Pollen Count in Zeist
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Zeist has different pollen seasons. Tree pollen starts in March. It's high in April and May. Elm, oak, and birch trees produce a lot of pollen.
Updated: 5/31/2026
Grass pollen season starts in May. It peaks in June and July. Many people notice more pollen on warm and sunny days.
Ragweed pollen season is usually in August and September. This pollen can travel far and cause problems. Weeds and flowers also produce pollen.
Winter months have low pollen counts. Spring and summer are the main pollen seasons. Pollen counts can be different each year, depending on the weather.
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 Zeist 🌾. 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 | 18.3 | 0 | 0 | 0 | 0 | 0 |
| Mar | 351 | 74.3 | 0.1 | 0 | 0 | 0 |
| Apr | 6.6 | 2017 | 21.2 | 0 | 0 | 0 |
| May | 0.8 | 142.9 | 132.5 | 0 | 0.1 | 0 |
| Jun | 0 | 0.1 | 805.8 | 16.9 | 0.4 | 0 |
| Jul | 0 | 0.4 | 313 | 113.5 | 0 | 0 |
| Aug | 0 | 0 | 115.9 | 37.5 | 0 | 0.2 |
| Sep | 0 | 0 | 16.7 | 0.8 | 0 | 2.7 |
| Oct | 0 | 0 | 2.2 | 0.1 | 0 | 0 |
| Nov | 0 | 0 | 0.2 | 0 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
(7 km)