Passau pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Passau is high; mugwort is high; grass is low. Tomorrow (10 August 2026) levels are similar. 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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Around Passau, maple, linden, and birch stand out as the leading tree pollen sources in parks and gardens, with exposure shifting between green space and centre. Additional tree and grass pollen comes from Bavarian Alpine foreland farmland and spruce woodland surrounding the town, while the alpine foreland setting delays the pollen season slightly.

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

    14/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    High

    59/100

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):

    Low

    21/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    High

    70/100

Air quality in Passau

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Frequently Asked Questions

Is pollen high in Passau right now?

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

Will pollen levels change in Passau tomorrow?

On 10 August 2026, pollen conditions in Passau will be similar to today, with artemisia at high levels, grass at low levels

Is pollen expected to decrease in Passau 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 Passau?

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

When is pollen season in Passau?
Passau's pollen season continues from January through August, launched by hazel and alder from late January before birch peaking through April and May. Grass pollen peaks next, running through June and July. The town sits at the edge of the Bavarian Alps, where alpine meadow and forest dominate the surrounding terrain, contributing mountain grass and conifer pollen into midsummer.
How often is the Passau pollen forecast updated?

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

Does pollen in Passau 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 Passau 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 Passau, 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 Germany?

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 Passau.

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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.