Finnish Aviation: Defining Seasons Through Temperature Changes

In aeronautics, the seasons are defined by temperature changes rather than calendar months. This precise definition allows for a clear understanding of the weather patterns that occur throughout the year. For instance, winter is characterized by temperatures below zero, while spring begins when temperatures rise above zero. Similarly, summer is marked by temperatures above 10 degrees, and autumn arrives when temperatures drop below 10 degrees once again.

The duration of each season can vary depending on the location. For example, in cities like Helsinki and Turku, summer is slightly longer than winter, but as you move further north, the length of winter increases while summer shortens. In Tampere, the seasons are roughly equal in length, but in most of Finland, winter surpasses the duration of summer.

In Lapland’s northern regions, summer lasts less than three months with winter extending for half a year. As a result, winter is twice as long as summer in these areas. The differences in season lengths across Finland highlight the diverse climate conditions experienced in different parts of the country.

Despite these variations in season length across Finland’s regions, one thing remains consistent: the precise definition of seasons based on temperature changes provides valuable insight into weather patterns throughout the year. By understanding these patterns and their impact on specific locations within Finland, pilots can better plan their flights and navigate through different weather conditions with greater ease and safety.