The yearly rainfall averages 1055 mm; mostly it rains in May, June, and July. The autumn months are relatively dry.
Maribor offers many pleasant, sunny days; on average we have some 266 sun-filled days in a year. There is not much fog in Maribor, but with heavy humidity and cloudiness on the increase, fog does tend to settle on the city, mainly in the months of November and December. Maribor receives mostly northwestern, southeastern, northern, and southern winds. During the night, most frequently, the northwestern wind blows from the Drava valley; at daytime it is the southeastern wind. These winds bring to the city the clear mountain air. They clear the air above the city, wich from time to time can be very badly polluted by industry. Maribor, in general, is very well protected against unpleasant biting winds, as well as against floods.