Surf Forecasts:
Tronoen surf forecast from 15 Sep 2026:
- Best quality surf: Sunday 20 Sep, 5AM (local time) - 5.5ft (1.7m), 10s period, WNW swell with cross-offshore winds.
- Most powerful swell: Friday 18 Sep, 8AM (local time) - 8ft (2.5m), 17s period, WNW swell with 3,653 kJ wave energy.
- Next surfable swell (1★+): Sunday 20 Sep, 5AM (local time) - 5.5ft (1.7m), 10s 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 Sunday (Sep 20) at 5AM. The primary swell is predicted to be 1.7m and 10s period. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Tronoen in the next 16 days are 2.5m 17s and forecast to arrive on Friday (Sep 18) at 8AM. 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 4s period and expected on Monday (Sep 21) at 2PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sun 20th Sep) | 5.5ft (1.7m) 10s |
| Best Surf | 5AM (Sun 20th Sep) | 5.5ft (1.7m) 10s |
| Most Powerful | 8AM (Fri 18th Sep) | 8ft (2.5m) 17s |
Table - best surf conditions forecast for Tronoen over the next 16 days.
The Lowdown
Alright, let's get into what’s happening at Tronoen.
Water temp is running about 65°F, which is a touch warmer than usual for this time of year – feels good.
We’re starting off real slow. Monday afternoon sees only 3ft of swell from the west with weak energy (190) and the wind blowing onshore from the WSW – it’s messy. Nothing to get excited about. Tuesday and Wednesday stay average – cross and cross-on winds, some size but choppy and lumpy. It’s a few days of nothing worth recommending until Friday the 18th.
Friday the 18th morning is the standout. We’ve got 8ft of WNW swell with a super long 16-second period – that’s pure groundswell, packing massive energy (3594 in the combined reading). Wind is light from the NW, just cross, with only tiny ripples on the surface. This is the best of the run, but at 8ft it’s strictly for experts. The long period gives real power and shape, but at a beach it can close out. For the crew that can handle it, this is the one.
After that, it settles. Saturday the 19th offers 5-6ft with moderate energy, but it’s cross-on and cloudy, only marginal. Sunday the 20th morning sees 5ft with a clean offshore breeze from the ENE – rideable for intermediates.
Into the second week – from the 22nd onward – the swell drops. Tuesday the 22nd morning has 3ft with a clean offshore from the east and an 11-second period, nice and fun. The real late surprise is Tuesday the 29th afternoon – a 3ft west swell, very long 15-second period, clean and light offshore wind, energy at 593. Late in the run, so keep an eye on it – promising but not locked in.
Crowds are only sometimes an issue, so you should get some space, especially early.
Rusty out.
Short Range ForecastSome drizzle, heaviest during Thu afternoon. Very mild (max 18°C on Tue morning, min 15°C on Wed morning). Winds decreasing (fresh winds from the NW on Tue afternoon, light winds from the WNW by Wed night). | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Sun afternoon, min 16°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
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) | W 8 | WNW 10 | WNW 8 | WNW 10 | WNW 10 | WNW 11 | WNW 10 | WNW 10 | WNW 9 | WNW 16 | WNW 14 | WNW 13 | WNW 12 | WNW 12 | WNW 11 | WNW 10 | WNW 10 | WNW 11 | WNW 12 | WNW 12 | WNW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 66 | 567 | 468 | 869 | 902 | 745 | 540 | 631 | 833 | 3514 | 2487 | 1286 | 970 | 757 | 604 | 473 | 512 | 777 | 688 | 589 | 454 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | cross | cross | cross-on | on | cross-on | cross | cross | cross-on | on | on | on | cross | glassy | cross-on | off | off | on | off |
High Tide | 7:56PM3.78m | 8:10AM3.67m | 8:28PM3.46m | 8:43AM3.39m | 9:03PM3.13m | 9:22AM3.10m | 9:50PM2.81m | 10:20AM2.82m | 11:13PM2.57m | 12:20PM2.68m | 1:45AM2.60m | 2:16PM2.86m | 2:54AM2.85m | ||||||||
Low Tide | 1:54PM0.42m | 2:11AM0.62m | 2:31PM0.73m | 2:47AM0.96m | 3:12PM1.07m | 3:29AM1.29m | 4:06PM1.40m | 4:30AM1.58m | 5:27PM1.62m | 6:04AM1.71m | 7:08PM1.62m | 7:38AM1.60m | 8:24PM1.40m | ||||||||
 |  |  | | |  |  |  | | | | | | | | | | | | | | |
 | 7:52 | — | — | 7:54 | — | — | 7:56 | — | — | 7:56 | — | — | 7:58 | — | — | 8:00 | — | — | 8:00 | — | — |
 | — | 8:30 | — | — | 8:28 | — | — | 8:25 | — | — | 8:23 | — | — | 8:22 | — | — | 8:20 | — | — | 8:17 | — |
mm | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 18 | 17 | 16 | 17 | 16 | 17 | 17 | 16 | 16 | 17 | 16 | 17 | 18 | 18 | 16 | 20 | 20 | 19 | 23 | 23 |
Feels °C | 17 | 14 | 13 | 12 | 12 | 11 | 13 | 13 | 12 | 13 | 14 | 13 | 16 | 17 | 18 | 17 | 18 | 18 | 17 | 23 | 21 |
Swell 1 Height (m) Direction Period (s) | W 11 | — | WNW 8 | WNW 10 | WNW 12 | WNW 11 | WNW 10 | — | WNW 9 | WNW 16 | WNW 14 | WNW 13 | WNW 12 | WNW 12 | WNW 11 | WNW 10 | WNW 10 | WNW 11 | WNW 12 | WNW 12 | WNW 12 |
| kJ | 63 | — | 318 | 869 | 198 | 745 | 540 | — | 833 | 3514 | 2487 | 1286 | 970 | 757 | 604 | 473 | 512 | 777 | 688 | 589 | 454 |
Swell 2 Height (m) Direction Period (s) | NW 9 | — | — | WNW 13 | WNW 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SE 4 |
| kJ | 20 | — | — | 35 | 233 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 |
Swell 3 Height (m) Direction Period (s) | NW 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | W 8 | WNW 10 | WNW 8 | — | WNW 10 | — | WNW 10 | WNW 10 | — | — | — | — | — | — | — | — | — | — | ESE 4 | SE 4 | ESE 4 |
| kJ | 66 | 567 | 468 | — | 902 | — | 394 | 631 | — | — | — | — | — | — | — | — | — | — | 7 | 7 | 4 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 2 | 8 | 9 | 62 | 9 | 9 | 62 | 2 | 107 | 303 | 9 | 9 | 24 | 2 | 2 | 2 | 0 | 0 | 2 | 0 | 1 |
Best forecast wave conditions in Finistere - Brittany | |||||||||||||||||||||
Best forecast wave conditions in France | |||||||||||||||||||||
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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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