Amber Extreme Heat Warning Issued for Clacton-on-Sea

An Amber extreme heat warning has been issued for Clacton-on-Sea and the wider Essex area by the Met Office, running from the early hours of Monday through to late Tuesday night. Temperatures are forecast to climb into the low-to-mid 30s on Monday and push further into the mid-30s on Tuesday, with humidity amplifying the discomfort and strain on people and services.

Overnight relief will be limited, with temperatures staying above 20 degrees Celsius in built-up areas. Peak day-time values could reach 35 degrees on Tuesday and again on Wednesday. The Met Office has since widened the warning to cover eastern Wales and much of the Midlands, but Clacton remains within the core zone where heatwave criteria will be met. Deputy Chief Forecaster Steven Keates noted that tropical nights are likely in urban spots, with growing confidence that the June record of 35.6 degrees – set in Southampton during the 1976 heatwave – may fall this week.

The UK Health Security Agency has responded with its own Yellow and Amber Heat Health Alerts, flagging risks to health and social care services. Tendring District Council is directing residents to follow official guidance during the hot spell. Coastal visitors face an additional hazard: sea-surface temperatures remain far below midsummer levels, raising the danger of cold water shock. The Met Office notes that more people are likely to visit coastal areas, lakes or rivers during the hot spell, increasing the risk of water safety incidents. Samantha Hughes, National Water Safety Partner at the RNLI, cautioned that the water is still cold enough to trigger cold water shock, urging people to remember the Float to Live technique.

The Amber warning was first issued on Saturday 20 June and updated the following day. While the Southeast can expect the intense heat to persist through much of the week, forecasters say the picture later on becomes less certain as cloud cover and thunderstorm chances increase.