Forecast

Situation and medium-term forecast for

Issued on May 5, 2025

Rain brings relief for pollen allergy sufferers!

After last week's warm, sunny weather and heavy pollen count, this week is starting off rainy with a slight cooling effect. The abundant rain will stay with us for a few days and wash the pollen out of the air. This means that people who are sensitized to pollen can prepare themselves for relief.

The flowering season for birch, beech and ash has now also come to an end at higher altitudes. Some green alder trees are already in bloom. Due to the wet weather in the coming days, hardly any pollen will be transported from the mountainous distribution area of the green alder to the lowlands.

The peak of the oak and walnut blossom is over. Their pollen contains allergens that are very similar to those of birch, alder and hazel. Due to cross-reactions, oak pollen can affect people who are sensitized to birch plants.

Lilac is important for allergy sufferers who are sensitized to olive trees. As it is pollinated by insects, it is harmful in the immediate vicinity or on contact.

In the meadow aspect, the grasses have now started to flower in the lowlands. Due to the rain, grass pollen will only have a low impact in the coming days. Dock and plantain are also in bloom.

In southern Styria, rapeseed is in bloom. Allergy sufferers should avoid being near these fields to prevent possible symptoms.

Other types of pollen in the surrounding air: pine, roses, horse chestnut, sour grasses and cypresses. These are of minor allergological importance.

Flowering grasses at

Bad Aussee

09.05.2025

Bad Mitterndorf

10.05.2025

Bruck an der Mur

ready to bloom

Graz

ready to bloom

Hartberg

ready to bloom

Kalwang

12.05.2025

Kapfenberg

ready to bloom

Leibnitz

ready to bloom

Mariazell

16.05.2025

Murau

07.05.2025

Ramsau am Dachstein

20.05.2025

Schöckl

03.06.2025

Zeltweg

07.05.2025


Forecast from 05.05.2025

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.

Knäuelgras ©ÖPID, Johannes M. Bouchal

Responsible for the content

AZ Pollen Research GmbH
in Kooperation mit dem Institut für Pflanzenwisenschaften der Karl-Franzens-Universität Graz im Auftrag der Steiermärkischen Landesregierung.
Dr. rer. nat. Johannes M. Bouchal, Lukas Dirr, MSc und Mag. Pramod Harvey.

Wetterdaten und Prognosen basierend auf synoptischen Daten: GeoSphere Austria, Bundesanstalt für Geologie, Geophysik, Klimatologie und Meteorologie (ehemals ZAMG).
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