We produce and supply the pollen forecasts for the UK in conjunction with the Met Office.

Summary and Weekly Synopsis

Forecast for 18th to 24th of May: Grass pollen at low to moderate risk. Tree & weed pollen and spores low risk.

Tree Pollen - Low



The tree pollen is now in decline and the risk will be mainly low. 


Grass Pollen - Moderate



Early-flowering grass species are now producing pollen across the country with moderate risk during days with temperatures in the high teens or above particularly in rural areas. The main season won't start until later in May or early June  when the majority of sufferers will start to be affected.

Fungal Spores - Low


The spore risk will be generally low this week. Basidiospores, aspergillus/penicillum and some Cladosporium will be airborne.

Weed Pollen - Low 



Plantain and a little nettle pollen are currently airborne but the risk will be low.

Further Information

Further information on this service can be obtained from Beverley Adams-Groom on 01905 855411.

Forecasts are available on a regional basis to cover the whole of the UK including Northern Ireland and the Republic of Ireland. They can also be provided in detail for individual regions.

Daily pollen forecasts are issued from the middle of March to the end of August. 

Fungal spore forecasts are available from the University of Worcester from September to early October. Please contact Beverley on the number above for details.

Daily forecasts are featured in newspapers, on radio, on television and various web pages.

All the forecasts are based on information from the quality controlled data produced by the National Pollen Monitoring Network, combined with the information from weather forecasts, local vegetation and typography types and information about biological factors and the weather in the preseason period that influences the amount of pollen produced.

If you are interested in the science behind the pollen forecast you may be interested in our science degrees. We also offer tours of our Pollen Labs as part of our Open Days.