Grignasco Weather & Climate: Best Time to Visit

Depending on the time of the year, temperatures range from comfortable to chilly in Grignasco. Average daytime temperatures reach a comfortable 27°C (81°F) in July. In January, the coolest month of the year, temperatures drop to a chilly 7°C (45°F).

At night, temperatures range from around 17°C (63°F) in July to -1°C (30°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

Grignasco has a relatively rain/snowy climate with high precipitation levels, averaging 2103 mm (83 in) of rain/snowfall annually. Grignasco can be quite wet during October, receiving approximately 236 mm (9.3 in) of precipitation over 12 rainy days.

In contrast, during the driest month (January), you will experience much drier conditions, with 86 mm (3.4 in) of precipitation spread across 11 rainy days. For more details, please visit our Grignasco Precipitation page.

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

The average number of days each month with precipitation

Grignasco can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 9.5 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 2.3 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is high throughout the year in Grignasco.

The city experiences its highest humidity in January, reaching 86%. In March, the humidity drops to its lowest level at 71%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year