With a population of around 3,800, Kosmonosy sits in Central Bohemia, Czechia. The city operates in the Europe/Prague time zone.
In 2025, Kosmonosy recorded an average annual temperature of 49°F. The hottest temperatures reached 94°F in August; the coolest were 5°F in February. Total precipitation for the year was 23 inches, with the wettest month being July. Snowfall for the year totaled approximately 5 inches.
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