Petäjävesi Temperature by Month

Petäjävesi in Western Finland, Finland sees significant seasonal temperature differences, with daytime highs between -3°C (27°F) in January and 23°C (73°F) in July, averaging 9°C (48°F) annually. Explore the full monthly breakdown below.

The weather in Petäjävesi experiences significant differences between warm and cold seasons, with big shifts in temperature. At night, minimum temperatures range from 12°C (54°F) in July to -10°C (14°F) in January.

The chart below illustrates the average maximum day and minimum night temperatures in Petäjävesi by month:

Daily lows are most common between 4 AM and 6 AM. By 3 PM temperatures reach their daily high, driven by peak solar heating.

The chart below shows the average temperature throughout the year:

Petäjävesi's average annual maximum temperature is 9°C (48°F). To put that in context, here's how it compares to a few well-known destinations:

Seville, Spain averages 23°C (73°F) a year, one of the warmer cities in Western Europe, with long hot summers.

Interlaken, Switzerland averages 8°C (46°F) a year, with cold winters and cool summers thanks to its Alpine setting.

Buenos Aires, Argentina averages 23°C (73°F) a year, with hot summers and mild winters, and seasons reversed compared to Europe.

Tokyo, Japan averages 21°C (70°F) a year, with hot summers, cool winters, and a well-defined cherry blossom spring.

Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.

In the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.

In Petäjävesi, January is the coolest month, with average highs of -3°C (27°F) and humidity around 88%, considered very high. For a full picture, see our humidity page.

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 Petäjävesi this rarely lasts long on the ground.

For more on Petäjävesi's weather, including monthly rainfall, sunshine hours, and humidity, visit our Petäjävesi climate page.