Rottier has some of the coldest winter nights among mainland French towns
Sunny July days climb to about 29.2°C. By July afternoons alone, it runs hotter than 89% of mainland French towns. Seasons differ by 32°C, from the coldest nights to the warmest afternoons. Expect about 94 frosty starts a year, nights when the air falls below freezing.
These are the figures of Météo-France’s Rosans station, 11 km south.
A year in Rottier at a glance
Each month’s typical high and low in °C, at the Rosans station.
What a year in Rottier feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Rosans.
About 827 mm of rain a year
October is the wettest month and February the driest. About 27 days a year bring 10 mm or more. 35th wettest of 40 towns of 2,500+ in Drôme.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Carpentras
A frosty town: 94 frosts and 95 days of 25°C a year
On about 94 nights a year the air drops to 0°C or below, and on about 2 days it stays below freezing all day. About 95 days a year reach 25°C, and 40 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Rosans: 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 Rosans
Rosans is 11 km south of Rottier. Every figure on this page is the station’s, not a measurement in Rottier itself.
| Station (Météo-France number) | Rosans (05126001) |
| Distance from the town | 11 km south |
| Station altitude | 625 m |
| Town altitude (its center) | 653 m |
| Period | 1991–2020 |
| Nearest station of any kind | 6.6 km |
| Sunshine measured at | Carpentras, 52 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 Rottier 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 Drôme.
Nearby towns’ climate
The nearest towns of 2,500+ within 29 km, each with its own matched station.
Rottier weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Rosans station; sunshine at Carpentras.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 9.1°C | −2.2°C | 3.5°C | 60 mm | 151 |
| February | 10.6°C | −2.4°C | 4.1°C | 45 mm | 173 |
| March | 14.6°C | 0.6°C | 7.6°C | 54 mm | 230 |
| April | 17.4°C | 3.5°C | 10.4°C | 68 mm | 244 |
| May | 21.5°C | 7.3°C | 14.4°C | 66 mm | 285 |
| June | 26.0°C | 10.7°C | 18.3°C | 58 mm | 328 |
| July | 29.2°C | 12.7°C | 20.9°C | 49 mm | 363 |
| August | 29.1°C | 12.3°C | 20.7°C | 58 mm | 327 |
| September | 24.0°C | 9.2°C | 16.6°C | 92 mm | 257 |
| October | 19.0°C | 6.2°C | 12.6°C | 107 mm | 191 |
| November | 12.9°C | 1.7°C | 7.3°C | 103 mm | 149 |
| December | 9.1°C | −1.5°C | 3.8°C | 68 mm | 138 |
| Year | 18.5°C | 4.8°C | 11.7°C | 827 mm | 2,835 |
Where Rottier’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Rosans, 11 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, Carpentras, 52 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 Drôme.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Rottier’s climate
How warm does Rottier get in summer?
July is the warmest month, with average highs of 29.2°C. About 95 days a year reach 25°C, more than 85% of mainland French towns, and about 40 reach 30°C.
How cold does Rottier get in winter?
February nights average −2.4°C. The air drops to 0°C or below on about 94 nights a year, and about 2 days a year stay below freezing all day.
How much rain does Rottier get?
About 827 mm a year, more than 67% of mainland French towns. October is the wettest month (107 mm) and February the driest (45 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Carpentras (52 km away), averages 2,835 hours of sunshine a year.
Are these figures for Rottier itself?
No: they are the normals of the Météo-France station matched to Rottier, Rosans, 11 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 ROSANS, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Rottier →
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.