Forecast

Early bloomers continue to cause peak symptoms!

The trend from last weekend will continue during the first half of the week and cause allergy sufferers a lot of discomfort. Although it will still be overcast and cooler than before during the first few days of the week, especially in eastern Austria, the early bloomers will still cause intense pollen counts. In the west of the country, more hours of sunshine are expected during the first half of the week - and with it, unrestricted pollen count.

In the lowlands and valleys, most tree and shrub hazelnuts have already reached the peak of their bloom and in some climatically favoured locations have even exceeded it. However, the pollen concentrations detected in the ambient air will continue to cause intensive pollution. This is especially true as some gardens have already started to bloom with corkscrew hazel.

In addition to hazel, grey alder and black alder are now also blooming in large parts of the country. In some places, alder pollen has already replaced hazel as the frontrunner in the pollen spectrum and is causing high levels of stress.

In the higher altitudes of Austria, the vegetation period of the plants is somewhat delayed and currently still offers a good alternative for allergy sufferers. However, allergy-relevant pollen counts can also be expected here soon, albeit not as intense as in the valleys or lowlands.

As in previous years, the flowering of hazel and alder will be followed by that of birch. Based on our flowering readiness model, which has been providing initial forecast data since the beginning of March, we can currently expect flowering readiness to be reached between the middle and end of March. Our reference plants have not yet shown any signs that pollen can be released.

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: 2026-03-02

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.