La Bastide-de-Sérou sits near the top of mainland French towns for frosts
Expect July afternoons of about 26.4°C. By rainfall alone, it ranks wetter than 91% of mainland French towns. From frosty January to warm July, readings climb 28°C. Waterproofs come out on about 126 days a year, each with 1 mm of rain or more.
Figures from Météo-France’s La Bastide de S station, 3 km west.
A year in La Bastide-de-Sérou at a glance
Each month’s typical high and low in °C, at the La Bastide de S station.
What a year in La Bastide-de-Sérou feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at La Bastide de S.
About 1,091 mm of rain a year
May is the wettest month and July the driest. About 38 days a year bring 10 mm or more. 3rd wettest of 11 towns of 2,500+ in Ariège.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Saint-Girons
A frosty town: 85 frosts and 79 days of 25°C a year
On about 85 nights a year the air drops to 0°C or below, and on about 2 days it stays below freezing all day. About 79 days a year reach 25°C, and 26 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at La Bastide de S: 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 Bastide de S
La Bastide de S is 3 km west of La Bastide-de-Sérou. Every figure on this page is the station’s, not a measurement in La Bastide-de-Sérou itself.
| Station (Météo-France number) | La Bastide de S (09042003) |
| Distance from the town | 3 km west |
| Station altitude | 420 m |
| Town altitude (its center) | 420 m |
| Period | 1991–2020 |
| Sunshine measured at | Saint-Girons, 26 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 La Bastide-de-Sérou 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 Ariège.
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 |
|---|---|---|---|---|
| La Bastide-de-Sérou | La Bastide de S | 26.4°C | −1.1°C | 1,091 mm |
| Foix 16 km | same station | 26.4°C about the same | −1.1°C about the same | 1,091 mm |
| Varilhes 17 km | Saint-Ybars | 27.1°C 0.7°C warmer | 2.7°C 3.8°C milder | 797 mm |
| Saint-Jean-du-Falga 18 km | Saint-Ybars | 27.1°C 0.7°C warmer | 2.7°C 3.8°C milder | 797 mm |
| Pamiers 19 km | Saint-Ybars | 27.1°C 0.7°C warmer | 2.7°C 3.8°C milder | 797 mm |
| La Tour-du-Crieu 21 km | Saint-Ybars | 27.1°C 0.7°C warmer | 2.7°C 3.8°C milder | 797 mm |
| Saint-Girons 23 km | Saint-Girons | 25.5°C 0.9°C cooler | 0.5°C 1.6°C milder | 973 mm |
La Bastide-de-Sérou weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the La Bastide de S station; sunshine at Saint-Girons.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 10.3°C | −1.1°C | 4.6°C | 91 mm | 116 |
| February | 11.4°C | −0.6°C | 5.4°C | 79 mm | 129 |
| March | 14.7°C | 1.6°C | 8.2°C | 76 mm | 169 |
| April | 17.1°C | 4.0°C | 10.5°C | 111 mm | 171 |
| May | 20.5°C | 7.9°C | 14.2°C | 120 mm | 183 |
| June | 24.0°C | 11.5°C | 17.8°C | 96 mm | 193 |
| July | 26.4°C | 13.4°C | 19.9°C | 72 mm | 211 |
| August | 26.7°C | 13.1°C | 19.9°C | 79 mm | 209 |
| September | 23.4°C | 9.5°C | 16.5°C | 80 mm | 193 |
| October | 19.5°C | 6.6°C | 13.0°C | 90 mm | 157 |
| November | 13.7°C | 2.1°C | 7.9°C | 110 mm | 119 |
| December | 10.9°C | −0.6°C | 5.1°C | 88 mm | 113 |
| Year | 18.2°C | 5.6°C | 11.9°C | 1,091 mm | 1,964 |
Where La Bastide-de-Sérou’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for La Bastide de S, 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-Girons, 26 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 Ariège.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about La Bastide-de-Sérou’s climate
How warm does La Bastide-de-Sérou get in summer?
August is the warmest month, with average highs of 26.7°C. About 79 days a year reach 25°C, more than 71% of mainland French towns, and about 26 reach 30°C.
How cold does La Bastide-de-Sérou get in winter?
January nights average −1.1°C. The air drops to 0°C or below on about 85 nights a year, and about 2 days a year stay below freezing all day.
How much rain does La Bastide-de-Sérou get?
About 1,091 mm a year, more than 91% of mainland French towns. May is the wettest month (120 mm) and July the driest (72 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Saint-Girons (26 km away), averages 1,964 hours of sunshine a year.
Are these figures for La Bastide-de-Sérou itself?
No: they are the normals of the Météo-France station matched to La Bastide-de-Sérou, La Bastide de S, 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 LA BASTIDE DE S, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for La Bastide-de-Sérou →
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.