Forecast

Rainfall provides relief, grass pollen gains relevance!

It continues to rain in Vorarlberg on Thursday. This is a relief for pollen allergy sufferers, as the rain washes the pollen out of the air and prevents already deposited pollen from being stirred up again. From Friday onwards, the weather will become friendlier again, but afternoon thunderstorms may occur at the weekend. During the sunny periods, the pollen count may pick up again and reach a moderate level.

The extensive rainfall has greatly dampened the intensive tree pollen count. Beech, oak and walnut now have little potential to release further pollen and usually only reach low concentrations. The plane tree blossom is over and the horse chestnut has passed its flowering peak. Now the elder to blossom.

At higher altitudes, there are only a few birch trees still in bloom, which are only a nuisance locally. Now the flowering of the green alders. Their main impact is in their sub-alpine distribution area. However, if the wind direction is right, their pollen can also be transported to the valleys and cause discomfort there.

The pollen season is now switching from trees to herbaceous plants.

At our measuring station in Feldkirch, the early-flowering grasses are becoming increasingly important. These include panicle grass, couch grass, tufted grass and foxtail grass. The first flowering grasses can also be found at altitudes above 1,000 metres; however, the impact here is lower than in the valleys. In addition dock and plantain have started to flower.

Oilseed rape continues to flower. Pollen levels are significantly higher in the vicinity of fields and should be avoided by sensitive people.

In addition to the types of pollen already mentioned, pollen from sour grasses, legumes,  members of the rose family, rushes, and cypress plants are also present in the air. However, these only have a low allergenic potential.

Forecast from 2026-05-07

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.