Winters in Cernusco sul Naviglio are typically cool and variable, with temperatures often dropping below freezing and occasionally rising into the mid-teens. Spring arrives gradually, with March and April seeing a steady increase in temperature, but still experiencing occasional chilly days. Summer is mild and pleasant, with high temperatures rarely exceeding 33°C, while autumn brings a return to cooler conditions, although not as cold as winter. The coldest months are January and December, while the warmest month is June, when average highs reach 21°C.