Forecast

Sunny days and high pollen count!

The weather conditions remain favourable this week with plenty of sunshine and temperatures between 10 and 15 °C. For pollen allergy sufferers, however, this means days with a high pollen load. Please take appropriate precautions before going outside.

In the lowlands of Vorarlberg, the hazelnuts have already passed the peak of their flowering period. At higher altitudes, however, they still have the potential to release pollen. In parks and gardens, the flowering of the tree hazel is now largely replaced by that of the corkscrew hazel, which increases the local pollen load. This week, people who are sensitised to hazel must expect a high pollen load.

The native alders in the Rhine Valley are now in full bloom. Pollen allergy sufferers who are sensitised to these trees must be prepared for days with a high pollen load. Particularly dense populations can be found near rivers and lakes. Very high pollen concentrations can even be reached here locally, which is why these areas should be avoided by allergy sufferers.

Hazel and alder are closely related to birch. People who are sensitised to birch can therefore be affected by cross-reactions.

In addition to alder and hazel, yew, poplar, willow, elm and cypress have been detected in the pollen spectrum. In the lowlands of Vorarlberg, the pollen load to be expected from these early bloomers is low to moderate.

From a current perspective, the data from our birch flowering readiness model indicates that this will be reached in mid-March.

Forecast from 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.