Hunga Tonga

2023 was warmest year on Earth since direct observations began. In Berkeley Earth’s analysis 2023 was 1.54 °C above our 1850-1900 average, making it the first year above 1.5 °C. The extreme heat was due to a combination of natural and man-made factors, including global warming and an emerging El Niño event. 17% of the Earth’s surface had a locally warmest year, affecting 2.3 billion people, including significant parts of Asia, South and Central America.

Globally, September 2023 was the warmest September since record-keeping began in 1850, breaking the previous record by a enormous margin. 2023 is virtually certain to become a record warm year, and likely to be 1.5 °C above preindustrial.

Globally, August 2023 was the warmest August since record-keeping began in 1850, breaking the previous record by a large margin. El Niño is underway and strengthening, and 2023 is virtually certain to become a record warm year.

Globally, July 2023 was the warmest month since record-keeping began in 1850. El Niño is underway and strengthening, and 2023 is virtually certain to become a record warm year.