Hardly any mainland French towns collect more rain than Mariac: 1,179 mm a year
Peak summer warmth arrives in July, with afternoons near 28.3°C. Rain peaks in November and eases off in February. None of the 22 towns of 2,500+ in Ardèche has cooler July afternoons. Expect about 56 frosty starts a year, nights when the air falls below freezing.
Figures from Météo-France’s Cheylard Sa station, 6.4 km north-east.
A year in Mariac at a glance
Each month’s typical high and low in °C, at the Cheylard Sa station.
What a year in Mariac feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Cheylard Sa.
About 1,179 mm of rain a year
November is the wettest month and February the driest. About 31 days a year bring 10 mm or more. 3rd wettest of 22 towns of 2,500+ in Ardèche.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Mazet-Volamont
A frosty town: 56 frosts and 84 days of 25°C a year
On about 56 nights a year the air drops to 0°C or below, and on about 3 days it stays below freezing all day. About 84 days a year reach 25°C, and 30 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Cheylard Sa: 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 Cheylard Sa
Cheylard Sa is 6.4 km north-east of Mariac. Every figure on this page is the station’s, not a measurement in Mariac itself.
| Station (Météo-France number) | Cheylard Sa (07064001) |
| Distance from the town | 6.4 km north-east |
| Station altitude | 418 m |
| Town altitude (its center) | 572 m |
| Period | 1991–2020 |
| Sunshine measured at | Mazet-Volamont, 18 km away |
Mariac sits 154 m higher than the station. Air usually cools by about 0.65°C every 100 m, so expect Mariac to run about 1°C cooler 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 Mariac 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 Ardèche.
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 |
|---|---|---|---|---|
| Mariac | Cheylard Sa | 28.3°C | 0.2°C | 1,179 mm |
| Le Cheylard 5.3 km | same station | 28.3°C about the same | 0.2°C about the same | 1,179 mm |
| Le Chambon-sur-Lignon 20 km | Mazet-Volamont | 21.6°C 6.7°C cooler | −2.5°C 2.7°C colder | 975 mm |
| Vals-les-Bains 25 km | Vals-les-Bains | 29.7°C 1.4°C warmer | 1.6°C 1.4°C milder | 1,250 mm |
| Privas 25 km | Chomérac Sa | 29.0°C 0.7°C warmer | 1.1°C 0.9°C milder | 1,105 mm |
| Tence 26 km | Yssingeaux | 24.6°C 3.7°C cooler | −2.2°C 2.4°C colder | 949 mm |
Mariac weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Cheylard Sa station; sunshine at Mazet-Volamont.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 8.1°C | 0.2°C | 4.1°C | 85 mm | 98 |
| February | 9.7°C | 0.3°C | 5.0°C | 55 mm | 122 |
| March | 13.9°C | 2.7°C | 8.3°C | 62 mm | 168 |
| April | 17.0°C | 5.4°C | 11.2°C | 89 mm | 182 |
| May | 21.0°C | 8.8°C | 14.9°C | 97 mm | 197 |
| June | 25.4°C | 12.2°C | 18.8°C | 73 mm | 234 |
| July | 28.3°C | 14.1°C | 21.2°C | 68 mm | 277 |
| August | 28.0°C | 13.7°C | 20.9°C | 74 mm | 250 |
| September | 23.0°C | 10.6°C | 16.8°C | 127 mm | 192 |
| October | 17.7°C | 7.9°C | 12.8°C | 176 mm | 138 |
| November | 11.9°C | 3.7°C | 7.8°C | 180 mm | 99 |
| December | 8.5°C | 0.9°C | 4.7°C | 93 mm | 100 |
| Year | 17.7°C | 6.7°C | 12.2°C | 1,179 mm | 2,057 |
Where Mariac’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Cheylard Sa, 6.4 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, Mazet-Volamont, 18 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 Ardèche.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Mariac’s climate
How warm does Mariac get in summer?
July is the warmest month, with average highs of 28.3°C. About 84 days a year reach 25°C, more than 75% of mainland French towns, and about 30 reach 30°C.
How cold does Mariac get in winter?
January nights average 0.2°C. The air drops to 0°C or below on about 56 nights a year, and about 3 days a year stay below freezing all day.
How much rain does Mariac get?
About 1,179 mm a year, more than 96% of mainland French towns. November is the wettest month (180 mm) and February the driest (55 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Mazet-Volamont (18 km away), averages 2,057 hours of sunshine a year.
Are these figures for Mariac itself?
No: they are the normals of the Météo-France station matched to Mariac, Cheylard Sa, 6.4 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 CHEYLARD SA, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Mariac →
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.