More rain falls on Marly-sous-Issy than on 79% of mainland French towns: 916 mm a year
January mornings start at about 1.2°C. About 51 nights a year bring a frost, more than in 70% of mainland French towns. Winter and summer sit 26°C apart. Windscreens need scraping on about 51 mornings a year, the nights the air drops below 0°C.
Figures from Météo-France’s Cressy station, 7.3 km west.
A year in Marly-sous-Issy at a glance
Each month’s typical high and low in °C, at the Cressy station.
What a year in Marly-sous-Issy feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Cressy.
About 916 mm of rain a year
November is the wettest month and March the driest. About 28 days a year bring 10 mm or more. 12th wettest of 32 towns of 2,500+ in Saône-et-Loire.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Saint-Yan
A frosty town: 51 frosts and 70 days of 25°C a year
On about 51 nights a year the air drops to 0°C or below, and on about 6 days it stays below freezing all day. About 70 days a year reach 25°C, and 24 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Cressy: 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 Cressy
Cressy is 7.3 km west of Marly-sous-Issy. Every figure on this page is the station’s, not a measurement in Marly-sous-Issy itself.
| Station (Météo-France number) | Cressy (71152001) |
| Distance from the town | 7.3 km west |
| Station altitude | 287 m |
| Town altitude (its center) | 307 m |
| Period | 1991–2020 |
| Sunshine measured at | Saint-Yan, 35 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 Marly-sous-Issy 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 Saône-et-Loire.
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 |
|---|---|---|---|---|
| Marly-sous-Issy | Cressy | 26.8°C | 1.2°C | 916 mm |
| Bourbon-Lancy 17 km | Diou | 27.2°C about the same | 0.9°C about the same | 819 mm |
| Gueugnon 17 km | Saint-Yan | 26.7°C about the same | 0.2°C 1°C colder | 772 mm |
| Digoin 27 km | Saint-Yan | 26.7°C about the same | 0.2°C 1°C colder | 772 mm |
| Sanvignes-les-Mines 29 km | Saint-Symphorien-de-Marmagne | 26.3°C 0.5°C cooler | 0.0°C 1.2°C colder | 974 mm |
Marly-sous-Issy weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Cressy station; sunshine at Saint-Yan.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 6.9°C | 1.2°C | 4.1°C | 77 mm | 65 |
| February | 8.4°C | 1.1°C | 4.8°C | 63 mm | 89 |
| March | 13.0°C | 3.5°C | 8.2°C | 63 mm | 147 |
| April | 16.4°C | 5.6°C | 11.0°C | 72 mm | 168 |
| May | 20.3°C | 9.1°C | 14.7°C | 88 mm | 198 |
| June | 24.3°C | 12.5°C | 18.4°C | 72 mm | 227 |
| July | 26.8°C | 14.3°C | 20.6°C | 69 mm | 248 |
| August | 26.8°C | 14.3°C | 20.6°C | 71 mm | 230 |
| September | 22.2°C | 10.9°C | 16.5°C | 71 mm | 167 |
| October | 17.0°C | 8.4°C | 12.7°C | 86 mm | 112 |
| November | 10.9°C | 4.4°C | 7.7°C | 99 mm | 66 |
| December | 7.4°C | 1.9°C | 4.7°C | 87 mm | 52 |
| Year | 16.7°C | 7.3°C | 12.0°C | 916 mm | 1,768 |
Where Marly-sous-Issy’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Cressy, 7.3 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, Saint-Yan, 35 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 Saône-et-Loire.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Marly-sous-Issy’s climate
How warm does Marly-sous-Issy get in summer?
July is the warmest month, with average highs of 26.8°C. About 70 days a year reach 25°C, more than 65% of mainland French towns, and about 24 reach 30°C.
How cold does Marly-sous-Issy get in winter?
February nights average 1.1°C. The air drops to 0°C or below on about 51 nights a year, and about 6 days a year stay below freezing all day.
How much rain does Marly-sous-Issy get?
About 916 mm a year, more than 79% of mainland French towns. November is the wettest month (99 mm) and March the driest (63 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Saint-Yan (35 km away), averages 1,768 hours of sunshine a year.
Are these figures for Marly-sous-Issy itself?
No: they are the normals of the Météo-France station matched to Marly-sous-Issy, Cressy, 7.3 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 CRESSY, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Marly-sous-Issy →
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.