Forecast

Unstable weather causes pollen levels to fluctuate!

The tree pollen season is slowly coming to an end in Styria. Herbaceous allergenic plants are becoming increasingly important in the pollen spectrum. The weather remains unstable from Schladming to Leibnitz. The rain brings relief for pollen allergy sufferers, but as soon as the sun comes out again and it dries out again, a rapid increase in exposure is to be expected.

The green alder flowering season has begun. In Styria, this alder species is at home at higher altitudes and can cause intensive pollen flight. In sunny conditions and with the right wind currents, its pollen can also be transported to the lowlands, where it can affect people who are sensitized to birch plants.

The frequency of oak and walnut pollen continues to decrease in the pollen spectrum. Their pollen contains allergens that are very similar to those of birch, alder and hazel and can therefore cause cross-reactions.

In populated areas, the manna ash blossoms and can again cause stress in people who are sensitized to the pollen of olive trees. However, as this tree is mainly pollinated by insects, relevant pollen counts are only to be expected in the immediate vicinity of the plants. This also applies to the currently flowering lilac.

Note: At the moment, a yellowish film can be found on the surface of many lilacs. This is pollen from conifers such as spruce, pine and fir trees, which is often deposited as yellow precipitation on car roofs or window sills. From an allergological point of view, it is not a cause for concern.

Among the grasses, smooth oats, tresps, panicle and tufted grasses are currently in flower. Additional stress in the meadow aspect is caused by dock and plantain.

In southern Styria, rape is in flower. Allergy sufferers should avoid being near these fields to prevent possible symptoms.

Other types of pollen in the surrounding air: elder, spruce, pine, rose, horse chestnut, sour grasses and cypress. These are of minor allergological importance.

Forecast from 08.05.2025

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.