Overview
- The UK has entered its third heatwave of 2026 and the UK Health Security Agency has placed multiple regions under yellow and amber heat‑health alerts effective from Wednesday, July 8 to Sunday, July 12 to warn of increased illness and strain on health services.
- The Met Office forecasts widespread daytime highs in the low 30s Celsius with isolated readings of 34–35°C expected in southern and central England later this week.
- Spain’s Aemet has issued red warnings for parts of the country with forecast highs near 44°C and its fire‑risk maps show large areas at extreme risk, prompting travel warnings from the UK Foreign Office.
- Localized U.S. hotspots include Las Vegas, where forecasts show highs around 109–111°F this week, and Central Florida, where a heat ridge plus arriving Saharan dust is likely to drive upper‑90s temperatures, heat‑index values above 108°F and reduced air quality.
- Longer‑range GFS model maps indicate the UK hot spell could last into mid‑July, but national forecasters stress uncertainty; earlier late‑June records, strained services and drought or wildfire concerns mean authorities are urging hydration, cooling measures and care for vulnerable people.