Lausanne pollen forecast - today, tomorrow and the week ahead

Today (30 August) pollen in Lausanne is high; mugwort is high; grass is low. Tomorrow (31 August 2026) levels are similar - mugwort declining. Over the following five days 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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Lausanne's parks and the Flon River and Lake Geneva corridor feature oak, birch, and linden as the main tree pollen sources, with exposure varying between green areas and the more built-up city centre. Surrounding Swiss Romand farmland and the Jura Mountain foothills contribute substantial tree and grass pollen, while the lake position and surrounding mountains channel airflows and concentrate pollen across the basin.

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

    18/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    High

    53/100

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):

    Low

    19/100

Air quality in Lausanne

View air quality

Pollen forecast for neighborhoods and landmarks in Lausanne

Chailly Flon La Sallaz Lake Geneva Shoreline Ouchy Sous-Gare

Frequently Asked Questions

Is pollen high in Lausanne right now?

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

Will pollen levels change in Lausanne tomorrow?

On 31 August 2026, pollen conditions in Lausanne will be different from today, with artemisia continuing to decline

Is pollen expected to decrease in Lausanne 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 Lausanne?

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

When is pollen season in Lausanne?
Lausanne's pollen season runs from January through August, opening with hazel and alder from January before birch peaks strongly through April. Oak and ash follow through April and May, with grass peaking through June and July. The Lake Geneva basin and surrounding Jura Mountain foothills concentrate pollen under calm conditions, while the relatively mild lake microclimate means the season begins slightly earlier than in more elevated Swiss cities.
How often is the Lausanne pollen forecast updated?

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

Does pollen in Lausanne 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 Lausanne 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 Lausanne, 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 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 Lausanne.

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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.