Pollen Count in Norrköping
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Norrköping has different types of pollen. Trees, grasses, and weeds make pollen. Pollen floats in the air. It's like tiny dust.
Updated: 4/16/2026
Spring starts with tree pollen. Alder, birch, and oak trees make a lot of pollen. This happens in March and April. Pollen counts are usually high.
Grasses make pollen in late spring. May and June are peak months. Grass pollen counts are often very high. People notice more pollen outside.
Weeds make pollen in late summer. August and September have some weed pollen. It's not as bad as tree or grass pollen. Pollen counts start to decrease.
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 Norrköping 🌾. 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 | 0.6 | 0 | 0 | 0 | 0 | 0 |
| Mar | 90.7 | 15.5 | 0 | 0 | 0 | 0 |
| Apr | 7.3 | 6067.4 | 0.3 | 0 | 0 | 0 |
| May | 4.6 | 820.8 | 34.4 | 0 | 0 | 0 |
| Jun | 0 | 16 | 650.5 | 0.1 | 0 | 0 |
| Jul | 0 | 2.3 | 451.6 | 65.3 | 0 | 0 |
| Aug | 0 | 0 | 78.6 | 33.5 | 0 | 4.3 |
| Sep | 0 | 0 | 4.8 | 0.2 | 0 | 39.3 |
| Oct | 0 | 0 | 0.1 | 0 | 0 | 0 |
| Nov | 0 | 0 | 0 | 0 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
(50 km)