Hopsten pollen forecast - today, tomorrow and the week ahead

Today (20 July) pollen in Hopsten is low; grass is low. Tomorrow (21 July 2026) levels are similar - grass increasing, cypress at low levels, mugwort at low levels. Over the following five days cypress, grass, and mugwort 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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Tree pollen in Hopsten comes mainly from beech, ash, and maple across parks and gardens, varying between these green areas and the denser town centre. The Westphalian farmland and isolated copses beyond the town supply further tree and grass pollen, while the patchwork of fields and copses gives modest pollen variability.

Today - 20 July

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Low

    17/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

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 - 21 July

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    12/100

  • Grass (Poaceae):

    Medium

    28/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    13/100

Air quality in Hopsten

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Frequently Asked Questions

Is pollen high in Hopsten right now?

On 20 July 2026, overall pollen levels in Hopsten are low. Grass is the main contributor to airborne pollen

Will pollen levels change in Hopsten tomorrow?

On 21 July 2026, pollen conditions in Hopsten will be different from today, with cypress at low levels, artemisia at low levels and grass increasing

Is pollen expected to decrease in Hopsten this week?

According to the five-day outlook, cypress, grass, and artemisia pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.

Which pollen types are currently active in Hopsten?

On 20 July 2026, Grass is the dominant pollen source in Hopsten. birch, hazel, cypress, willow, alder, and artemisia are not currently active.

When is pollen season in Hopsten?
Hopsten's pollen season unfolds from January through August, beginning with hazel and alder from late January with birch climbing through April into May. Grass pollen takes over across June and July. Surrounding the town, the flat Münsterland countryside offers wide arable fields and scattered woodland that shape local pollen levels, adding heavy grass pollen loads once the growing season advances.
How often is the Hopsten pollen forecast updated?

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

Does pollen in Hopsten 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 Hopsten 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 Hopsten, 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?

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Data provided by Airmine — Last update: 20 July 2026 at 16:32 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Hopsten.

For long term forecasts and maps, see the Airmine app

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