Forecast

Short pause in the pollen season, pollen levels expected to rise again!

Following last week’s report, when alder and hazel were in full bloom and pollen levels reached moderate to locally high values, the situation has temporarily eased. Over the past few days, cold temperatures, cloudy conditions and snowfall have considerably reduced the pollen release. As a result, pollen concentrations have declined, and many individuals sensitive to alder and hazel have experienced fewer or milder symptoms. The coming weekend is expected to follow a similar pattern, with continued low pollen levels and a reduced allergenic burden. However, this temporary relief is unlikely to persist, as weather conditions are forecast to improve next week, which may lead to renewed pollen release.

Alder pollen: Alder pollen concentrations are currently low due to the unfavourable weather conditions. However, with improving weather expected next week, levels are likely to rise again and may reach moderate values.

Hazel pollen: Hazel pollen release has also decreased in the recent days. With forecasted milder temperatures and increasing sunshine next week, concentrations are expected to rise to moderate and locally high levels, depending on the location.

Other pollen types: In addition to alder and hazel, first pollen from the cypress family (Cupressaceae) are now being detected in small amounts.

Situation at higher altitudes: At higher elevations, vegetation development remains delayed. No relevant pollen load is expected there, and no allergenic risk is currently present.

The current cold spell is providing a short period of relief. However, as temperatures increase and sunny spells return next week, pollen release is expected to intensify again, particularly in lowland areas. Individuals sensitised to alder and hazel pollen should be prepared for a renewed increase in exposure.

We will continue to closely monitor the situation and provide you with weekly updates as the season progresses.