expatwhy.

Bordeaux weather by month

Bordeaux runs from about 7°C in January to 21°C in August, with March the wettest month at 177 mm.

warmest month

August

21°C

coolest month

January

7°C

wettest month

March

177 mm

worst air month

December

12 µg/m³

The whole year, month by month.

Monthly climate normals for Bordeaux
MonthAvg tempRainSunPM2.5
January7°C50 mm146 h10
February10°C136 mm138 h8
March11°C177 mm243 h10
April13°C56 mm296 h7
May15°C159 mm299 h6
June19°C133 mm308 h8
July21°C49 mm365 h5
August21°C34 mm349 h8
September17°C128 mm270 h6
October16°C121 mm204 h7
November11°C62 mm174 h8
December8°C72 mm156 h12

About 2,948 hours of sun a year. Roughly 118 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 2026-05-23. Full method, licences and the list of sources we rejected are on the methodology page.