Finnish climate
The Finnish climate is colder than in many other countries. However, the weather varies significantly in different seasons.
Winter
In the winter, the Finnish weather is cold with snowfalls. Normally, the country is under a permanent snow cover throughout the winter. The temperature is usually below 0°C. Daytime temperatures can be -10°C and sometimes as low as -20°C. In Northern Finland, the temperature can be as low as -30°C. If the ground is covered with snow and ice, it is also slippery.
In the winter you need to dress warmly. This means that you should wear at least a padded jacket, a woolly jumper and a woolly hat, gloves, a scarf and warm winter shoes. You should wear several layers of clothing in cold weather.
In Finland, it is often dark in the winter because the sun rises late in the morning and sets in the afternoon. Winter days are darker in Northern Finland than in Southern Finland. In the northernmost part of Finland, the sun does not rise at all for several weeks.
The winter months are December, January and February. However, the weather can also be cold with snowfall in November and March. The snow normally melts in March or April.
Spring
In Southern Finland, spring begins at the end of March whereas, in the north, spring comes at the end of April. The spring weather is often cool, but warmer than in winter. During the spring, the nature goes through a great deal of change as the snow and ice melt away, trees sprout leaves and plants begin to grow.
Summer
In Southern Finland, the average temperature in the summer is about 20°C while the temperature in the north is about 15°C. The summer months in Finland are June, July and August. The warmest month is July, when the daytime temperature often rises over 20°C.
Evenings and nights are bright in Finland during the summer, as the sun sets late and rises early. Then, Northern Finland has more daylight hours than Southern Finland. The month with the most daylight is June. In Finland, Midsummer, the night of the midnight sun, is celebrated in June. In the northernmost part of Finland, the sun does not set at all in early summer.
Autumn
Autumn normally begins at the end of August or the beginning of September. The weather is cool and often rainy and windy. The Finnish autumn is also dark because the sun sets earlier than in the summer. The first snowfall usually arrives in October or November.
Source: InfoFinland