When Is Equinox 2025. Noaa) when is the first day of fall in 2025? Autumnal equinox, also know as fall equinox is going to occur on september 22, 2025.the word equinox comes from latin which means equal night.


When Is Equinox 2025

This year, it falls on sunday, sept. If you want to be extra specific and put it on your calendar, then mark it for 5:44.

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