Kalundborg pollen forecast - today, tomorrow and the week ahead

Today (9 August) pollen in Kalundborg 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 cypress, grass, and mugwort will increase. 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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Kalundborg's older residential streets are lined with lime and horse chestnut, with beech dominating the wooded slopes above the fjord. West Zealand's extensive grain and rapeseed fields ring the town, and the sheltered fjord basin can trap pollen on still, windless days rather than clearing it out to sea.

Today - 9 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    15/100

  • Grass (Poaceae):

    Medium

    30/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    High

    70/100

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

    2/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Medium

    49/100

Air quality in Kalundborg

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Frequently Asked Questions

Is pollen high in Kalundborg right now?

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

Will pollen levels change in Kalundborg tomorrow?

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

Is pollen expected to decrease in Kalundborg this week?

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

Which pollen types are currently active in Kalundborg?

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

When is pollen season in Kalundborg?
Kalundborg sees pollen building from January, when hazel and alder open the season along the fjord, before birch takes over as the dominant source through April and May. Grass follows through June and July. The sheltered Kalundborg Fjord limits dispersal on calm days, while the surrounding west Zealand grain belt adds a strong crop pollen pulse each summer.
How often is the Kalundborg pollen forecast updated?

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

Does pollen in Kalundborg 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 Kalundborg 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 Kalundborg, 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 Denmark?

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 Kalundborg.

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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.