Hennef pollen forecast - today, tomorrow and the week ahead
Today (9 August) pollen in Hennef is high; mugwort is high; grass is low. Tomorrow (10 August 2026) levels are similar - mugwort remains high. Over the following five days grass will increase; mugwort will decrease. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
Get the full experience in the Airmine app.
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.
Around Hennef, hornbeam, oak, and birch stand out as the leading tree pollen sources in parks and gardens, with exposure shifting between green space and centre. Tree and grass pollen levels rise further from Sauerland farmland and steep valley woodland at the town's edge, while varied slope orientation gives noticeably different exposure across the town.
Today - 9 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
None
0/100
-
Grass (Poaceae):
Low
24/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
High
70/100
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 - 10 August
-
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):
High
65/100
Air quality in Hennef
View air qualityFrequently Asked Questions
Is pollen high in Hennef right now?
On 9 August 2026, overall pollen levels in Hennef are high. Artemisia is the main contributor to airborne pollen, while grass remain at lower levels
Will pollen levels change in Hennef tomorrow?
On 10 August 2026, pollen conditions in Hennef will be different from today, with artemisia at high levels
Is pollen expected to decrease in Hennef this week?
According to the five-day outlook, artemisia pollen levels are expected to gradually decrease, while grass pollen will increase, suggesting mixed conditions later in the week.
Which pollen types are currently active in Hennef?
On 9 August 2026, Artemisia is the dominant pollen source in Hennef. grass are also present but at lower levels. hazel, cypress, and willow are not currently active.
When is pollen season in Hennef?
How often is the Hennef pollen forecast updated?
The Hennef pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Hennef 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 Hennef 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 Hennef, 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: 10 August 2026 at 02:34 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Hennef.
Get the full experience in 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.