July in Génissieux runs hotter than in 89% of mainland French towns
January nights here settle around 0.8°C. October is the wettest month here, with about 2.8 times the rain of February. Winter nights are cold: in January they are colder than in 77% of mainland French towns. Homes need heating from November to March, the months averaging under 10°C.
These are the figures of Météo-France’s Romans station, 7.8 km south-west.
A year in Génissieux at a glance
Each month’s typical high and low in °C, at the Romans station.
What a year in Génissieux feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Romans.
About 877 mm of rain a year
October is the wettest month and February the driest. About 26 days a year bring 10 mm or more. 16th wettest of 40 towns of 2,500+ in Drôme.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Colombier Jeune Rad
49 frosts and 98 days of 25°C a year
On about 49 nights a year the air drops to 0°C or below, and on about 3 days it stays below freezing all day. About 98 days a year reach 25°C, and 40 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Romans: 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 Romans
Romans is 7.8 km south-west of Génissieux. Every figure on this page is the station’s, not a measurement in Génissieux itself.
| Station (Météo-France number) | Romans (26281001) |
| Distance from the town | 7.8 km south-west |
| Station altitude | 156 m |
| Town altitude (its center) | 192 m |
| Period | 1991–2020 |
| Sunshine measured at | Colombier Jeune Rad, 33 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 Génissieux 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. 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 |
|---|---|---|---|---|
| Génissieux | Romans | 29.3°C | 0.8°C | 877 mm |
| Mours-Saint-Eusèbe 2.9 km | same station | 29.3°C about the same | 0.8°C about the same | 877 mm |
| Peyrins 3.5 km | Marsaz | 29.0°C about the same | 0.7°C about the same | 883 mm |
| Romans-sur-Isère 4.7 km | same station | 29.3°C about the same | 0.8°C about the same | 877 mm |
| Bourg-de-Péage 6.1 km | same station | 29.3°C about the same | 0.8°C about the same | 877 mm |
| Chatuzange-le-Goubet 7.4 km | same station | 29.3°C about the same | 0.8°C about the same | 877 mm |
| Saint-Donat-sur-l'Herbasse 9.1 km | Marsaz | 29.0°C about the same | 0.7°C about the same | 883 mm |
Génissieux weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Romans station; sunshine at Colombier Jeune Rad.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 8.1°C | 0.8°C | 4.4°C | 52 mm | 73 |
| February | 9.9°C | 0.9°C | 5.4°C | 42 mm | 99 |
| March | 14.7°C | 3.5°C | 9.1°C | 52 mm | 168 |
| April | 18.2°C | 6.2°C | 12.2°C | 73 mm | 188 |
| May | 22.4°C | 10.3°C | 16.3°C | 84 mm | 218 |
| June | 26.6°C | 13.7°C | 20.2°C | 66 mm | 261 |
| July | 29.3°C | 15.4°C | 22.3°C | 59 mm | 282 |
| August | 29.0°C | 15.1°C | 22.1°C | 69 mm | 253 |
| September | 24.0°C | 11.7°C | 17.9°C | 104 mm | 197 |
| October | 18.7°C | 8.8°C | 13.7°C | 116 mm | 123 |
| November | 12.4°C | 4.4°C | 8.4°C | 106 mm | 81 |
| December | 8.4°C | 1.5°C | 5.0°C | 54 mm | 62 |
| Year | 18.5°C | 7.7°C | 13.1°C | 877 mm | 2,003 |
Where Génissieux’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Romans, 7.8 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, Colombier Jeune Rad, 33 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 Génissieux’s climate
How warm does Génissieux get in summer?
July is the warmest month, with average highs of 29.3°C. About 98 days a year reach 25°C, more than 87% of mainland French towns, and about 40 reach 30°C.
How cold does Génissieux get in winter?
January nights average 0.8°C. The air drops to 0°C or below on about 49 nights a year, and about 3 days a year stay below freezing all day.
How much rain does Génissieux get?
About 877 mm a year, more than 74% of mainland French towns. October is the wettest month (116 mm) and February the driest (42 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Colombier Jeune Rad (33 km away), averages 2,003 hours of sunshine a year.
Are these figures for Génissieux itself?
No: they are the normals of the Météo-France station matched to Génissieux, Romans, 7.8 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 ROMANS_SAPC, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Génissieux →
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.