Oosterhout pollen forecast - today, tomorrow and the week ahead

Today (25 June) pollen in Oosterhout is medium; grass is medium; cypress is low. Tomorrow (26 June 2026) levels are similar - cypress remains low, grass increasing. 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

Oosterhout's Mark River corridor and surrounding green spaces feature oak, birch, and linden as the main tree pollen sources, with exposure varying between these areas and the more built-up city centre. Surrounding North Brabant farmland and the Mastbos woodland contribute substantial tree and grass pollen, while the flat, open landscape allows pollen to disperse readily across the city under prevailing westerly winds.

Today - 25 June

  • Alder (Alnus):

    None

    0/100

  • Birch (Betula):

    None

    0/100

  • Hazel (Corylus):

    None

    0/100

  • Cypress (Cupressaceae):

    Low

    3/100

  • Grass (Poaceae):

    Medium

    49/100

  • 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):

    Low

    18/100

  • Grass (Poaceae):

    High

    64/100

  • Willow (Salicaceae):

    None

    0/100

Frequently Asked Questions

Is pollen high in Oosterhout right now?

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

Will pollen levels change in Oosterhout tomorrow?

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

Is pollen expected to decrease in Oosterhout 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 Oosterhout?

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

When is pollen season in Oosterhout?
Oosterhout's pollen season runs from January through August, opening with hazel and alder from January before birch peaks through April. Oak and ash follow through April and May, with grass peaking through June and July. The Mastbos woodland contributes substantial tree pollen during spring, while surrounding North Brabant farmland extends grass pollen into August and frequent oceanic rainfall provides regular interruptions throughout the season.
How often is the Oosterhout pollen forecast updated?

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

Does pollen in Oosterhout 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 Oosterhout 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 Oosterhout, 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, 09:00 CET (Data is updated four times daily.)

This page provides the latest public pollen forecast for Oosterhout.

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.