Pollen Count in Geilo
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Geilo has four pollen seasons. Spring starts in March with birch trees releasing pollen. This season usually ends in May. Many people feel unwell during this time.
Updated: 5/19/2026
Summer pollen season starts in June. Grasses and weeds release pollen. This season lasts until July. Warm and sunny days make pollen counts higher.
Late summer has another pollen season. Weeds like ragweed release pollen. This season ends in September. Pollen counts are usually lower on rainy days.
Winter has low pollen counts. Some trees like spruce and fir release pollen. This season is usually mild. Snow and cold temperatures reduce 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 Geilo 🌾. 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 | 6.1 | 0.2 | 0 | 0 | 0 | 0 |
| Apr | 0.7 | 160.6 | 0 | 0 | 0 | 0 |
| May | 0.1 | 2533.9 | 3.8 | 0 | 0 | 0 |
| Jun | 0 | 929.6 | 374.8 | 0 | 0 | 0 |
| Jul | 0 | 15.4 | 233.3 | 1 | 0 | 0 |
| Aug | 0 | 0 | 4.1 | 0.1 | 0 | 0 |
| Sep | 0 | 0 | 0 | 0 | 0 | 0.2 |
| Oct | 0 | 0 | 0 | 0 | 0 | 0 |
| Nov | 0 | 0 | 0 | 0 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
(60 km)