Forecast

Moderate pollen levels at the start of the week, with relief from the rain from Wednesday onwards!

The week begins with pleasant, sunny weather, and temperatures will once again rise to over 30 °C. Whilst these conditions are ideal for pollen dispersal, the majority of plants have already passed their peak flowering period, and pollen concentrations are mostly low or, at most, moderate. The pollen spectrum has revealed the presence of ragweed, grasses, stinging nettle, plantain and cypress. From Tuesday evening, thunderstorms will reach Vorarlberg, turning into heavy rainfall on Wednesday. This will significantly reduce pollen levels.

Ragweed is highly allergenic, meaning that even a few pollen grains per cubic metre of inhaled air can trigger symptoms. Ragweed is found in Vorarlberg along the main transport routes in the Rhine Valley. Canadian goldenrod is also in bloom. For people with allergies who are sensitised to mugwort or ragweed, Canadian goldenrod can trigger cross-reactions.

Concentrations of fungal spores remain at a high level typical for late summer. Following rainfall, fungi release increased amounts of spores, which can lead to short-term spikes in spore levels.