Tronoen Surf Break

Lat Long: 47.85° N 4.35° W

Tronoen Surf Forecast and Surf Report

Issued: 7 am 07 Sep 2026 (local time)

Forecast update in  hr  min

Today's Tronoen sea temperature is
18.8°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 7 Sep 2026:

  • Best quality surf: Tuesday 8 Sep, 5PM (local time) - 10ft (3.0m), 9s period, WNW swell with cross-shore winds.
  • Most powerful swell: Tuesday 8 Sep, 5PM (local time) - 10ft (3.0m), 9s period, WNW swell with 1,373 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 8 Sep, 5PM (local time) - 10ft (3.0m), 9s period with WNW swell.

Best Forecast Surf Conditions for Tronoen this week:

The surf forecast for Tronoen over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 08) at 5PM. The primary swell is predicted to be 3.0m and 9s period. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Tronoen in the next 16 days are 3.0m 9s and forecast to arrive on Tuesday (Sep 08) at 5PM. 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+) 5PM (Tue 8th Sep)10ft (3.0m) 9s
Best Surf 5PM (Tue 8th Sep)10ft (3.0m) 9s
Most Powerful 5PM (Tue 8th Sep)10ft (3.0m) 9s

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


The Lowdown

Alright folks, Rusty here. Let’s get stuck into the outlook for Tronoen. We’ve got a bit of a slow start, but there’s some real promise if you’re patient.

The first part of the window is a write-off, to be honest. Monday the 7th and Tuesday the 8th are a mess. You’ve got a big, powerful swell hitting on Monday with combined energy of 1256, but it’s straight onshore and the message is clear: marginal at best. Tuesday the 8th is even worse, with gale-force cross-shore winds and a 10ft wall of chop. That’s a no-go unless you’re a masochist.

We get a bit of a lull from Wednesday the 9th right through to Friday the 11th. The swell drops away, but the wind is still all wrong – cross-on and bumpy. The energy is down in the low hundreds, barely a ripple. Nothing to get excited about.

Now, here’s the first real standout. Saturday the 12th morning. The stars almost align. The swell is a modest 2ft from the WNW, but the period is a very long 16 seconds – that’s proper groundswell energy. The wind is glassy, flat calm, which is a major positive here. The combined energy is 423, which is moderate. It’s not going to be huge, but for a clean, glassy morning on a long-period swell, Tronoen could be a gem. The swell direction is a perfect match for the break’s optimum from the WSW. This is the best early call, but it’s a morning-only window.

The rest of that weekend and into the next week is a mix of average conditions. We get a few pulses of 5ft to 6ft swell, but the wind is mostly cross-on or onshore, keeping things choppy. The energy spikes up to 1397 on Saturday afternoon, but the wind ruins it.

The next real highlight is a couple of weeks out. Wednesday the 16th morning is looking very promising. The swell is 6ft from the WNW, with a period of 12 seconds – good, solid groundswell. The wind is a light, clean cross-offshore from the NE, so the waves should be clean and lined up. The combined energy is 805, which is solid. This is a strong, well-shaped swell with decent power and good wind. It’s still a bit far out to lock in, but it’s a definite one to watch.

Then, the absolute best of the whole forecast. Sunday the 20th afternoon. The swell is 6ft from the WNW, period of 12 seconds, and the wind is dead calm – glassy. The combined energy is 733. The wind is zero, so the surface will be like a mirror. The swell direction is right on the money. This is the standout session of the entire 16 days. It’s two weeks away, so treat it as a promising long-range target, but if it holds, Sunday the 20th afternoon will be the day to be in the water. The water temperature is 66°, which is a touch warmer than usual for this time of year.

The following Monday and Tuesday (21st and 22nd) taper off with a dropping swell and cleaner but smaller conditions. The energy drops to 164 and 133, so it’s back to the small stuff.

Alright, that’s the story. The pick of the bunch is that glassy Sunday afternoon on the 20th, with the clean Wednesday morning on the 16th as a solid backup. Keep your eyes on the forecast.

Rusty.

Short Range Forecast

Light rain (total 4mm), mostly falling on Tue morning. Very mild (max 19°C on Mon morning, min 15°C on Wed night). Winds decreasing (gales from the NW on Tue morning, calm by Wed night).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 18°C on Fri afternoon, min 14°C on Sat morning). Wind will be generally light.

Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
0
0
!
1
2
0
2
0
0
0
1
0
1
2
1
1
1
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.9
W
13
2
W
13
1.7
W
12
3
W
8
3
WNW
9
2.2
WNW
9
1.7
WNW
9
1.6
NW
10
1.2
NW
10
0.9
NW
9
0.7
NW
8
0.6
WNW
8
1.3
WNW
9
1.2
W
8
0.9
W
8
0.7
WNW
16
1.7
WNW
14
1.6
WNW
13
1.7
WNW
13
1.6
WNW
12
1.4
WNW
10
Wave Graph
Metric surfscale
Energy kJ
1256
1285
763
916
1373
744
460
480
264
115
70
43
258
191
92
259
1075
905
953
701
396
Wind (km/h)
15
WSW
15
WNW
15
SW
65
NW
35
NW
15
NNW
15
NNW
20
WNW
5
NE
10
SSE
10
SW
5
SSW
10
WNW
15
WNW
15
N
5
NNW
15
WNW
10
NW
15
W
15
WNW
10
WNW
Wind State
on
cross-on
cross-on
cross
cross
cross
cross
cross-on
cross-off
cross
cross-on
cross-on
cross-on
cross-on
cross-off
glassy
cross-on
cross-on
on
cross-on
cross-on
High Tide
2:37PM3.42m
3:17AM3.40m
3:38PM3.79m
4:09AM3.71m
4:26PM4.12m
4:52AM3.97m
5:07PM4.35m
5:30AM4.15m
5:45PM4.46m
6:05AM4.23m
6:20PM4.44m
6:38AM4.21m
6:53PM4.30m
Low Tide
8:06AM1.13m
8:51PM0.82m
9:12AM0.81m
9:48PM0.47m
10:04AM0.47m
10:34PM0.17m
10:48AM0.19m
11:15PM-0.04m
11:28AM0.01m
11:53PM-0.12m
12:05PM-0.06m
00:29AM-0.08m
12:42PM-0.00m
1:03AM0.07m
part cloud
part cloud
part cloud
rain showers
part cloud
clear
clear
part cloud
part cloud
cloud
part cloud
part cloud
cloud
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:41
7:43
7:45
7:46
7:48
7:48
7:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:46
8:45
8:43
8:40
8:38
8:37
8:35
 mm
4
Temp °C
19
19
18
18
17
17
16
17
16
16
17
17
17
18
18
15
17
17
19
19
19
Feels °C
19
18
14
11
10
12
13
13
12
14
16
16
17
17
17
15
16
16
17
17
20
  • 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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