September Equinox in Cook Islands

In 2026, September Equinox falls on Tuesday, 22 September 2026.

seashore during golden hour
Photo by Sean Oulashin on UnsplashUpdated 15 Jul 2026

About September Equinox

The September Equinox marks the moment the sun crosses the celestial equator, resulting in nearly equal day and night across the globe. In the Cook Islands, this astronomical event is observed as a cultural and seasonal marker of the transition toward the warmer months. While not a public holiday, it is acknowledged for its significance in agricultural planning and natural cycles.

September Equinox dates in Cook Islands

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

22 Sep 2023

Friday · September Equinox

2023

22 Sep 2024

Sunday · September Equinox

2024

22 Sep 2025

Monday · September Equinox

2025

22 Sep 2026

Tuesday · September Equinox

2026

22 Sep 2027

Wednesday · September Equinox

2027

22 Sep 2028

Friday · September Equinox

2028

22 Sep 2029

Saturday · September Equinox

2029

22 Sep 2030

Sunday · September Equinox

2030

22 Sep 2031

Monday · September Equinox

2031

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