expatwhy.

Annecy weather by month

Annecy runs from about 4°C in December to 22°C in August, with May the wettest month at 247 mm.

warmest month

August

22°C

coolest month

December

4°C

wettest month

May

247 mm

worst air month

March

14 µg/m³

The whole year, month by month.

Monthly climate normals for Annecy
MonthAvg tempRainSunPM2.5
January4°C147 mm167 h12
February7°C106 mm186 h9
March8°C142 mm223 h14
April10°C120 mm301 h10
May14°C247 mm309 h7
June18°C131 mm351 h7
July21°C147 mm399 h5
August22°C43 mm383 h8
September15°C201 mm249 h5
October14°C150 mm237 h10
November8°C85 mm222 h10
December4°C107 mm180 h13

About 3,207 hours of sun a year. Roughly 164 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.