Surf Forecasts:
Trestraou surf forecast from 18 Aug 2026:
- Best quality surf: Friday 21 Aug, 8AM (local time) - 5ft (1.6m), 10s period, WNW swell with cross-offshore winds.
- Most powerful swell: Thursday 20 Aug, 8PM (local time) - 6.5ft (2.0m), 9s period, WNW swell with 669 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 8AM (local time) - 5ft (1.6m), 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 Friday (Aug 21) at 8AM. The primary swell is predicted to be 1.6m and 10s period. 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 2.0m 9s and forecast to arrive on Thursday (Aug 20) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Sunday (Aug 23) at 8PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Fri 21st Aug) | 5ft (1.6m) 10s |
| Best Surf | 8AM (Fri 21st Aug) | 5ft (1.6m) 10s |
| Most Powerful | 8PM (Thu 20th Aug) | 6.5ft (2.0m) 9s |
Table - best surf conditions forecast for Trestraou over the next 16 days.
The Lowdown
Alright, let’s talk about it in feet and miles per hour. This is Rusty, and Trestraou is havin’ a rough patch.
We kick off with a long, flat spell. From Tuesday the 18th of August right through to the 27th, it’s mostly small, onshore, or plain messy. Wednesday the 19th gives us a 4ft swell from the WNW with a short 7-second period and a cross-off breeze at 15 mph. That’s weak energy (125). Thursday the 20th bumps up to 7ft but gets torn apart by a 19 mph cross-off wind, even with energy at 573. It’s a washout.
Then we hit the doldrums from the 22nd to the 24th, with swell droppin’ below 2ft. A proper dry spell. Onshore winds and lumpy conditions. No surf to be had.
One bright spot: Thursday morning the 27th. We get a solid 6ft swell from the west with a fresh offshore wind blowin’ at 22 mph from the south. The water is a touch warmer than average. The energy is strong at 540, and it’ll be glassy clean. But that offshore wind is strong—it’ll make paddlin’ a battle. This is expert territory only.
The rest of the run is a mix of strong cross-off winds and lumpy chop. Tuesday the 1st of September sees 8ft from the west, but it’s a messy cross-shore with heavy chop (energy at 744). Big, but ugly.
The most promising day is Wednesday morning the 2nd of September. A 7ft swell from the WNW with a moderate cross-off breeze and decent energy (536). It’s still just a marginal call, but it’s the cleanest window we got in the whole two weeks.
Bottom line: Trestraou is a tough call right now. Not much on offer. Keep your eyes on the 2nd, but don’t count on it.
Rusty.
Short Range ForecastModerate rain (total 14mm), heaviest on Wed morning. Warm (max 21°C on Tue afternoon, min 15°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 35mm), heaviest during Sun afternoon. Very mild (max 18°C on Fri afternoon, min 14°C on Sun afternoon). Winds increasing (light winds from the NNW on Fri night, fresh winds from the NE by Sun morning). | |||||||||||||||||||
Tue 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | ||||||||||||||
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 6 | WNW 7 | WNW 7 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | WNW 10 | WNW 9 | WNW 9 | WNW 8 | WNW 6 | NE 6 | NE 5 | NE 5 | NE 5 | W 8 | W 8 | W 9 | W 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 129 | 105 | 125 | 232 | 409 | 573 | 659 | 575 | 307 | 243 | 140 | 49 | 80 | 69 | 51 | 35 | 12 | 12 | 14 | 13 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross | cross | cross | cross-on | cross-on | on | on | on | cross-on | on | on | cross-on | on | cross-off |
High Tide | 11:12PM6.62m | 11:32AM6.32m | 11:51PM6.03m | 12:13PM5.79m | 00:39AM5.46m | 1:09PM5.31m | 1:49AM5.02m | 2:34PM5.02m | 3:29AM4.88m | 4:13PM5.11m | 4:58AM5.14m | 5:25PM5.52m | ||||||||
Low Tide | 5:09PM1.10m | 5:28AM1.35m | 5:47PM1.68m | 6:06AM1.97m | 6:29PM2.26m | 6:52AM2.54m | 7:29PM2.76m | 8:06AM2.97m | 9:11PM3.00m | 9:59AM3.01m | 10:52PM2.75m | 11:18AM2.63m | 11:51PM2.25m | |||||||
 |  |  |  |  | |  |  | | | | |  |  | | |  | | | | |
 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — | 7:18 | — | — |
 | — | 9:23 | — | — | 9:22 | — | — | 9:20 | — | — | 9:19 | — | — | 9:16 | — | — | 9:15 | — | — | 9:13 |
mm | — | — | 9 | 4 | — | 1 | — | — | — | — | — | — | 2 | 3 | 5 | 9 | 14 | 2 | 1 | — |
Temp °C | 21 | 19 | 18 | 19 | 18 | 18 | 19 | 18 | 17 | 18 | 17 | 17 | 18 | 18 | 16 | 15 | 17 | 16 | 18 | 17 |
Feels °C | 19 | 17 | 18 | 16 | 14 | 13 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 11 | 9 | 13 | 13 | 16 | 16 |
Swell 1 Height (m) Direction Period (s) | — | W 17 | WNW 7 | W 16 | — | — | WNW 9 | WNW 10 | WNW 9 | WNW 9 | WNW 8 | WNW 6 | NW 6 | WNW 7 | WNW 6 | NW 6 | NE 5 | W 8 | W 9 | W 9 |
| kJ | — | 6 | 125 | 5 | — | — | 659 | 575 | 307 | 243 | 140 | 49 | 21 | 19 | 15 | 9 | 8 | 12 | 14 | 13 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | N 4 | W 16 | W 9 | W 9 | W 9 | W 9 | W 9 | WNW 6 | NE 4 | NW 8 | NW 5 |
| kJ | — | — | — | — | — | — | — | — | — | 1 | 5 | 23 | 27 | 23 | 13 | 14 | 7 | 1 | 3 | 4 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | W 15 | — | W 15 | W 14 | W 14 | W 8 | NW 9 | — | W 8 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 4 | — | 4 | 4 | 4 | 12 | 3 | — | 1 |
Wind waves Height (m) Direction Period (s) | WNW 6 | WNW 7 | — | WNW 9 | WNW 9 | WNW 9 | — | — | — | — | NNE 4 | NNE 4 | NE 6 | NE 5 | NE 5 | NE 5 | — | NW 4 | NW 4 | — |
| kJ | 129 | 105 | — | 232 | 409 | 573 | — | — | — | — | 6 | 7 | 80 | 69 | 51 | 35 | — | 9 | 5 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 452 | 19 | 104 | 98 | 19 | 390 | 329 | 19 | 19 | 104 | 93 | 116 | 188 | 100 | 105 | 199 | 215 | 243 | 600 | 607 |
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.
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