The official first day of fall in the Northern Hemisphere falls on Monday, September 22, 2025. This marks the autumnal equinox. On this day, day and night are nearly equal in length, as the Sun crosses the celestial equator moving southward. The autumnal equinox is an astronomical event that marks the start of autumn or fall. In the Northern Hemisphere, the autumnal equinox occurs in September; in the Southern Hemisphere, it occurs in March. The months for fall in 2025 are September, October, and November, according to the meteorological definition of the season. The First Day of Fall 2025 brings with it cooler days, vibrant foliage, and the start of harvest season across many parts of the world. From cultural celebrations to seasonal changes, the Autumnal Equinox is more than just an astronomical event; it’s a time of balance and renewal. Read on to know the First Day of Fall 2025 date, timings, and traditions associated with this special day. Happy First Day of Fall Wishes and Autumnal Equinox Images: Welcome Autumn With These WhatsApp Messages, Greetings, Quotes, GIFs and HD Wallpapers.

The autumnal equinox, also known as the fall equinox, marks the beginning of astronomical autumn in the Northern Hemisphere and astronomical spring in the Southern Hemisphere. During the equinox, the Earth's axis is neither tilted towards nor away from the sun, resulting in nearly equal hours of daylight and darkness worldwide. First Day of Autumn Greetings and HD Images for Free Download Online: Wish Happy Fall With Messages, Wallpapers, Photos and GIFs To Mark the Start of Autumn.

This transition signals the beginning of cooler weather, shorter days, and the gradual shift into the winter season for countries north of the equator. Hence, the first day of fall this year is on Monday, September 22, 2025. However, the same astronomical event has the opposite effect in the Southern Hemisphere, where it marks the start of spring.

First Day Of Fall In 2025

The First Day of Fall in 2025 falls on Monday, September 22, 2025.

As the Sun moves into the Southern Hemisphere, in countries like Australia, South Africa, and Argentina begin to welcome longer days, warmer temperatures. The equinox highlights how the Earth’s tilt and orbit around the Sun create distinct seasonal experiences across hemispheres.

First Day of Fall Significance

The First Day of Fall, marked by the Autumnal Equinox, signifies a moment of perfect balance when day and night are nearly equal in length. It represents the transition from summer to autumn in the Northern Hemisphere and is associated with themes of harmony, harvest, reflection, and preparation for the cooler months ahead.

First Day of Fall Traditions and Celebrations

The First Day of Fall, marked by the Autumnal Equinox, is celebrated in many cultures with rituals symbolising balance, harvest, and gratitude. In several parts of the world, communities gather for festivals honouring the changing seasons, enjoy autumn foods, and take part in traditions like bonfires, feasts, and seasonal décor. The day is often seen as a time for reflection, renewal, and harmony with nature.

This global contrast underscores the interconnected yet diverse nature of Earth’s seasons. While people in the Northern Hemisphere may celebrate harvest festivals, enjoy autumn colours, and prepare for winter, those in the Southern Hemisphere embrace outdoor activities, flowering landscapes, and the anticipation of summer. The September equinox, therefore, is not just an astronomical event but a reminder of the cyclical rhythm of life shared across the planet.

(The above story first appeared on LatestLY on Aug 23, 2025 10:38 PM IST. For more news and updates on politics, world, sports, entertainment and lifestyle, log on to our website latestly.com).