Afternoon heat in Biollet trails that of 91% of mainland French towns
The coldest hours of a January night bottom out at −0.5°C on average. Frost is common: about 69 nights a year drop below freezing, more than in 91% of mainland French towns. Expect the heaviest rain in May and the lightest in February. Picnics, hikes and garden evenings come into their own from June to September, with highs of 19–23°C.
Figures from Météo-France’s Saint-Gervais-d au station, 9.9 km north-east.
A year in Biollet at a glance
Each month’s typical high and low in °C, at the Saint-Gervais-d au station.
What a year in Biollet feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Saint-Gervais-d au.
About 826 mm of rain a year
May is the wettest month and February the driest. About 23 days a year bring 10 mm or more. 6th wettest of 44 towns of 2,500+ in Puy-de-Dôme.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Clermont-Fd
A frosty town: 69 frosts and 36 days of 25°C a year
On about 69 nights a year the air drops to 0°C or below, and on about 15 days it stays below freezing all day. About 36 days a year reach 25°C, and 8 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Saint-Gervais-d au: 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 Saint-Gervais-d au
Saint-Gervais-d au is 9.9 km north-east of Biollet. Every figure on this page is the station’s, not a measurement in Biollet itself.
| Station (Météo-France number) | Saint-Gervais-d au (63354004) |
| Distance from the town | 9.9 km north-east |
| Station altitude | 705 m |
| Town altitude (its center) | 709 m |
| Period | 1991–2020 |
| Sunshine measured at | Clermont-Fd, 42 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 Biollet 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 |
|---|---|---|---|---|
| Biollet | Saint-Gervais-d au | 23.3°C | −0.5°C | 826 mm |
| Saint-Éloy-les-Mines 22 km | Durdat-Larequille | 25.2°C 1.9°C warmer | 0.3°C 0.8°C milder | 879 mm |
Biollet weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Saint-Gervais-d au station; sunshine at Clermont-Fd.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 5.3°C | −0.5°C | 2.4°C | 53 mm | 85 |
| February | 6.2°C | −0.6°C | 2.8°C | 43 mm | 110 |
| March | 10.1°C | 1.8°C | 5.9°C | 48 mm | 165 |
| April | 13.0°C | 4.0°C | 8.5°C | 71 mm | 179 |
| May | 16.9°C | 7.5°C | 12.2°C | 91 mm | 200 |
| June | 20.9°C | 10.7°C | 15.8°C | 86 mm | 225 |
| July | 23.3°C | 12.6°C | 17.9°C | 82 mm | 256 |
| August | 23.4°C | 12.6°C | 18.0°C | 74 mm | 243 |
| September | 19.1°C | 9.3°C | 14.2°C | 75 mm | 191 |
| October | 14.7°C | 6.7°C | 10.7°C | 67 mm | 136 |
| November | 9.2°C | 2.7°C | 5.9°C | 74 mm | 90 |
| December | 6.1°C | 0.4°C | 3.2°C | 61 mm | 78 |
| Year | 14.0°C | 5.6°C | 9.8°C | 826 mm | 1,958 |
Where Biollet’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Saint-Gervais-d au, 9.9 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, Clermont-Fd, 42 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 Biollet’s climate
How warm does Biollet get in summer?
August is the warmest month, with average highs of 23.4°C. About 36 days a year reach 25°C, fewer than 85% of mainland French towns, and about 8 reach 30°C.
How cold does Biollet get in winter?
February nights average −0.6°C. The air drops to 0°C or below on about 69 nights a year, and about 15 days a year stay below freezing all day.
How much rain does Biollet get?
About 826 mm a year, more than 67% of mainland French towns. May is the wettest month (91 mm) and February the driest (43 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Clermont-Fd (42 km away), averages 1,958 hours of sunshine a year.
Are these figures for Biollet itself?
No: they are the normals of the Météo-France station matched to Biollet, Saint-Gervais-d au, 9.9 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 ST-GERVAIS-D AU, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Biollet →
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.