Gratens is drier than 92% of mainland French towns: 620 mm of rain a year
On a normal January night the air cools to about 2.0°C. About 91 days a year reach 25°C, more than in 83% of mainland French towns. Of all months, May brings the most rain and September the least. Homes need heating from November to March, the months averaging under 10°C.
Figures from Météo-France’s Muret-Lherm station, 18 km north-east.
A year in Gratens at a glance
Each month’s typical high and low in °C, at the Muret-Lherm station.
What a year in Gratens feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Muret-Lherm.
About 620 mm of rain a year
May is the wettest month and September the driest. About 16 days a year bring 10 mm or more. 77th wettest of 96 towns of 2,500+ in Haute-Garonne.
Rain by month
Millimeters
Sunshine by month
Hours of sunshine at Saint-Girons
39 frosts and 91 days of 25°C a year
On about 39 nights a year the air drops to 0°C or below, and on about 2 days it stays below freezing all day. About 91 days a year reach 25°C, and 33 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Muret-Lherm: 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 Muret-Lherm
Muret-Lherm is 18 km north-east of Gratens. Every figure on this page is the station’s, not a measurement in Gratens itself.
| Station (Météo-France number) | Muret-Lherm (31299001) |
| Distance from the town | 18 km north-east |
| Station altitude | 189 m |
| Town altitude (its center) | 240 m |
| Period | 1996–2020 (the station’s own record) |
| Nearest station of any kind | 15 km |
| Sunshine measured at | Saint-Girons, 36 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 Gratens 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 Haute-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 |
|---|---|---|---|---|
| Gratens | Muret-Lherm | 28.0°C | 2.0°C | 620 mm |
| Bérat 7.4 km | same station | 28.0°C about the same | 2.0°C about the same | 620 mm |
| Carbonne 8.3 km | same station | 28.0°C about the same | 2.0°C about the same | 620 mm |
| Rieux-Volvestre 9.6 km | same station | 28.0°C about the same | 2.0°C about the same | 620 mm |
| Longages 9.7 km | same station | 28.0°C about the same | 2.0°C about the same | 620 mm |
| Rieumes 9.9 km | same station | 28.0°C about the same | 2.0°C about the same | 620 mm |
| Noé 13 km | same station | 28.0°C about the same | 2.0°C about the same | 620 mm |
Gratens weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Muret-Lherm station; sunshine at Saint-Girons.
| Month | High | Low | Mean | Rain | Sun (hours) |
|---|---|---|---|---|---|
| January | 9.8°C | 2.0°C | 5.9°C | 58 mm | 116 |
| February | 11.3°C | 2.1°C | 6.7°C | 42 mm | 129 |
| March | 15.0°C | 4.4°C | 9.7°C | 47 mm | 169 |
| April | 17.7°C | 7.1°C | 12.4°C | 63 mm | 171 |
| May | 21.2°C | 10.6°C | 15.9°C | 74 mm | 183 |
| June | 25.7°C | 14.2°C | 19.9°C | 52 mm | 193 |
| July | 28.0°C | 15.7°C | 21.8°C | 41 mm | 211 |
| August | 28.5°C | 15.6°C | 22.0°C | 43 mm | 209 |
| September | 25.3°C | 12.5°C | 18.9°C | 41 mm | 193 |
| October | 20.2°C | 9.6°C | 14.9°C | 48 mm | 157 |
| November | 13.6°C | 4.9°C | 9.3°C | 60 mm | 119 |
| December | 10.4°C | 2.3°C | 6.4°C | 52 mm | 113 |
| Year | 18.9°C | 8.4°C | 13.6°C | 620 mm | 1,964 |
Where Gratens’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Muret-Lherm, 18 km away: statistics for 1991–2020 (the station’s own years, 1996–2020, where its record is shorter).
- 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, 36 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 Haute-Garonne.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Gratens’s climate
How warm does Gratens get in summer?
August is the warmest month, with average highs of 28.5°C. About 91 days a year reach 25°C, more than 83% of mainland French towns, and about 33 reach 30°C.
How cold does Gratens get in winter?
January nights average 2.0°C. The air drops to 0°C or below on about 39 nights a year, and about 2 days a year stay below freezing all day.
How much rain does Gratens get?
About 620 mm a year, less than 92% of mainland French towns. May is the wettest month (74 mm) and September the driest (41 mm).
How sunny is it?
The nearest Météo-France station that records sunshine, Saint-Girons (36 km away), averages 1,964 hours of sunshine a year.
Are these figures for Gratens itself?
No: they are the normals of the Météo-France station matched to Gratens, Muret-Lherm, 18 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 MURET-LHERM, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Gratens →
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.