Pollen information for Vienna from 11 September 2025
Rain showers could dampen the pollen count for a short time at the weekend!
As things stand, it will remain dry in Vienna until Friday. Scattered showers may only occur at the weekend, providing more or less relief depending on their intensity.
Ragweed continues to make up the largest part of the pollen spectrum. Although there is already a slight downward trend in the expected pollen concentrations in the air, the symptoms are likely to remain at a high level due to the high allergenicity of ragweed. The wind from southerly to easterly directions is also bringing in pollen from regions that are more heavily infested with ragweed.
In addition to ragweed, mugwort pollen in the ambient air is also likely to increase again. This is due to later-flowering members of this genus, which will begin to flower in the coming days - weather permitting.
The Canadian goldenrod can also still cause pollution. However, as the plant specialises in insect pollination, relevant quantities of pollen grains can only be expected in the air in its immediate vicinity.
The concentration of grass pollen in the ambient air remains low and is probably due to the flowering of reeds in Vienna as well as later flowering grass species such as dog's tooth grass.
Plantain and stinging nettle dust and can cause additional pollution.
Moderate to high concentrations of fungal spores will be reached in Vienna in the coming days. Particularly after the precipitation expected on Tuesday, there may be short-term peaks in contamination.
Other types of pollen detected in the ambient air are hemp, hops and cypress plants. These are of minor allergological significance.
Responsible for the content
AZ Pollenresearch GmbH
im Auftrag des Vereins Österreichischer Polleninformationsdienst in Kooperation mit der GeoSphere Austria.
Dr. med. Markus Berger, Dr. rer. nat. Johannes M. Bouchal und Lukas Dirr, MSc.
Wetterdaten und Prognosen basierend auf synoptischen Daten:
GeoSphere Austria, Bundesanstalt für Geologie, Geophysik, Klimatologie und Meteorologie (ehemals ZAMG).
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