When Does Fall Start 2025 , When Does Fall Start 2025. The official first day of fall is officially sunday, september 22, 2025. It marks the start of winter in the northern hemisphere and summer in the southern hemisphere. The start of fall will be at. This year, it falls on sunday, sept. When Does Fall Start 2025 Images References : 2025
When Does Fall Start 2025. The official first day of fall is officially sunday, september 22, 2025. It marks the start of winter in the northern hemisphere and summer in the southern hemisphere. The start of fall will be at. This year, it falls on sunday, sept.