Uusikaupunki Weather & Climate: Best Time to Visit

The climate in Uusikaupunki is known for significant temperature differences throughout the year, making the weather dynamic. Average maximum daytime temperatures range from a pleasant 20°C (68°F) in July, the warmest time of the year, to a very cold 0°C (32°F) during cooler months like February.

At night, you can expect temperatures ranging from 14°C (57°F) in July to around -5°C (23°F) during February.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Uusikaupunki receives mid-range precipitation levels, with 684 mm (27 in) annually. While rainfall varies throughout the year, each season offers its own charm. October brings wetter days averaging 75 mm (3 in) of precipitation, spread over 17 rainy days.

In contrast, the driest month April experiences a drier climate, with about 36 mm (1.4 in) of rainfall spread across 12 rainy days. For more details, please visit our Uusikaupunki Precipitation page.

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

The average number of days each month with precipitation

Seasonal changes in sunshine hours are quite dramatic in Uusikaupunki. While July receives considerable daily sunshine with up to 9.6 hours, December marks the darkest time of the year, where sunshine is scarce with only 0.9 hours of sunlight per day.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine