Forecast

More and more hazelnuts are ready to flower!

Particularly in the valleys of western Austria, but also in climatically favoured locations in the lowlands in the east of the country, increasing exposure to hazel pollen must be expected over the course of the week. In addition, especially in the vicinity of landscaped green areas, there will be additional exposure due to the flowering of isolated purple alder.

The precipitation expected in the middle of the week could provide a brief period of relief before the expected impact intensifies again by Friday.

While the local tree and shrub hazels have clearly benefited from the weather conditions of the past few days and a clear leap in development can be seen, the catkins of grey and black alders are also already showing progress, but still need a little more sunshine to reach flowering readiness.

Note: The immune system of pollen allergy sufferers can react particularly sensitively at the start of the pollen season. Birch pollen allergy sufferers could also potentially be affected by the pollen count of "early bloomers" due to cross-reaction.

The flowering readiness model has also shown little fluctuation over the past few days and indicates that flowering readiness will be reached across the board in most federal states by mid-February.

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

Forecast date: 2026-02-09

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.