How hot is the ocean? Sea surface temperatures in many areas outside the polar regions have been warmer than normal since March. In April and May, they were highest on record for those months in a ...

Water temperatures have surged above 85 degrees in the Mediterranean Sea, where records have been broken every day for weeks.

To call what’s happening in the oceans right now an anomaly is a bit of an understatement. Since March, average sea surface temperatures have been climbing to record highs, as shown in the dark ...

Shown are sea-surface temperature anomalies, or how much the water temperature deviates from normal, across the Gulf of Mexico. The waters there are nearly as warm in June 2025 as they were just ...

The sea surface temperatures that fueled Hurricane Beryl are typically expected in September, not June. Human-caused climate change made these temperatures 100–400 times more likely.