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

Weekly pollen forecast and summary

Forecast for 14th - 21st May 2021: Pollen: tree pollen high risk. Spores: moderate.

Grass Pollen Count - Low

Low amounts of grass pollen from the first species of the season, meadow foxtail and sweet vernal grass. These will trigger a few sneezes for some people during any warm sunny weather. Start preparing now for the main grass pollen season. New regional pollen calendars are now available

Tree Pollen Count - High


High risk for oak pollen and a moderate risk for birch pollen, which is now in decline. Highest risk for oak in central and southern regions of the UK.

Fungal Spore Levels - Low

Fungal spore levels will remain moderate for Leptosphaeria, which will trigger symptoms in some people after wet weather. Visit our fungal spore webpage for more info.

Weed Pollen Count - Low

Pollen forecast for weeds with a low green pollen count.

Plantain is now releasing pollen but the risk will be generally low. 

Further Information

For more information about this service please contact Dr Beverley Adams-Groom on 01905 855411 or via email.

Pollen 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 and spore forecasts are issued from mid-March to early October

Daily pollen 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 pollen count.

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.