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

Summary and Weekly Synopsis

Forecast for 20th - 26th July: Grass and weed pollen: high. Spores high.

Tree Pollen - Low


Low amounts of lime tree pollen will be airborne. Sweet chestnut trees also flowering with a generally low risk.

 Grass Pollen -  High



The high grass pollen risk will continue during this week but will start to drop to moderate levels in the last quarter of July. Northern Scotland will have a moderate risk.

Fungal Spores - High


High risk for Alternaria during good weather. Cladosporium will remain in the air with a moderate to high risk. Spores that prefer warm humid nights will be airborne - these types can trigger asthma as well as other allergic respiratory symptoms.

 Weed Pollen - High


The weed pollen risk will be moderately high on warm weather days and low to moderate on the cooler or showery days. Northern Scotland will have a low risk.

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.