Surf Forecasts:
Trestraou surf forecast from 17 Aug 2026:
- Most powerful swell: Thursday 20 Aug, 8AM (local time) - 7ft (2.1m), 9s period, WNW swell with 682 kJ wave energy.
Best Forecast Surf Conditions for Trestraou this week:
The most powerful waves expected at Trestraou in the next 16 days are 2.1m 9s and forecast to arrive on Thursday (Aug 20) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 6s period and expected on Tuesday (Aug 18) at 2PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Thu 20th Aug) | 7ft (2.1m) 9s |
Table - best surf conditions forecast for Trestraou over the next 16 days.
The Lowdown
Alright, this is Rusty. Let’s have a look at what’s on the table for Trestraou over the next couple of weeks.
Right off the bat, I gotta be straight with you – the first week is a write-off. We’ve got a solid run of very poor surf conditions starting Monday 17 August and running all the way through to Sunday 30 August. That’s a long stretch of flat or mushy junk, none of it worth paddling out for. The winds are mostly cross-off or cross, which sounds okay, but the swell heights are just too small and weak, or the period is too short to do anything with. The water temp is about average for the time of year at 65.7°, nothing wild there.
The real interest, the one small window that’s got my attention, is the very end of the run. Look at Sunday 31 August. Monday morning the 31st, we’ve got a solid 6.6 ft swell from the WNW, period jumping up to 11 seconds, and the energy is really pumping – 1223 which is strong. Winds are light and cross-off from the SW, which should keep it clean. That’s the best on offer by far. Monday afternoon gets even bigger, 7.5 ft, and the period stretches right out to 15 seconds – that’s a proper groundswell. That kind of period is going to make it peel nice and lined up at a point or reef setup, but be aware, if Trestraou is a beach break it might straighten out a touch with that long period. The wind stays favorable, but the energy is intense at 2272. This one is for experienced surfers only – over 8 ft is expert territory, and this is right on the edge. Swell direction is WNW, which is spot on for Trestraou’s optimum.
The first week of September, Tuesday the 1st, still has some size (5.9 ft) and a long period, but the wind is up to 22 mph, which will chop it up. It’ll be messy.
So here’s the bottom line: no surf at all for over a week, then one standout window around Monday 31 August. That’s your strike. Keep an eye on it, but remember, long-range calls like this are promising but not locked in yet. The spell of quiet is rough, but when it shows up, it could be worth the wait.
Short Range ForecastSome drizzle, heaviest during Wed morning. Warm (max 20°C on Mon afternoon, min 14°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Fri morning. Very mild (max 19°C on Thu afternoon, min 15°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||
Monday 17 | Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | |||||||||||||||
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 7 | WNW 9 | WNW 8 | W 6 | WNW 6 | WNW 6 | WNW 7 | WNW 8 | WNW 8 | WNW 9 | WNW 9 | WNW 9 | WNW 9 | NNE 6 | WNW 8 | W 10 | W 10 | W 9 | W 9 | W 9 | W 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 9 | 32 | 128 | 78 | 98 | 117 | 193 | 338 | 483 | 623 | 528 | 517 | 300 | 96 | 58 | 47 | 47 | 27 | 25 | 14 | 15 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross | cross | cross-on | on | cross-on | on | on | cross-on | cross-on | on | on |
High Tide | 10:22AM7.24m | 10:37PM7.18m | 10:56AM6.82m | 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 | |||||||
Low Tide | 4:33PM0.59m | 4:53AM0.75m | 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 | ||||||||
 | |  |  | | |  | |  | |  | | | | | | | | | | | |
 | 7:07 | — | — | 7:09 | — | — | 7:11 | — | — | 7:11 | — | — | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — |
 | — | — | 9:25 | — | — | 9:23 | — | — | 9:22 | — | — | 9:20 | — | — | 9:19 | — | — | 9:16 | — | — | 9:15 |
mm | — | — | — | — | — | — | 1 | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — |
Temp °C | 18 | 20 | 19 | 20 | 20 | 18 | 18 | 20 | 18 | 18 | 19 | 18 | 17 | 18 | 17 | 17 | 18 | 18 | 18 | 19 | 18 |
Feels °C | 18 | 18 | 17 | 18 | 18 | 16 | 14 | 16 | 15 | 14 | 15 | 15 | 14 | 15 | 15 | 15 | 15 | 14 | 12 | 14 | 14 |
Swell 1 Height (m) Direction Period (s) | W 7 | WNW 9 | — | — | W 8 | W 17 | NW 13 | — | W 15 | WNW 9 | — | — | WNW 9 | WNW 8 | WNW 8 | NW 7 | W 10 | W 9 | W 9 | NW 4 | W 9 |
| kJ | 9 | 32 | — | — | 11 | 6 | 7 | — | 4 | 623 | — | — | 300 | 96 | 58 | 35 | 47 | 27 | 25 | 5 | 15 |
Swell 2 Height (m) Direction Period (s) | WNW 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | NE 5 | W 10 | WNW 8 | NW 7 | NW 5 | W 9 | W 14 |
| kJ | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | 20 | 47 | 23 | 13 | 7 | 14 | 4 |
Swell 3 Height (m) Direction Period (s) | NW 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | W 9 | ENE 6 | W 15 | W 15 | E 4 | W 14 | W 6 |
| kJ | 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | 13 | 3 | 4 | 4 | 1 | 4 | 1 |
Wind waves Height (m) Direction Period (s) | NW 4 | WNW 4 | WNW 8 | W 6 | WNW 6 | WNW 6 | WNW 7 | WNW 8 | WNW 8 | — | WNW 9 | WNW 9 | — | NNE 6 | — | NE 4 | ENE 6 | ENE 4 | NE 4 | NNE 3 | NW 4 |
| kJ | 8 | 26 | 128 | 78 | 98 | 117 | 193 | 338 | 483 | — | 528 | 517 | — | 93 | — | 4 | 24 | 13 | 2 | 1 | 12 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 281 | 600 | 105 | 118 | 804 | 119 | 124 | 104 | 19 | 99 | 201 | 19 | 95 | 105 | 100 | 93 | 116 | 105 | 173 | 592 | 429 |
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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