Forecast

Ash pollen count picks up speed!

Although there may be light rain showers in the capital for a short time on Thursday, these will probably not be intense enough to bring relief to allergy sufferers. We can therefore expect intense pollen counts during the second half of the week.

Although hazel and alder have already clearly passed their flowering peak, there may still be low to moderate levels of pollen from the early bloomers both in the city and in the recreational areas around Vienna. The hazel pollen concentrations in particular may still increase slightly due to the corkscrew hazel currently in bloom. On the whole, however, the early flowering season is already well advanced.

The situation is different with the ash. Trees in thermally favoured locations are already in full bloom, and many other plants are also showing significant progress in their development. During the second half of the week, moderate to locally high levels are therefore to be expected in the urban area.

The forsythia, which like the ash belongs to the olive family, is also in bloom in many places. However, as it is mainly pollinated by insects, its pollen is rarely released into the air in large quantities. Nevertheless, allergy sufferers should refrain from using flowering forsythia branches as decorations in their homes in order to keep indoor spaces as allergen-free as possible.

The same applies to the pussy willow that can currently be seen in many places. These are the flowers of the willow. Although their pollen is also only classified as moderately allergenic, allergy sufferers are advised not to place these branches in living spaces in order to avoid additional exposure.

In addition to the pollen types mentioned above poplars, elms and yew and cypress plants are represented in the pollen spectrum. However, they only have a very low potential for allergic stress.

Forecast date: 2026-03-12

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.