Issued on March 13, 2025
Weather-related relief for pollen allergy sufferers!
After a few days of intense stress for allergy sufferers, a change in the weather with low temperatures, little sun and rain provides relief, at least for the rest of the week.
Allergy sufferers who are sensitized to the pollen of early bloomers will benefit most from this. Although hazel and alder have already passed their flowering peak, moderately strong pollen levels are still possible in appropriate weather conditions. Corkscrew hazel may already be in bloom in some places and increase the allergic load. In the coming days, however, precipitation will ensure a significant reduction in the pollen count and thus provide relief for those affected.
As soon as the weather improves again and the rainfall subsides, an increase in ash pollen count is to be expected! The first moderate concentrations were already measured last weekend, and with the next period of good weather, more plants are expected to flower and may lead to moderate to high levels of exposure in people who are sensitized to pollen from olive trees .
These people should refrain from bringing flowering forsythia, which also belongs to the olive family, into their homes as decoration. Although the flowers are actually pollinated by insects, their pollen can cause allergic reactions in the immediate vicinity of the plants.
From today's perspective, the data from the flowering readiness model for this year's birch season indicates that the plants will be ready to flower in the second half of March, although the data still shows a fairly wide range of fluctuation, which will only decrease as flowering approaches.
Other types of pollen in the ambient air: yew, poplar, roses, elm, willow and cypress. These are of minor importance from an allergological point of view.
Readiness of birch to flower | on the |
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Vienna-Inner City | 22.03.2025 |
Vienna Hohe Warte | 22.03.2025 |
Vienna Schwechat Airport | 22.03.2025 |
Vienna Unterlaa | 22.03.2025 |
Forecast from 13.03.2025
Note: The data shown here are model data for the expected start of flowering. For more detailed information on the expected pollen count, please refer to the text forecasts.
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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