Forecast

Spring-like temperatures and an intense alder and hazel pollen count!

Last week's cool, rainy weather provided some relief for allergy sufferers. However, this will change this week. Localised rain showers on Monday and Tuesday may dampen the pollen release somewhat, but where the sun comes through, the pollen concentrations in the surrounding air increase. From Wednesday, sunshine and temperatures above 10 °C will set in from the Waldviertel to the Schneeberg. These weather conditions will lead to intense exposure to hazel and alder pollen.

From the lowlands to the middle altitudes of the Waldviertel and the Limestone Alps, the native shrub hazels are ready to flower. The tree hazels in parks and gardens are also in bloom, which can lead to increased exposure to hazel pollen locally.

In Lower Austria, the grey alders are already ready to flower. With the temperatures predicted for this week, the number of black alders ready to flower will also rise sharply. The purple alder has already dusted and is shedding its empty catkins.

The cold temperatures and precipitation of recent weeks have hindered the release of pollen from hazels and alders in Lower Austria. With the coming improvement in the weather and rising temperatures, many alder and hazel individuals will now release their pollen at the same time. From Wednesday at the latest, pollen allergy sufferers must therefore be prepared for high pollen concentrations of alder and hazel and should take appropriate precautions before going outdoors.

Forecast date: 2026-02-23

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.