Deventer pollen forecast - today, tomorrow and the week ahead

Today (16 July) pollen in Deventer 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

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.

Deventer's IJssel River corridor and historic city parkland feature oak, birch, and linden as the main tree pollen sources, with exposure varying between the riverside green areas and the more built-up city centre. Surrounding Overijssel farmland and the flat, open landscape contribute substantial grass and crop pollen, while the IJssel valley channels airflows under prevailing westerly winds.

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

    23/100

  • 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

    15/100

  • Willow (Salicaceae):

    None

    0/100

  • Mugwort (Artemisia):

    None

    0/100

Air quality in Deventer

View air quality

Frequently Asked Questions

Is pollen high in Deventer right now?

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

Will pollen levels change in Deventer tomorrow?

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

Is pollen expected to decrease in Deventer this week?

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

Which pollen types are currently active in Deventer?

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

When is pollen season in Deventer?
Deventer'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 IJssel valley channels airflows and concentrates pollen, while surrounding Overijssel farmland extends substantial grass and crop pollen into August under prevailing westerly winds.
How often is the Deventer pollen forecast updated?

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

Does pollen in Deventer 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 Deventer 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 Deventer, 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: 16 July 2026 at 05:36 CEST (Data is updated four times daily.)

This page provides the latest public pollen forecast for Deventer.

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.