
Surf Forecasts:
Trestraou surf forecast from 10 Sep 2026:
- Best quality surf: Friday 11 Sep, 2AM (local time) - 6ft (1.8m), 10s period, W swell with offshore winds.
- Most powerful swell: Sunday 13 Sep, 8AM (local time) - 5.5ft (1.7m), 11s period, WNW swell with 643 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 11PM (local time) - 4.5ft (1.3m), 8s period with W 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 Thursday (Sep 10) at 11PM. The primary swell is predicted to be 1.3m and 8s period with a secondary swell of 0.5m and 11s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Trestraou in the next 16 days are 1.7m 11s and forecast to arrive on Sunday (Sep 13) 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 0.5m 4s period and expected on Saturday (Sep 12) at 8PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Thu 10th Sep) | 4.5ft (1.3m) 8s |
| Best Surf | 2AM (Fri 11th Sep) | 6ft (1.8m) 10s |
| Most Powerful | 8AM (Sun 13th Sep) | 5.5ft (1.7m) 11s |
Table - best surf conditions forecast for Trestraou over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down what’s happening for this stretch of coastline.
It’s a pretty slow start for the first week and a half. From Thursday the 10th through the middle of the month, we’re looking at mostly small, weak swell and wind that’s often cross or cross-onshore, keeping the surf messy. A few mornings clean up, like Saturday the 12th morning and Tuesday the 15th morning, but the swell is tiny—around 2 to 3 feet—so not much to get excited about. The combined energy is low, mostly under 200 (weak), so you’re looking at dribbly, weak waves.
Then we get a bit more size on Sunday the 13th with a 5-foot swell from the WNW, but the wind is still cross-shore, so it’s a bit of a letdown. Energy bumps up to 551 (moderate), but it’s still marginal. The following week stays frustrating: a lot of onshore wind from the north, especially strong on Wednesday the 16th with 22 mph winds and 7-foot swell, but it’s a choppy, blown-out mess. Energy hits 683 (moderate-strong), but you wouldn’t want to be out there unless you’re on a kite.
The real standout, and I mean the absolute gem in this 16-day window, is Sunday the 20th. We’ve got a solid 5-foot groundswell from the WNW, and the period is a very long 16 seconds. That’s proper energy rolling in—combined energy is a massive 2108 (strong). The morning is glassy, with a light 3 mph wind from the NNW, so the surface will be clean as a whistle. This is the kind of day that has excellent surf conditions for experienced surfers. The long period will make the waves powerful and well-shaped, but it might be a bit too straight for the beach break here—better suited to a point or reef. The 8-foot afternoon swell is big and heavy, only for the experts, and the wind swings onshore, so the morning window is your only chance.
The following Monday the 21st has a decent 6-foot swell from the WNW with a 12-second period, and the wind is light cross from the WNW, so it’s still rideable, but not as clean as Sunday. Energy is 902 (moderate-strong). After that, the surf drops off again, with weaker swells and stronger cross-onshore winds returning through the end of the month.
So, if you’re picking your days, Sunday the 20th is the one to circle. It’s the only true standout with glassy conditions and a proper, long-period groundswell. The rest of the run is mostly a write-off.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Fri afternoon, min 14°C on Wed night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Tue afternoon, min 16°C on Sun night). Wind will be generally light. | ||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | ||||||||||||||
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 9 | WNW 9 | W 8 | W 10 | W 10 | W 9 | W 8 | W 8 | W 8 | WNW 10 | WNW 11 | WNW 10 | W 10 | W 9 | W 9 | W 9 | W 8 | WNW 8 | WNW 7 |
Wave Graph | |||||||||||||||||||
197 | 88 | 64 | 614 | 470 | 270 | 140 | 130 | 147 | 492 | 551 | 363 | 284 | 175 | 133 | 73 | 47 | 79 | 504 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross | off | cross | cross-on | off | cross-off | cross | cross-off | cross | cross | cross-off | glassy | cross-on | cross-off | off | cross-on | cross-on |
High Tide | 6:54AM7.11m | 7:09PM7.58m | 7:33AM7.51m | 7:47PM7.89m | 8:08AM7.74m | 8:22PM7.98m | 8:41AM7.77m | 8:55PM7.86m | 9:12AM7.63m | 9:27PM7.57m | 9:43AM7.34m | 9:58PM7.14m | |||||||
Low Tide | 00:42AM0.49m | 1:00PM0.51m | 1:24AM0.02m | 1:40PM0.10m | 2:02AM-0.24m | 2:17PM-0.09m | 2:37AM-0.26m | 2:52PM-0.07m | 3:11AM-0.06m | 3:26PM0.14m | 3:43AM0.31m | 3:59PM0.53m | 4:15AM0.81m | ||||||
— | 7:41 | — | — | 7:43 | — | — | 7:45 | — | — | 7:46 | — | — | 7:48 | — | — | 7:48 | — | — | |
8:39 | — | 8:37 | — | — | 8:36 | — | — | 8:34 | — | — | 8:31 | — | — | 8:30 | — | — | 8:28 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 19 | 18 | 18 | 20 | 18 | 17 | 20 | 18 | 17 | 18 | 16 | 18 | 23 | 21 | 23 | 26 | 20 |
Feels °C | 14 | 13 | 16 | 14 | 17 | 18 | 17 | 15 | 18 | 15 | 16 | 17 | 16 | 18 | 21 | 18 | 21 | 25 | 18 |
Swell 1 Height (m) Direction Period (s) | WNW 9 | WNW 9 | WSW 8 | W 10 | W 10 | W 9 | W 8 | W 8 | W 8 | WNW 10 | WNW 11 | WNW 10 | W 10 | W 9 | W 9 | W 9 | W 8 | WNW 8 | WNW 10 |
197 | 88 | 19 | 614 | 470 | 270 | 140 | 130 | 147 | 492 | 551 | 363 | 284 | 175 | 133 | 73 | 47 | 79 | 104 | |
Swell 2 Height (m) Direction Period (s) | W 13 | WSW 8 | W 11 | — | — | — | — | NW 16 | NW 14 | — | — | — | — | — | — | WNW 9 | WNW 8 | WNW 11 | — |
3 | 21 | 10 | — | — | — | — | 10 | 47 | — | — | — | — | — | — | 8 | 36 | 65 | — | |
Swell 3 Height (m) Direction Period (s) | — | W 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | W 13 | WNW 12 | W 8 | — |
— | 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | 13 | 12 | — | |
Wind waves Height (m) Direction Period (s) | — | SW 3 | W 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NNW 2 | WNW 7 |
— | 2 | 64 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 504 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 19 | 129 | 0 | 19 | 104 | 2 | 19 | 103 | 19 | 19 | 104 | 0 | 1 | 92 | 11 | 19 | 90 | 93 |
Best forecast wave conditions in Cote d'Armor - Brittany | |||||||||||||||||||
Best forecast wave conditions in France | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.










