Pollen Count in Horsens
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In Horsens, Denmark, pollen seasons start in the spring. Trees like birch, and oak release pollen into the air. This happens from late March to early May.
Updated: 3/19/2026
In the summer, grasses release pollen. This is from late May to early August. The pollen count is usually higher in rural areas than in cities.
In the fall, some weeds and bushes release pollen. This is from late August to early October. Pollen count can be high on windy days.
Trees start preparing for winter by late October. Pollen seasons in Horsens end by then.
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 Horsens 🌾. 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 | 0.5 | 0 | 0 | 0 | 0 | 0 |
| Feb | 3.3 | 0 | 0 | 0 | 0 | 0 |
| Mar | 7.3 | 102.6 | 0 | 0 | 0 | 0 |
| Apr | 0.2 | 761 | 4.2 | 0 | 0.5 | 0 |
| May | 0 | 242.7 | 62.3 | 0 | 0.1 | 0 |
| Jun | 0 | 1.2 | 491.7 | 21.9 | 0 | 0 |
| Jul | 0 | 0 | 289 | 163.1 | 0 | 0 |
| Aug | 0 | 0 | 90.9 | 56.8 | 0 | 3 |
| Sep | 0 | 0 | 11.4 | 0.9 | 0 | 20.5 |
| Oct | 0 | 0 | 1.2 | 0 | 0 | 0 |
| Nov | 0 | 0 | 0 | 0 | 0 | 0 |
| Dec | 0 | 0 | 0 | 0 | 0 | 0 |
(39 km)