September Equinox in Mongolia

In 2026, September Equinox falls on Wednesday, 23 September 2026.

brown grass field near snow covered mountains during daytime
Photo by Bolatbek Gabiden on UnsplashUpdated 16 Jul 2026

About September Equinox

The September Equinox marks the astronomical transition into autumn in the Northern Hemisphere, including Mongolia. While not a public holiday, it is observed as a significant seasonal change in the natural cycle. Many communities mark the event by acknowledging the shift in weather and the approaching harvest season.

September Equinox dates in Mongolia

Observance dates for September Equinox across a 10-year window (2023-2031).

23 Sep 2023

Saturday · September Equinox

2023

22 Sep 2024

Sunday · September Equinox

2024

23 Sep 2025

Tuesday · September Equinox

2025

23 Sep 2026

Wednesday · September Equinox

2026

23 Sep 2027

Thursday · September Equinox

2027

22 Sep 2028

Friday · September Equinox

2028

23 Sep 2029

Sunday · September Equinox

2029

23 Sep 2030

Monday · September Equinox

2030

23 Sep 2031

Tuesday · September Equinox

2031

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