Forecast

Mild temperatures and heavy pollen count due to hazel and alder!

Temperatures in Styria will remain mild in the coming days. Hazel and alder are still the main allergens. People who are sensitised to these early bloomers must be prepared for days of intense exposure. Although the weather forecast for Wednesday promises precipitation, this will not be extensive and will hardly dampen the pollen load.

In the lowlands of Styria, the hazelnuts are already past their flowering peak, but still have the potential to release pollen. At higher altitudes, however, the hazel has not yet reached the peak of its flowering and is causing high levels of pollution. In parks and gardens, the tree hazel is currently being replaced by the corkscrew hazel. These can continue to increase the pollen load in their surroundings.

In the Mur-Mürz furrow and the lowlands of eastern and southern Styria, grey and black alder are in bloom. Pollen allergy sufferers who are sensitised to these trees must be prepared for high pollen concentrations in the coming days. Dense stands, such as those found in floodplains or near standing water, should be avoided.

Hazel and alder are closely related to birch. People who are sensitised to birch can therefore be exposed to cross-reactions even though it is not yet in flower.

In addition to alder and hazel, pollen from yew, poplar, willow, elm and cypress has also been detected. In Styria, the expected pollen load from these early-flowering plants is low to moderate.

From a current perspective, the data from our birch flowering readiness model indicates that this will be reached in the second half of March.

Forecast date: 2026-03-02

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.