Pollen Count in Karlsruhe
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Karlsruhe, Germany has different pollen seasons. Tree pollen starts in March. It's high in April and May. People notice more pollen on windy days.
Updated: 4/11/2026
Grass pollen season starts in May. It peaks in June and July. Grass pollen is very high during these months. This makes people uncomfortable outside.
Weed pollen season starts in August. It's not as strong as tree or grass pollen. Weed pollen can still cause problems. It ends in October.
Winter months have low pollen. From November to February, there's little pollen. This is a good time for people to be outside without worries.
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 Karlsruhe 🌾. 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 | 1.9 | 0 | 0 | 0 | 0 | 0 |
| Feb | 110.1 | 0 | 0 | 0 | 0 | 0 |
| Mar | 299.5 | 274 | 0.1 | 0 | 0 | 0 |
| Apr | 4.1 | 1089.6 | 22.8 | 0 | 0.1 | 0 |
| May | 0.4 | 59.9 | 275.8 | 0 | 0.7 | 0 |
| Jun | 0 | 0.8 | 795.1 | 22.9 | 1.3 | 0 |
| Jul | 0 | 0.1 | 260.1 | 152.6 | 0 | 0 |
| Aug | 0 | 0 | 55.1 | 64.8 | 0 | 46 |
| Sep | 0 | 0 | 4.3 | 35 | 0 | 51.5 |
| Oct | 0 | 0 | 0.2 | 4.3 | 0 | 0.1 |
| Nov | 0 | 0 | 0 | 0 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
(48 km)
(67 km)