Uusikaupunki Temperature by Month
Uusikaupunki in Southern Finland, Finland sees significant seasonal temperature differences, with daytime highs between 0°C (32°F) in February and 20°C (68°F) in July, averaging 10°C (50°F) annually. Explore the full monthly breakdown below.
Uusikaupunki Monthly Temperatures
With significant temperature fluctuations, Uusikaupunki enjoys distinct seasons year-round. Nighttime lows range from 14°C (57°F) in July to -5°C (23°F) in February.
The chart below illustrates the average maximum day and minimum night temperatures in Uusikaupunki by month:
The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. July, the city's warmest month, gets 288 hours of sunshine.
The chart below shows the average temperature throughout the year:
Temperature: Uusikaupunki vs Finland
The map below shows the annual temperature across Finland. You can also select individual months if you want to compare a specific time of year.
very warm
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Uusikaupunki vs World: Temperature Compared
Uusikaupunki's average annual maximum temperature is 10°C (50°F). To put that in context, here's how it compares to a few well-known destinations:
Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.
Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.
Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.
Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Uusikaupunki this rarely lasts long on the ground.
For more on Uusikaupunki's weather — including monthly rainfall, sunshine hours, and humidity — visit our Uusikaupunki climate page.
