Forecast

High levels of birch pollen!

The coming days will be sunny and sometimes very warm. This means ideal conditions for pollen counts and therefore a very high risk of intense allergic reactions.

The main culprit for the current pollen count is the pollen of the birchwhich is in full bloom in large parts of eastern Austria. Its pollen has already led to very high levels of pollution over the Easter weekend and will remain at this level for the rest of the week.
In the western half of the country, pollen levels are also expected to rise, but the first peak in pollen levels is not expected to be reached until the second half of the week.

In addition to the birch, other representatives of the birch family such as hornbeam or hop hornbeam are ready to flower and can cause additional exposure through cross-reactions, as the allergens of these plants are structurally very similar to those of birch.

The ash pollen season has already passed its peak in the east. In the west of the country, however, it is still underway and can still cause high levels of pollution, while only low to moderate pollen concentrations are expected in the eastern lowlands.

In some thermally favoured locations, the first grasses are already in bloom. These are very localised occurrences that can currently only cause low levels of pollution in the immediate vicinity. The forecast data for the grass pollen season currently indicate that the grasses will be ready to flower at the beginning of May. These data are still subject to major uncertainties at the beginning of the season and will become more precise over time.

In addition to the pollen types mentioned above, maple, yew, poplar, sour grasses and elm are also currently in bloom, elmand cypress plants are represented in the pollen spectrum. However, they only have a very low allergenic potential.

Forecast date: 2026-04-07

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.