Pollen Counts in Denmark

Check daily pollen forecasts, the pollen map, seasonal trends, and all the cities we cover in Denmark. Forecasts update every day, so check back regularly during pollen season.

Updated: 31 Oct 2026.

Pollen Map
Pollen Seasons
Pollen Calendar
Covered Places

Denmark Pollen Map

This map shows daily forecasts for the cities we cover in Denmark, updated every day.

Denmark's Pollen Seasons

In Denmark, alder trees release pollen in March. Birch trees follow in April and May. Birch pollen is the most common type across the year, and April is the busiest month for pollen from all plants.

Grass pollen season in Denmark runs through June and July. Olive pollen is also recorded in June. These different plants add to the seasonal mix, while grass pollen can affect people with allergies in Denmark.

Weed pollen appears later in the Danish season. Mugwort releases pollen in July and August, while ragweed pollen is measured in September. The timing shifts from summer toward autumn as these weeds flower each year.

Pollen Calendar for Denmark

Typical pollen calendar for Denmark, averaged across 40 cities from previous years. Alder peaks in March, Birch peaks in April, Grass peaks in June, Mugwort peaks in July, Ragweed peaks in September. Use it to see which months each pollen type usually rises and falls.

	Alder	Birch	Grass	Mugwort	Olive	Ragweed
Jan	0.1	0	0	0	0	0
Feb	5	0	0	0	0	0
Mar	112.5	33.9	0	0	0	0
Apr	6.1	999.9	2.9	0	0.1	0
May	1.4	385.8	41.7	0	0	0
Jun	0	3.6	391.8	4.6	0	0
Jul	0	0.3	282	64.9	0	0
Aug	0	0	69.7	28.2	0	2.4
Sep	0	0	9.5	0.5	0	12.3
Oct	0	0	0.9	0	0	0
Nov	0	0	0	0	0	0
Dec	0	0	0	0	0	0

Values in gr/m³ (pollen grains per cubic metre), averaged across covered cities. Local microclimates vary. Not medical advice.

Places We Cover in Denmark

We publish forecasts for these cities across Denmark. Check the list to see what is near you, or view them on the Denmark Pollen Map above.

Capital Region

Central Jutland

North Denmark

Other

South Denmark

Zealand

Pollen information is for education and planning only. This is not medical advice. Consult a qualified healthcare provider about symptoms or treatment.