Forecast

Some rain in the south of Lower Austria, the grass pollen count is increasing!

On Thursday, the south of the industrial district and the Mostviertel will receive some precipitation. This may reduce the pollen load and provide some relief for allergy sufferers. From Friday to Sunday it will be sunny and dry again. This will also increase the pollen count again and we expect a moderate to high pollen load.

The birch blossom is now coming to an end in the Waldviertel and in the mountainous south of Lower Austria. Locally, low to occasionally moderate concentrations can still be reached. Due to their relationship to the birch family, currently flowering walnut trees, oaks and beeches are affected by cross-reactions. However, these trees have also already passed the peak of their flowering, so that the pollen concentrations are decreasing.

At higher altitudes in the Limestone Alps, the flowering of the green alder which causes stress there. With the right wind direction, allergy-relevant amounts of pollen can be transported to the lowlands.

Manna ash and lilacs are also beginning to flower. However, sensitised people should continue to avoid the immediate vicinity of these trees and shrubs.

The flowering of horse chestnuts continues and can affect people who are exposed to maple sensitised to maple. The plane trees are now dusted off and only cause a small amount of discomfort. The elderberry has started to blossom.

Rape is flowering in the fields. People who are sensitised to cruciferous plants should avoid the area around these yellow-flowering fields, as the exposure can be intense.

The grass pollen are becoming increasingly important and are now also detectable in allergenic quantities in our monitoring centres. Cocks foot, tufted, panicled and switch grasses are currently in bloom. The first flowering grasses can also be found at higher altitudes. In the mountains, however, the amount of grasses is still lower than in the lowlands. In the meadow aspect, the following are now also flowering dock and plantain.

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, which is not relevant from an allergological point of view. From an allergological point of view, this pollen 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 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.