7 | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | W 3 | WNW 10 | WNW 8 | — | — | — | — | WNW 10 | — | — | — | — |
— | — | — | — | — | — | — | 5 | 356 | 468 | — | — | — | — | 383 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 90 | 0 | 1 | 103 | 11 | 93 | 452 | 93 | 99 | 105 | 19 | 299 | 105 | 105 | 123 | 104 | 0 |
Best forecast wave conditions in Cote d'Armor - Brittany | |||||||||||||||||||
Best forecast wave conditions in France | |||||||||||||||||||
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Information about the Trestraou Surf forecast
The above surf forecast table for Trestraou provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Trestraou can be found by selecting the local surf guide option on the grey menu. Our Trestraou 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 (Trestraou) 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 Trestraou 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.
Are you planning a holiday in Cote d'Armor - Brittany? If you are looking for accommodation near Trestraou, camping, hotels and holiday cottages in Cote d'Armor - Brittany, consider staying in Lannion which is 9 km (6 miles) away. Other places in and around Cote d'Armor - Brittany where you can find information about places to rent, and car hire include Treguier which is 17 km (11 miles) away, Paimpol, Morlaix and Roscoff.










