Photo: Anthony Levrot · CC BY-SA 4.0Challes-les-Eaux sits near the bottom of mainland French towns for winter warmth
Peak summer warmth arrives in July, with afternoons near 28.1°C. Seasons differ by 30°C, from the coldest nights to the warmest afternoons. It is a wet place: more rain falls here than on 94% of mainland French towns. Windscreens need scraping on about 80 mornings a year, the nights the air drops below 0°C.
Figures from Météo-France’s Challes-les-Eaux station, 2.2 km north-west.
A year in Challes-les-Eaux at a glance
Each month’s typical high and low in °C, at the Challes-les-Eaux station.
What a year in Challes-les-Eaux feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Challes-les-Eaux.
About 1,148 mm of rain a year
December is the wettest month and February the driest. About 42 days a year bring 10 mm or more. 15th wettest of 37 towns of 2,500+ in Savoie.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Chambery-Aix
A frosty town: 80 frosts and 86 days of 25°C a year
On about 80 nights a year the air drops to 0°C or below, and on about 4 days it stays below freezing all day. About 86 days a year reach 25°C, and 30 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Challes-les-Eaux: 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 Challes-les-Eaux
Challes-les-Eaux is 2.2 km north-west of Challes-les-Eaux. Every figure on this page is the station’s, not a measurement in Challes-les-Eaux itself.
| Station (Météo-France number) | Challes-les-Eaux (73064001) |
| Distance from the town | 2.2 km north-west |
| Station altitude | 298 m |
| Town altitude (its center) | 301 m |
| Period | 1991–2020 |
| Sunshine measured at | Chambery-Aix, 13 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 Challes-les-Eaux 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 Savoie.
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 |
|---|---|---|---|---|
| Challes-les-Eaux | Challes-les-Eaux | 28.1°C | −1.8°C | 1,148 mm |
| La Ravoire 2.3 km | same station | 28.1°C about the same | −1.8°C about the same | 1,148 mm |
| Barby 2.6 km | same station | 28.1°C about the same | −1.8°C about the same | 1,148 mm |
| Saint-Baldoph 3 km | same station | 28.1°C about the same | −1.8°C about the same | 1,148 mm |
| Barberaz 3.5 km | same station | 28.1°C about the same | −1.8°C about the same | 1,148 mm |
| Saint-Alban-Leysse 4 km | same station | 28.1°C about the same | −1.8°C about the same | 1,148 mm |
| Bassens 4.7 km | same station | 28.1°C about the same | −1.8°C about the same | 1,148 mm |
Challes-les-Eaux weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Challes-les-Eaux station; sunshine at Chambery-Aix.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 6.4°C | −1.8°C | 2.3°C | 95 mm | 77 |
| February | 8.7°C | −1.5°C | 3.6°C | 74 mm | 102 |
| March | 13.9°C | 1.7°C | 7.8°C | 87 mm | 158 |
| April | 17.7°C | 5.1°C | 11.4°C | 83 mm | 176 |
| May | 21.7°C | 9.5°C | 15.6°C | 100 mm | 202 |
| June | 25.6°C | 13.2°C | 19.4°C | 97 mm | 236 |
| July | 28.1°C | 15.0°C | 21.5°C | 93 mm | 262 |
| August | 27.7°C | 14.6°C | 21.1°C | 100 mm | 237 |
| September | 22.8°C | 11.0°C | 16.9°C | 97 mm | 181 |
| October | 17.4°C | 7.2°C | 12.3°C | 101 mm | 124 |
| November | 10.8°C | 2.3°C | 6.5°C | 108 mm | 75 |
| December | 6.8°C | −1.0°C | 2.9°C | 112 mm | 66 |
| Year | 17.3°C | 6.3°C | 11.8°C | 1,148 mm | 1,895 |
Where Challes-les-Eaux’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Challes-les-Eaux, 2.2 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, Chambery-Aix, 13 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 Savoie.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Challes-les-Eaux’s climate
How warm does Challes-les-Eaux get in summer?
July is the warmest month, with average highs of 28.1°C. About 86 days a year reach 25°C, more than 77% of mainland French towns, and about 30 reach 30°C.
How cold does Challes-les-Eaux get in winter?
January nights average −1.8°C. The air drops to 0°C or below on about 80 nights a year, and about 4 days a year stay below freezing all day.
How much rain does Challes-les-Eaux get?
About 1,148 mm a year, more than 94% of mainland French towns. December is the wettest month (112 mm) and February the driest (74 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Chambery-Aix (13 km away), averages 1,895 hours of sunshine a year.
Are these figures for Challes-les-Eaux itself?
No: they are the normals of the Météo-France station matched to Challes-les-Eaux, Challes-les-Eaux, 2.2 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 CHALLES LES EAUX, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Challes-les-Eaux →
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.