Leeuwarden pollen forecast - today, tomorrow and the week ahead

Today (25 June) pollen in Leeuwarden is medium; grass is medium. Tomorrow (26 June 2026) levels are similar - grass increasing, cypress at medium levels. Over the following five days cypress and grass 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

Leeuwarden's Ee River and Princes Canal corridors feature oak, birch, and alder as the main tree pollen sources, with exposure varying between these green areas and the more built-up city centre. Surrounding Frisian farmland and the flat, open polder landscape contribute substantial grass and crop pollen, while the coastal position means onshore Wadden Sea winds can periodically disperse pollen.

Today - 25 June

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    None

    0/100

  • Grass (Poaceae):

    Medium

    34/100

  • Willow (Salicaceae):

    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 - 26 June

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Medium

    33/100

  • Grass (Poaceae):

    High

    70/100

  • Willow (Salicaceae):

    None

    0/100

Frequently Asked Questions

Is pollen high in Leeuwarden right now?

On 25 June 2026, overall pollen levels in Leeuwarden are moderate. Grass is the main contributor to airborne pollen

Will pollen levels change in Leeuwarden tomorrow?

On 26 June 2026, pollen conditions in Leeuwarden will be different from today, with cypress at medium levels and grass increasing

Is pollen expected to decrease in Leeuwarden this week?

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

Which pollen types are currently active in Leeuwarden?

On 25 June 2026, Grass is the dominant pollen source in Leeuwarden. alder, birch, hazel, cypress, and willow are not currently active.

When is pollen season in Leeuwarden?
Leeuwarden's pollen season runs from January through August, opening with hazel and alder from January before birch peaks through April and May. Grass pollen peaks through June and July. The flat Frisian polder landscape allows substantial grass and crop pollen to disperse widely, while the Wadden Sea coastal position means onshore winds can periodically interrupt exposure throughout the season.
How often is the Leeuwarden pollen forecast updated?

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

Does pollen in Leeuwarden 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 Leeuwarden 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 Leeuwarden, 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 Netherlands?

Check pollen in other popular cities:

Data provided by Airmine — Last update: 25 Jun 2026, 09:02 CET (Data is updated four times daily.)

This page provides the latest public pollen forecast for Leeuwarden.

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

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