Castano Primo Weather & Climate: Best Time to Visit
Average temperatures, rainfall, sunshine and the best time to visit Castano Primo.
Climate overview of Castano Primo
The climate in Castano Primo, Italy, is marked by large temperature swings across the seasons, ranging from 30°C (86°F) in July to 8°C (46°F) in January.
The city has a wet climate, receiving around 1378 mm (54 in) of rain/snowfall per year. Despite the high annual total, it has very warm summers and cold winters. November is the wettest month. The sunniest month is July, with 9.5 hours of sunshine per day on average.
Castano Primo Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Castano Primo - and find the best time to visit.
Monthly Temperature in Castano Primo
In Castano Primo, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a very warm 30°C (86°F) in July to a chilly 8°C (46°F) in January.
Nighttime temperatures range from 20°C (68°F) in July to 1°C (34°F) in January.
Check out our detailed temperature page for more information.
Temperature ranges by month
Rainfall in Castano Primo
Castano Primo experiences significant rain/snowfall throughout the year, averaging 1378 mm (54 in) of precipitation annually. The seasons in Castano Primo bring significant changes in precipitation. The wettest month, November, receives heavy rainfall, with an average of 170 mm (6.7 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 10 rainy days. These distinct seasonal differences provide diverse experiences throughout the year. For more details, please visit our Castano Primo Precipitation page.
The mean monthly precipitation over the year, including rain, hail, and snow
The average number of days each month with precipitation
Sunshine Hours in Castano Primo
In Castano Primo, 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. December sees a soft sun for only 2.3 hours per average day.
Visit our detailed sunshine hours page for more information.
Monthly hours of sunshine
Daily hours of sunshine
Daily percentage of sunshine
Humidity in Castano Primo by Month
The relative humidity is high throughout the year in Castano Primo.
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
Best Time to Visit Castano Primo
Monthly ratings reflect general weather comfort, based on daytime temperature and rainfall. Swimming and winter conditions are highlighted separately where relevant.
- Best overall: May, June and September
- Warmest weather: July and August
- Most sunshine: July
- Seasonal pattern: Very warm summers and cold winters
Frequently asked questions about the climate in Castano Primo
What is the best time to visit Castano Primo?
May, June and September typically offer the most optimal weather in Castano Primo. In contrast, January, November and December tend to have less optimal conditions. Castano Primo has very warm summers and cold winters.
What temperatures can I expect in Castano Primo?
Daytime highs range from 8°C (46°F) in January to 30°C (86°F) in July. Nighttime lows range from 1°C (34°F) to 20°C (68°F). Temperatures vary considerably through the year.
How much rain does Castano Primo get?
Annual rainfall is around 1378 mm (54 in). November is the wettest month with 170 mm (6.7 in), while January is the driest with 67 mm (2.6 in).
How sunny is Castano Primo?
Castano Primo receives around 1,974 hours of sunshine per year. July is the sunniest month with 285 hours, while December is the cloudiest with just 68 hours.
Castano Primo 3-Day Forecast
Castano Primo on the map
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