Landerneau pollen forecast - today, tomorrow and the week ahead

Today (20 July) pollen in Landerneau 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.

In Landerneau, tree pollen mainly comes from birch and oak found in parks and along the Odet. Surrounding Breton dairy pasture and coastal farmland contribute substantial grass and scrub pollen, and the oceanic maritime climate creates some local variation in exposure through the season.

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

    12/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    Low

    11/100

Air quality in Landerneau

View air quality

Frequently Asked Questions

Is pollen high in Landerneau right now?

Currently, there is no significant pollen in Landerneau.

Will pollen levels change in Landerneau tomorrow?

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

Is pollen expected to decrease in Landerneau this week?

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

Which pollen types are currently active in Landerneau?

On 20 July 2026, there are no significant pollen types in Landerneau.

When is pollen season in Landerneau?
In Landerneau, the pollen season typically opens in January with hazel and alder, before birch and oak pollen takes over through April and May, before grass from coastal pasture extends the season into summer, with the oceanic maritime climate of the region shaping the overall pattern.
How often is the Landerneau pollen forecast updated?

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

Does pollen in Landerneau 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 Landerneau 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 Landerneau, 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 Landerneau.

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.