Punishing Heatwaves Grip Europe and US; Global Oceans Break June Temperature Record

Europe experienced a severe and record-breaking heatwave throughout June 2026, with numerous countries reporting unprecedented high temperatures. Nations including France, Spain, Germany, the UK, Hungary, and Slovakia saw daily and all-time June records shattered, leading to widespread alerts and significant public health concerns.

Concurrently, a dangerous and prolonged heatwave gripped the central and eastern United States in late June, placing over 100 million people under various heat advisories. Temperatures frequently surpassed 38°C (100°F), with humidity pushing "feels like" temperatures even higher, posing substantial health risks and straining infrastructure, coinciding with major national events like the FIFA World Cup and Independence Day celebrations.

Adding to these extreme land-based conditions, global average sea surface temperatures reached their highest recorded levels for June in 2026, surpassing previous records from 2023 and 2024. Experts attribute this widespread warming to ongoing human-induced climate change, intensified by the emerging El Niño phenomenon, and forecast that more temperature records are likely to fall in the months ahead, signaling escalating climate challenges worldwide.