Slagelse pollen forecast - today, tomorrow and the week ahead
Today (9 August) pollen in Slagelse is high; mugwort is high; grass is medium; cypress is low. Tomorrow (10 August 2026) levels are similar - grass declining, mugwort declining. Over the following five days cypress, grass, and mugwort will increase. Forecasts are calculated by Airmine using satellites to map local vegetation and determine pollen season onset.
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Slagelse's parks and residential avenues rely on lime, oak, and birch, while the town is ringed almost entirely by intensive Zealand grain farming. This inland, agricultural setting means grass and cereal pollen loads here run higher relative to tree pollen than in most other Danish provincial towns.
Today - 9 August
-
Alder (Alnus):
None
0/100
-
Birch (Betula):
None
0/100
-
Hazel (Corylus):
None
0/100
-
Cypress (Cupressaceae):
Low
19/100
-
Grass (Poaceae):
Medium
38/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
High
68/100
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):
Low
5/100
-
Willow (Salicaceae):
None
0/100
-
Mugwort (Artemisia):
Medium
38/100
Air quality in Slagelse
View air qualityFrequently Asked Questions
Is pollen high in Slagelse right now?
On 9 August 2026, overall pollen levels in Slagelse are high. Artemisia is the main contributor to airborne pollen, while grass and cypress remain at lower levels
Will pollen levels change in Slagelse tomorrow?
On 10 August 2026, pollen conditions in Slagelse will be different from today, with artemisia, grass continuing to decline
Is pollen expected to decrease in Slagelse this week?
According to the five-day outlook, artemisia, cypress, and grass pollen levels will increase later in the week.
Which pollen types are currently active in Slagelse?
On 9 August 2026, Artemisia is the dominant pollen source in Slagelse. grass and cypress are also present but at lower levels. hazel and willow are not currently active.
When is pollen season in Slagelse?
How often is the Slagelse pollen forecast updated?
The Slagelse pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Slagelse 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 Slagelse 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 Slagelse, 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 Denmark?
Check pollen in other popular cities:
Data provided by Airmine — Last update: 9 August 2026 at 20:27 CEST (Data is updated four times daily.)
This page provides the latest public pollen forecast for Slagelse.
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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.