The climate in Belgrade is moderate continental, with four seasons. Autumn lasts longer than spring, with longer sunny and warm periods.
The two weeks of belated summer in October, particularly enjoyed by Belgraders, are called St. Martin’s Summer (“miholjsko leto”). The winters are not particularly harsh. There are 21 days on average with temperatures below zero degrees centigrade during the winter. January is the coldest month, with average temperatures of 0.4 °C. Springs are brief and rainy, with summer arriving suddenly. The hottest months are July (21.7 °C) and August (21.3 °C).
Belgrade and its surroundings experience an average of 684 mm of rainfall annually, and umbrellas are mostly in use during May and June. Sunlight is most plentiful in July and August with around 10 hours per day, while December and January are known to be the cloudiest. Snow is present in Belgrade for an average of 27 days per year.
The košava, a strong and cold south-easterly and easterly wind arising in the Carpathians and bringing cold and dry weather to Belgrade is a true climatic attraction of Belgrade. During the autumn and winter, košava regularly ventilates Belgraders. It can reach speeds of up to 130 km/h and put a strong chill to the bones. It came into ill repute because of the innumerable umbrellas it snatched or broke.