Follow the 11am Rule to Stay Safe in the Heat, UKHSA Advises Tuesday, July 21, 2026 ukhsa heatwave sun safety uv protection heat exhaustion heatstroke summer water safety health advice metoffice As summer temperatures rise, the UK Health Security Agency (UKHSA) has reminded families of a simple yet vital guideline to stay safe in the heat: avoid direct sunlight between 11am and 3pm, when UV levels are at their … Read More