Châteauneuf gets more frosts than 93% of mainland French towns
High summer brings afternoon highs near 27.1°C. Its July heat outdoes that of 69% of mainland French towns. Temperatures cover 27°C across the year, low to high. The outdoor season, with highs of 21–25°C, runs through May, June and September.
These are the figures of Météo-France’s Charlieu station, 8.3 km south-west.
A year in Châteauneuf at a glance
Each month’s typical high and low in °C, at the Charlieu station.
What a year in Châteauneuf feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Charlieu.
About 769 mm of rain a year
May is the wettest month and February the driest. About 22 days a year bring 10 mm or more. 28th wettest of 32 towns of 2,500+ in Saône-et-Loire.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Saint-Yan
A frosty town: 75 frosts and 75 days of 25°C a year
On about 75 nights a year the air drops to 0°C or below, and on about 5 days it stays below freezing all day. About 75 days a year reach 25°C, and 26 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Charlieu: 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 Charlieu
Charlieu is 8.3 km south-west of Châteauneuf. Every figure on this page is the station’s, not a measurement in Châteauneuf itself.
| Station (Météo-France number) | Charlieu (42052002) |
| Distance from the town | 8.3 km south-west |
| Station altitude | 278 m |
| Town altitude (its center) | 306 m |
| Period | 1993–2020 (the station’s own record) |
| Sunshine measured at | Saint-Yan, 28 km away |
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 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 Saône-et-Loire.
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 |
|---|---|---|---|---|
| Châteauneuf | Charlieu | 27.1°C | −0.1°C | 769 mm |
| Chauffailles 6.3 km | Briant | 26.0°C 1.1°C cooler | 0.6°C 0.7°C milder | 931 mm |
| Charlieu 8.7 km | same station | 27.1°C about the same | −0.1°C about the same | 769 mm |
| Pouilly-sous-Charlieu 14 km | same station | 27.1°C about the same | −0.1°C about the same | 769 mm |
| Cours 14 km | Machézal | 25.4°C 1.7°C cooler | 0.5°C 0.6°C milder | 820 mm |
| Thizy-les-Bourgs 20 km | Fourneaux | 27.1°C about the same | 0.1°C about the same | 900 mm |
| Mably 21 km | Riorges - Man | 27.6°C 0.5°C warmer | 0.5°C 0.6°C milder | 711 mm |
Châteauneuf weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Charlieu station; sunshine at Saint-Yan.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 7.7°C | −0.1°C | 3.8°C | 56 mm | 65 |
| February | 9.3°C | −0.2°C | 4.5°C | 44 mm | 89 |
| March | 13.5°C | 1.5°C | 7.5°C | 46 mm | 147 |
| April | 17.0°C | 4.0°C | 10.5°C | 58 mm | 168 |
| May | 21.0°C | 8.1°C | 14.5°C | 83 mm | 198 |
| June | 25.1°C | 11.5°C | 18.3°C | 67 mm | 227 |
| July | 27.1°C | 13.2°C | 20.2°C | 71 mm | 248 |
| August | 27.1°C | 12.7°C | 19.9°C | 74 mm | 230 |
| September | 22.5°C | 9.2°C | 15.8°C | 63 mm | 167 |
| October | 17.9°C | 7.0°C | 12.5°C | 74 mm | 112 |
| November | 11.7°C | 2.7°C | 7.2°C | 76 mm | 66 |
| December | 8.3°C | 0.5°C | 4.4°C | 59 mm | 52 |
| Year | 17.4°C | 5.8°C | 11.6°C | 769 mm | 1,768 |
Where Châteauneuf’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Charlieu, 8.3 km away: statistics for 1991–2020 (the station’s own years, 1993–2020, where its record is shorter).
- 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, Saint-Yan, 28 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 Saône-et-Loire.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Châteauneuf’s climate
How warm does Châteauneuf get in summer?
July is the warmest month, with average highs of 27.1°C. About 75 days a year reach 25°C, more than 67% of mainland French towns, and about 26 reach 30°C.
How cold does Châteauneuf get in winter?
February nights average −0.2°C. The air drops to 0°C or below on about 75 nights a year, and about 5 days a year stay below freezing all day.
How much rain does Châteauneuf get?
About 769 mm a year, more than 53% of mainland French towns. May is the wettest month (83 mm) and February the driest (44 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Saint-Yan (28 km away), averages 1,768 hours of sunshine a year.
Are these figures for Châteauneuf itself?
No: they are the normals of the Météo-France station matched to Châteauneuf, Charlieu, 8.3 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 CHARLIEU, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Châteauneuf →
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.