Pollen Count in Nivelles
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Nivelles, Belgium has four main pollen seasons. Spring starts in March. Trees like oak, beech, and birch release pollen. This happens when days get warmer and sunnier.
Updated: 3/19/2026
In late spring, grasses and wheat start releasing pollen. This season usually peaks in May and June. Pollen counts are high in fields and meadows.
Summer brings pollen from weeds like ragweed. This pollen is tiny and can travel far. It can cause problems for people in Nivelles.
Autumn brings pollen from trees like chestnut and plane. This season usually ends in October. Then, pollen counts drop and stay low until next spring.
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 Nivelles 🌾. 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 | 23.8 | 0 | 0 | 0 | 0 | 0 |
| Mar | 633.2 | 208.7 | 0 | 0 | 0 | 0 |
| Apr | 3.2 | 2075.6 | 13.9 | 0 | 0 | 0 |
| May | 0.7 | 81.5 | 160.9 | 0 | 1.2 | 0 |
| Jun | 0 | 0.2 | 1277.8 | 32.7 | 0.6 | 0 |
| Jul | 0 | 0.2 | 443.8 | 246.2 | 0 | 0 |
| Aug | 0 | 0 | 87.3 | 64 | 0 | 2.1 |
| Sep | 0 | 0 | 6.6 | 6.8 | 0 | 3.9 |
| Oct | 0 | 0 | 0 | 0.6 | 0 | 0 |
| Nov | 0 | 0 | 0 | 0 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
(13 km)