Heat guidance update

The government cautions that fans may be ineffective in extreme heat, urging shading, hydration, and ventilation instead.

Warning not to use electric fans during 35C heatwaves

Temperatures are rising with the Met Office forecasting 31C on Friday after a 33C day in parts of Britain, marking the fourth heatwave this summer. The government warns that electric fans lose cooling power once the air temperature passes 35C and could do more harm if misused. UK homes are often not built to stay cool, with thick brickwork, heavy glazing and limited air conditioning in many houses.

Officials say shade windows, boost airflow, hydrate, and take cold showers to stay safe. Fans simply move air and do not lower room temperature in extreme heat, the guidance notes. The advice fits a longer trend: climate change is pushing summers hotter, so communities will need better cooling and housing strategies.

Policy note: The advice shifts responsibility from gadgets to housing and public health planning. It hints at a bigger project: making homes cooler and protecting vulnerable people. Without widespread air conditioning, the country may need to rethink building standards and cooling infrastructure.

Equity and budget are at stake. Renters and residents in older, poorly insulated homes are likely to bear the heaviest burden while wealthier households weather the heat more easily. The piece suggests a path forward that requires funding for housing upgrades, public heat warnings, and targeted support for at risk groups.

Highlights

The heat era presses on and policy must move faster.