A Heat-Health Watch system operates in England and Wales from 1
June to 15 September each year in association with the Department
of Health and the Welsh
Assembly.
The Heat-Health Watch system comprises four levels of response based upon threshold maximum daytime and minimum night-time temperatures. These thresholds vary by region, but an average threshold temperature is 30 °C by day and 15 °C overnight.
Current watch level: Level 1 - Summer Preparedness
Issued at: Friday 3 July 2009 at 11:51
Temperatures are not expected to reach heatwave threshold values until further notice.