Pollen information for Styria from 23 April 2026
Sunny weather and heavy pollen count!!!
Dry, mild and predominantly sunny weather conditions are expected for Styria until the beginning of next week. As a result, pollen release and the pollen count will be unhindered. Pollen allergy sufferers must be prepared for days with high levels of pollen
The birch remains the dominant allergen in the air. In the lowlands of eastern and southern Styria, the main bloom is already over and many trees are shedding their catkins. In residential areas, however, ornamental birch species can still release pollen. At higher altitudes in western Styria, there is still great potential for pollen release, meaning that even very high concentrations can be reached there. Birch pollen can be transported from these regions to the lowlands, where it can cause additional stress - especially in the afternoon hours.
The hornbeam has now largely finished flowering, which is why only small amounts of pollen are measured. At the same time oaks and beeches have started to flower. Due to their relationship to the birch family, they can also trigger cross-reactions in sensitive people.
In mountainous regions, pollen from ash, willow and poplar can only be detected in small quantities in the air.
In southern Styria, the manna ash has started to flower, while in the rest of the province it is mainly found as a street and park tree. It is relevant for people with an ash pollen allergy, but produces significantly less pollen than the common ash, as it is mainly pollinated by insects. Nevertheless, sensitised people should avoid the immediate vicinity of these trees.
The lilac is also currently in bloom. As a relative of the ash tree, it can cause cross-reactions. As it is mainly pollinated by insects, the amount of pollen is comparatively low and exposure usually only occurs in the immediate vicinity of the plants. People who are sensitive to olive trees should therefore refrain from placing flowering branches indoors.
The plane tree is currently in full bloom and can lead to noticeable exposure, especially along avenues. At the same time, horse chestnuts are also beginning to blossom, which are particularly important for people who are sensitised to maple pollen.
Rapeseed is also blooming in the fields of Styria. Pollen levels can be significantly higher in the vicinity of these intensely yellow flowering areas, which is why sensitive people should avoid such areas if possible.
In eastern and southern Styria, the number of early-flowering grasses is slowly but steadily increasing. Flowering panicle, tufted and foxtail grasses have already been sighted, so that low to moderate levels of stress can be expected in their vicinity. At higher altitudes, the grasses still need some time to flower.
In addition to the pollen types already mentioned, there is currently also pollen from maple, larch, rushes and cypress plants in the air. However, these only have a low allergenic potential.
Flowering grasses | at |
Bad Aussee | 2026-05-11 |
Bad Mitterndorf | 2026-05-13 |
Bruck/Mur | 2026-05-05 |
Graz University | 2026-05-02 |
Hartberg | 2026-05-02 |
Kalwang | 2026-05-13 |
Kapfenberg airfield | 2026-05-03 |
Leibnitz | 2026-05-01 |
Mariazell/St Sebastian | 2026-05-18 |
Murau | 2026-05-07 |
Ramsau/Dachstein | 2026-05-20 |
Schöckl | 2026-06-01 |
Zeltweg | 2026-05-07 |
Forecast date: 2026-04-23
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 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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