Pollen Count in Oulu
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Oulu, Finland has cold winters and short cool summers. Spring and fall are mild but pollen counts are highest in late spring.
Updated: 2/9/2026
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.
Pollen Forecast Chart
Recommendations
When pollen concentrations reach a peak, we suggest these simple steps to help with hay fever. These tips are extra important on windy days when plants are in peak anthesis (the time when they release the most pollen).
- Wear masks if necessary
- Shower after going out
- Wear sunglasses if windy
- Close windows and doors
- Use an indoor air purifier
- Avoid wearing woolen clothes outside
- Limit outdoor activities
Annual Pollen Overview
Check out this month-by-month overview of the daily average pollen count in Oulu 🌾. This data is based on previous years and serves as a guideline to help you understand when different pollen seasons typically occur in your city.
| Alder | Birch | Grass | Mugwort | Olive | Ragweed | |
|---|---|---|---|---|---|---|
| Jan | 0 | 0 | 0 | 0 | 0 | 0 |
| Feb | 0.1 | 0 | 0 | 0 | 0 | 0 |
| Mar | 17.1 | 0.5 | 0 | 0 | 0 | 0 |
| Apr | 193.5 | 147.6 | 0 | 0 | 0 | 0 |
| May | 324.8 | 6495.7 | 1.6 | 0 | 0 | 0 |
| Jun | 0 | 2233.5 | 57.2 | 0.2 | 0 | 0 |
| Jul | 0 | 5.6 | 552.7 | 139.9 | 0 | 0 |
| Aug | 0 | 0 | 75.5 | 48.6 | 0 | 0 |
| Sep | 0 | 0 | 3.4 | 0.1 | 0 | 1.8 |
| Oct | 0 | 0 | 0 | 0 | 0 | 0 |
| Nov | 0 | 0 | 0 | 0 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |