Troisdorf pollen forecast - today, tomorrow and the week ahead
Today (25 June) pollen in Troisdorf is medium; grass is medium; cypress is low. Tomorrow (26 June 2026) levels are similar. 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
Troisdorf's parks and the Sieg River corridor feature oak, birch, and linden as the main tree pollen sources, with exposure varying between these green areas and the more built-up city centre. Surrounding North Rhine-Westphalia farmland and the Siebengebirge woodland contribute substantial tree and grass pollen, while the Rhine valley channels airflows and connects Troisdorf to the broader Cologne-Bonn metropolitan pollen landscape.
Today - 25 June
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
Low
7/100
-
Grass (Poaceae):
Medium
33/100
-
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
7/100
-
Grass (Poaceae):
Medium
32/100
-
Willow (Salicaceae):
None
0/100
Frequently Asked Questions
Is pollen high in Troisdorf right now?
On 25 June 2026, overall pollen levels in Troisdorf are moderate. Grass is the main contributor to airborne pollen, while cypress remain at lower levels
Will pollen levels change in Troisdorf tomorrow?
On 26 June 2026, pollen conditions in Troisdorf will be similar to today, with grass at medium levels, cypress at low levels
Is pollen expected to decrease in Troisdorf this week?
According to the five-day outlook, grass and cypress pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Troisdorf?
On 25 June 2026, Grass is the dominant pollen source in Troisdorf. cypress are also present but at lower levels. willow, alder, birch, and hazel are not currently active.
When is pollen season in Troisdorf?
How often is the Troisdorf pollen forecast updated?
The Troisdorf pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Troisdorf 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 Troisdorf 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 Troisdorf, 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 Germany?
Check pollen in other popular cities:
Data provided by Airmine — Last update: 25 Jun 2026, 09:01 CET (Data is updated four times daily.)
This page provides the latest public pollen forecast for Troisdorf.
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.