Hardly any mainland French towns wake to more frost than Olmet
Expect July afternoons of about 24.7°C. Rain peaks in May and eases off in March. Its yearly rainfall tops that of 87% of mainland French towns. An umbrella earns its place on about 134 days a year with 1 mm of rain or more.
Figures from Météo-France’s Cunlhat station, 12 km south-west.
A year in Olmet at a glance
Each month’s typical high and low in °C, at the Cunlhat station.
What a year in Olmet feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Cunlhat.
About 1,010 mm of rain a year
May is the wettest month and March the driest. About 32 days a year bring 10 mm or more. 4th wettest of 44 towns of 2,500+ in Puy-de-Dôme.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Saint-Germain-l He
A frosty town: 81 frosts and 50 days of 25°C a year
On about 81 nights a year the air drops to 0°C or below, and on about 15 days it stays below freezing all day. About 50 days a year reach 25°C, and 13 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Cunlhat: 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 Cunlhat
Cunlhat is 12 km south-west of Olmet. Every figure on this page is the station’s, not a measurement in Olmet itself.
| Station (Météo-France number) | Cunlhat (63132002) |
| Distance from the town | 12 km south-west |
| Station altitude | 700 m |
| Town altitude (its center) | 642 m |
| Period | 1991–2020 |
| Nearest station of any kind | 8.4 km |
| Sunshine measured at | Saint-Germain-l He, 30 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 Olmet 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 |
|---|---|---|---|---|
| Olmet | Cunlhat | 24.7°C | −1.0°C | 1,010 mm |
| Courpière 11 km | Clermont-Fd | 26.8°C 2.1°C warmer | 0.6°C 1.6°C milder | 563 mm |
| Thiers 19 km | Clermont-Fd | 26.8°C 2.1°C warmer | 0.6°C 1.6°C milder | 563 mm |
| Ambert 19 km | Ambert | 26.0°C 1.3°C warmer | −1.9°C 0.9°C colder | 860 mm |
| Lezoux 25 km | Clermont-Fd | 26.8°C 2.1°C warmer | 0.6°C 1.6°C milder | 563 mm |
| Billom 25 km | Clermont-Fd | 26.8°C 2.1°C warmer | 0.6°C 1.6°C milder | 563 mm |
| Boën-sur-Lignon 27 km | Boën-sur-Lignon | 27.4°C 2.7°C warmer | −0.3°C 0.7°C milder | 630 mm |
Olmet weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Cunlhat station; sunshine at Saint-Germain-l He.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 6.1°C | −1.0°C | 2.6°C | 67 mm | 83 |
| February | 7.0°C | −1.2°C | 2.9°C | 61 mm | 106 |
| March | 11.0°C | 1.2°C | 6.1°C | 60 mm | 160 |
| April | 14.1°C | 3.5°C | 8.8°C | 85 mm | 176 |
| May | 18.3°C | 7.2°C | 12.7°C | 110 mm | 182 |
| June | 22.2°C | 10.5°C | 16.4°C | 101 mm | 214 |
| July | 24.7°C | 12.2°C | 18.4°C | 84 mm | 242 |
| August | 24.8°C | 12.1°C | 18.4°C | 91 mm | 230 |
| September | 20.1°C | 8.8°C | 14.4°C | 92 mm | 188 |
| October | 15.5°C | 6.5°C | 11.0°C | 95 mm | 130 |
| November | 9.8°C | 2.4°C | 6.1°C | 97 mm | 82 |
| December | 6.9°C | −0.1°C | 3.4°C | 68 mm | 76 |
| Year | 15.0°C | 5.2°C | 10.1°C | 1,010 mm | 1,869 |
Where Olmet’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Cunlhat, 12 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, Saint-Germain-l He, 30 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 Olmet’s climate
How warm does Olmet get in summer?
August is the warmest month, with average highs of 24.8°C. About 50 days a year reach 25°C, fewer than 68% of mainland French towns, and about 13 reach 30°C.
How cold does Olmet get in winter?
February nights average −1.2°C. The air drops to 0°C or below on about 81 nights a year, and about 15 days a year stay below freezing all day.
How much rain does Olmet get?
About 1,010 mm a year, more than 87% of mainland French towns. May is the wettest month (110 mm) and March the driest (60 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Saint-Germain-l He (30 km away), averages 1,869 hours of sunshine a year.
Are these figures for Olmet itself?
No: they are the normals of the Météo-France station matched to Olmet, Cunlhat, 12 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 CUNLHAT, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Olmet →
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.