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As the vibrant energy of summer begins to fade, Estes Park in September offers a unique allure for adventurers and nature enthusiasts alike. In this guide about visiting Estes Park, Colorado in September, we’ll help you make the most of your autumn escape. Whether you’re wandering through the lively town or exploring the breathtaking Rocky Mountain National Park, September offers a truly memorable adventure. So, lace up your boots and let’s embark on this adventure!
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Watch our YouTube video for a full overview of Visiting Estes Park in September:
Photo by Visit Estes Park
CROWDS / POPULARITY IN SEPTEMBER
September in Estes Park retains the vibrant spirit of summer, with visitor numbers similar to those in August. With approximately 700,000 visitors, the town remains active and bustling as we transition to fall.
Be prepared for delays when entering Rocky Mountain National Park, especially during peak hours. Long lines and wait times, sometimes exceeding an hour, are common, particularly if you plan on entering the National Park during the morning or near the start / end of Timed Entry Reservation hours for the day. Trails can also become overly crowded, so consider opting for less popular trails not located on the Bear Lake Road Corridor for more solitude.
Related: The Best Time of Year to Visit Estes Park, Colorado
TRANSPORTATION / HOW TO GET AROUND IN SEPTEMBER
Public transportation begins to transition back to availability only on weekends and routes stopping for the remainder of the year in September in Estes Park. Also take note that ride-sharing services like Uber and Lyft very rarely operate in Estes Park, no matter the season. Free shuttles in Estes Park (The Peak) begin operating on the weekends only for routes outside of the downtown shopping area, with these same routes stopping at the end of the month. The hiker shuttle from the Estes Park Visitor Center to Rocky Mountain National Park begins only operating on the weekends. The Bustang bus service which offers transport on weekends from various cities (like Denver) to Estes Park stops running at the end of September.
For more freedom, your best bet is to bring your own vehicle or utilize local ride services like Explore Estes, to get around the area. Explore Estes is a licensed transportation business that offers rides within Estes Park, ride services down the mountain (as far as Boulder), and rides to/from trailheads in the Rocky Mountain National Park. Click here to request a ride with Explore Estes. Rental options are also very limited in town and include Up Top Automotive (limited vehicles) and Backbone Jeep Rentals (specializing in 4×4 rentals). The Turo App is another rental choice.
Important Note: We can begin to see snowfall towards the end of the month as we move towards winter. Consider an AWD or 4WD vehicle as weather can be unpredictable. Ensure you’re comfortable with icy driving skills before heading into the mountains if you’re trekking into higher elevations.
Related: How to Get Around Estes Park Without a Vehicle
WEATHER IN SEPTEMBER
September in Estes Park brings cooler days with average highs around 71°F (22°C) and chilly nights averaging 42°F (6°C), with many evenings dipping into the 30s (1-3°C), though rarely below freezing. Afternoons can still be warm, especially at lower elevations, but cooler temperatures remain at higher elevations in Rocky Mountain National Park as it cools about 3 – 5 degrees for every 1000ft (305m) in elevation that you gain. It’s not uncommon to also see snowfall towards the end of the month, especially at higher elevations. As the season transitions, wildfire danger increases due to the drier conditions and lack of cloud coverage with little moisture, making September the clearest and sunniest month of the year.
The landscape becomes dry and brown as vibrant wildflowers of summer have faded, making way for the golden hues of changing aspen leaves and reach their peak by mid to late September. Sunrises occur around 6:40 AM, setting the stage for exploration until sunset at approximately 7:15 PM. Wind speeds average around 12 mph (19 km/h), bringing a noticeable chill, especially at higher elevations.
Photo by Visit Estes Park
WHAT TO WEAR / PACK IN SEPTEMBER
With limited daylight and cooler temperatures in September, layering is key, especially if you’re hitting the trails. You may start off hiking in warmer weather, but the temperates can quickly cool as the sun sets. Be sure to pack a moisture wicking base layer, add a cozy fleece, and top it off with a waterproof or resistant outer layer. Be sure to wear wool socks and some waterproof boots to keep your feet dry. And lastly, don’t forget sunscreen and hats, as the higher elevation brings you closer to the sun with more intense UV rays.
Related: What to Pack for Fall in Estes Park, Colorado
Here are some products we use & recommend:
THINGS TO DO IN SEPTEMBER
As the peak season begins to wind down, some activities start closing for the year in September. Rocky Mountain National Park is the biggest draw of visiting Estes Park, Colorado in any season, but please note that Timed Entry Reservations will still be required to enter the National Park in the month of September.
Related: Understanding the Rocky Mountain National Park Timed Entry Permit Reservation System
Here’s some of our favorite activities to do in the month of September:
• Take a scenic drive on the iconic Old Fall River Road and back down Trail Ridge Road in Rocky Mountain National Park
• Take a tour through Rocky Mountain National Park
• Visit the Historic Stanley Hotel
• Go hiking to witness the changing leaves
• Watch the active wildlife during the elk mating season (elk rut)
• Head up Prospect Mountain on the scenic Estes Park Aerial Tramway
• Ride the Mustang Mountain Alpine Coaster
• Shop downtown on Elkhorn Avenue for souvenirs
Related: Top 20 Things to Do in Fall in Estes Park, Colorado
We hope this overview was helpful for planning your visit to Estes Park, Colorado in September! Have you visisted Estes Park in September? We’d love to hear your thoughts in the comments below!
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