August 2026 was the warmest August recorded globally and tied July 2023 as the hottest month in the Copernicus Climate Change Service dataset, the European climate agency reported Thursday.
The global average surface-air temperature reached 16.96 degrees Celsius, or approximately 62.53 degrees Fahrenheit. That was 0.85°C above the 1991–2020 August average and 1.65°C above the estimated 1850–1900 preindustrial level, according to Copernicus data reported by Reuters and the Associated Press.
WordPress categories: World; U.S.
A global record with U.S. consequences
AP reported that the United States also experienced its hottest summer in the national record, exceeding the benchmark set during the Dust Bowl era of 1936. Western Europe recorded its hottest summer, while prolonged heat and dry conditions affected rivers, agriculture and wildfire risk in multiple regions.
Copernicus attributed the exceptional warmth to the long-term accumulation of heat-trapping greenhouse gases combined with a strong El Niño pattern. El Niño can temporarily raise global temperatures, but scientists cited by Reuters said human-driven climate change remains the underlying cause of the sustained warming trend.
Understanding the 1.5-degree figure
August’s temperature was 1.65°C above the preindustrial estimate. The Paris Agreement’s 1.5°C goal, however, concerns warming sustained over a long period—not the result of one month. The monthly reading is a warning indicator rather than a formal declaration that the treaty threshold has been permanently crossed.
Copernicus said this was the first month since November 2025 with a global average more than 1.5°C above the preindustrial estimate. Sea-surface temperatures outside the polar regions also remained near record levels.
Why the record matters
Global averages translate into local risks through more intense heat waves, heavier rainfall in some regions, drought in others, lower river flows, wildfire conditions and stress on electrical grids, agriculture and public health.
The record does not mean every place experienced its hottest August. Temperature patterns vary by region, and individual disasters require separate attribution studies before scientists can quantify climate change’s role.
What comes next
Scientists will watch whether the strong El Niño persists, how ocean temperatures evolve, and whether 2026 becomes the warmest full calendar year. The eventual annual ranking cannot be established from August data alone.
Future Copernicus, World Meteorological Organization and national climate reports will refine the measurements and assess regional impacts. The September 10 bulletin nevertheless establishes August 2026 as a new August record and a tie for the warmest month in the agency’s observational dataset.
Sources: Copernicus Climate Change Service, Reuters and Associated Press, September 10, 2026.
