Fall 2025 brings two distinct starting dates depending on how you measure the season. The meteorological fall begins on September 1st, while the astronomical fall starts on September 22nd with the autumnal equinox. Both dates mark important transitions as summer’s warmth gradually gives way to autumn’s crisp air and changing leaves.
You’ll notice the days growing shorter after the equinox, creating perfect conditions for cozy sweaters, pumpkin spice everything, and the anticipation of harvest festivals. The season spans three months filled with vibrant foliage, comfortable temperatures, and some of the year’s most beloved holidays and traditions.
Whether you’re planning fall activities, preparing for seasonal changes, or simply curious about what autumn 2025 has in store, understanding these key dates and seasonal shifts will help you make the most of this beautiful time of year.
Key Takeaways
- Fall 2025 officially begins September 1st meteorologically and September 22nd astronomically
- The season features shorter days, cooler temperatures, and prime conditions for autumn activities
- September through November offer distinct monthly experiences with holidays, harvests, and seasonal celebrations
Key Dates of Fall 2025
Fall 2025 officially begins with the autumnal equinox on September 22 and extends through December 21. The season brings several important holidays including Halloween and Thanksgiving, plus the return to standard time in November.
First Day and Last Day of Fall
Fall 2025 starts on Monday, September 22, 2025. This marks the astronomical beginning of autumn when day and night are nearly equal in length.
The season continues for approximately 14 weeks. Fall ends on Sunday, December 21, 2025 with the winter solstice.
You’ll experience the full autumn season from late September through most of December. This gives you nearly three full months to enjoy fall activities and seasonal changes.
The dates remain consistent each year with only slight variations of a day or two. September 22 represents the standard timing for the autumnal equinox in most years.
Autumnal Equinox Timing
The autumnal equinox occurs on September 22, 2025 at a specific moment when the sun crosses the celestial equator. This astronomical event marks the official transition from summer to fall.
During the September equinox, you’ll notice that daylight and nighttime hours are nearly identical. The sun rises due east and sets due west on this date.
After September 22, daylight hours continue to shorten in the Northern Hemisphere. You’ll experience progressively longer nights as autumn advances toward winter.
The equinox timing is based on astronomical calculations rather than weather patterns. Your local climate may not immediately reflect seasonal changes on this exact date.
Important Fall Holidays
Halloween falls on Friday, October 31, 2025. This popular autumn holiday occurs during peak fall foliage season in many regions.
Thanksgiving is celebrated on Thursday, November 28, 2025 in the United States. This federal holiday traditionally marks the heart of the autumn season.
Labor Day occurred on Monday, September 1, 2025, technically before fall’s official start. Columbus Day takes place on Monday, October 13, 2025.
You’ll also encounter religious observances during fall. Rosh Hashana begins on Tuesday, September 23, and Yom Kippur falls on Thursday, October 2.
November brings Veterans Day on Tuesday, November 11. These holidays create natural breaks throughout your autumn calendar.
Daylight Saving Time Transition
Daylight Saving Time ends on Sunday, November 2, 2025 at 2:00 AM local time. You’ll “fall back” by setting clocks back one hour to 1:00 AM.
This transition provides an extra hour of sleep on that Sunday morning. You’ll gain additional daylight during morning hours but lose evening daylight.
The change affects sunset times significantly during November. Expect darkness to arrive noticeably earlier in the evening after the time change.
Most electronic devices automatically adjust for the time change. You’ll need to manually update analog clocks, car clocks, and other non-connected timepieces.
The earlier sunset times enhance the cozy autumn atmosphere. You’ll experience longer evenings perfect for indoor fall activities.
Defining Fall: Astronomical vs. Meteorological Seasons
Fall begins on two different dates depending on which seasonal system you follow. Astronomical fall starts with the autumnal equinox on September 22, 2025, while meteorological fall begins on September 1st each year.
Astronomical Fall Explanation
Astronomical seasons follow Earth’s position relative to the sun throughout its orbital journey. The autumnal equinox marks the official start of astronomical fall when day and night hours become nearly equal.
In 2025, astronomical fall begins on September 22 at 2:19 PM EDT. This timing shifts slightly each year due to Earth’s orbital mechanics and leap year adjustments.
