Summer warmth: Saint-Aignan logs more 25-degree days than 88% of mainland French towns
January nights here settle around 1.7°C. Rain is light here, less than falls on 67% of mainland French towns. Wet weather is most frequent in May and least in July. If you like long walks, May, June, September and October offer highs of 20–26°C.
These are the figures of Météo-France’s Castelsarrasin station, 8.8 km north-east.
A year in Saint-Aignan at a glance
Each month’s typical high and low in °C, at the Castelsarrasin station.
What a year in Saint-Aignan 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 8.8 km north-east of Saint-Aignan. Every figure on this page is the station’s, not a measurement in Saint-Aignan itself.
| Station (Météo-France number) | Castelsarrasin (82033005) |
| Distance from the town | 8.8 km north-east |
| Station altitude | 73 m |
| Town altitude (its center) | 80 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 Saint-Aignan 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 |
|---|---|---|---|---|
| Saint-Aignan | Castelsarrasin | 29.0°C | 1.7°C | 699 mm |
| Castelsarrasin 4.8 km | same station | 29.0°C about the same | 1.7°C about the same | 699 mm |
| Moissac 10 km | same station | 29.0°C about the same | 1.7°C about the same | 699 mm |
| La Ville-Dieu-du-Temple 12 km | same station | 29.0°C about the same | 1.7°C about the same | 699 mm |
| Montech 15 km | Savenès | 28.2°C 0.8°C cooler | 1.8°C about the same | 705 mm |
| Montbeton 16 km | Montauban | 28.3°C 0.7°C cooler | 2.2°C 0.5°C milder | 710 mm |
| Beaumont-de-Lomagne 16 km | Sérignac | 28.0°C 1°C cooler | 2.9°C 1.2°C milder | 691 mm |
Saint-Aignan 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 Saint-Aignan’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Castelsarrasin, 8.8 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 Saint-Aignan’s climate
How warm does Saint-Aignan 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 Saint-Aignan 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 Saint-Aignan 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 Saint-Aignan itself?
No: they are the normals of the Météo-France station matched to Saint-Aignan, Castelsarrasin, 8.8 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 Saint-Aignan →
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.