Days Until Fall Calculator

How Many Days Until Fall?

The countdown above shows the exact number of days remaining until the first day of fall — the September equinox. Unlike a fixed holiday, the equinox moves slightly each year (September 22 or 23, and occasionally September 24), so the calculator targets the correct astronomical date and rolls over to next year's equinox once it passes.

The September equinox is the unofficial start of cooler weather, turning foliage, harvest season, back-to-school routines, and everything pumpkin. Knowing exactly how many days remain makes it easy to plan leaf-peeping trips, count down to sweater weather, or simply look forward to the crisp, golden stretch of the year.

Example: viewed on August 1 → about 52 days until fall — the live timer ticks down hours, minutes, and seconds so the season's first cool morning feels closer.

Why Track Days Until Fall?

• Leaf-peeping trips – Peak foliage weekends book up fast, so counting down helps you lock in cabins and drives before the color turns
• Back-to-school prep – The equinox lands right around the start of the school year for many US districts
• Harvest and garden wind-down – Fall is the time to bring in the last crops, plant bulbs, and put the garden to bed
• Sweater-weather wardrobe – Cooler mornings mean it is time to swap shorts for layers, boots, and jackets
• Holiday runway begins – Fall kicks off the long ramp toward Halloween, Thanksgiving, and the winter holidays
• Daylight planning – After the equinox, nights grow longer than days, so outdoor plans shift earlier
• Football and apple-picking season – Tailgates, orchard visits, and pumpkin patches all cluster around early autumn

The Autumn Equinox Explained

An equinox is one of two moments each year when day and night are nearly equal in length everywhere on Earth. At the September equinox the Sun crosses the celestial equator moving south, standing directly above the equator so that both hemispheres receive roughly the same share of daylight.

Because the Sun is heading south, the September equinox marks the start of autumn in the Northern Hemisphere and the start of spring in the Southern Hemisphere. After it passes, nights in the north grow longer than days on the slow march toward the December solstice, the shortest day of the year.

Astronomical seasons like fall are defined by the equinoxes and solstices, so the first day of fall shifts between September 22 and 23 each year. Meteorologists use a simpler system — meteorological fall runs from the fixed dates of September 1 through November 30. Cultures worldwide celebrate the season with harvest festivals, the Pagan feast of Mabon, and the Mid-Autumn Festival with its mooncakes.

Fall Countdown by Month

Here is roughly how many days until the next first day of fall from various points in the year:

• January 1 — approximately 264 days until fall
• February 1 — approximately 233 days until fall
• March 1 — approximately 205 days until fall
• April 1 — approximately 174 days until fall
• May 1 — approximately 144 days until fall
• June 1 — approximately 113 days until fall
• July 1 — approximately 83 days until fall
• August 1 — approximately 52 days until fall
• September 1 — approximately 21 days until fall
• September 22 — the equinox: fall begins
• October 1 — approximately 356 days until next fall
• November 1 — approximately 325 days until next fall
• December 1 — approximately 295 days until next fall

Frequently Asked Questions