Jena pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Jena is high; mugwort is high; grass is medium; cypress is low. Tomorrow (10 August 2026) levels are similar - grass declining, mugwort declining. Over the following five days grass and mugwort will increase; cypress will remain stable. 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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Jena's parks and green spaces draw chiefly on birch, beech, and spruce as the main tree pollen sources, with exposure varying between these areas and the more built-up centre. The Thuringian farmland and upland woodland beyond the town supply further tree and grass pollen, while valley settings can concentrate pollen under calm conditions.

Today - 9 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    25/100

  • Grass (Poaceae):

    Medium

    26/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    High

    60/100

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

    4/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Medium

    41/100

Air quality in Jena

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Frequently Asked Questions

Is pollen high in Jena right now?

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

Will pollen levels change in Jena tomorrow?

On 10 August 2026, pollen conditions in Jena will be different from today, with artemisia, grass continuing to decline

Is pollen expected to decrease in Jena this week?

According to the five-day outlook, artemisia and grass pollen levels will increase later in the week.

Which pollen types are currently active in Jena?

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

When is pollen season in Jena?
Jena's pollen season carries on from January to August, kicking off with hazel and alder from January prior to birch pollen surging through April before easing into May. Summer grass pollen follows, peaking in June and July. Nearby, Thuringian forest and open farmland define the hilly local terrain, keeping farmland and forest pollen elevated into early summer.
How often is the Jena pollen forecast updated?

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

Does pollen in Jena 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 Jena 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 Jena, 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: 10 August 2026 at 02:34 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Jena.

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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.