Pollen Count
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Pollen Count in Ostrava

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Ostrava has four main pollen seasons. Tree pollen season starts in March. Many trees like oak, birch, and beech produce pollen. It's a big problem for some people.

Updated: 2/26/2026

Grasses and flowers start pollinating in May. This season usually lasts until July. Pollen counts are often high during this time. People notice more pollen in the air.

Weed pollen season begins in August. It lasts until the first frost. Some weeds like mugwort and ragweed produce a lot of pollen. This can be tough for some.

Snow and cold weather stop pollen. The pollen seasons end in winter. Ostrava's pollen seasons follow a yearly pattern. People prepare for the seasons.

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 Ostrava 🌾. 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 4.5 0 0 0 0 0
Feb 15 0 0 0 0 0
Mar 679 288.7 0 0 0 0
Apr 5.8 2775.4 18.4 0 0.4 0
May 0.3 57.6 138.9 0 0.1 0
Jun 0 2.3 1009.4 0.2 2.9 0
Jul 0 0.4 400.2 64.1 0 0
Aug 0 0 117.8 171.1 0 103.6
Sep 0 0 11.5 51.7 0 112.5
Oct 0 0 1.1 3.7 0 0.1
Nov 0 0 0 0 0 0
Dec 0 0 0 0 0 0

Nearby Places

Disclaimer * The pollen count information provided for Ostrava 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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