Forecast

Alder and hazel are coming to an end, now ash is starting to bloom!

In eastern and southern Styria, rainfall on Thursday provides pollen allergy sufferers with some relief. The pollen concentrations of alder and hazel are falling continuously. Now the ash is in the starting blocks and the first specimens have already begun to dust. This weekend may already see moderate to high levels of this olive tree. From today's perspective, it is expected to continue raining throughout Styria on Monday and provide brief relief.

Only at higher altitudes in Styria do the hazels and alders still have a low potential to release pollen. In the lowlands, both early bloomers are already shedding their catkins. Localised contamination can still occur in parks and gardens due to the end of the corkscrew hazel blossom.

The number of flowering ash trees is steadily increasing in the lowlands of Styria. In the sunny phases of the coming days, moderate to high levels of ash pollen may occur.

The fluffy catkins of the sal willow, popularly known as pussy willow, are also currently in bloom. Their pollen is categorised as moderately allergenic. Allergy sufferers who are allergic to willow and poplar should not place the branches of these pre-Easter heralds of spring in their rooms.

The pollen spectrum includes maple, elm, yew and cypress plants have been detected. The pollen load from these early bloomers is low to moderate.

The catkins of the birch are still firmly closed. Birch blossom is not expected to begin this weekend. From a current perspective, the data from our birch flowering readiness model indicate that this will be reached in the second half of March.

Forecast date: 2026-03-12

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.