Thun pollen forecast - today, tomorrow and the week ahead

Today (30 August) pollen in Thun is low; grass and mugwort are low. Tomorrow (31 August 2026) levels are similar. Over the following five days grass will increase; mugwort 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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Thun's Aare riverside setting on Lake Thun features oak, linden, and beech as pollen sources, with exposure varying between the lakeside promenade and the built-up historic town centre. Lake breezes moderate local pollen timing.

Today - 30 August

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Low

    16/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    15/100

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 - 31 August

  • 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

Air quality in Thun

View air quality

Pollen forecast for neighborhoods and landmarks in Thun

Innere Stadt Thun Strättligen

Sports venues in Thun

Gstaad Ski Area

Frequently Asked Questions

Is pollen high in Thun right now?

On 30 August 2026, overall pollen levels in Thun are low. Artemisia is the main contributor to airborne pollen, while grass remain at lower levels

Will pollen levels change in Thun tomorrow?

On 31 August 2026, pollen conditions in Thun will be similar to today with no significant pollen expected.

Is pollen expected to decrease in Thun this week?

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

Which pollen types are currently active in Thun?

On 30 August 2026, Artemisia is the dominant pollen source in Thun. grass are also present but at lower levels. hazel, cypress, and willow are not currently active.

When is pollen season in Thun?
January opens Thun's pollen season with hazel and alder; birch peaks strongly through April, oak and ash follow, and grass then dominates June and July. Air tends to move along this river corridor, occasionally bunching up pollen on still days, while nearby cropland and woodland keep the season going strong. The elevated setting means the season begins slightly later than in lower-lying Swiss cities.
How often is the Thun pollen forecast updated?

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

Does pollen in Thun 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 Thun 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 Thun, 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 Switzerland?

Basel Bern Biel/Bienne Geneva Lausanne Lucerne Lugano Sankt Gallen Winterthur Zürich

Check pollen in other popular cities:

Melton Rio de Janeiro Copenhagen Athens Denpasar Rome Cape Town Barcelona London Los Angeles New York

Data provided by Airmine — Last update: 30 August 2026 at 14:32 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Thun.

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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.

Some text on this page may be generated or summarised using artificial intelligence (AI). Wherever possible, AI-generated content is enriched with Airmine's proprietary data to improve its accuracy and relevance. However, AI-generated content may still contain errors, omissions, or inaccuracies.