Forecast

The birch blossom is coming to an end in the lowlands, but it is still a burden!

The weather forecast promises us sunny and friendly conditions for the coming days. As a result, the pollen count will reach moderate to high concentrations again. Only on Monday may there be isolated precipitation in the Bludenz area, providing short-term relief for allergy sufferers.

In Vorarlberg the birch continues to be the main allergen in the ambient air. In the valleys, flowering is already coming to an end and the birch trees are beginning to shed their catkins. At higher altitudes, however, they still have the potential to release pollen. The flowering of the hornbeam is also coming to an end and only low concentrations were detected in the pollen spectrum.

The walnut the oaks and the beeches bloom in Vorarlberg. Due to their relationship to the birch family, they can also trigger cross-reactions in sensitive people.

Pollen from ash, willow and poplar may still be present in low concentrations in the ambient air.

The lilac is in bloom. As a close relative of the ash tree, it can also cause cross-reactions. However, as it is mainly pollinated by insects, the amount of pollen released is relatively low and usually only significant in the immediate vicinity. People who are sensitive to olive trees should therefore refrain from placing flowering branches indoors.

The plane tree a popular park and avenue tree, is in full bloom in Vorarlberg. Particularly along avenues of plane trees, this can lead to sometimes intense stress.

In the lowlands, the number of early flowering grasses slowly but steadily increasing. Flowering panicle, tufted and foxtail grasses have already been sighted, so that low to moderate levels of stress can be expected in their vicinity. At higher altitudes, the grasses still need some time to flower.

In addition to the pollen types already mentioned, pollen from maple, larch, sour grasses and cypress plants are present in the air. However, these only have a low allergenic potential.

Forecast from 2026-04-20

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.