More days reach 25 degrees in Moissac than in 88% of mainland French towns
Nights in January average 1.7°C. Its yearly rainfall falls short of 67% of mainland French towns. From frosty January to warm July, readings climb 28°C. Gritters and ice scrapers earn their keep on roughly 45 nights a year below 0°C.
Figures from Météo-France’s Castelsarrasin station, 3.8 km south-east.
A year in Moissac at a glance
Each month’s typical high and low in °C, at the Castelsarrasin station.
What a year in Moissac feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Castelsarrasin.
About 699 mm of rain a year
May is the wettest month and July the driest. About 20 days a year bring 10 mm or more. 14th wettest of 17 towns of 2,500+ in Tarn-et-Garonne.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Montauban
45 frosts and 100 days of 25°C a year
On about 45 nights a year the air drops to 0°C or below, and on about 1 days it stays below freezing all day. About 100 days a year reach 25°C, and 40 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Castelsarrasin: 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 Castelsarrasin
Castelsarrasin is 3.8 km south-east of Moissac. Every figure on this page is the station’s, not a measurement in Moissac itself.
| Station (Météo-France number) | Castelsarrasin (82033005) |
| Distance from the town | 3.8 km south-east |
| Station altitude | 73 m |
| Town altitude (its center) | 126 m |
| Period | 1991–2020 |
| Sunshine measured at | Montauban, 24 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 Moissac 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 Tarn-et-Garonne.
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 |
|---|---|---|---|---|
| Moissac | Castelsarrasin | 29.0°C | 1.7°C | 699 mm |
| Castelsarrasin 7.5 km | same station | 29.0°C about the same | 1.7°C about the same | 699 mm |
| Lafrançaise 12 km | Durfort | 28.9°C about the same | 2.6°C 0.9°C milder | 760 mm |
| La Ville-Dieu-du-Temple 13 km | same station | 29.0°C about the same | 1.7°C about the same | 699 mm |
| Valence 16 km | Valence | 29.5°C 0.5°C warmer | 2.6°C 0.9°C milder | 747 mm |
| Montbeton 18 km | Montauban | 28.3°C 0.7°C cooler | 2.2°C 0.5°C milder | 710 mm |
| Montech 20 km | Savenès | 28.2°C 0.8°C cooler | 1.8°C about the same | 705 mm |
Moissac weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Castelsarrasin station; sunshine at Montauban.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 9.5°C | 1.7°C | 5.6°C | 62 mm | 84 |
| February | 11.6°C | 1.4°C | 6.5°C | 49 mm | 120 |
| March | 15.6°C | 3.8°C | 9.7°C | 53 mm | 176 |
| April | 18.7°C | 6.3°C | 12.5°C | 70 mm | 190 |
| May | 22.5°C | 9.8°C | 16.2°C | 73 mm | 221 |
| June | 26.4°C | 13.5°C | 19.9°C | 59 mm | 243 |
| July | 29.0°C | 15.3°C | 22.1°C | 44 mm | 270 |
| August | 29.0°C | 15.2°C | 22.1°C | 50 mm | 260 |
| September | 25.3°C | 11.6°C | 18.4°C | 54 mm | 214 |
| October | 20.1°C | 8.7°C | 14.4°C | 55 mm | 154 |
| November | 13.7°C | 4.7°C | 9.2°C | 63 mm | 93 |
| December | 10.0°C | 2.3°C | 6.2°C | 67 mm | 81 |
| Year | 19.3°C | 7.9°C | 13.6°C | 699 mm | 2,104 |
Where Moissac’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Castelsarrasin, 3.8 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, Montauban, 24 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 Tarn-et-Garonne.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Moissac’s climate
How warm does Moissac get in summer?
July is the warmest month, with average highs of 29.0°C. About 100 days a year reach 25°C, more than 88% of mainland French towns, and about 40 reach 30°C.
How cold does Moissac get in winter?
February nights average 1.4°C. The air drops to 0°C or below on about 45 nights a year, and about 1 days a year stay below freezing all day.
How much rain does Moissac get?
About 699 mm a year, less than 67% of mainland French towns. May is the wettest month (73 mm) and July the driest (44 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Montauban (24 km away), averages 2,104 hours of sunshine a year.
Are these figures for Moissac itself?
No: they are the normals of the Météo-France station matched to Moissac, Castelsarrasin, 3.8 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 CASTELSARRASIN, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Moissac →
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.