Grenoble pollen forecast - today, tomorrow and the week ahead

Today (16 July) pollen in Grenoble is low; grass is low. Tomorrow (17 July 2026) levels are similar. Over the following five days grass will increase. 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

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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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Grenoble's parks and the Isère and Drac river corridors feature oak, birch, and walnut as the main tree pollen sources, with exposure varying between green areas and the more built-up city centre. Surrounding Alpine farmland and the Chartreuse and Vercors massifs contribute substantial tree and grass pollen, while the enclosed basin setting between surrounding mountains concentrates pollen under calm conditions.

Today - 16 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):

    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 - 17 July

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Low

    1/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

Air quality in Grenoble

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Frequently Asked Questions

Is pollen high in Grenoble right now?

On 16 July 2026, overall pollen levels in Grenoble are low. Grass is the main contributor to airborne pollen

Will pollen levels change in Grenoble tomorrow?

On 17 July 2026, pollen conditions in Grenoble will be similar to today, with grass at low levels

Is pollen expected to decrease in Grenoble this week?

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

Which pollen types are currently active in Grenoble?

On 16 July 2026, Grass is the dominant pollen source in Grenoble. willow, alder, artemisia, birch, hazel, and cypress are not currently active.

When is pollen season in Grenoble?
Grenoble's pollen season runs from January through August, opening with hazel and alder from January before birch and walnut peak through April and May. Grass pollen peaks through June and July. The enclosed Alpine basin setting between the Chartreuse, Vercors, and Belledonne massifs concentrates pollen under calm conditions, making Grenoble one of the more challenging French cities for pollen allergy sufferers during the intense spring season.
How often is the Grenoble pollen forecast updated?

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

Does pollen in Grenoble 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 Grenoble 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 Grenoble, 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?

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Check pollen in other popular cities:

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

Data provided by Airmine — Last update: 16 July 2026 at 05:36 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Grenoble.

For long term forecasts and maps, see the Airmine app

Download on the App Store Get it on Google Play

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