Global temperatures reached their second-highest July levels on record, while average sea-surface temperatures also hit a new high for the month, the World Meteorological Organization (WMO) reported Tuesday.
Western Europe experienced its hottest June-July period on record, with extreme heat continuing into August and some countries now facing their fourth heatwave since May, the WMO said.
According to the UN agency's statistics, Japan and the Republic of Korea registered record-breaking heat last week, with high temperatures affecting other parts of Asia and some areas of Latin America. In west Africa, parts of the region saw intense monsoon rainfall and flooding.
From January through the end of June, about 82 percent of the world's oceans experienced marine heatwaves of varying intensity.
The organization also highlighted the surge in wildfire activity across western Europe last month. In France, 2026 could become one of the most severe wildfire years in the past 24 years, while Spain has also recorded fire activity well above the seasonal average. Severe wildfires were also reported in parts of the western United States and Canada.
John Kennedy, head of Climate Information at the WMO, said that high-pressure systems are typically associated with high temperatures and dry conditions, while low-pressure systems tend to bring cooler and wetter weather, adding that such high-pressure patterns can persist for days or even weeks, as seen this year.
"Extreme heat is becoming more frequent, more intense. It's lasting longer and covering much wider areas than in the cooler climates of the past. Looking back in time, June 1976 is a really good example because June 1976 had a very similar pattern of high and low pressure, warmer and cooler areas to this year. The picture for 1976 is one of a few isolated areas above average temperatures in a much cooler world. In 2026, the picture is reversed. It's one of a much warmer world, with a few isolated areas of below average temperatures," said Kennedy.
World records second-warmest July: WMO
World records second-warmest July: WMO
