September Equinox in Sao Tome and Principe
In 2026, September Equinox falls on Wednesday, 23 September 2026.
Photo by Dan Freeman on UnsplashUpdated 16 Jul 2026
About September Equinox
The September Equinox marks the moment when the sun crosses the celestial equator, resulting in nearly equal day and night. While it is an astronomical event, it is observed as a cultural and natural occurrence that influences seasonal changes globally.
September Equinox dates in Sao Tome and Principe
Observance dates for September Equinox across a 10-year window (2023-2031).
| Year | Date | Day | Holiday |
|---|---|---|---|
| 2023 | 23 Sep 2023 | Saturday | September Equinox |
| 2024 | 22 Sep 2024 | Sunday | September Equinox |
| 2025 | 22 Sep 2025 | Monday | September Equinox |
| 2026This year | 23 Sep 2026 | Wednesday | September Equinox |
| 2027 | 23 Sep 2027 | Thursday | September Equinox |
| 2028 | 22 Sep 2028 | Friday | September Equinox |
| 2029 | 22 Sep 2029 | Saturday | September Equinox |
| 2030 | 22 Sep 2030 | Sunday | September Equinox |
| 2031 | 23 Sep 2031 | Tuesday | September Equinox |
23 Sep 2023
Saturday · September Equinox
22 Sep 2024
Sunday · September Equinox
22 Sep 2025
Monday · September Equinox
23 Sep 2026
Wednesday · September Equinox
23 Sep 2027
Thursday · September Equinox
22 Sep 2028
Friday · September Equinox
22 Sep 2029
Saturday · September Equinox
22 Sep 2030
Sunday · September Equinox
23 Sep 2031
Tuesday · September Equinox
