Pollen information for Vorarlberg from 4 May 2026
Rainfall provides relief from the middle of the week onwards!
The week begins in Vorarlberg with friendly and dry weather. The first rain showers arrive on Tuesday and become more intense from Wednesday. As long as the sun shines and it remains dry, pollen allergy sufferers can continue to expect a moderate to high pollen count. The precipitation will reduce the pollen load and provide relief for allergy sufferers as the pollen is washed out of the air.
In the higher elevations of Vorarlberg there are still a few dusty birches. Exposure to these stragglers is limited to their local environment. For allergy sufferers who react to birch plants, the current blossoming of the walnut trees, oaks and beeches of interest. Due to their relationship to the birch family, they can cause cross-reactions.
In Vorarlberg, the manna ash and the lilac. As these plants are mainly pollinated by insects, the pollen load is usually low and only noticeable in their immediate vicinity. Anyone who is sensitive to olive trees should not place flowering branches indoors and should avoid the immediate vicinity of these trees and shrubs.
The horse chestnut is now in full bloom and is not suitable for people who are sensitive to maple pollen sensitised to maple pollen. The plane tree blossom has finished in the Ländle and only small amounts of pollen are still detectable in the ambient air.
The early flowering grasses which include panicle, couch grasses, cock's foot grasses and foxtail grasses, are in bloom and are already causing a moderate pollen load. At altitudes above 1000 metres, it will be some time before the grasses start to flower.
Oilseed rape is still flowering. The pollen count is much higher around fields and should be avoided by sensitive people.
Note: At the moment, a yellowish film of dust can be found on car roofs or window sills. This is pollen from conifers such as spruce, pine and fir trees. From an allergological point of view, it is not relevant. However, as this pollen occurs in high concentrations in the ambient air, it can lead to mechanical irritation of the conjunctiva and respiratory tract.
In addition to the pollen types already mentioned, maple, larch, rush and cypress pollen is currently also found in the air. However, these only have a low allergenic potential.
| Flowering grasses | at the |
|---|---|
Alberschwende | 2026-05-12 |
Bludenz | ready to bloom |
Bregenz | 2026-05-07 |
Dornbirn | ready to bloom |
Feldkirch | ready to bloom |
Forecast from 2026-05-04
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.
Responsible for the content
AZ Pollenresearch GmbH
im Auftrag der Vorarlberger Krankenhaus-Betriebsgesellschaft.
Dr. rer. nat. Johannes M. Bouchal und Lukas Dirr, MSc.
Wetterdaten und Prognosen basierend auf synoptischen Daten:
GeoSphere Austria, Bundesanstalt für Geologie, Geophysik, Klimatologie und Meteorologie (ehemals ZAMG).
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