Autumn equinox begins in the Northern Hemisphere

The Northern Hemisphere enters autumn at 00:05 Paris time on September 23, 2026.

Published 7sem6 sources✓ ConfirmedImportantupdated 7sem

≈ 16sSpeed

The fact

This astronomical event marks equal day and night duration.

Temperatures and ecosystems will gradually adapt to the new season.

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Auto-synthesis from 6 media sources · identified on September 22, 2026