Weather without surprises: Saint-Sérotin keeps close to the norm for mainland French towns
July afternoons reach 25.6°C on a typical day and January nights drop to 1.4°C; 732 mm of rain falls in a year. Temperatures cover 24°C across the year, low to high. By warm days alone, it ranks cooler than 68% of mainland French towns. Wet days, with 1 mm of rain or more, come about 118 times a year.
These are the figures of Météo-France’s Savigny/Clairis station, 18 km south.
A year in Saint-Sérotin at a glance
Each month’s typical high and low in °C, at the Savigny/Clairis station.
What a year in Saint-Sérotin feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Savigny/Clairis.
About 732 mm of rain a year
December is the wettest month and March the driest. About 20 days a year bring 10 mm or more. 7th wettest of 19 towns of 2,500+ in Yonne.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Melun
48 frosts and 50 days of 25°C a year
On about 48 nights a year the air drops to 0°C or below, and on about 7 days it stays below freezing all day. About 50 days a year reach 25°C, and 14 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Savigny/Clairis: 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 Savigny/Clairis
Savigny/Clairis is 18 km south of Saint-Sérotin. Every figure on this page is the station’s, not a measurement in Saint-Sérotin itself.
| Station (Météo-France number) | Savigny/Clairis (89380001) |
| Distance from the town | 18 km south |
| Station altitude | 184 m |
| Town altitude (its center) | 179 m |
| Period | 1991–2020 |
| Nearest station of any kind | 13 km |
| Sunshine measured at | Melun, 54 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-Sérotin 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 Yonne.
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 |
|---|---|---|---|---|
| Saint-Sérotin | Savigny/Clairis | 25.6°C | 1.4°C | 732 mm |
| Pont-sur-Yonne 5.2 km | La Brosse-Mx | 26.4°C 0.8°C warmer | 2.0°C 0.6°C milder | 653 mm |
| Paron 9.8 km | Sens | 26.5°C 0.9°C warmer | 1.7°C about the same | 645 mm |
| Saint-Clément 11 km | Sens | 26.5°C 0.9°C warmer | 1.7°C about the same | 645 mm |
| Sens 11 km | Sens | 26.5°C 0.9°C warmer | 1.7°C about the same | 645 mm |
| Villeneuve-la-Guyard 13 km | La Brosse-Mx | 26.4°C 0.8°C warmer | 2.0°C 0.6°C milder | 653 mm |
| Cannes-Écluse 18 km | La Brosse-Mx | 26.4°C 0.8°C warmer | 2.0°C 0.6°C milder | 653 mm |
Saint-Sérotin weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Savigny/Clairis station; sunshine at Melun.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 6.3°C | 1.4°C | 3.8°C | 57 mm | 60 |
| February | 7.6°C | 1.2°C | 4.4°C | 54 mm | 83 |
| March | 11.7°C | 3.3°C | 7.5°C | 53 mm | 143 |
| April | 15.3°C | 5.1°C | 10.2°C | 57 mm | 188 |
| May | 19.0°C | 8.6°C | 13.8°C | 65 mm | 216 |
| June | 22.8°C | 11.8°C | 17.3°C | 56 mm | 226 |
| July | 25.6°C | 13.7°C | 19.7°C | 67 mm | 235 |
| August | 25.4°C | 13.7°C | 19.6°C | 57 mm | 225 |
| September | 21.0°C | 10.6°C | 15.8°C | 59 mm | 180 |
| October | 15.9°C | 8.1°C | 12.0°C | 71 mm | 119 |
| November | 10.1°C | 4.5°C | 7.3°C | 66 mm | 68 |
| December | 6.8°C | 2.0°C | 4.4°C | 71 mm | 54 |
| Year | 15.6°C | 7.0°C | 11.3°C | 732 mm | 1,798 |
Where Saint-Sérotin’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Savigny/Clairis, 18 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, Melun, 54 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 Yonne.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Saint-Sérotin’s climate
How warm does Saint-Sérotin get in summer?
July is the warmest month, with average highs of 25.6°C. About 50 days a year reach 25°C, fewer than 68% of mainland French towns, and about 14 reach 30°C.
How cold does Saint-Sérotin get in winter?
February nights average 1.2°C. The air drops to 0°C or below on about 48 nights a year, and about 7 days a year stay below freezing all day.
How much rain does Saint-Sérotin get?
About 732 mm a year, less than 58% of mainland French towns. December is the wettest month (71 mm) and March the driest (53 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Melun (54 km away), averages 1,798 hours of sunshine a year.
Are these figures for Saint-Sérotin itself?
No: they are the normals of the Météo-France station matched to Saint-Sérotin, Savigny/Clairis, 18 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 SAVIGNY/CLAIRIS, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Saint-Sérotin →
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.