April sea surface temperatures were second-highest on record
April 2026 underscored the planet’s persistent warmth, delivering the second-highest sea surface temperatures ever recorded for oceans outside the polar regions.
Across broad stretches of the tropical Pacific, sea temperatures hit record highs, driven by intense marine heatwaves.
The global average surface air temperature reached 14.89°C. That placed the month 1.43°C above pre-industrial levels for April.
According to the EU Copernicus Climate Change Service, that made April the joint third-warmest April recorded worldwide.…