Pollen information for Vienna from 29 July 2025
Grass pollen and fungal spores cause stress!
The weather forecast for the coming days promises a mix of sun and clouds. However, precipitation should only occur rarely. Allergy sufferers should therefore prepare themselves for days with a moderate pollen count. However, high concentrations of fungal spores are expected in the ambient air!
The grass pollen season has already passed its peak, which is why only low to moderate concentrations of grass pollen can be expected in the ambient air in the coming days.
However, as maize, which also belongs to the sweet grass family, is in bloom in and around Vienna, people with grass pollenallergies must expect increased exposure in the vicinity of these fields. Maize pollen is large and heavy. Therefore, it cannot be transported as far by the wind as the pollen of its relatives and only causes relevant pollen flight in the immediate vicinity of the plants.
On hot and dry days, plantain and dock dust particularly intensively and cause additional pollution. Stinging nettles also flower and their pollen can irritate sensitised people.
The mugwort pollen season is just around the corner. Although only isolated relevant pollen concentrations have been recorded at our measuring point, as more and more plants are being sighted that are ready to flower, it can be assumed that localised exposure may already occur in some places. Dense mugwort populations are generally found on dry grassland and field margins, but also in areas heavily influenced by humans such as road verges. The expected pressures will reach their peak in mid-August.
The rainfall of the past few days and the weather conditions expected for the coming period favour the release of fungal spores into the ambient air. High levels of fungal spore contamination must therefore be expected.
Other types of pollen detected in the ambient air are beeweed, bindweed, hemp, umbellifers, goosefoot, buttercups, cloves and cypresses. These are of minor allergological importance.
The pollen spectrum is currently relatively stable. For this reason, the frequency of text forecasts will be reduced to once a week for the coming weeks. However, our team at polleninformation.at will continue to monitor the situation on an ongoing basis and will, of course, send out appropriate information should there be any changes to the expected pollution. The monitoring centres operated by us and our colleagues will remain active in order to keep all the services provided, such as the hourly allergy risk, up to date.
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).
zum Team