Pollen Count
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Pollen Count in Siegen

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In Siegen, Germany, trees start producing pollen in March. This is the beginning of birch pollen season. Birch trees release tiny particles into the air.

Updated: 2/11/2026

In April, other trees like oak and hazel join in. They release their own pollen, making the air thick with tiny particles. This lasts until May.

In May, grasses start to grow and release their pollen. This is the worst time for people with pollen allergies. It's a good idea to stay indoors on windy days.

Pollen seasons slowly come to an end in July. The air is cleaner, and people can enjoy the outdoors again. Summer is a great time to explore Siegen's parks and forests.

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).

Annual Pollen Overview

Check out this month-by-month overview of the daily average pollen count in Siegen 🌾. 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 40 0 0 0 0 0
Mar 1906.4 87.6 0 0 0 0
Apr 9.7 2871 8.8 0 0 0
May 0.8 109.1 103.5 0 0.4 0
Jun 0 0.2 449.1 15.4 0.6 0
Jul 0 0.2 132.7 81.5 0 0
Aug 0 0 27.7 21.9 0 2.1
Sep 0 0 2.1 1.7 0 5
Oct 0 0 0 0.1 0 0
Nov 0 0 0 0 0 0
Dec 0 0 0 0 0 0

Nearby Places

Disclaimer * The pollen count information provided for Siegen is for educational purposes only, sourced from the CAMS European air quality database. We cannot guarantee its accuracy or reliability. This information is not a substitute for professional medical advice. Consult a qualified healthcare provider for medical concerns. We are not medical professionals.
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