Until fall begins on September 22, 2026
Tuesday, September 22, 2026
When Is Fall 2026?
Fall begins on Tuesday, September 22, 2026 with the autumnal equinox. This astronomical event marks when the Sun crosses the celestial equator moving southward, creating equal hours of daylight and darkness across the globe.
The fall equinox signals the transition from summer to autumn in the Northern Hemisphere. After this date, nights gradually become longer than days until the winter solstice in December.
Understanding the Fall Equinox
The term "equinox" comes from Latin words meaning "equal night." During the equinox, day and night are approximately equal length everywhere on Earth, lasting about 12 hours each.
This balance occurs twice yearly - the spring equinox around March 20th and the fall equinox around September 22nd. The dates shift slightly each year due to Earth's elliptical orbit and leap year cycles.
What Happens During Fall
Fall season characteristics:
- Days become shorter as nights lengthen
- Temperatures gradually cool from summer highs
- Leaves change color and fall from deciduous trees
- Harvest season for many crops
- Animals prepare for winter migration or hibernation
Preparing for Fall
The transition to fall brings opportunities for seasonal activities and preparations.
Outdoor Activities
Fall offers excellent conditions for outdoor recreation. Cooler temperatures make hiking and camping more comfortable than summer. Many regions feature spectacular fall foliage, drawing visitors to scenic drives and nature walks.
Apple picking, pumpkin patches, and corn mazes become popular family activities. Farmers markets showcase harvest produce including squash, apples, and root vegetables.
Home Preparation
Use fall as a reminder for important home maintenance. Check heating systems before cold weather arrives. Clean gutters of accumulated debris. Seal windows and doors to improve energy efficiency. Store or cover outdoor furniture and equipment.
Fall Traditions
Many cultures celebrate the fall equinox and harvest season with festivals and traditions.
Harvest Festivals
Agricultural communities have celebrated successful harvests for thousands of years. Modern harvest festivals feature local produce, crafts, music, and community gatherings. Thanksgiving in North America originated as a harvest celebration.
Cultural Observances
The fall equinox holds spiritual significance in various traditions. Ancient monuments like Stonehenge align with equinox sunrises. Some Asian cultures celebrate the Mid-Autumn Festival near the equinox, featuring mooncakes and lanterns.
Science of Seasonal Change
Earth's axial tilt causes seasonal changes as our planet orbits the Sun. During fall in the Northern Hemisphere, the North Pole tilts away from the Sun, reducing daylight hours and solar intensity.
This decreased sunlight triggers deciduous trees to stop producing chlorophyll, revealing the yellow and orange pigments that create fall foliage. Red colors develop when sugars trapped in leaves produce anthocyanins.
Wildlife responds to shortening days as a signal to prepare for winter. Many birds migrate south to warmer climates. Mammals like bears eat extensively to build fat reserves for hibernation. Squirrels and other animals cache food supplies.
Making the Most of Fall
Fall's comfortable temperatures and beautiful scenery make it an ideal season for outdoor activities before winter arrives. Take advantage of pleasant weather for hiking, gardening, and outdoor projects that would be uncomfortable in summer heat or winter cold.
The season offers unique culinary opportunities with harvest produce. Apples, pumpkins, squash, and root vegetables reach peak flavor. Warm beverages and hearty soups become appealing as temperatures drop.