Chambon-sur-Lac sits near the top of mainland French towns for rain, with 1,783 mm a year
January nights here settle around −2.2°C. Temperatures cover 24°C across the year, low to high. Frosty nights outnumber those of almost every mainland French town. Long walks are most pleasant from June to August, when afternoons reach 20–22°C.
These are the figures of Météo-France’s Le Mont-Dore Bg station, 7.2 km west.
A year in Chambon-sur-Lac at a glance
Each month’s typical high and low in °C, at the Le Mont-Dore Bg station.
What a year in Chambon-sur-Lac feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Le Mont-Dore Bg.
About 1,783 mm of rain a year
December is the wettest month and August the driest. About 62 days a year bring 10 mm or more. The wettest of 44 towns of 2,500+ in Puy-de-Dôme.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Chastreix
A frosty town: 103 frosts and 28 days of 25°C a year
On about 103 nights a year the air drops to 0°C or below, and on about 16 days it stays below freezing all day. About 28 days a year reach 25°C, and 4 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Le Mont-Dore Bg: 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 Le Mont-Dore Bg
Le Mont-Dore Bg is 7.2 km west of Chambon-sur-Lac. Every figure on this page is the station’s, not a measurement in Chambon-sur-Lac itself.
| Station (Météo-France number) | Le Mont-Dore Bg (63236002) |
| Distance from the town | 7.2 km west |
| Station altitude | 1,050 m |
| Town altitude (its center) | 887 m |
| Period | 1991–2020 |
| Sunshine measured at | Chastreix, 11 km away |
Chambon-sur-Lac sits 163 m lower than the station. Air usually warms by about 0.65°C every 100 m you go down, so expect Chambon-sur-Lac to run about 1.1°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 Chambon-sur-Lac 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 Puy-de-Dôme.
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 |
|---|---|---|---|---|
| Chambon-sur-Lac | Le Mont-Dore Bg | 21.9°C | −2.2°C | 1,783 mm |
| Aydat 13 km | Gelles | 23.6°C 1.7°C warmer | −1.2°C 1°C milder | 1,026 mm |
| Saint-Genès-Champanelle 19 km | Fontaine-du-Ber | 21.5°C about the same | −2.1°C about the same | 1,024 mm |
| Ceyrat 23 km | Sayat | 25.4°C 3.5°C warmer | 0.0°C 2.2°C milder | 776 mm |
| La Roche-Blanche 23 km | Plauzat | 25.9°C 4°C warmer | 0.2°C 2.4°C milder | 607 mm |
| Romagnat 24 km | Plauzat | 25.9°C 4°C warmer | 0.2°C 2.4°C milder | 607 mm |
| Veyre-Monton 24 km | Plauzat | 25.9°C 4°C warmer | 0.2°C 2.4°C milder | 607 mm |
Chambon-sur-Lac weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Le Mont-Dore Bg station; sunshine at Chastreix.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 4.7°C | −2.2°C | 1.2°C | 161 mm | 98 |
| February | 5.3°C | −2.5°C | 1.4°C | 146 mm | 118 |
| March | 8.7°C | −0.1°C | 4.3°C | 140 mm | 153 |
| April | 11.6°C | 2.2°C | 6.9°C | 154 mm | 167 |
| May | 15.8°C | 5.5°C | 10.6°C | 153 mm | 171 |
| June | 19.6°C | 8.6°C | 14.1°C | 125 mm | 196 |
| July | 21.9°C | 10.2°C | 16.1°C | 119 mm | 229 |
| August | 21.9°C | 10.1°C | 16.0°C | 111 mm | 212 |
| September | 17.7°C | 7.0°C | 12.3°C | 132 mm | 177 |
| October | 13.6°C | 4.6°C | 9.1°C | 152 mm | 138 |
| November | 8.0°C | 0.9°C | 4.4°C | 196 mm | 87 |
| December | 5.2°C | −1.3°C | 2.0°C | 196 mm | 92 |
| Year | 12.8°C | 3.6°C | 8.2°C | 1,783 mm | 1,837 |
Where Chambon-sur-Lac’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Le Mont-Dore Bg, 7.2 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, Chastreix, 11 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 Puy-de-Dôme.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Chambon-sur-Lac’s climate
How warm does Chambon-sur-Lac get in summer?
July is the warmest month, with average highs of 21.9°C. About 28 days a year reach 25°C, fewer than 92% of mainland French towns, and about 4 reach 30°C.
How cold does Chambon-sur-Lac get in winter?
February nights average −2.5°C. The air drops to 0°C or below on about 103 nights a year, and about 16 days a year stay below freezing all day.
How much rain does Chambon-sur-Lac get?
About 1,783 mm a year, more than almost every mainland French town. December is the wettest month (196 mm) and August the driest (111 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Chastreix (11 km away), averages 1,837 hours of sunshine a year.
Are these figures for Chambon-sur-Lac itself?
No: they are the normals of the Météo-France station matched to Chambon-sur-Lac, Le Mont-Dore Bg, 7.2 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 LE MONT-DORE BG, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Chambon-sur-Lac →
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.