Ice on the ground: Saint-Bon sees more frosts than 92% of mainland French towns
July afternoons average 26.0°C. The gap between a January night and a July afternoon is 26°C. Homes need heating from November to April, the months averaging under 10°C.
Figures from Météo-France’s Esternay-Man station, 10 km north-east.
A year in Saint-Bon at a glance
Each month’s typical high and low in °C, at the Esternay-Man station.
What a year in Saint-Bon feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Esternay-Man.
About 781 mm of rain a year
December is the wettest month and April the driest. About 21 days a year bring 10 mm or more. 2nd wettest of 22 towns of 2,500+ in Marne.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Troyes-Barberey
A frosty town: 72 frosts and 62 days of 25°C a year
On about 72 nights a year the air drops to 0°C or below, and on about 5 days it stays below freezing all day. About 62 days a year reach 25°C, and 18 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Esternay-Man: 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 Esternay-Man
Esternay-Man is 10 km north-east of Saint-Bon. Every figure on this page is the station’s, not a measurement in Saint-Bon itself.
| Station (Météo-France number) | Esternay-Man (51237001) |
| Distance from the town | 10 km north-east |
| Station altitude | 175 m |
| Town altitude (its center) | 182 m |
| Period | 1991–2020 |
| Sunshine measured at | Troyes-Barberey, 57 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 Saint-Bon 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 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 |
|---|---|---|---|---|
| Saint-Bon | Esternay-Man | 26.0°C | 0.4°C | 781 mm |
| Villenauxe-la-Grande 12 km | Romilly | 26.2°C about the same | 0.8°C about the same | 620 mm |
| La Ferté-Gaucher 17 km | Chevru | 25.3°C 0.7°C cooler | 1.3°C 0.9°C milder | 698 mm |
| Provins 18 km | Voulton | 25.6°C about the same | 1.2°C 0.8°C milder | 741 mm |
| Sézanne 20 km | same station | 26.0°C about the same | 0.4°C about the same | 781 mm |
| Nogent-sur-Seine 21 km | Bouy-sur-Orvin | 26.3°C about the same | 1.3°C 0.9°C milder | 636 mm |
| Montmirail 22 km | Esternay | 25.4°C 0.6°C cooler | 0.9°C 0.5°C milder | 701 mm |
Saint-Bon weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Esternay-Man station; sunshine at Troyes-Barberey.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 6.5°C | 0.4°C | 3.4°C | 69 mm | 63 |
| February | 8.0°C | 0.1°C | 4.1°C | 60 mm | 90 |
| March | 12.4°C | 1.9°C | 7.1°C | 58 mm | 148 |
| April | 16.3°C | 3.6°C | 9.9°C | 53 mm | 190 |
| May | 20.1°C | 7.3°C | 13.7°C | 70 mm | 216 |
| June | 23.5°C | 10.4°C | 17.0°C | 60 mm | 231 |
| July | 26.0°C | 12.3°C | 19.2°C | 64 mm | 242 |
| August | 26.0°C | 12.0°C | 19.0°C | 56 mm | 232 |
| September | 21.7°C | 8.9°C | 15.3°C | 57 mm | 186 |
| October | 16.4°C | 6.8°C | 11.6°C | 75 mm | 125 |
| November | 10.5°C | 3.4°C | 6.9°C | 71 mm | 70 |
| December | 7.1°C | 1.1°C | 4.1°C | 87 mm | 57 |
| Year | 16.2°C | 5.7°C | 10.9°C | 781 mm | 1,851 |
Where Saint-Bon’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Esternay-Man, 10 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, Troyes-Barberey, 57 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 Marne.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Saint-Bon’s climate
How warm does Saint-Bon get in summer?
July is the warmest month, with average highs of 26.0°C. About 62 days a year reach 25°C, more than 51% of mainland French towns, and about 18 reach 30°C.
How cold does Saint-Bon get in winter?
February nights average 0.1°C. The air drops to 0°C or below on about 72 nights a year, and about 5 days a year stay below freezing all day.
How much rain does Saint-Bon get?
About 781 mm a year, more than 55% of mainland French towns. December is the wettest month (87 mm) and April the driest (53 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Troyes-Barberey (57 km away), averages 1,851 hours of sunshine a year.
Are these figures for Saint-Bon itself?
No: they are the normals of the Météo-France station matched to Saint-Bon, Esternay-Man, 10 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 ESTERNAY-MAN, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Saint-Bon →
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.