Forecast

Continued peak pollen levels from early bloomers!

The week starts in Vienna with slightly fewer hours of sunshine than at the weekend, and the daily maximum temperatures will also be slightly lower than recently in the coming days. There may even be some rain on Wednesday. Despite all of this, allergy sufferers should still expect intense pollen counts during the first half of the week. If the precipitation turns out to be more intense, short-term relief is possible at best on Wednesday.

The main cause of the current allergic symptoms continues to be the early bloomers, with tree and shrub hazel slowly being replaced by grey and black alder in the pollen spectrum. Black alder in particular is now reaching its flowering stage in its area of distribution, i.e. in riparian forests or near bodies of water, and can release a lot of pollen into the surrounding air due to an above-average number of catkins.

Since this week, the birch flowering readiness model has also been providing initial data. It currently indicates that the birch will be ready to flower between the middle and end of March. As with hazel and alder, these forecast data are still subject to great uncertainty, especially at the beginning, and will become more accurate over time.

In addition to the pollen types mentioned above, the following are also represented in the pollen spectrum: Elm, yew and cypress. However, they only have a very low potential for allergic stress.

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.