University of Worcester's pollen forecast and fungal spore forecast for the UK.

Weekly pollen and fungal spore forecast summary

 

Forecast to 21st March 2025:  Pollen: Peak period for alder pollen; Spores: Aspergillus/penicillium types moderate/high.

Grass Pollen Count - Low

 Pollen forecast for grass with a low green pollen count.

Grass pollen season will begin in April or May.

Tree Pollen Count - High

 Pollen forecast for trees with a high orange pollen count.

 

Alder pollen will continue for about one more week, at high risk during mild, dry weather. Hazel pollen at moderate risk during dry days (+10C) in northern parts but in decline elsewhere. Birch pollen season is expected to start in early April.

Fungal Spore Levels - High

Pollen forecast for spores with a high orange pollen count.

Aspergillus/penicillium types are expected to increase again this week. Pleospora will be airborne during mild, dry weather. 

Weed Pollen Count - Low

Pollen forecast for weeds with a low green pollen count.

Weed pollen season will begin in April or May.

School of Science and Environment

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