The astronomical calendar connects fall to other celestial events. The summer solstice precedes fall, while the winter solstice follows it. Earth’s axial tilt of 23.5 degrees creates these seasonal transitions as different hemispheres receive varying amounts of sunlight.
Key astronomical fall characteristics:
- Variable start date (September 22-23)
- Based on Earth-sun positioning
- Ends at winter solstice (around December 21)
- Tied to equinox and solstice events
Meteorological Fall Overview
Meteorological seasons divide the year into four three-month periods based on temperature patterns rather than celestial events. Meteorological fall always runs from September 1 through November 30.
Meteorologists and climatologists prefer this system because it aligns better with actual weather patterns. September typically brings cooler temperatures in most regions, making it a logical seasonal boundary.
This fixed calendar system simplifies weather data collection and seasonal comparisons. You can easily compare fall temperatures from different years since the time periods remain constant.
Meteorological fall features:
- Fixed dates (September 1 – November 30)
- Based on temperature cycles
- Consistent three-month duration
- Preferred by weather professionals
Comparing Seasonal Definitions
Both seasonal definitions serve different purposes in your understanding of fall 2025. Astronomical seasons connect you to Earth’s cosmic rhythm and ancient seasonal observations.
Meteorological seasons better reflect the weather patterns you actually experience. Most people notice fall-like conditions in early September, weeks before the official equinox arrives.
| Aspect | Astronomical Fall | Meteorological Fall |
|---|---|---|
| 2025 Start Date | September 22, 2:19 PM EDT | September 1 |
| Duration | ~89 days | 91 days |
| End Date | December 21 | November 30 |
| Basis | Earth-sun position | Temperature patterns |
The choice between systems often depends on your needs. Weather forecasters use meteorological seasons for consistency, while astronomers and traditional calendars follow astronomical seasons for celestial accuracy.
Seasonal Transitions and Characteristics
Fall 2025 brings distinct changes in temperature patterns, shifting daylight hours, and the transformation of natural landscapes. The season officially begins on September 22, 2025, marking a period of transition that affects weather systems, light exposure, and vegetation across different regions.
Weather and Temperature Changes
The autumnal equinox on September 22 signals the beginning of cooler temperatures across most regions. You’ll notice gradual temperature drops as the season progresses through October and November.
Northern regions typically experience the most dramatic shifts. Daytime highs drop from summer’s warmth to comfortable ranges in the 50s and 60s Fahrenheit. Nighttime temperatures can dip into the 40s or lower by late October.
Southern areas maintain milder transitions. You might still experience warm days in early fall, with more noticeable cooling arriving in November. Humidity levels generally decrease, creating crisp, comfortable conditions.
Fall weather patterns become more variable. You’ll encounter increased chances of precipitation as storm systems strengthen. Some regions may see early frost by late October, particularly in higher elevations and northern latitudes.
Daylight and Nighttime Shifts
Daylight hours decrease steadily after the autumnal equinox. You’ll lose approximately two to three minutes of daylight each day as Earth’s tilt positions your hemisphere farther from the sun.
By late October, most locations experience noticeably shorter days. Sunrise occurs later while sunset arrives earlier. This creates longer periods of darkness that affect daily routines and energy levels.
November brings some of the year’s shortest daylight periods. You might find yourself commuting in darkness both morning and evening. The reduced sunlight exposure can impact mood and sleep patterns for many people.
Autumn Foliage and Landscapes
Autumn transforms landscapes through vibrant leaf color changes. Trees respond to shorter days and cooler temperatures by reducing chlorophyll production, revealing yellow, orange, and red pigments.
Peak foliage timing varies by location and elevation. Northern regions typically see peak colors in late September through early October. Southern areas may not reach peak colors until late October or early November.
Different tree species create distinct color patterns:
- Maples produce brilliant reds and oranges
- Oaks display deep browns and russets
- Birches turn golden yellow
- Hickories create bright yellow displays
Leaf drop accelerates through November as trees prepare for winter dormancy. You’ll notice bare branches becoming more prominent as the season progresses toward winter.
Traditions and Celebrations in Fall 2025
Fall 2025 brings together cherished holiday traditions from Thanksgiving gatherings to Halloween festivities, while harvest celebrations showcase local culture and seasonal abundance across communities.
Thanksgiving Customs
Thanksgiving 2025 maintains its traditional roots while adapting to modern family dynamics. Many families continue the classic turkey dinner with stuffing, cranberry sauce, and pumpkin pie.
