Pollen Count in Otta
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Otta, Norway has four main pollen seasons. Spring pollen comes from trees like birch and hazel. This happens from March to May. Many trees release pollen during this time.
Updated: 5/19/2026
Summer pollen comes from grasses and weeds. This season starts in June and lasts until August. Grass pollen is a big problem for people in Otta.
In late summer and early fall, weeds produce pollen. This season is from August to October. Some weeds, like mugwort, make a lot of pollen.
In winter, there's almost no pollen. Otta gets very little pollen from December to February. This is a nice break for people who get bothered by pollen.
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 Otta 🌾. 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 | 4.1 | 0.1 | 0 | 0 | 0 | 0 |
| Apr | 2.1 | 185.3 | 0 | 0 | 0 | 0 |
| May | 0.1 | 1460.1 | 6.1 | 0 | 0 | 0 |
| Jun | 0 | 1312 | 270.7 | 0 | 0 | 0 |
| Jul | 0 | 31.3 | 305 | 0.9 | 0 | 0 |
| Aug | 0 | 0 | 18.2 | 0 | 0 | 0 |
| Sep | 0 | 0 | 0.4 | 0 | 0 | 0.6 |
| Oct | 0 | 0 | 0 | 0 | 0 | 0 |
| Nov | 0 | 0 | 0 | 0 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
(25 km)