Chiasso Weather & Climate: Best Time to Visit

In Chiasso, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a comfortable 28°C (82°F) in July to a chilly 7°C (45°F) in January.

Nighttime temperatures range from 18°C (64°F) in July to 0°C (32°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Chiasso experiences significant rain/snowfall throughout the year, averaging 1571 mm (62 in) of precipitation annually. The seasons in Chiasso bring significant changes in precipitation. The wettest month, November, receives heavy rainfall, with an average of 176 mm (6.9 in) of precipitation. This rainfall is distributed across 13 rainy days.

In contrast, the driest month, January, experiences much less rainfall, totaling 67 mm (2.6 in) over 11 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Chiasso Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

In Chiasso, summer days are longer and more sunny, with daily sunshine hours peaking at 9.5 hours in July. As the darker season arrives, the brightness of the sun becomes less. January sees a soft sun for only 1.9 hours per average day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in Chiasso.

The city experiences its highest humidity in December, reaching 86%. In March, the humidity drops to its lowest level at 68%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year