Frost comes to Mars-sous-Bourcq more often than to 86% of mainland French towns
Sunny July days climb to about 25.3°C. December is the wettest month, April the driest. Days of 25°C are scarce: about 50 a year, fewer than in 68% of mainland French towns. For walks and days out, the stretch from May to September brings highs of 19–25°C.
Figures from Météo-France’s Cauroy station, 14 km south-west.
A year in Mars-sous-Bourcq at a glance
Each month’s typical high and low in °C, at the Cauroy station.
What a year in Mars-sous-Bourcq feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Cauroy.
About 750 mm of rain a year
December is the wettest month and April the driest. About 20 days a year bring 10 mm or more. 12th wettest of 13 towns of 2,500+ in Ardennes.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Charleville-Mez
A frosty town: 65 frosts and 50 days of 25°C a year
On about 65 nights a year the air drops to 0°C or below, and on about 7 days it stays below freezing all day. About 50 days a year reach 25°C, and 12 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Cauroy: 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 Cauroy
Cauroy is 14 km south-west of Mars-sous-Bourcq. Every figure on this page is the station’s, not a measurement in Mars-sous-Bourcq itself.
| Station (Météo-France number) | Cauroy (08092001) |
| Distance from the town | 14 km south-west |
| Station altitude | 139 m |
| Town altitude (its center) | 103 m |
| Period | 1991–2020 |
| Nearest station of any kind | 11 km |
| Sunshine measured at | Charleville-Mez, 43 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 Mars-sous-Bourcq 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 Ardennes.
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.
Mars-sous-Bourcq weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Cauroy station; sunshine at Charleville-Mez.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 5.8°C | 0.3°C | 3.1°C | 64 mm | 50 |
| February | 7.2°C | 0.3°C | 3.8°C | 55 mm | 69 |
| March | 11.6°C | 2.3°C | 6.9°C | 58 mm | 128 |
| April | 15.7°C | 4.4°C | 10.0°C | 48 mm | 177 |
| May | 19.4°C | 8.1°C | 13.8°C | 63 mm | 197 |
| June | 22.6°C | 11.1°C | 16.8°C | 62 mm | 203 |
| July | 25.3°C | 13.1°C | 19.2°C | 64 mm | 214 |
| August | 25.1°C | 13.0°C | 19.0°C | 71 mm | 199 |
| September | 20.8°C | 9.9°C | 15.3°C | 55 mm | 153 |
| October | 15.5°C | 7.2°C | 11.3°C | 66 mm | 97 |
| November | 9.6°C | 3.7°C | 6.6°C | 65 mm | 48 |
| December | 6.2°C | 1.2°C | 3.7°C | 79 mm | 41 |
| Year | 15.4°C | 6.2°C | 10.8°C | 750 mm | 1,576 |
Where Mars-sous-Bourcq’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Cauroy, 14 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, Charleville-Mez, 43 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 Ardennes.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Mars-sous-Bourcq’s climate
How warm does Mars-sous-Bourcq get in summer?
July is the warmest month, with average highs of 25.3°C. About 50 days a year reach 25°C, fewer than 68% of mainland French towns, and about 12 reach 30°C.
How cold does Mars-sous-Bourcq get in winter?
January nights average 0.3°C. The air drops to 0°C or below on about 65 nights a year, and about 7 days a year stay below freezing all day.
How much rain does Mars-sous-Bourcq get?
About 750 mm a year, less than 51% of mainland French towns. December is the wettest month (79 mm) and April the driest (48 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Charleville-Mez (43 km away), averages 1,576 hours of sunshine a year.
Are these figures for Mars-sous-Bourcq itself?
No: they are the normals of the Météo-France station matched to Mars-sous-Bourcq, Cauroy, 14 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 CAUROY, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Mars-sous-Bourcq →
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.