Frost comes to Decize more often than to 81% of mainland French towns
High summer brings afternoon highs near 27.0°C. Its July heat outdoes that of 68% of mainland French towns. Winter and summer sit 27°C apart. For walks and days out, the stretch from May to July and September brings highs of 21–27°C.
These are the figures of Météo-France’s Yzeure station, 28 km south; at that distance they describe the area more than the town.
A year in Decize at a glance
Each month’s typical high and low in °C, at the Yzeure station.
What a year in Decize feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Yzeure.
About 796 mm of rain a year
November is the wettest month and February the driest. About 23 days a year bring 10 mm or more. 6th wettest of 13 towns of 2,500+ in Nièvre.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Nevers-Marzy
A frosty town: 60 frosts and 72 days of 25°C a year
On about 60 nights a year the air drops to 0°C or below, and on about 6 days it stays below freezing all day. About 72 days a year reach 25°C, and 25 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Yzeure: 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 Yzeure
Yzeure is 28 km south of Decize. Every figure on this page is the station’s, not a measurement in Decize itself.
| Station (Météo-France number) | Yzeure (03321001) |
| Distance from the town | 28 km south |
| Station altitude | 242 m |
| Town altitude (its center) | 189 m |
| Period | 1991–2020 |
| Nearest station of any kind | 20 km |
| Sunshine measured at | Nevers-Marzy, 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 Decize 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 Nièvre.
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 |
|---|---|---|---|---|
| Decize | Yzeure | 27.0°C | 0.8°C | 796 mm |
| La Machine 7.6 km | Ourouer | 25.9°C 1.1°C cooler | 0.8°C about the same | 889 mm |
| Imphy 19 km | Nevers-Marzy | 26.0°C 1°C cooler | 0.6°C about the same | 784 mm |
| Avermes 28 km | same station | 27.0°C about the same | 0.8°C about the same | 796 mm |
Decize weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Yzeure station; sunshine at Nevers-Marzy.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 7.1°C | 0.8°C | 3.9°C | 60 mm | 63 |
| February | 8.6°C | 0.6°C | 4.6°C | 50 mm | 91 |
| March | 13.2°C | 2.7°C | 8.0°C | 52 mm | 154 |
| April | 16.8°C | 4.9°C | 10.9°C | 65 mm | 181 |
| May | 20.6°C | 8.9°C | 14.7°C | 81 mm | 205 |
| June | 24.6°C | 12.4°C | 18.5°C | 71 mm | 226 |
| July | 27.0°C | 14.2°C | 20.6°C | 68 mm | 245 |
| August | 27.1°C | 13.9°C | 20.5°C | 64 mm | 236 |
| September | 22.4°C | 10.2°C | 16.3°C | 68 mm | 189 |
| October | 17.0°C | 7.8°C | 12.4°C | 71 mm | 123 |
| November | 11.0°C | 3.8°C | 7.4°C | 83 mm | 72 |
| December | 7.6°C | 1.3°C | 4.5°C | 65 mm | 59 |
| Year | 16.9°C | 6.8°C | 11.9°C | 796 mm | 1,844 |
Where Decize’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Yzeure, 28 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, Nevers-Marzy, 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 Nièvre.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Decize’s climate
How warm does Decize get in summer?
August is the warmest month, with average highs of 27.1°C. About 72 days a year reach 25°C, more than 66% of mainland French towns, and about 25 reach 30°C.
How cold does Decize get in winter?
February nights average 0.6°C. The air drops to 0°C or below on about 60 nights a year, and about 6 days a year stay below freezing all day.
How much rain does Decize get?
About 796 mm a year, more than 59% of mainland French towns. November is the wettest month (83 mm) and February the driest (50 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Nevers-Marzy (33 km away), averages 1,844 hours of sunshine a year.
Are these figures for Decize itself?
No: they are the normals of the Météo-France station matched to Decize, Yzeure, 28 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 YZEURE, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Decize →
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.