Surf Forecasts:
Trestraou surf forecast from 21 Aug 2026:
- Most powerful swell: Friday 28 Aug, 5AM (local time) - 5.5ft (1.7m), 10s period, W swell with 592 kJ wave energy.
Best Forecast Surf Conditions for Trestraou this week:
The most powerful waves expected at Trestraou in the next 16 days are 1.7m 10s and forecast to arrive on Friday (Aug 28) at 5AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 7s period and expected on Monday (Aug 24) at 11PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5AM (Fri 28th Aug) | 5.5ft (1.7m) 10s |
Table - best surf conditions forecast for Trestraou over the next 16 days.
The Lowdown
Alright folks, Rusty here again, this time in feet and miles. Let’s look at what’s on offer. The start of this forecast is a total write-off. We’re looking at a dry run of several days before anything even comes close to ridable. The real glimmer is way off in the second week.
The Overall Pattern
The first week is dominated by weak, messed up swell. The wind is mostly cross-shore and lumpy, the period is short, so the waves are just sloppy. The water temp registers at 66°F, a touch warmer than normal for this time of year. The only hope comes late in the run when a stronger swell arrives, but it comes with some serious wind.
From now through late August:
From Friday, 21st August through Monday, 24th August, it’s a no-go zone. Small, cross-onshore swells from the WNW and ENE, with short periods between 4 and 10 seconds. The surf is choppy and disorganised. The wave energy is moderate at best, hitting 162 on Monday afternoon. There’s no reason to get wet.
We get a tiny window of clean conditions on Tuesday, 25th August, with light offshore wind and a little WNW swell of just 1 ft. The water is glassy, but there’s almost nothing to ride.
Wednesday, 26th and Thursday, 27th August bring steady offshore wind from the SSW and SW. Swell sizes are between 2 ft and 4 ft, with moderate energy (243 at peak) and 8 to 9 second periods. Conditions are clean, but still not enough power to get excited about.
Best on Offer – Late Window
Saturday, 29th August, is the standout from this whole 16-day run. A solid WNW swell pushes through at around 6 ft to 7 ft. The combined wave energy is strong (579 and 547), and the wind is a moderate cross-offshore breeze, keeping the surface clean. This is proper surf at Trestraou, but with a short period of only 8-9 seconds, expect it to be a bit jumbled. The size here is in the experienced surfer range. And yeah, crowds can show up here sometimes, so you won’t be alone.
Friday, 28th August also shows a 6 ft WNW swell with very strong energy (612), but the wind is a near gale. It’s clean, but gusty as hell.
Because Saturday the 29th is the pick: At Trestraou, look for a WNW swell at 6 ft to 7 ft, period 8-9 seconds, moderate cross-offshore wind. The wave energy is strong. It’s a day for the competent crew; there will be punch in the water but the short period means you’ll have to work for it.
After Saturday, it fades back down. The first week of September is back to knee-high slop.
