Forecast

The weather continues to boost pollen release!

Spring-like temperatures and plenty of sunshine in the second half of the week and especially at the weekend create conditions that allow intensive pollen counts. Allergy sufferers must therefore be prepared for heavy pollen loads throughout the country!

The early bloomers hazel and alder are still mainly responsible for the expected pollen count. While the proportion of hazel pollen has already peaked in large parts of the country due to the progress of flowering and is usually only registered in moderate concentrations in the ambient air, alder pollen can still be found in high quantities. Grey alder and black alder are still in full bloom and are causing high pollen concentrations in the air in the lowlands and valleys. Allergy sufferers should urgently avoid the vicinity of large populations such as those found in riparian forests or along bodies of water in the coming days!

In thermally favoured locations, especially in urban areas, the first local exposure to flowering ash trees may already occur in the coming days. More widespread exposure may then occur next week.

But it's not just the flowering of ash trees that is imminent, as the birch pollen season is also approaching faster than expected. Our model data continues to indicate that flowering will begin between the middle and end of March, and in Upper Austria birch pollen has already been recorded at some monitoring stations. However, widespread exposure is not yet to be expected.

In addition to the pollen types mentioned above, the following are also represented in the pollen spectrum: Elms, poplars, willows, yews and cypresses. However, they only have a very low potential for causing allergic reactions.

Forecast date: 2026-03-05

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.