Izon-la-Bruisse has some of the coldest winter nights among mainland French towns
The warmest part of a July day comes in at 27.4°C on average. The rainiest month is November; the driest is July. Rain is plentiful here, more than falls on 88% of mainland French towns. The heating season runs November to April: each of those months averages under 10°C.
Figures from Météo-France’s Séderon station, 8.7 km south-west.
A year in Izon-la-Bruisse at a glance
Each month’s typical high and low in °C, at the Séderon station.
What a year in Izon-la-Bruisse feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Séderon.
About 1,032 mm of rain a year
November is the wettest month and July the driest. About 33 days a year bring 10 mm or more. 2nd wettest of 40 towns of 2,500+ in Drôme.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Saint-Auban
A frosty town: 135 frosts and 75 days of 25°C a year
On about 135 nights a year the air drops to 0°C or below, and on about 2 days it stays below freezing all day. About 75 days a year reach 25°C, and 21 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Séderon: 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 Séderon
Séderon is 8.7 km south-west of Izon-la-Bruisse. Every figure on this page is the station’s, not a measurement in Izon-la-Bruisse itself.
| Station (Météo-France number) | Séderon (26340001) |
| Distance from the town | 8.7 km south-west |
| Station altitude | 804 m |
| Town altitude (its center) | 1,157 m |
| Period | 1991–2020 |
| Sunshine measured at | Saint-Auban, 39 km away |
Izon-la-Bruisse sits 353 m higher than the station. Air usually cools by about 0.65°C every 100 m, so expect Izon-la-Bruisse to run about 2.3°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 Izon-la-Bruisse 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.
| Town | Station | July high | January low | Rain a year |
|---|---|---|---|---|
| Izon-la-Bruisse | Séderon | 27.4°C | −4.8°C | 1,032 mm |
| Laragne-Montéglin 19 km | Laragne-Montéglin | 30.5°C 3.1°C warmer | −2.6°C 2.2°C milder | 814 mm |
| Sisteron 29 km | Saint-Auban | 30.3°C 2.9°C warmer | 0.2°C 5°C milder | 714 mm |
Izon-la-Bruisse weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Séderon station; sunshine at Saint-Auban.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 7.9°C | −4.8°C | 1.6°C | 89 mm | 168 |
| February | 9.4°C | −4.7°C | 2.3°C | 65 mm | 183 |
| March | 13.2°C | −2.0°C | 5.6°C | 64 mm | 230 |
| April | 15.9°C | 1.0°C | 8.4°C | 96 mm | 228 |
| May | 20.2°C | 4.6°C | 12.4°C | 85 mm | 263 |
| June | 24.5°C | 7.8°C | 16.1°C | 63 mm | 303 |
| July | 27.4°C | 9.8°C | 18.6°C | 39 mm | 342 |
| August | 27.4°C | 9.6°C | 18.5°C | 59 mm | 312 |
| September | 22.3°C | 6.4°C | 14.4°C | 100 mm | 249 |
| October | 17.5°C | 3.7°C | 10.6°C | 131 mm | 196 |
| November | 11.7°C | −0.7°C | 5.5°C | 149 mm | 157 |
| December | 8.0°C | −3.9°C | 2.1°C | 94 mm | 149 |
| Year | 17.1°C | 2.2°C | 9.7°C | 1,032 mm | 2,779 |
Where Izon-la-Bruisse’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Séderon, 8.7 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, Saint-Auban, 39 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 Izon-la-Bruisse’s climate
How warm does Izon-la-Bruisse get in summer?
July is the warmest month, with average highs of 27.4°C. About 75 days a year reach 25°C, more than 67% of mainland French towns, and about 21 reach 30°C.
How cold does Izon-la-Bruisse get in winter?
January nights average −4.8°C. The air drops to 0°C or below on about 135 nights a year, and about 2 days a year stay below freezing all day.
How much rain does Izon-la-Bruisse get?
About 1,032 mm a year, more than 88% of mainland French towns. November is the wettest month (149 mm) and July the driest (39 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Saint-Auban (39 km away), averages 2,779 hours of sunshine a year.
Are these figures for Izon-la-Bruisse itself?
No: they are the normals of the Météo-France station matched to Izon-la-Bruisse, Séderon, 8.7 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 SEDERON, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Izon-la-Bruisse →
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.