Saint-Denis is among the wettest of mainland French towns: 1,179 mm of rain a year
Deep winter brings January lows near 1.1°C. In July, afternoons here are cooler than in 75% of mainland French towns. Temperatures cover 24°C across the year, low to high. Homes need heating from November to April, the months averaging under 10°C.
These are the figures of Météo-France’s Mazamet station, 16 km north-east.
A year in Saint-Denis at a glance
Each month’s typical high and low in °C, at the Mazamet station.
What a year in Saint-Denis feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Mazamet.
About 1,179 mm of rain a year
November is the wettest month and August the driest. About 40 days a year bring 10 mm or more. The wettest of 23 towns of 2,500+ in Aude.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Carcassonne
46 frosts and 53 days of 25°C a year
On about 46 nights a year the air drops to 0°C or below, and on about 7 days it stays below freezing all day. About 53 days a year reach 25°C, and 15 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Mazamet: 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 Mazamet
Mazamet is 16 km north-east of Saint-Denis. Every figure on this page is the station’s, not a measurement in Saint-Denis itself.
| Station (Météo-France number) | Mazamet (81163001) |
| Distance from the town | 16 km north-east |
| Station altitude | 682 m |
| Town altitude (its center) | 513 m |
| Period | 1991–2020 |
| Nearest station of any kind | 8.1 km |
| Sunshine measured at | Carcassonne, 17 km away |
Saint-Denis sits 169 m lower than the station. Air usually warms by about 0.65°C every 100 m you go down, so expect Saint-Denis to run about 1.1°C warmer than these figures.
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-Denis 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 Aude.
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-Denis | Mazamet | 24.8°C | 1.1°C | 1,179 mm |
| Pennautier 15 km | Carcassonne | 28.8°C 4°C warmer | 3.5°C 2.4°C milder | 665 mm |
| Bram 15 km | Carcassonne | 28.8°C 4°C warmer | 3.5°C 2.4°C milder | 665 mm |
| Villemoustaussou 16 km | Carcassonne | 28.8°C 4°C warmer | 3.5°C 2.4°C milder | 665 mm |
| Sorèze 17 km | Dourgne | 28.3°C 3.5°C warmer | 2.5°C 1.4°C milder | 896 mm |
| Conques-sur-Orbiel 18 km | Carcassonne | 28.8°C 4°C warmer | 3.5°C 2.4°C milder | 665 mm |
| Aiguefonde 19 km | Dourgne | 28.3°C 3.5°C warmer | 2.5°C 1.4°C milder | 896 mm |
Saint-Denis weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Mazamet station; sunshine at Carcassonne.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 6.8°C | 1.1°C | 4.0°C | 123 mm | 95 |
| February | 7.8°C | 1.0°C | 4.4°C | 95 mm | 122 |
| March | 11.0°C | 3.1°C | 7.1°C | 101 mm | 174 |
| April | 13.9°C | 5.4°C | 9.6°C | 110 mm | 192 |
| May | 17.8°C | 9.0°C | 13.4°C | 114 mm | 220 |
| June | 22.1°C | 12.3°C | 17.2°C | 82 mm | 248 |
| July | 24.8°C | 14.2°C | 19.5°C | 62 mm | 283 |
| August | 25.3°C | 14.4°C | 19.8°C | 59 mm | 268 |
| September | 20.9°C | 11.4°C | 16.1°C | 82 mm | 216 |
| October | 16.0°C | 8.7°C | 12.3°C | 105 mm | 152 |
| November | 10.6°C | 4.7°C | 7.7°C | 127 mm | 105 |
| December | 8.1°C | 2.3°C | 5.2°C | 120 mm | 95 |
| Year | 15.4°C | 7.3°C | 11.4°C | 1,179 mm | 2,170 |
Where Saint-Denis’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Mazamet, 16 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, Carcassonne, 17 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 Aude.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Saint-Denis’s climate
How warm does Saint-Denis get in summer?
August is the warmest month, with average highs of 25.3°C. About 53 days a year reach 25°C, fewer than 65% of mainland French towns, and about 15 reach 30°C.
How cold does Saint-Denis get in winter?
February nights average 1.0°C. The air drops to 0°C or below on about 46 nights a year, and about 7 days a year stay below freezing all day.
How much rain does Saint-Denis get?
About 1,179 mm a year, more than 96% of mainland French towns. November is the wettest month (127 mm) and August the driest (59 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Carcassonne (17 km away), averages 2,170 hours of sunshine a year.
Are these figures for Saint-Denis itself?
No: they are the normals of the Météo-France station matched to Saint-Denis, Mazamet, 16 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 MAZAMET, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Saint-Denis →
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.