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Castano Primo Weather and Climate: A Comprehensive Guide

The climate in Castano Primo is marked by big temperature swings throughout the year. Temperatures range from very warm during the warmest months to cold in the cooler months. It also has a relatively rain/snowy climate with high levels of precipitation. Now, let’s break down all the climate details for a clearer picture.

Average maximum day and minimum night temperature

In Castano Primo, temperatures differ significantly between summer and winter months. On average, daytime temperatures range from a very warm 30°C in July to a chilly 8°C in January.

Nighttime temperatures can drop, with average lows reaching 1°C in January. Check out our detailed temperature page for more information.

Temperature ranges by month

Precipitation and rainy days

Castano Primo experiences significant rain/snowfall throughout the year, averaging 1378 mm 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 of precipitation. This rainfall is distributed across 13 rainy days.

In contrast, the driest month, January, experiences much less rainfall, totaling 67 mm 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

Sunshine over the year

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

Data from: Milan, Italy (7 KM, 4 Miles).

Daily hours of sunshine

Data from: Milan, Italy (7 KM, 4 Miles).

Forecast for Castano Primo

Sun   Dec 22
8°C | -1°C
NW 2 m/s
0.5 mm
broken clouds and  chance of slight rain

broken clouds and chance of slight rain

Mon   Dec 23
10°C | -1°C
W 3 m/s
almost clear and no rain

almost clear and no rain

Tue   Dec 24
11°C | -1°C
N 5 m/s
almost clear and no rain

almost clear and no rain

The best time of year to visit Castano Primo in Italy

During the months of May and September you are most likely to experience good weather with pleasant average temperatures that fall between 20°C and 26°C.

Other facts from our historical weather data:
  • When is summer in Castano Primo?
    The hottest season / summer takes place in June, July, August and September.
  • Which months have the greatest rainfall in Castano Primo?
    Most rainfall (rainy season) is seen in October and November.
  • Which is the warmest month in Castano Primo?
    July has an average maximum temperature of 30°C and is the warmest month of the year.
  • Which is the coldest month in Castano Primo?
    The coldest month is January with an average maximum temperature of 8°C.
  • Which is the wettest month in Castano Primo?
    November tops the wettest month list with 170 mm of rainfall.
  • Which is the driest month in Castano Primo?
    January is the driest month with 67 mm of precipitation.
  • Which is the sunniest month in Castano Primo?
    July is the sunniest month with an average of 285 hours of sunshine.

  • No idea where to travel to this year? We have a tool that recommends destinations based on your ideal conditions. Find out where to go with our weather planner.