Forecast

Birch continues to cause a high pollen load in Lower Austria!

It will remain mostly cloudy and mild in Lower Austria in the coming days. On Thursday, Saharan dust may increase the pollen load. In addition, isolated rain showers will fall locally. These will usually not be very heavy and therefore have little influence on the pollen load. For pollen allergy sufferers, this means continued days with a high pollen load. On Sunday, it should rain from the Waldviertel to the Schneeberg. Depending on how heavy the precipitation is, it could provide some relief for allergy sufferers.

In Lower Austria, the birch continues to be the main allergen in the ambient air. In the Danube region, the Weinviertel and the Vienna Basin, the first birch trees have already exhausted their flowering potential and shed their catkins, but late-flowering birch trees and birch trees at higher altitudes continue to cause high pollen concentrations. The birch pollen season will therefore continue for some time yet.

The flowering of the hornbeam has already passed its peak and will only cause a low to moderate pollen load in the coming days. Due to cross-reactions, it can increase the burden for allergy sufferers who are sensitised to birch plants such as birch, alder and hazel.

Also oak and beeches are also beginning to flower. As they are related to the birch family, cross-reactions can also occur in sensitive people.

In the higher altitudes of the industrial, cider and forest districts, the ash, poplar and willow have exhausted the majority of their flowering potential. They can be present in low to moderate concentrations in the pollen spectrum and are a nuisance.

The lilac is now in bloom. As a relative of the ash tree, it can trigger similar reactions, but produces significantly less pollen as it is pollinated by insects. Exposure therefore occurs mainly in the immediate vicinity. Anyone who is sensitive to olive trees should avoid flowering branches indoors.

The plane trees are now in full bloom. This popular park and street tree can cause intense stress in the coming days.

In climatically favoured locations, the first flowering panicle grasses have already been sighted. These early starters can already trigger the first symptoms in sensitised people in their immediate surroundings.

In addition to the pollen types already mentioned mapleyews, larches, sour grasses and cypress plants are also represented in the pollen spectrum. However, they only have a very low potential for allergic reactions.

Forecast from 2026-04-16

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.