Doorn pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Doorn is none
Pollen Tomorrow
Tomorrow (21 September 2026) mugwort at low levels.
7-Day Trend
Over the next week mugwort will increase; cypress, grass, and willow will remain stable.
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Features and forecast availability vary by region.
Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| 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 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| 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) | Low | 17/100 |
Local Environmental Conditions
Doorn's parks and green spaces are dominated by oak, birch, and linden as the main tree pollen sources, and readings can differ sharply between the town centre and its greener suburbs. the wooded Utrechtse Heuvelrug moraine and the wider Utrecht agricultural land also feed grass and tree pollen into the area, consistent with Doorn being a wooded ridge village.
Doorn typically records its earliest pollen in January from hazel and alder, moving into a birch-heavy stretch by April that runs through to August. As oak and ash pick up through April and May, grass then dominates the count for June and July. Local dispersal is influenced by the wooded Utrechtse Heuvelrug moraine, and the forested ridge estates east of Utrecht is characteristic of Doorn and its surroundings.
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Frequently Asked Questions About Pollen in Utrecht
Is pollen high in Doorn right now?
Currently, there is no significant pollen in Doorn.
Will pollen levels change in Doorn tomorrow?
On 21 September 2026, pollen conditions in Doorn will be different from today, with artemisia at low levels
Is pollen expected to decrease in Doorn this week?
According to the five-day outlook, artemisia pollen levels will increase later in the week.
Which pollen types are currently active in Doorn?
On 20 September 2026, there are no significant pollen types in Doorn.
When is pollen season in Doorn?
How often is the Doorn pollen forecast updated?
The Doorn pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Doorn 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 Doorn 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 Doorn, 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.
Understanding the Scale
The 0–100 scores represent risk levels, not direct measurements of pollen or air pollutant concentrations. Higher scores indicate higher risk. Pollen and air quality use different thresholds.
Pollen
| None | 0 | No or negligible risk of exposure. Pollen/mold exposure is expected to be minimal. |
| Low | 0-25 | Low risk of exposure. Small amounts of pollen or mold spores may be present. |
| Moderate | 25-50 | Moderate risk of exposure. Pollen/mold exposure is expected to be noticeable. |
| High | 50-75 | High risk of exposure. Elevated pollen/mold exposure is expected. |
| Very High | 75-100 | Very high risk of exposure. Pollen/mold exposure is expected to be at or near its highest levels. |
Get More in the Airmine Pollen app
Get 15-day pollen forecasts with morning, afternoon and evening detail, plus 5-day air quality forecasts. Explore interactive pollen risk maps, estimated pollen season start, route profiles and a symptoms diary.
Features and forecast availability vary by region. Currently covering Europe, the contiguous US, southern Canada, South Africa, Australia, Indonesia (Java & Bali), Brazil, Paraguay, Uruguay and the Buenos Aires area.
Developed with support from the European Space Agency (ESA) Business Applications and Space Solutions (BASS).
