Leszno pollen forecast - today, tomorrow and the week ahead

Today (25 June) pollen in Leszno is high; grass is high; cypress is medium. Tomorrow (26 June 2026) levels are similar - grass declining. Over the following five days cypress will increase; 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

Leszno's Rowienica River corridor and surrounding Greater Poland landscape feature oak, birch, and linden as the main tree pollen sources. Surrounding lowland farmland and woodland contribute substantial grass and tree pollen, while the continental climate produces a well-defined spring pollen season with birch being particularly significant and the flat, open landscape allows pollen to disperse widely throughout.

Today - 25 June

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Medium

    27/100

  • Grass (Poaceae):

    High

    67/100

  • 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):

    None

    0/100

  • Grass (Poaceae):

    Medium

    39/100

  • Willow (Salicaceae):

    None

    0/100

Frequently Asked Questions

Is pollen high in Leszno right now?

On 25 June 2026, overall pollen levels in Leszno are high. Grass is the main contributor to airborne pollen, while cypress remain at lower levels

Will pollen levels change in Leszno tomorrow?

On 26 June 2026, pollen conditions in Leszno will be different from today, with grass continuing to decline

Is pollen expected to decrease in Leszno this week?

According to the five-day outlook, grass pollen levels are expected to gradually decrease, while cypress pollen will increase, suggesting mixed conditions later in the week.

Which pollen types are currently active in Leszno?

On 25 June 2026, Grass is the dominant pollen source in Leszno. cypress are also present but at lower levels. alder, birch, hazel, and willow are not currently active.

When is pollen season in Leszno?
Leszno's flat Greater Poland lowland setting allows pollen to disperse widely during the continental season opening with hazel and alder in February before birch peaks through April. Oak and ash follow through May, with grass from surrounding farmland peaking through June and July. Mugwort and nettle extend exposure into September, while the flat landscape means pollen disperses readily under prevailing westerly winds.
How often is the Leszno pollen forecast updated?

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

Does pollen in Leszno 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 Leszno 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 Leszno, 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 Poland?

Check pollen in other popular cities:

Data provided by Airmine — Last update: 25 Jun 2026, 09:00 CET (Data is updated four times daily.)

This page provides the latest public pollen forecast for Leszno.

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.