So, for this forecast, endure the flat first week and set your sights on Saturday, 29th August. It’s the only real highlight in the bunch.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Fri morning. Warm (max 20°C on Sun afternoon, min 15°C on Fri morning). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 4mm), mostly falling on Tue night. Warm (max 24°C on Tue afternoon, min 16°C on Wed night). Winds decreasing (fresh winds from the E on Mon afternoon, light winds from the SW by Tue night). | ||||||||||||||||||||
Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | |||||||||||||||
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 10 | WNW 9 | WNW 8 | WNW 8 | W 9 | ENE 5 | E 5 | ENE 4 | ENE 5 | ENE 5 | ENE 6 | NW 12 | WNW 11 | WNW 10 | WNW 9 | W 9 | WSW 9 | W 8 | W 8 | W 8 | W 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 391 | 202 | 188 | 50 | 43 | 27 | 34 | 29 | 69 | 117 | 156 | 6 | 22 | 39 | 33 | 41 | 243 | 104 | 165 | 161 | 201 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | off | off | off | off | cross-off | off | off | off |
High Tide | 1:09PM5.31m | 1:49AM5.02m | 2:34PM5.02m | 3:29AM4.88m | 4:13PM5.11m | 4:58AM5.14m | 5:25PM5.52m | 5:56AM5.60m | 6:14PM6.04m | 6:37AM6.11m | 6:51PM6.57m | 7:12AM6.59m | 7:24PM7.04m | ||||||||
Low Tide | 7:29PM2.76m | 8:06AM2.97m | 9:11PM3.00m | 9:59AM3.01m | 10:52PM2.75m | 11:18AM2.63m | 11:51PM2.25m | 12:07PM2.11m | 00:32AM1.69m | 12:45PM1.57m | 1:07AM1.15m | 1:19PM1.08m | 1:39AM0.67m | ||||||||
 | |  |  |  |  | | | |  | | | |  |  | | | |  | |  | |
 | 7:13 | — | — | 7:15 | — | — | 7:16 | — | — | 7:18 | — | — | 7:18 | — | — | 7:20 | — | — | 7:22 | — | — |
 | — | — | 9:19 | — | — | 9:16 | — | — | 9:15 | — | — | 9:13 | — | — | 9:10 | — | — | 9:08 | — | — | 9:07 |
mm | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 1 | — | — | 1 | 2 | 3 |
Temp °C | 17 | 18 | 17 | 18 | 19 | 18 | 18 | 20 | 19 | 19 | 23 | 21 | 22 | 24 | 24 | 20 | 23 | 20 | 18 | 21 | 19 |
Feels °C | 15 | 15 | 14 | 15 | 14 | 13 | 13 | 14 | 14 | 12 | 17 | 15 | 22 | 23 | 23 | 15 | 18 | 16 | 13 | 16 | 14 |
Swell 1 Height (m) Direction Period (s) | WNW 10 | WNW 9 | WNW 8 | WNW 8 | W 9 | W 9 | W 9 | W 9 | WSW 10 | WSW 10 | SW 9 | W 9 | NE 7 | NE 6 | WNW 9 | W 9 | SE 4 | W 8 | W 8 | W 8 | WNW 11 |
| kJ | 391 | 202 | 188 | 50 | 43 | 24 | 13 | 6 | 20 | 9 | 3 | 2 | 77 | 32 | 33 | 41 | 1 | 104 | 165 | 161 | 90 |
Swell 2 Height (m) Direction Period (s) | — | NNE 4 | NE 4 | W 9 | WNW 8 | NW 6 | WNW 7 | NW 7 | NW 6 | W 9 | W 9 | NW 12 | WNW 11 | WNW 10 | NE 6 | WSW 7 | — | SW 8 | — | SE 4 | — |
| kJ | — | 3 | 3 | 27 | 22 | 10 | 4 | 2 | 1 | 2 | 2 | 6 | 22 | 39 | 8 | 5 | — | 17 | — | 1 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | W 15 | W 15 | W 15 | W 14 | W 13 | W 10 | W 6 | W 8 | SW 9 | W 8 | W 8 | SW 8 | NE 5 | — | — | — | SE 4 | — |
| kJ | — | — | — | 4 | 4 | 4 | 4 | 3 | 2 | 1 | 1 | 3 | 1 | 1 | 3 | 1 | — | — | — | 1 | — |
Wind waves Height (m) Direction Period (s) | NNE 4 | — | — | NNE 4 | NE 5 | ENE 5 | E 5 | ENE 4 | ENE 5 | ENE 5 | ENE 6 | NE 7 | — | — | SW 3 | SSW 4 | WSW 9 | — | S 3 | — | W 8 |
| kJ | 3 | — | — | 3 | 26 | 27 | 34 | 29 | 69 | 117 | 156 | 323 | — | — | 6 | 13 | 243 | — | 8 | — | 201 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 99 | 173 | 93 | 11 | 100 | 105 | 196 | 104 | 188 | 188 | 167 | 20 | 2 | 72 | 90 | 208 | 451 | 2 | 103 | 104 | 580 |
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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