Tronoen Surf Break

Lat Long: 47.85° N 4.35° W

Tronoen Surf Forecast and Surf Report

Issued: 1 pm 25 Aug 2026 (local time)

Forecast update in  hr  min

Today's Tronoen sea temperature is
17.1°C
1.1° 

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


Tronoen surf forecast from 25 Aug 2026:

  • Most powerful swell: Monday 31 Aug, 5AM (local time) - 10ft (3.0m), 9s period, W swell with 1,367 kJ wave energy.

Best Forecast Surf Conditions for Tronoen this week:

The most powerful waves expected at Tronoen in the next 16 days are 3.0m 9s and forecast to arrive on Monday (Aug 31) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Wednesday (Aug 26) at 5PM.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 5AM (Mon 31st Aug)10ft (3.0m) 9s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s cooking for the next couple of weeks at Tronoen. I’ll be straight with you—this is a rough stretch for the most part. We’ve got some size coming through, but the wind is the story, and it’s not a good one. You’ll be battling onshore, cross-onshore, and even some strong onshores through most of the run. The water is sitting at 63°, which is a bit colder than we’d expect for this time of year, so you’ll want a decent steamer.

The first surfable mention is Tuesday the 25th of August, but it’s not worth paddling out for. The swell is a tiny 2 ft from the WNW with a short, weak period of 10 seconds. The combined energy is a measly 95 (weak energy), and you’ve got a cross-onshore wind from the SW at 12 mph making it choppy. It’s a poor outlook.

Through Wednesday and Thursday, the swell stays small (2 ft to 5 ft) and the wind stays messy. The only slight relief is a window on Wednesday afternoon with a light rain and a cross-offshore wind from the ESE at 16 mph that cleans things up a bit. But with a swell of 2 ft and a period of just 8 seconds, it’s barely a ripple. The energy is only 50 (weak). It’s a pass.

The real size shows up starting Friday the 28th, but it’s a total loss. We’re looking at 7 ft to 7 ft from the west, but the wind is howling onshore at 22-25 mph. The energy jumps to 413 and 588 (moderate), but the surf will be a blown-out, lumpy mess. Saturday the 29th pushes even bigger, with 10 ft and 8 ft swells, but again, strong onshore winds. The energy hits 1093 (strong) on Saturday morning, but it’s a washing machine. This is expert-only territory at best, and with the wind square onshore, it’s honestly looking more interesting for kite surfing than for paddle surfing.

The first week of September isn’t any kinder. Monday the 31st of August has an 8 ft swell from the west with a 9-second period and a cross-onshore wind, giving it a strong energy of 1075, but the report says it’s marginal at best due to tide issues. The rest of the first week is a mix of 5 ft to 8 ft swells, all with poor wind conditions. The wind is consistently from the west or southwest, keeping things choppy or messy.

Now, hold on. There is a glimmer. Friday the 4th of September (that’s over a week away) shows a small but clean window. The swell drops to 3 ft from the NW with a longer period of 10 seconds, and the wind is a light cross-offshore from the north at 9 mph. The energy is 352 (moderate). The report calls it “clean” and “marginal” due to tides, but that’s the best we’ve seen. The swell direction matches the optimum (WSW) nicely enough. It’s not a standout, but it’s the only option that doesn’t make you want to cry.

Then we get into the second week. The real standout is Tuesday the 8th of September. That afternoon, we’ve got an 8 ft swell from the west with a very long period of 14 seconds. The combined energy is a massive 3093 (strong to very strong). The wind is onshore from the SW at 12 mph, but the report says it’s marginal, not poor. That long period means it’s a proper groundswell, and those waves will have some serious push. It’s a point break or reef setup kind of day, not a beach break. The wind is the only thing holding it back from being epic. If you’re an expert, that’s your window. It’s the best on offer, but it’s a long way out, so keep an eye on the forecasts.

The rest of the second week is a mix of 7 ft to 8 ft swells with onshore winds. Nothing to write home about.

So, the honest truth? There’s no day that I’d get excited about launching the car for. The 8th of September has the best potential, but it’s a long-shot this far out. If you’re desperate, the 4th of September might give you a few clean smaller waves in the morning. Otherwise, save your energy and wait for the next system to line up the winds.

Rusty.

Short Range Forecast

Moderate rain (total 13mm), heaviest on Wed night. Warm (max 20°C on Tue afternoon, min 17°C on Wed night). Winds increasing (light winds from the SSE on Tue night, strong winds from the W by Fri morning).

Days 5-7 Weather Summary

Moderate rain (total 11mm), heaviest on Sat morning. Warm (max 20°C on Sun morning, min 17°C on Sun night). Winds decreasing (strong winds from the W on Fri afternoon, light winds from the SSW by Sat night).

Tue
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
PM
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
0
0
0
0
0
0
0
0
0
0
0
1
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
WNW
10
0.6
WNW
10
0.6
WNW
9
0.5
W
8
0.5
W
8
1.6
SW
7
1.6
SW
8
1.3
WSW
7
2.1
W
7
2.2
W
8
1.7
WNW
8
3
WSW
8
2.5
WSW
8
2.4
W
9
1.7
W
9
2.1
WSW
9
3
W
8
2.5
W
9
2.3
W
9
1.7
W
10
Wave Graph
Metric surfscale
Energy kJ
57
74
62
34
29
269
298
177
413
588
339
1093
889
881
463
651
1060
1075
874
550
Wind (km/h)
20
SW
15
SSW
15
S
25
ESE
20
SSW
20
SW
20
SSW
25
SSW
40
W
35
W
25
SW
30
W
25
W
20
WSW
30
SSW
30
W
30
W
20
WNW
20
W
10
SW
Wind State
cross-on
cross-on
cross
cross-off
cross-on
cross-on
cross-on
cross-on
on
cross-on
on
cross-on
on
on
cross-on
on
cross-on
cross-on
cross-on
cross-on
High Tide
4:17PM3.47m
4:36AM3.41m
4:49PM3.74m
5:07AM3.64m
5:19PM3.97m
5:36AM3.83m
5:49PM4.14m
6:06AM3.97m
6:20PM4.25m
6:37AM4.05m
6:51PM4.26m
7:09AM4.06m
7:24PM4.19m
Low Tide
10:24PM0.83m
10:34AM0.75m
10:59PM0.57m
11:08AM0.51m
11:31PM0.35m
11:40AM0.33m
00:03AM0.19m
12:12PM0.21m
00:34AM0.12m
12:44PM0.16m
1:06AM0.12m
1:17PM0.20m
1:39AM0.22m
part cloud
clear
part cloud
light rain
rain showers
part cloud
cloud
thunderstorm
rain showers
rain showers
rain showers
rain showers
cloud
part cloud
light rain
thunderstorm
clear
cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:26
7:26
7:28
7:30
7:31
7:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:13
9:10
9:08
9:07
9:05
9:02
9:00
 mm
1
8
1
3
1
1
5
2
2
Temp °C
20
19
20
20
19
19
19
19
18
18
18
19
19
18
20
20
18
17
18
18
Feels °C
19
18
20
19
18
17
16
17
12
11
13
16
16
15
16
17
13
14
15
17
  • Map Icons:
  • Break
  • 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 Tronoen Surf forecast

The above surf forecast table for Tronoen provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Tronoen can be found by selecting the local surf guide option on the grey menu. Our Tronoen 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 (Tronoen) 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 Tronoen 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.

Tronoen is 13 km (8 miles) from the city of Loctudy. If you plan a holiday in Finistere - Brittany, look for hotels and other accommodation in Loctudy. Loctudy has rooms for a wide range of budgets as well as car hire and transport links.

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