Château-Thierry pollen forecast - today, tomorrow and the week ahead

Today (20 July) pollen in Château-Thierry is none Tomorrow (21 July 2026) levels are similar - grass at low levels, mugwort at low levels. Over the following five days grass and mugwort will decrease. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.

For long term forecasts and maps, see the Airmine app

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

Use our Strava plugin to check your own exposure.

Château-Thierry's parks and the Deule corridor feature birch and oak as the main tree pollen sources, with exposure varying between green areas and the more built-up centre. Surrounding Picardy and Artois arable plains contribute substantial grass and scrub pollen, while the cool oceanic climate shapes how pollen disperses across the town.

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):

    None

    0/100

  • 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):

    None

    0/100

  • Grass (Poaceae):

    Low

    18/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    15/100

Air quality in Château-Thierry

View air quality

Frequently Asked Questions

Is pollen high in Château-Thierry right now?

Currently, there is no significant pollen in Château-Thierry.

Will pollen levels change in Château-Thierry tomorrow?

On 21 July 2026, pollen conditions in Château-Thierry will be different from today, with artemisia at low levels, grass at low levels

Is pollen expected to decrease in Château-Thierry this week?

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

Which pollen types are currently active in Château-Thierry?

On 20 July 2026, there are no significant pollen types in Château-Thierry.

When is pollen season in Château-Thierry?
Château-Thierry opens its pollen year with hazel and alder appearing from late January, and progresses through birch and oak from April into May, before grass from arable plains rounds out the season into summer, consistent with the wider cool oceanic character of the region.
How often is the Château-Thierry pollen forecast updated?

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

Does pollen in Château-Thierry 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 Château-Thierry 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 Château-Thierry, 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 France?

Check pollen in other popular cities:

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 Château-Thierry.

For long term forecasts and maps, see the Airmine app

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