With El Niño, 2026 could become the second hottest year on record

Furthermore, it is considered “almost certain that the year 2026 will exceed the 1.5°C limit compared to pre-industrial average levels, making it the second calendar year to surpass the ceiling, after 2024,” the observatory adds in its statement.

With El Niño, 2026 could become the second hottest year on record

TL;DR

  • 2026 is expected to be the second hottest year on record, with a 20% chance of exceeding 2024.
  • It is almost certain that 2026 will surpass the 1.5°C warming limit compared to pre-industrial levels.
  • October 2026 was the warmest October on record globally.
  • Sea surface temperatures also reached record levels for October.
  • The tropical Pacific experienced record sea surface temperature anomalies due to El Niño.