Forecast

The grass pollen count is rising!

The weather forecast for the long weekend also promises plenty of sunshine and early summer temperatures in Vienna. Although this means ideal conditions for the pollen count, there is no need for peak pollen counts like those caused by the birch blossom in the past few weeks. The birch season is already coming to an end. The grass pollen season on the other hand, still needs a few days before it starts across the board and will only cause low to moderate exposure in the coming days.

Despite the fact that the birch pollen season is already at an advanced stage, allergy sufferers may still experience significant symptoms due to a cross-reaction with pollen from beech and oak pollen.

The blossoming of the plane tree has also largely come to an end. Pollen concentrations that exceed the threshold for allergic reactions are only expected along plane tree avenues or in parks.

The grass pollen season, on the other hand, is in the starting blocks. The first early-flowering representatives, such as panicle grass, couch grass, tufted grass and foxtail grass, can already cause low to moderate exposure in urban areas and in the surrounding areas of Vienna.

The rapeseed fields are also in bloom there. To avoid possible symptoms, pollen allergy sufferers should avoid being near these fields.

The white flakes in the air are the seeds and seed hairs of the poplar. They usually fly at the same time as the grasses start to flower. Unlike grass pollen, however, they cannot cause allergic symptoms.

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. From an allergological point of view, it is not relevant. However, as this pollen is present in high concentrations in the ambient air, it can cause mechanical irritation of the conjunctiva and respiratory tract.

People who are sensitised to the pollen of olive trees must expect symptoms in the coming days, which can be attributed to the blossoming of the manna ashbut also to lilacs in the immediate vicinity.

In addition to the pollen types mentioned, mulberry, horse chestnutsour grasses, walnut and cypress plants are represented in the pollen spectrum. However, they only have a very low allergenic potential.

Forecast date: 2026-04-30

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.