Few mainland French towns have cooler summers than Trébabu
The coldest hours of a January night bottom out at 5.2°C on average. Its January nights stay gentler than in 98% of mainland French towns. November is the wettest month, June the driest. Picnics, hikes and garden evenings come into their own from June to September, with highs of 19–21°C.
Figures from Météo-France’s Lanvéoc station, 24 km south-east.
A year in Trébabu at a glance
Each month’s typical high and low in °C, at the Lanvéoc station.
What a year in Trébabu feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Lanvéoc.
About 1,030 mm of rain a year
November is the wettest month and June the driest. About 32 days a year bring 10 mm or more. 68th wettest of 91 towns of 2,500+ in Finistère.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Lanvéoc
9 frosts and 12 days of 25°C a year
On about 9 nights a year the air drops to 0°C or below; days that stay below freezing are rare. About 12 days a year reach 25°C, and under 1 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Lanvéoc: a frost is a night of 0°C or below, a summer day (jour d’été) 25°C or more, a hot day (forte chaleur) 30°C or more.
The Météo-France station at Lanvéoc
Lanvéoc is 24 km south-east of Trébabu. Every figure on this page is the station’s, not a measurement in Trébabu itself.
| Station (Météo-France number) | Lanvéoc (29120001) |
| Distance from the town | 24 km south-east |
| Station altitude | 81 m |
| Town altitude (its center) | 33 m |
| Period | 1991–2020 |
| Nearest station of any kind | 21 km |
| Sunshine measured at | the same station |
TownRatings matches each commune to one station with at least 24 years of temperature and rain records: the nearest, counting every 100 m of height difference as 10 km, never across the sea.
How Trébabu compares
Against the 4,385 towns of 2,500 or more in mainland France, each read from its own matched station. The dots are the other towns of 2,500+ in Finistère.
Nearby towns’ climate
The nearest towns of 2,500+ within 29 km. Where a neighbor uses the same station its figures are the same: the differences you’d feel over a few kilometers aren’t in the normals.
| Town | Station | July high | January low | Rain a year |
|---|---|---|---|---|
| Trébabu | Lanvéoc | 20.9°C | 5.2°C | 1,030 mm |
| Le Conquet 2 km | Ouessant-Stiff | 19.3°C 1.6°C cooler | 6.8°C 1.6°C milder | 813 mm |
| Plougonvelin 2.9 km | same station | 20.9°C about the same | 5.2°C about the same | 1,030 mm |
| Locmaria-Plouzané 6.4 km | same station | 20.9°C about the same | 5.2°C about the same | 1,030 mm |
| Plouarzel 8.1 km | Ouessant-Stiff | 19.3°C 1.6°C cooler | 6.8°C 1.6°C milder | 813 mm |
| Plouzané 11 km | same station | 20.9°C about the same | 5.2°C about the same | 1,030 mm |
| Saint-Renan 11 km | Brest-Guipavas | 20.8°C about the same | 4.6°C 0.6°C colder | 1,230 mm |
Trébabu weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Lanvéoc station.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 9.8°C | 5.2°C | 7.5°C | 118 mm | 61 |
| February | 10.1°C | 4.8°C | 7.5°C | 98 mm | 81 |
| March | 12.0°C | 5.9°C | 9.0°C | 72 mm | 124 |
| April | 14.1°C | 7.1°C | 10.6°C | 75 mm | 164 |
| May | 16.8°C | 9.7°C | 13.2°C | 61 mm | 192 |
| June | 19.2°C | 12.1°C | 15.7°C | 56 mm | 208 |
| July | 20.9°C | 13.8°C | 17.4°C | 57 mm | 194 |
| August | 21.0°C | 14.0°C | 17.5°C | 62 mm | 190 |
| September | 19.5°C | 12.5°C | 16.0°C | 70 mm | 175 |
| October | 16.1°C | 10.5°C | 13.3°C | 108 mm | 112 |
| November | 12.7°C | 7.9°C | 10.3°C | 127 mm | 71 |
| December | 10.5°C | 5.9°C | 8.2°C | 127 mm | 65 |
| Year | 15.2°C | 9.1°C | 12.2°C | 1,030 mm | 1,636 |
Where Trébabu’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Lanvéoc, 24 km away: statistics for 1991–2020.
- Which station: among stations with at least 24 of the 30 years of temperature and rain, the nearest to the commune’s population-weighted center, counting each 100 m of height difference as 10 km; mainland towns use mainland stations and each overseas département its own.
- Altitudes: the town’s from IGN’s RGE ALTI® at its population-weighted center; the station’s from Météo-France.
- Sunshine: the nearest station with at least 10 years of sunshine records, Lanvéoc, 24 km away.
- Comparisons: every town of 2,500 or more in mainland France, read the same way; the dots are the towns of 2,500+ in Finistère.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Trébabu’s climate
How warm does Trébabu get in summer?
August is the warmest month, with average highs of 21.0°C. About 12 days a year reach 25°C, fewer than 98% of mainland French towns, and about under 1 reach 30°C.
How cold does Trébabu get in winter?
February nights average 4.8°C. The air drops to 0°C or below on about 9 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Trébabu get?
About 1,030 mm a year, more than 88% of mainland French towns. November is the wettest month (127 mm) and June the driest (56 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Lanvéoc (24 km away), averages 1,636 hours of sunshine a year.
Are these figures for Trébabu itself?
No: they are the normals of the Météo-France station matched to Trébabu, Lanvéoc, 24 km away. France publishes its climate normals by station, not by commune; a valley, a hill or the sea can make a difference over a few kilometers.
Where do these figures come from?
Météo-France’s fiches climatologiques: 30-year averages (1991–2020) for each of its long-running stations, published as open data since 2024. They are normals, not a forecast.
Source: Météo-France, fiches climatologiques, 1991–2020 statistics (station LANVEOC, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Trébabu →
Contains public sector information under the Licence Ouverte / Open Licence 2.0 (Etalab): INSEE, DGFiP, the Interior Ministry’s statistics service (SSMSI), the Ministry of Education (DEPP), the Health Ministry’s statistics service (DREES) and the Housing Ministry (Carte des loyers). Commune boundaries: IGN Admin Express.