You’ll find that gratitude practices have expanded beyond the dinner table. Digital gratitude journals and family video calls connect distant relatives during the holiday.
Traditional football viewing remains popular on Thanksgiving Day. The Macy’s Thanksgiving Day Parade continues as a morning staple for many households.
Volunteer opportunities at local food banks see increased participation during Thanksgiving week. Many families now incorporate community service as part of their holiday tradition.
The four-day weekend allows for extended family gatherings. Some families split celebrations between multiple households to accommodate divorced parents or blended families.
Halloween Activities
Halloween 2025 combines traditional trick-or-treating with creative new approaches to celebration. Costume themes often reflect current pop culture trends and viral social media content.
Neighborhood trunk-or-treat events provide safe alternatives to door-to-door visits. These community-organized gatherings happen in parking lots with decorated car trunks.
Pumpkin carving contests and decorating activities remain central to Halloween celebrations. Many families visit pumpkin patches in early October to select their carving pumpkins.
Horror movie marathons and haunted house visits attract teenagers and adults. Streaming platforms release special Halloween content throughout October.
Home decorating has become increasingly elaborate. You’ll see inflatable decorations, LED lighting displays, and motion-activated props in many neighborhoods.
Harvest Festivals and Cultural Events
Autumn festivals celebrate seasonal harvests and local agricultural traditions. Apple festivals feature fresh cider, caramel apples, and orchard activities like hayrides.
The NC Apple Festival runs from August 29th through September 1st in Hendersonville, North Carolina. This event showcases local apple varieties and regional culture.
Oktoberfest celebrations occur throughout September and October. These events feature traditional German food, beer, and music even in non-German communities.
Fall foliage festivals attract visitors to areas with vibrant autumn colors. These events typically include craft vendors, live music, and seasonal food offerings.
Corn mazes and pumpkin patches create family-friendly entertainment. Many farms expand their operations during fall months to accommodate increased visitor interest.
Monthly Highlights: September, October, and November 2025
Fall 2025 brings distinct experiences across each month, from September’s transition into autumn to November’s deep seasonal celebrations. Each month offers unique opportunities for seasonal activities, holiday preparations, and embracing the changing weather patterns.
What to Expect in September
September 2025 marks the official beginning of fall on September 22nd with the autumn equinox. This transition month bridges summer’s warmth with autumn’s crisp air.
Labor Day falls on September 1st, giving you a long weekend to enjoy late summer activities. Schools typically resume their fall schedules during the first two weeks of September.
You’ll notice daylight hours decreasing more noticeably as the month progresses. Temperatures begin their gradual decline, making September perfect for outdoor activities before winter arrives.
Apple picking season starts in many regions during mid-September. Orchards open their doors for harvest activities and fresh cider production.
September weather remains mild in most areas. You can still enjoy hiking, camping, and outdoor festivals without heavy winter clothing.
Notable October Events
October 2025 delivers peak fall experiences with Columbus Day on October 13th providing a federal holiday. This month showcases autumn’s most vibrant colors and seasonal traditions.
Halloween falls on Friday, October 31st, creating ideal conditions for trick-or-treating and weekend celebrations. Costume parties and haunted attractions reach their busiest period.
Leaf-peeping season hits its stride during October’s middle weeks. You’ll find the most spectacular foliage displays in northern regions between October 10th-25th.
Pumpkin patches and corn mazes operate at full capacity. Harvest festivals celebrate the season with hayrides, apple cider, and seasonal produce displays.
October weather brings cooler temperatures and increased rainfall in many areas. You’ll need light jackets and layers for comfortable outdoor activities.
November’s Seasonal Significance
November 2025 brings deeper autumn experiences with Veterans Day on November 11th and Thanksgiving on November 27th. These holidays anchor the month’s family-focused activities.
Thanksgiving week typically sees the heaviest travel period of the year. You should plan accommodations and transportation well in advance for holiday gatherings.
Black Friday shopping begins on November 28th, launching the holiday retail season. Many stores extend sales throughout the weekend and following Monday.
November weather turns significantly colder across most regions. You’ll experience shorter days and the first frost in many northern areas.
Wildlife preparation for winter becomes visible during November. You can observe migrating birds and animals gathering food for the coming months.
