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

Summary and Weekly Synopsis

Forecast for 14th - 20th September:  Weed pollen: low. Spores high. Grass low.

Tree Pollen - Low


Tree pollen risk will be low but cedar trees will soon be producing pollen and affecting a small minority of hay fever sufferers where these trees are planted.

 Grass Pollen -  Low

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The grass pollen season is over with only low amounts of grass pollen now in the air.

Fungal Spores - High


Aspergillus and penicillium spores are currently at high levels and will continue to trigger symptoms for several more weeks particularly during any warm and humid conditions. Basidiospores (from mushrooms toadstools and bracket fungi) will be high at times too.

 Weed Pollen - Low


The weed pollen risk has now decreased to low with some nettle pollen still airborne. The risk will fade out completely by the end of September.

Further Information

For more information about this service please contact Dr 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.

Science at Worcester

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.