Mělník Weather & Climate: Best Time to Visit

In Mělník, temperatures differ significantly between summer and winter months. Average daytime temperatures reach a comfortable 26°C (79°F) in August. In January, the coolest month of the year, temperatures drop to a chilly 4°C (39°F).

At night, temperatures range from around 14°C (57°F) in August to -2°C (28°F) in January.

Check out our detailed temperature page for more information.

Temperature ranges by month

On average, Mělník receives a reasonable amount of rain/snowfall, with an annual precipitation of 661 mm (26 in). Mělník experiences moderate seasonal variation in rainfall, with monthly averages ranging from 80 mm (3.1 in) in July, the wettest month, and 40 mm (1.6 in) in February, the driest month. For more details, please visit our Mělník Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Mělník can be enjoyed more throughout the sunniest month of July under a blue sky, with approximately 7.5 hours of sunshine daily. In contrast, the city experiences much darker days in December, with only 1.6 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

The relative humidity is high throughout the year in Mělník.

The city experiences its highest humidity in December, reaching 87%. In April, the humidity drops to its lowest level at 68%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year