Forecast

Changeable weather conditions are causing fluctuating pollen levels!

Monday will still bring showers to Vienna, offering some temporary relief for allergy sufferers. From Tuesday onwards, the sun will prevail and rainfall is unlikely. Allergy sufferers should therefore prepare for persistently high pollen counts. The main allergen in Vienna remains ragweed, which can cause high pollen counts in dry and sunny conditions.

Ragweed pollen is highly allergenic and can trigger significant allergic reactions even in the smallest quantities. As winds are predominantly expected from the north and west, long-distance transport from southern and south-eastern Europe is not anticipated for the time being. Nevertheless, local Viennese populations will cause moderate to high levels of pollen on dry, sunny days.

Common mugwort has also largely finished flowering in Vienna; significant pollen levels are limited to the immediate vicinity of large stands. However, as annual mugwort and Kamchatka mugwort are beginning to flower sporadically, they may cause a second peak in pollen levels in some regions. Cross-reactions with ragweed are possible.

People with grass pollen allergies may experience symptoms again due to the flowering of reeds. As reeds are late bloomers and do not reach flowering until September, grass pollen concentrations may rise once more around certain ponds in the capital. As the wind is predominantly blowing from the north or west, long-distance transport of reed pollen from Lake Neusiedl to Vienna is not expected for the time being.

Fungal spore levels are slowly returning to moderate levels following Monday’s rainfall.

Pollen from stinging nettles, foxtail plants and plantain continues to be present in the pollen spectrum. However, these pose only a low allergenic risk.