Ocean temperatures hit record highs as El Niño looms The world’s oceans are under heat stress, with average sea surface temperatures hitting 21°C.Share this: Germany braces for record-breaking temperatures as heatwave moves eastDateJune 27, 2026In relation toAl-JazeeraHeatwave scorches east Europe as Slovakia, Czechia see record temperaturesDateJune 30, 2026In relation toAl-JazeeraDeadly heatwave grips Europe as temperatures soar across continentDateJune 23, 2026In relation toAl-Jazeera