Ice on the ground: Chamigny sees more frosts than 90% of mainland French towns
Expect July afternoons of about 25.9°C. It is a dry place: less rain falls here than on 61% of mainland French towns. The rainiest month is December; the driest is April. An umbrella earns its place on about 119 days a year with 1 mm of rain or more.
Figures from Météo-France’s Ussy-sur-Marne station, 4 km west.
A year in Chamigny at a glance
Each month’s typical high and low in °C, at the Ussy-sur-Marne station.
What a year in Chamigny feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Ussy-sur-Marne.
About 727 mm of rain a year
December is the wettest month and April the driest. About 19 days a year bring 10 mm or more. 13th wettest of 116 towns of 2,500+ in Seine-et-Marne.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Le Bourget
A frosty town: 68 frosts and 61 days of 25°C a year
On about 68 nights a year the air drops to 0°C or below, and on about 4 days it stays below freezing all day. About 61 days a year reach 25°C, and 17 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Ussy-sur-Marne: 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 Ussy-sur-Marne
Ussy-sur-Marne is 4 km west of Chamigny. Every figure on this page is the station’s, not a measurement in Chamigny itself.
| Station (Météo-France number) | Ussy-sur-Marne (77478001) |
| Distance from the town | 4 km west |
| Station altitude | 69 m |
| Town altitude (its center) | 98 m |
| Period | 1991–2020 |
| Sunshine measured at | Le Bourget, 53 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 Chamigny 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 Seine-et-Marne.
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 |
|---|---|---|---|---|
| Chamigny | Ussy-sur-Marne | 25.9°C | 0.9°C | 727 mm |
| La Ferté-sous-Jouarre 3.1 km | same station | 25.9°C about the same | 0.9°C about the same | 727 mm |
| Jouarre 5.6 km | Mouroux | 25.0°C 0.9°C cooler | 1.3°C about the same | 721 mm |
| Charly-sur-Marne 9.8 km | Saint-Cyr/Morin-Bg | 25.5°C about the same | 1.0°C about the same | 815 mm |
| Lizy-sur-Ourcq 11 km | same station | 25.9°C about the same | 0.9°C about the same | 727 mm |
| Trilport 15 km | same station | 25.9°C about the same | 0.9°C about the same | 727 mm |
| Essômes-sur-Marne 17 km | Saint-Cyr/Morin-Bg | 25.5°C about the same | 1.0°C about the same | 815 mm |
Chamigny weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Ussy-sur-Marne station; sunshine at Le Bourget.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 7.1°C | 0.9°C | 4.0°C | 62 mm | 57 |
| February | 8.4°C | 0.7°C | 4.5°C | 54 mm | 74 |
| March | 12.7°C | 2.4°C | 7.6°C | 50 mm | 129 |
| April | 16.5°C | 4.0°C | 10.3°C | 48 mm | 171 |
| May | 20.1°C | 7.7°C | 13.9°C | 67 mm | 189 |
| June | 23.3°C | 10.6°C | 17.0°C | 59 mm | 203 |
| July | 25.9°C | 12.6°C | 19.2°C | 66 mm | 213 |
| August | 25.8°C | 12.2°C | 19.0°C | 62 mm | 206 |
| September | 21.8°C | 9.3°C | 15.6°C | 52 mm | 162 |
| October | 16.7°C | 7.3°C | 12.0°C | 63 mm | 111 |
| November | 10.9°C | 3.9°C | 7.4°C | 63 mm | 64 |
| December | 7.6°C | 1.5°C | 4.6°C | 80 mm | 54 |
| Year | 16.4°C | 6.1°C | 11.3°C | 727 mm | 1,634 |
Where Chamigny’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Ussy-sur-Marne, 4 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, Le Bourget, 53 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 Seine-et-Marne.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Chamigny’s climate
How warm does Chamigny get in summer?
July is the warmest month, with average highs of 25.9°C. About 61 days a year reach 25°C, more than 51% of mainland French towns, and about 17 reach 30°C.
How cold does Chamigny get in winter?
February nights average 0.7°C. The air drops to 0°C or below on about 68 nights a year, and about 4 days a year stay below freezing all day.
How much rain does Chamigny get?
About 727 mm a year, less than 61% of mainland French towns. December is the wettest month (80 mm) and April the driest (48 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Le Bourget (53 km away), averages 1,634 hours of sunshine a year.
Are these figures for Chamigny itself?
No: they are the normals of the Météo-France station matched to Chamigny, Ussy-sur-Marne, 4 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 USSY-SUR-MARNE, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Chamigny →
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.