Thann sits near the top of mainland French towns for rain, with 1,309 mm a year
On a normal January night the air cools to about −1.6°C. By frosts alone, it ranks colder than 97% of mainland French towns. December is the wettest month, April the driest. Plan time outside from June to September, when highs sit at 21–26°C.
These are the figures of Météo-France’s Bits.-lès-Thann station, 3.4 km north-west.
A year in Thann at a glance
Each month’s typical high and low in °C, at the Bits.-lès-Thann station.
What a year in Thann feels like
Typical highs and lows by season and by month, from Météo-France’s 1991–2020 normals at Bits.-lès-Thann.
About 1,309 mm of rain a year
December is the wettest month and April the driest. About 47 days a year bring 10 mm or more. The wettest of 52 towns of 2,500+ in Haut-Rhin.
Rain by month
Millimeters
A frosty town: 92 frosts and 60 days of 25°C a year
On about 92 nights a year the air drops to 0°C or below, and on about 13 days it stays below freezing all day. About 60 days a year reach 25°C, and 16 reach 30°C.
Day counts are Météo-France’s 1991–2020 normals at Bits.-lès-Thann: 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 Bits.-lès-Thann
Bits.-lès-Thann is 3.4 km north-west of Thann. Every figure on this page is the station’s, not a measurement in Thann itself.
| Station (Météo-France number) | Bits.-lès-Thann (68040001) |
| Distance from the town | 3.4 km north-west |
| Station altitude | 395 m |
| Town altitude (its center) | 341 m |
| Period | 1991–2020 |
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 Thann 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 Haut-Rhin.
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 |
|---|---|---|---|---|
| Thann | Bits.-lès-Thann | 25.6°C | −1.6°C | 1,309 mm |
| Vieux-Thann 1.5 km | same station | 25.6°C about the same | −1.6°C about the same | 1,309 mm |
| Cernay 5.4 km | Guebwiller | 26.0°C about the same | −0.6°C 1°C milder | 920 mm |
| Masevaux-Niederbruck 9.2 km | same station | 25.6°C about the same | −1.6°C about the same | 1,309 mm |
| Wittelsheim 10 km | Mulhouse | 26.4°C 0.8°C warmer | −0.6°C 1°C milder | 748 mm |
| Staffelfelden 12 km | Mulhouse | 26.4°C 0.8°C warmer | −0.6°C 1°C milder | 748 mm |
| Soultz-Haut-Rhin 13 km | Guebwiller | 26.0°C about the same | −0.6°C 1°C milder | 920 mm |
Thann weather by month
Average daily high and low, mean temperature and rain, 1991–2020, at the Bits.-lès-Thann station.
| Month | High | Low | Mean | Rain |
|---|---|---|---|---|
| January | 4.8°C | −1.6°C | 1.6°C | 150 mm |
| February | 6.6°C | −1.7°C | 2.4°C | 121 mm |
| March | 11.3°C | 0.4°C | 5.9°C | 111 mm |
| April | 15.8°C | 3.2°C | 9.5°C | 78 mm |
| May | 19.8°C | 7.2°C | 13.5°C | 98 mm |
| June | 23.6°C | 10.3°C | 17.0°C | 91 mm |
| July | 25.6°C | 12.0°C | 18.8°C | 89 mm |
| August | 25.3°C | 11.7°C | 18.5°C | 89 mm |
| September | 20.8°C | 8.5°C | 14.6°C | 82 mm |
| October | 15.4°C | 5.6°C | 10.5°C | 115 mm |
| November | 9.0°C | 1.8°C | 5.4°C | 113 mm |
| December | 5.4°C | −0.7°C | 2.3°C | 171 mm |
| Year | 15.3°C | 4.7°C | 10.0°C | 1,309 mm |
Where Thann’s numbers come from
Averages over 30 years, not a forecast.
- Temperature, rain and day counts: Météo-France’s fiche climatologique for Bits.-lès-Thann, 3.4 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.
- Comparisons: every town of 2,500 or more in mainland France, read the same way; the dots are the towns of 2,500+ in Haut-Rhin.
Météo-France fiches climatologiques · IGN RGE ALTI®. Licence Ouverte 2.0.
Questions about Thann’s climate
How warm does Thann get in summer?
July is the warmest month, with average highs of 25.6°C. About 60 days a year reach 25°C, fewer than 51% of mainland French towns, and about 16 reach 30°C.
How cold does Thann get in winter?
February nights average −1.7°C. The air drops to 0°C or below on about 92 nights a year, and about 13 days a year stay below freezing all day.
How much rain does Thann get?
About 1,309 mm a year, more than 98% of mainland French towns. December is the wettest month (171 mm) and April the driest (78 mm).
Are these figures for Thann itself?
No: they are the normals of the Météo-France station matched to Thann, Bits.-lès-Thann, 3.4 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 BITS.-LES-THANN, edited 15/10/2026); altitude: IGN, RGE ALTI®. Licence Ouverte 2.0. Today’s forecast for Thann →
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.