Trestraou Surf Break

Lat Long: 48.82° N 3.46° W

Trestraou Surf Forecast and Surf Report

Issued: 7 pm 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Trestraou sea temperature is
18.7° C
0.9° 

Trestraou surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Trestraou surf forecast from 17 Aug 2026:

  • Best quality surf: Wednesday 19 Aug, 2PM (local time) - 4.5ft (1.4m), 9s period, WNW swell with cross-offshore winds.
  • Most powerful swell: Thursday 20 Aug, 11PM (local time) - 6ft (1.9m), 10s period, WNW swell with 637 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 19 Aug, 2PM (local time) - 4.5ft (1.4m), 9s 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 Wednesday (Aug 19) at 2PM. The primary swell is predicted to be 1.4m and 9s 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 1.9m 10s and forecast to arrive on Thursday (Aug 20) at 11PM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+) 2PM (Wed 19th Aug)4.5ft (1.4m) 9s
Best Surf 2PM (Wed 19th Aug)4.5ft (1.4m) 9s
Most Powerful11PM (Thu 20th Aug)6ft (1.9m) 10s

Table - best surf conditions forecast for Trestraou over the next 16 days.


The Lowdown

Alright, mates, Rusty here. Let’s be straight with you. The next couple of weeks at Trestraou are looking pretty grim for a proper surf. We’ve got a long stretch of small, messy, and onshore conditions ahead, so don’t get your hopes up for anything decent until we get deep into the second week. The swell energy is weak to moderate for most of this period, with readings mostly in the 100s and low 500s (143-530) range, and the wind is just never your friend. It’s a waiting game.

The first few days, from Tuesday the 18th through the weekend, are a total loss. We’ve got cross-off winds, but the swell is just too weak and short-period, barely scraping 3ft to 5ft with periods of 6-9 seconds. It’s clean-looking, but there’s just no push. The energy is weak to moderate (96-300) and it’s just not worth paddling out for. Then Thursday and Friday the wind swings onshore and it gets choppy and lumpy, and the swell drops right off. This run of poor conditions looks set to continue right through the 31st. Don't bother.

Now, here’s where things get interesting. We’ve got a standout window arriving on Tuesday, the 1st of September. After all that junk, a proper groundswell shows up. Tuesday morning is looking like the pick of the entire forecast. The swell jumps to a solid 8ft from the WNW with a long 11-second period, and the energy is reading a massive 1756, which is strong to very strong. The wind is light and offshore from the SW, leaving it glassy and clean. This is a proper session. This is not for beginners, this is for the crew who want a proper, powerful wave. It’s going to be big and lined up. Get on it.

The afternoon of the 1st will still have size, around 8ft, but the wind goes light cross-onshore, so it’ll get a little bumpy. And then Wednesday the 2nd still holds some promise with a 7ft WNW swell and a moderate offshore wind, keeping the waves clean. This is your second good window, but Tuesday morning is the one to circle on the calendar. It's a long way out, so treat it as a promising bet, not a certainty, but all the signs are pointing to a proper day.

For what it’s worth, the water is about average for this time of year, nothing wild on the temperature front. The breaks are sheltered, so they might handle the size a bit better, but it’s still gonna be a heavy one.

So, save your energy for that first day of September. It’s going to be worth the wait.

Rusty.

Short Range Forecast

Light rain (total 6mm), mostly falling on Wed morning. Warm (max 21°C on Tue afternoon, min 15°C on Wed night). Mainly fresh winds.

Days 5-7 Weather Summary

Light rain (total 7mm), mostly falling on Sun afternoon. Very mild (max 19°C on Sat afternoon, min 14°C on Sun afternoon). Winds increasing (light winds from the WNW on Fri morning, fresh winds from the NE by Sat afternoon).

Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
WNW
8
1
W
6
1
WNW
6
1.1
WNW
7
1.2
WNW
7
1.4
WNW
9
1.7
WNW
9
1.9
WNW
9
1.8
WNW
9
1.8
WNW
10
1.3
WNW
9
1
WNW
9
0.8
WNW
8
1.3
ENE
5
1.3
NE
6
0.4
W
9
0.3
W
9
0.9
ENE
5
0.7
NE
4
Wave Graph
Metric surfscale
Energy kJ
128
81
85
102
143
300
456
530
510
587
271
166
87
83
111
24
15
33
18
Wind (km/h)
20
W
25
WSW
25
W
20
W
15
WSW
15
W
25
WSW
30
W
25
WNW
15
WNW
10
NW
10
N
10
ENE
15
ENE
35
NE
25
NE
30
NE
15
E
15
NNE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
on
High Tide
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
4:53AM0.75m
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
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light rain
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clear
clear
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rain showers
rain showers
light rain
part cloud
light rain
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<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:09
7:11
7:11
7:13
7:15
7:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:25
9:23
9:22
9:20
9:19
9:16
9:15
 mm
4
2
1
1
1
4
Temp °C
20
20
21
19
16
18
18
18
19
18
17
18
17
18
19
18
17
16
16
Feels °C
19
18
19
18
15
16
15
13
15
15
15
16
15
16
14
11
11
11
14
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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