Photo: Own Herby talk thyme · CC BY-SA 4.0Châteauneuf-du-Faou is among the wettest of mainland French towns: 1,423 mm of rain a year
On a normal July day the thermometer tops out near 21.8°C. A year here swings 19°C from midwinter lows to midsummer highs. Its July afternoons are the coolest among its 6 nearest neighbors. Plan time outside from May to September, when highs sit at 17–22°C.
Figures from Météo-France’s Coray Chat Eau station, 14 km south.
A year in Châteauneuf-du-Faou at a glance
Each month’s typical high and low in °C, at the Coray Chat Eau station.
What a year in Châteauneuf-du-Faou feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Coray Chat Eau.
About 1,423 mm of rain a year
December is the wettest month and June the driest. About 48 days a year bring 10 mm or more. The wettest of 91 towns of 2,500+ in Finistère.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Quimper
23 frosts and 21 days of 25°C a year
On about 23 nights a year the air drops to 0°C or below, and on about under 1 days it stays below freezing all day. About 21 days a year reach 25°C, and 2 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Coray Chat Eau: 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 Coray Chat Eau
Coray Chat Eau is 14 km south of Châteauneuf-du-Faou. Every figure on this page is the station’s, not a measurement in Châteauneuf-du-Faou itself.
| Station (Météo-France number) | Coray Chat Eau (29041002) |
| Distance from the town | 14 km south |
| Station altitude | 242 m |
| Town altitude (its center) | 133 m |
| Period | 1991–2020 |
| Sunshine measured at | Quimper, 35 km away |
Châteauneuf-du-Faou sits 109 m lower than the station. Air usually warms by about 0.65°C every 100 m you go down, so expect Châteauneuf-du-Faou to run about 0.7°C warmer than these figures.
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 Châteauneuf-du-Faou 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, each with its own matched station.
| Town | Station | July high | January low | Rain a year |
|---|---|---|---|---|
| Châteauneuf-du-Faou | Coray Chat Eau | 21.8°C | 3.3°C | 1,423 mm |
| Pleyben 12 km | Saint-Ségal S A | 22.5°C 0.7°C warmer | 3.9°C 0.6°C milder | 1,126 mm |
| Gourin 17 km | Guiscriff | 22.9°C 1.1°C warmer | 3.3°C about the same | 1,366 mm |
| Briec 17 km | Saint-Ségal S A | 22.5°C 0.7°C warmer | 3.9°C 0.6°C milder | 1,126 mm |
| Châteaulin 20 km | Saint-Ségal S A | 22.5°C 0.7°C warmer | 3.9°C 0.6°C milder | 1,126 mm |
| Scaër 20 km | Guiscriff | 22.9°C 1.1°C warmer | 3.3°C about the same | 1,366 mm |
| Carhaix-Plouguer 21 km | Carhaix | 22.9°C 1.1°C warmer | 3.2°C about the same | 1,112 mm |
Châteauneuf-du-Faou weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Coray Chat Eau station; sunshine at Quimper.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 8.6°C | 3.3°C | 6.0°C | 172 mm | 66 |
| February | 9.3°C | 2.9°C | 6.1°C | 137 mm | 90 |
| March | 11.7°C | 4.3°C | 8.0°C | 98 mm | 133 |
| April | 14.3°C | 5.5°C | 9.9°C | 99 mm | 177 |
| May | 17.4°C | 8.4°C | 12.9°C | 86 mm | 201 |
| June | 20.1°C | 11.0°C | 15.5°C | 72 mm | 209 |
| July | 21.8°C | 12.7°C | 17.3°C | 79 mm | 205 |
| August | 21.8°C | 12.8°C | 17.3°C | 84 mm | 195 |
| September | 19.6°C | 11.0°C | 15.3°C | 94 mm | 175 |
| October | 15.6°C | 8.9°C | 12.2°C | 148 mm | 112 |
| November | 11.8°C | 5.9°C | 8.8°C | 169 mm | 79 |
| December | 9.3°C | 3.9°C | 6.6°C | 185 mm | 67 |
| Year | 15.1°C | 7.6°C | 11.3°C | 1,423 mm | 1,708 |
Where Châteauneuf-du-Faou’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Coray Chat Eau, 14 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, Quimper, 35 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 Châteauneuf-du-Faou’s climate
How warm does Châteauneuf-du-Faou get in summer?
July is the warmest month, with average highs of 21.8°C. About 21 days a year reach 25°C, fewer than 95% of mainland French towns, and about 2 reach 30°C.
How cold does Châteauneuf-du-Faou get in winter?
February nights average 2.9°C. The air drops to 0°C or below on about 23 nights a year, and about under 1 days a year stay below freezing all day.
How much rain does Châteauneuf-du-Faou get?
About 1,423 mm a year, more than 98% of mainland French towns. December is the wettest month (185 mm) and June the driest (72 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Quimper (35 km away), averages 1,708 hours of sunshine a year.
Are these figures for Châteauneuf-du-Faou itself?
No: they are the normals of the Météo-France station matched to Châteauneuf-du-Faou, Coray Chat Eau, 14 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 CORAY CHAT EAU, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Châteauneuf-du-Faou →
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.