Pollen Count in Ås
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Ås, Norway has different pollen seasons. Tree pollen starts in March. Birch trees make a lot of pollen. People notice it in late March and early April.
Updated: 2/12/2026
Grass pollen season starts in May. It lasts until July. Grasses make a lot of pollen. This is a big problem for people who are outside.
Weed pollen season is in August and September. Weeds like ragweed make pollen. This pollen can travel far. It can bother people.
Snow and cold weather stop pollen. When it gets warmer, pollen starts again. Ås, Norway's pollen seasons follow the weather and nature.
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 Ås 🌾. 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 | 0 | 0 | 0 | 0 | 0 |
| Mar | 6.5 | 8 | 0 | 0 | 0 | 0 |
| Apr | 47.2 | 2047.1 | 0.1 | 0 | 0 | 0 |
| May | 0.5 | 3871.7 | 12.9 | 0 | 0.1 | 0 |
| Jun | 0 | 4.8 | 397.4 | 0.1 | 0 | 0 |
| Jul | 0 | 0 | 306.1 | 9.7 | 0 | 0 |
| Aug | 0 | 0 | 25.3 | 7.1 | 0 | 0.6 |
| Sep | 0 | 0 | 0.7 | 0.1 | 0 | 14.4 |
| Oct | 0 | 0 | 0 | 0 | 0 | 0 |
| Nov | 0 | 0 | 0 | 0 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
(27 km)