Frost comes to Rillans more often than to 92% of mainland French towns
Météo-France’s Villersexel Sa station, 15 km north: a typical January night drops to −0.6°C and a July afternoon reaches 25.9°C; 1,038 mm of rain falls in a year. It is a wet place: more rain falls here than on 89% of mainland French towns. No month is much wetter than another: May, the wettest, gets little more than April, the driest.
A year in Rillans at a glance
Each month’s typical high and low in °C, at the Villersexel Sa station.
What a year in Rillans feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Villersexel Sa.
About 1,038 mm of rain a year
May is the wettest month and April the driest. About 34 days a year bring 10 mm or more. 34th wettest of 34 towns of 2,500+ in Doubs.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Besançon
A frosty town: 73 frosts and 59 days of 25°C a year
On about 73 nights a year the air drops to 0°C or below, and on about 9 days it stays below freezing all day. About 59 days a year reach 25°C, and 16 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Villersexel 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 Villersexel Sa
Villersexel Sa is 15 km north of Rillans. Every figure on this page is the station’s, not a measurement in Rillans itself.
| Station (Météo-France number) | Villersexel Sa (70561002) |
| Distance from the town | 15 km north |
| Station altitude | 290 m |
| Town altitude (its center) | 399 m |
| Period | 1992–2020 (the station’s own record) |
| Nearest station of any kind | 9.1 km |
| Sunshine measured at | Besançon, 34 km away |
Rillans sits 109 m higher than the station. Air usually cools by about 0.65°C every 100 m, so expect Rillans to run about 0.7°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 Rillans 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 Doubs.
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 |
|---|---|---|---|---|
| Rillans | Villersexel Sa | 25.9°C | −0.6°C | 1,038 mm |
| Baume-les-Dames 7.1 km | Pouligney | 27.0°C 1.1°C warmer | −1.4°C 0.8°C colder | 1,215 mm |
| L'Isle-sur-le-Doubs 17 km | same station | 25.9°C about the same | −0.6°C about the same | 1,038 mm |
| Thise 26 km | Besançon | 25.7°C about the same | 0.1°C 0.7°C milder | 1,157 mm |
| Échenoz-la-Méline 27 km | Vesoul Ville | 27.2°C 1.3°C warmer | −0.4°C about the same | 1,008 mm |
| Vesoul 28 km | Vesoul Ville | 27.2°C 1.3°C warmer | −0.4°C about the same | 1,008 mm |
| Saône 28 km | Besançon | 25.7°C about the same | 0.1°C 0.7°C milder | 1,157 mm |
Rillans weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Villersexel Sa station; sunshine at Besançon.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 5.4°C | −0.6°C | 2.4°C | 80 mm | 68 |
| February | 7.2°C | −0.5°C | 3.4°C | 74 mm | 97 |
| March | 11.7°C | 1.8°C | 6.7°C | 75 mm | 153 |
| April | 16.0°C | 4.5°C | 10.2°C | 70 mm | 184 |
| May | 19.8°C | 8.4°C | 14.1°C | 100 mm | 208 |
| June | 23.9°C | 11.8°C | 17.9°C | 82 mm | 231 |
| July | 25.9°C | 13.6°C | 19.7°C | 86 mm | 249 |
| August | 25.4°C | 13.3°C | 19.3°C | 89 mm | 237 |
| September | 20.8°C | 9.8°C | 15.3°C | 87 mm | 184 |
| October | 16.0°C | 6.8°C | 11.4°C | 100 mm | 132 |
| November | 9.6°C | 2.7°C | 6.2°C | 96 mm | 75 |
| December | 6.0°C | 0.2°C | 3.1°C | 100 mm | 56 |
| Year | 15.6°C | 6.0°C | 10.8°C | 1,038 mm | 1,873 |
Where Rillans’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Villersexel Sa, 15 km away: statistics for 1991–2020 (the station’s own years, 1992–2020, where its record is shorter).
- 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, Besançon, 34 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 Doubs.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Rillans’s climate
How warm does Rillans get in summer?
July is the warmest month, with average highs of 25.9°C. About 59 days a year reach 25°C, fewer than 53% of mainland French towns, and about 16 reach 30°C.
How cold does Rillans get in winter?
January nights average −0.6°C. The air drops to 0°C or below on about 73 nights a year, and about 9 days a year stay below freezing all day.
How much rain does Rillans get?
About 1,038 mm a year, more than 89% of mainland French towns. May is the wettest month (100 mm) and April the driest (70 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Besançon (34 km away), averages 1,873 hours of sunshine a year.
Are these figures for Rillans itself?
No: they are the normals of the Météo-France station matched to Rillans, Villersexel Sa, 15 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 VILLERSEXEL SA, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Rillans →
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.