09/17/2026
🌍☀️ **SEPTEMBER EQUINOX — SEPTEMBER 22–23**
Earth reaches one of the most important turning points in its annual journey around the Sun: the September equinox.
At this moment, the Sun appears to cross Earth’s celestial equator from north to south. Neither hemisphere is tilted significantly toward the Sun, allowing sunlight to be distributed more evenly across the planet. From space, the boundary separating day and night appears almost perfectly vertical.
The word “equinox” comes from Latin terms meaning “equal night.” However, day and night are not exactly twelve hours long everywhere. Earth’s atmosphere bends sunlight around the horizon, and the Sun appears as a disk rather than a single point, giving most locations slightly more daylight than darkness.
The September equinox marks the official beginning of astronomical fall in the Northern Hemisphere. Nights will continue growing longer, temperatures will gradually cool and the Sun will follow a lower path across the sky.
At the same moment, astronomical spring begins in the Southern Hemisphere, bringing longer days and increasing sunlight.
One planetary alignment, two opposite seasons and a beautiful reminder that Earth’s axial tilt controls the changing rhythm of the year. 🍂✨
Which season is beginning where you live?
