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Pollen forecast

15.5.2026

Alder flowering has ended.

Birch flowering diminishes in the southern and central parts of the country and continues in Northern Ostrobothnia and Kainuu. Flowering has started in southern Lapland and flowering is expected to start in central Lapland within a week. Birch pollen will also continue to be transported to central and northern Lapland.

The first grasses have begun to flower in the warmest habitats of southern Finland. Pollen concentrations are still very low. Grass flowering is expected to begin within a week in warm places in the central parts of the country.

Rain reduces pollen levels in the air.