If you’re hoping to get lost in the rain on your romantic getaway, take a look at these details about year-round temperatures in Hluboka nad Vltavou: The hottest months are usually July and August, with an average temperature of 17°C, while the coldest months are January and February, with an average of 1°C. The snowiest months in Hluboka nad Vltavou are December, January, April and November, with each month seeing an average of 15 cm of snowfall.