Opava pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Opava is high; mugwort is high; grass is low. Tomorrow (10 August 2026) levels are similar - mugwort remains high, grass increasing. Over the following five days mugwort will increase; grass will decrease. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team

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Opava's Opava River valley and the Opava Highlands woodland fringe oak and birch lead the tree pollen count, and grass from nearby Moravskoslezský Kraj farmland adds to totals through early summer. Local green spaces and built-up streets see noticeably different exposure.

Today - 9 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Low

    18/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    High

    53/100

High pollen levels may trigger sneezing, itchy eyes, and congestion. Airmine's neighbourhood estimates use satellites to map local vegetation and a statistical prediction model, updated four times daily.

Tomorrow - 10 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Medium

    29/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    High

    69/100

Air quality in Opava

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Frequently Asked Questions

Is pollen high in Opava right now?

On 9 August 2026, overall pollen levels in Opava are high. Artemisia is the main contributor to airborne pollen, while grass remain at lower levels

Will pollen levels change in Opava tomorrow?

On 10 August 2026, pollen conditions in Opava will be different from today, with artemisia at high levels and grass increasing

Is pollen expected to decrease in Opava this week?

According to the five-day outlook, grass pollen levels are expected to gradually decrease, while artemisia pollen will increase, suggesting mixed conditions later in the week.

Which pollen types are currently active in Opava?

On 9 August 2026, Artemisia is the dominant pollen source in Opava. grass are also present but at lower levels. hazel, cypress, and willow are not currently active.

When is pollen season in Opava?
Opava follows the typical Central European pattern: hazel and alder first, then oak and birch across spring, then grass into early summer, running January to August overall. Late-summer mugwort and ragweed can extend exposure into September in more open, farmed surroundings.
How often is the Opava pollen forecast updated?

The Opava pollen forecast is updated four times daily. See the timestamp below for the most recent update.

Does pollen in Opava come from nearby or far away?

Studies show that most pollen exposure (often 70–90%) comes from nearby sources, such as local trees and vegetation. A good pollen forecast therefore depends on accurately representing local vegetation. Pollen can travel long distances, but this usually matters only early in the season or during specific wind events.

Are pollen levels in Opava based on measurements or forecasts?

Pollen data is often misunderstood. Most "pollen levels" are not real-time measurements, but forecasts.

Direct pollen measurements are typically delayed by 1-2 days because they require manual analysis. To show current conditions in Opava, modern forecasts combine recent measurements, weather data, and information about local vegetation.

This allows us to estimate pollen levels for today and the coming days, not just report the past.

Airmine’s atmospheric monitoring platform was developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team, using satellite and Earth observation technologies to improve emissions monitoring.

Want to see pollen forecasts for other cities in Czechia?

Check pollen in other popular cities:

Data provided by Airmine — Last update: 9 August 2026 at 20:27 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Opava.

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Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.

Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.