Forecast

A long weekend with sunshine and a moderate to high pollen load!

The weather forecast for Styria promises sunny and dry conditions. While temperatures will remain below 20 °C on Thursdays and Fridays, we can expect daily highs of up to 25 °C from Saturday. This will hardly slow down the pollen count and the pollen count may fluctuate between moderate and high values.

In the lowlands of eastern and southern Styria, the flowering of the native birches is already over. In residential areas, however, ornamental birch species can continue to release pollen. At higher altitudes in western Styria, the birch trees have not yet fully exhausted their pollen potential. This means that low to moderate pollen concentrations are still possible

The walnut trees, oaks and beeches are in bloom in Styria. Due to their relationship to the birch family, they can also trigger cross-reactions in sensitive people.

Furthermore, the manna ash blooms in southern Styria. It is important for people with an ash pollen allergy, but it produces significantly less pollen than the common ash, as it is mainly pollinated by insects. Nevertheless, sensitised people should avoid the immediate vicinity of these trees. Lilacs are also of interest to this group of allergy sufferers. People who are sensitive to olive trees should refrain from placing flowering lilac branches indoors.

The plane tree blossom is coming to an end and only small amounts of pollen have been detected in our measuring stations. The horse chestnut has reached full bloom in the lowlands of Styria. Due to their similarity, they are not suitable for people who are sensitised to maple pollen pollen.

Rapeseed is also flowering in the fields of Styria. Pollen levels can be significantly higher in the vicinity of these intensely yellow flowering areas, which is why sensitive people should avoid such areas if possible.

Ryegrass, switchgrass, bentgrass and foxtail grasses are already flowering in Styria and are causing the first relevant stress for Grass pollen allergy sufferers. At higher altitudes, the grasses still need some time before they start to flower.

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.

In addition to the pollen types already mentioned, pollen of maple, larch, rush, and cypress plants  is currently also found in the air. However, these only have a 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.