Oulu, Finland has cold winters and short cool summers. Spring and fall are mild but pollen counts are highest in late spring.
Pollen in Oulu comes mainly from birch, alder, and mugwort. Levels are usually low in summer due to long daylight hours and cool temperatures.
Climate change may affect pollen seasons, causing earlier starts and longer durations, but more research is needed. Currently, clean air and low pollution in Oulu contribute to relatively low pollen counts.
When pollen counts are high, we suggest doing these things to help with allergies, especially on windy days when pollen is flying around.