Montpellier weather by month
Montpellier runs from about 7°C in December to 26°C in August, with October the wettest month at 152 mm.
warmest month
August
26°C
coolest month
December
7°C
wettest month
October
152 mm
worst air month
December
9 µg/m³
The whole year, month by month.
| Month | Avg temp | Rain | Sun | PM2.5 |
|---|---|---|---|---|
| January | 8°C | 60 mm | 199 h | 7 |
| February | 10°C | 38 mm | 224 h | 6 |
| March | 12°C | 146 mm | 270 h | 8 |
| April | 14°C | 80 mm | 315 h | 7 |
| May | 17°C | 136 mm | 342 h | 6 |
| June | 21°C | 60 mm | 383 h | 7 |
| July | 25°C | 36 mm | 414 h | 4 |
| August | 26°C | 8 mm | 392 h | 7 |
| September | 19°C | 134 mm | 301 h | 4 |
| October | 17°C | 152 mm | 217 h | 6 |
| November | 12°C | 103 mm | 224 h | 5 |
| December | 7°C | 7 mm | 223 h | 9 |
About 3,504 hours of sun a year. Roughly 97 rainy days a year.
These are long-run climate normals, not a forecast. A given year can sit well outside them. PM2.5 is a global model: near the coast it counts sea salt as fine particulate and reads high against ground stations, sometimes by a factor of two. Use the shape of the year, not the absolute number.
where these numbers come from
- · Temperature, rainfall and sunshine: ECMWF ERA5 reanalysis climate normals via Open-Meteo (CC BY 4.0), fetched once and stored.
- · PM2.5: Copernicus CAMS reanalysis, monthly means. Modelled, not station readings; near coasts CAMS counts sea salt as PM2.5 and reads high.
Last reviewed 2026-05-24. Full method, licences and the list of sources we rejected are on the methodology page.