Few mainland French towns get more frosts than Mercœur
July afternoons average 23.8°C. Wet weather is most frequent in May and least in February. Summers stay cool: July afternoons here are cooler than in 85% of mainland French towns. An umbrella earns its place on about 104 days a year with 1 mm of rain or more.
Figures from Météo-France’s Saint-Flour station, 26 km south-west: at that distance, read them as the area’s climate rather than the town’s.
A year in Mercœur at a glance
Each month’s typical high and low in °C, at the Saint-Flour station.
What a year in Mercœur feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Saint-Flour.
About 800 mm of rain a year
May is the wettest month and February the driest. About 25 days a year bring 10 mm or more. 9th wettest of 24 towns of 2,500+ in Haute-Loire.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Coltines
A frosty town: 98 frosts and 39 days of 25°C a year
On about 98 nights a year the air drops to 0°C or below, and on about 17 days it stays below freezing all day. About 39 days a year reach 25°C, and 7 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Saint-Flour: 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-Flour
Saint-Flour is 26 km south-west of Mercœur. Every figure on this page is the station’s, not a measurement in Mercœur itself.
| Station (Météo-France number) | Saint-Flour (15187006) |
| Distance from the town | 26 km south-west |
| Station altitude | 909 m |
| Town altitude (its center) | 936 m |
| Period | 1991–2020 |
| Nearest station of any kind | 10 km |
| Sunshine measured at | Coltines, 27 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 Mercœur 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 Haute-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 |
|---|---|---|---|---|
| Mercœur | Saint-Flour | 23.8°C | −2.2°C | 800 mm |
| Brioude 14 km | Fontannes | 27.8°C 4°C warmer | −0.7°C 1.5°C milder | 612 mm |
| Langeac 18 km | Chavaniac-Lafayette | 26.6°C 2.8°C warmer | −1.4°C 0.8°C milder | 766 mm |
| Saint-Flour 24 km | same station | 23.8°C about the same | −2.2°C about the same | 800 mm |
| Sainte-Florine 25 km | Fontannes | 27.8°C 4°C warmer | −0.7°C 1.5°C milder | 612 mm |
| Brassac-les-Mines 26 km | Fontannes | 27.8°C 4°C warmer | −0.7°C 1.5°C milder | 612 mm |
Mercœur weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Saint-Flour station; sunshine at Coltines.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 4.5°C | −2.2°C | 1.2°C | 52 mm | 108 |
| February | 5.7°C | −2.3°C | 1.7°C | 43 mm | 137 |
| March | 9.6°C | 0.1°C | 4.8°C | 43 mm | 174 |
| April | 12.3°C | 2.3°C | 7.3°C | 72 mm | 187 |
| May | 16.6°C | 5.9°C | 11.2°C | 83 mm | 211 |
| June | 20.9°C | 9.3°C | 15.1°C | 73 mm | 247 |
| July | 23.8°C | 11.0°C | 17.4°C | 60 mm | 279 |
| August | 23.7°C | 10.7°C | 17.2°C | 75 mm | 252 |
| September | 19.0°C | 7.6°C | 13.3°C | 83 mm | 196 |
| October | 14.3°C | 5.3°C | 9.8°C | 81 mm | 141 |
| November | 8.4°C | 1.3°C | 4.9°C | 73 mm | 102 |
| December | 5.3°C | −1.4°C | 1.9°C | 63 mm | 105 |
| Year | 13.7°C | 4.0°C | 8.8°C | 800 mm | 2,139 |
Where Mercœur’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Saint-Flour, 26 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, Coltines, 27 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 Haute-Loire.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Mercœur’s climate
How warm does Mercœur get in summer?
July is the warmest month, with average highs of 23.8°C. About 39 days a year reach 25°C, fewer than 82% of mainland French towns, and about 7 reach 30°C.
How cold does Mercœur get in winter?
February nights average −2.3°C. The air drops to 0°C or below on about 98 nights a year, and about 17 days a year stay below freezing all day.
How much rain does Mercœur get?
About 800 mm a year, more than 60% of mainland French towns. May is the wettest month (83 mm) and February the driest (43 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Coltines (27 km away), averages 2,139 hours of sunshine a year.
Are these figures for Mercœur itself?
No: they are the normals of the Météo-France station matched to Mercœur, Saint-Flour, 26 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 FLOUR, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Mercœur →
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.