Pollen information for Austria from 15 September 2025
Changeable weather continues to cause fluctuating pollen concentrations!
While it will still be quite sunny in the east and south of Austria on Monday, precipitation is to be expected from the west to the Salzkammergut. On Tuesday, it will be wet and cold throughout the country before the weather situation stabilises again on Wednesday. This means that pollen allergy sufferers will have to be prepared for significantly fluctuating levels in the coming days - even though the pollen season is coming to an end.
The flowering of ragweed in the east and south of the country continues to cause allergic stress. Although many plants have already passed their peak bloom, as ragweed pollen can trigger allergic symptoms even in the smallest concentrations, allergy sufferers can still expect moderate to severe symptoms. In the vicinity of heavily infested farmland or roadsides, the symptoms can be even more severe. You can check the ragweed map to see where ragweedhotspots are located so that you can avoid these areas during outdoor activities.
Late-flowering mugwort species can now cause a renewed local increase in pollen concentrations and thus renewed allergic stress.
Goldenrod is also still in flower and can cause additional stress for people who are sensitised to the pollen of composite plants, including ragweed and mugwort. However, as the plant is mainly specialised in insect pollination, relevant quantities of pollen grains in the air can only be expected in its immediate vicinity.
The grass pollen season has come to an end on a large scale. Only in the vicinity of bodies of water surrounded by a reed belt can more intensive pollution occur, as this sweet grass species is only now in full bloom. The pollution levels can be particularly high around Lake Neusiedl, which is surrounded by one of the largest reed belts in Europe.
There are still moderate to high concentrations of fungal spores in the ambient air. After precipitation, there may be a short-term increase in contamination. At higher altitudes and above the tree line, the levels of fungal spores are noticeably lower.
The pollen types nettle, hemp, hops, umbellifers, plantain and cypress were also detected in the ambient air. 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)
zum Team