Story perspectives

September 2025: Record Heat Sparks Global Flooding Crisis

10/10/2025

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Summary

Story summary

In September 2025, global surface temperatures reached 16.11°C, the third warmest September on record per the Copernicus Climate Change Service (C3S), 1.47°C above pre-industrial levels.
The global ocean average sea surface temperature was 20.72°C, reflecting elevated warmth.
Heavy rainfall and flooding affected Europe, North America, and Asia, driven by warm atmosphere and ocean conditions.
The warming trend is attributed to greenhouse gas emissions, overshadowing natural climate cycles.

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Story summary

In September 2025, global surface temperatures reached 16.11°C, the third warmest September on record per the Copernicus Climate Change Service (C3S), 1.47°C above pre-industrial levels.
The global ocean average sea surface temperature was 20.72°C, reflecting elevated warmth.
Heavy rainfall and flooding affected Europe, North America, and Asia, driven by warm atmosphere and ocean conditions.
The warming trend is attributed to greenhouse gas emissions, overshadowing natural climate cycles.