Forecast

Changeable weather, fluctuating pollen load, grass pollen concentrations on the rise!

In large parts of western Styria, the extensive rain has provided relief for allergy sufferers. Eastern and southern Styria were only slightly affected by this rainfall, but it did have an impact on the pollen count and reduced the pollen load somewhat. Changeable weather is expected for the coming days, which means that the pollen count may fluctuate between low and high values.

In the lowlands, the flowering of the native birches is over. The ornamental birches are now also reaching the end of their bloom. At higher altitudes, birch trees can still be found in bloom, releasing pollen. However, these stragglers are only a localised nuisance. Now the green alders are now beginning to flower in their mountainous distribution area.

In large parts of Styria, the following continue to bloom beech, oak and walnut. They have already passed their flowering peak. Due to their relationship to the birch family, cross-reactions can occur.

The plane trees are also fading. In avenues or dense stands in residential areas, however, this tree can continue to be a nuisance. In addition, the horse chestnut and elderberry which, however, are only of minor relevance for allergy sufferers.

Of interest to people who are sensitised to olive trees are the manna ash and the lilac. They are insect-pollinated and therefore produce less pollen than their wind-pollinated relatives. However, allergy-relevant pollen concentrations can occur in their environment and through direct contact.

The grass flowering has now begun and is already causing significant exposure. Even if this is not yet fully reflected in the pollen trap measurement data, the increased pollen concentration in the immediate vicinity of meadows is clearly noticeable. Also dock and plantain have also started to flower and are increasing the pollen load.

Oilseed rape is also flowering in the fields of Styria. The pollen load can be significantly higher in the vicinity of these intensely yellow flowering areas. Sensitive people should therefore avoid these areas if possible.

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 date: 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.