Less rain falls on Pont-sur-Yonne than on 82% of mainland French towns: 653 mm a year
July afternoons average 26.4°C. From frosty January to warm July, readings climb 25°C. The outdoor season runs from May to September, with highs of 20–26°C.
These are the figures of Météo-France’s La Brosse-Mx station, 15 km north-west.
A year in Pont-sur-Yonne at a glance
Each month’s typical high and low in °C, at the La Brosse-Mx station.
What a year in Pont-sur-Yonne feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at La Brosse-Mx.
About 653 mm of rain a year
October is the wettest month and March the driest. About 16 days a year bring 10 mm or more. 14th wettest of 19 towns of 2,500+ in Yonne.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Melun
42 frosts and 59 days of 25°C a year
On about 42 nights a year the air drops to 0°C or below, and on about 5 days it stays below freezing all day. About 59 days a year reach 25°C, and 17 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at La Brosse-Mx: 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 La Brosse-Mx
La Brosse-Mx is 15 km north-west of Pont-sur-Yonne. Every figure on this page is the station’s, not a measurement in Pont-sur-Yonne itself.
| Station (Météo-France number) | La Brosse-Mx (77054001) |
| Distance from the town | 15 km north-west |
| Station altitude | 77 m |
| Town altitude (its center) | 97 m |
| Period | 1991–2020 |
| Sunshine measured at | Melun, 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 Pont-sur-Yonne 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. 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 |
|---|---|---|---|---|
| Pont-sur-Yonne | La Brosse-Mx | 26.4°C | 2.0°C | 653 mm |
| Saint-Clément 10 km | Sens | 26.5°C about the same | 1.7°C about the same | 645 mm |
| Paron 12 km | Sens | 26.5°C about the same | 1.7°C about the same | 645 mm |
| Sens 12 km | Sens | 26.5°C about the same | 1.7°C about the same | 645 mm |
| Villeneuve-la-Guyard 12 km | same station | 26.4°C about the same | 2.0°C about the same | 653 mm |
| Cannes-Écluse 18 km | same station | 26.4°C about the same | 2.0°C about the same | 653 mm |
| Saint-Germain-Laval 21 km | same station | 26.4°C about the same | 2.0°C about the same | 653 mm |
Pont-sur-Yonne weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the La Brosse-Mx station; sunshine at Melun.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 7.0°C | 2.0°C | 4.5°C | 51 mm | 60 |
| February | 8.3°C | 1.8°C | 5.0°C | 48 mm | 83 |
| March | 12.6°C | 3.7°C | 8.1°C | 48 mm | 143 |
| April | 16.3°C | 5.6°C | 10.9°C | 52 mm | 188 |
| May | 20.0°C | 9.2°C | 14.6°C | 60 mm | 216 |
| June | 23.6°C | 12.3°C | 18.0°C | 53 mm | 226 |
| July | 26.4°C | 14.4°C | 20.4°C | 52 mm | 235 |
| August | 26.1°C | 14.2°C | 20.2°C | 52 mm | 225 |
| September | 21.7°C | 11.1°C | 16.4°C | 51 mm | 180 |
| October | 16.6°C | 8.5°C | 12.5°C | 63 mm | 119 |
| November | 10.7°C | 4.9°C | 7.8°C | 60 mm | 68 |
| December | 7.5°C | 2.6°C | 5.1°C | 63 mm | 54 |
| Year | 16.4°C | 7.5°C | 12.0°C | 653 mm | 1,798 |
Where Pont-sur-Yonne’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for La Brosse-Mx, 15 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, 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 Yonne.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Pont-sur-Yonne’s climate
How warm does Pont-sur-Yonne get in summer?
July is the warmest month, with average highs of 26.4°C. About 59 days a year reach 25°C, fewer than 53% of mainland French towns, and about 17 reach 30°C.
How cold does Pont-sur-Yonne get in winter?
February nights average 1.8°C. The air drops to 0°C or below on about 42 nights a year, and about 5 days a year stay below freezing all day.
How much rain does Pont-sur-Yonne get?
About 653 mm a year, less than 82% of mainland French towns. October is the wettest month (63 mm) and March the driest (48 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Melun (53 km away), averages 1,798 hours of sunshine a year.
Are these figures for Pont-sur-Yonne itself?
No: they are the normals of the Météo-France station matched to Pont-sur-Yonne, La Brosse-Mx, 15 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 LA BROSSE-MX, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Pont-sur-Yonne →
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.