Glacier National Park is a breathtaking destination, but its popularity can mean large crowds, especially in the summer. Finding the best time to visit Glacier National Park can help you experience its beauty in peace. This guide breaks down visitor statistics, weather patterns, and insider tips to help you plan the perfect trip.
Table of Contents
Visitation PatternsBest Time to Visit
Avoiding Crowds
Weather & Activities
Practical Tips
May & September
Best Time FAQ
Conclusion
Understanding Glacier National Park’s Visitation Patterns
Analyzing Monthly Visitor Data
Summer months (June–August) draw the largest crowds, with July topping over 700,000 visitors annually. These statistics, sourced from NPS STATS, highlight the peak tourism season in Glacier National Park. In contrast, the winter months (November–April) see under 50,000 visitors per month due to cold weather and limited access to park roads like Going-to-the-Sun Road. May and October offer a great middle ground, with lower visitation and manageable weather.

Month | Average Visitors |
---|---|
July | 730,000–790,000 |
November | Under 25,000 |
Factors Contributing to Crowds
- Summer vacations drive tourism from late June to August.
- Roads and trails fully open only in summer, attracting peak-season visitors.
Seasonal Breakdown: Best Time to Visit Glacier National Park
Summer (June–August)

- Best activities: Hiking Grinnell Glacier Trail, driving Going-to-the-Sun Road.
- Crowd insight: Expect crowded parking lots and busy trails.
- Weather highlights: Warm temperatures and full access to trails.
- Conclusion: Summer is the best time to visit Glacier National Park for accessibility but not for avoiding crowds.
Fall (September–October)
- Fewer visitors after Labor Day; visitation in September drops to ~600,000 and even lower in October (~165,000).
- Top activities: Trails like Avalanche Lake and Hidden Lake are stunning in autumn.
- Why visit: Cooler temperatures, vibrant fall foliage, and wildlife spotting.
Winter (November–March)
- Activities: Snowshoeing and cross-country skiing are peaceful but require preparation for extreme cold.
- Limited access to iconic areas like Logan Pass due to road closures.
Spring (April–May)
- Visitor numbers start increasing in May (~200,000), but it’s still manageable.
- Snowmelt makes waterfalls like St. Mary Falls more powerful, while wildflowers bloom across meadows.
How to Avoid Crowds While Visiting Glacier
Optimal Timing in Peak Season
- Use shuttle services to avoid parking issues.
- Hike less crowded trails like Siyeh Pass Trail instead of Highline Trail.
- Read up on our tips for avoiding crowds at National Parks.
Weather and Activities in Glacier National Park
Weather and Road Access
- Going-to-the-Sun Road typically opens in late June and closes mid-October.
- For 2025, June 13 through September 28 timed entry vehicle reservations are required for the west side of Going-to-the-Sun Road and North Fork from 7 am to 3 pm.
- Snow may cover high-altitude trails until early July.

Seasonal Activities
- Summer: Full access to trails like Highline Trail and Iceberg Lake Trail.
- Fall: Wildlife spotting and photography are best in September.
- Winter: Peaceful snow-covered landscapes for snowshoeing.
- Spring: Waterfalls and blooming flora offer a unique park experience.
Practical Tips for Best Time to Visit Glacier National Park
Planning Ahead
- Accommodation tips: Book lodges up to 6 months in advance for summer.
- Use shoulder-season discounts in May or October to save on hotels.
Be Flexible with Weather
- Glacier weather changes quickly. Pack for warm afternoons, cold mornings, and possible rain.
Stay Updated on Park Access
- Check the National Park Service website for road and trail conditions before your trip.
Why May and September Are Ideal
May offers low crowds and active wildlife, while September provides cooler weather and fewer tourists after Labor Day. Together, these months strike the perfect balance, making them the best time to visit Glacier National Park for a peaceful and rewarding experience. Trails like Avalanche Lake and Hidden Lake are accessible, while crowds are significantly smaller than summer.
FAQ: Best Time to Visit Glacier National Park
What is the best month to visit Glacier National Park?
May and September offer the best balance of weather, accessibility, and smaller crowds. July is ideal for full trail access but comes with peak-season crowds.
When does Going-to-the-Sun Road open?
The road typically opens in late June and closes mid-October. For 2025, timed entry vehicle reservations are required from June 13 through September 28.
Is Glacier National Park crowded in September?
Crowds significantly decrease after Labor Day, making late September a quieter time to visit.
Ready to Plan Your Glacier Adventure? Here’s What You Need to Know About the Best Time to Visit Glacier National Park
Choosing the best time to visit Glacier National Park is all about balancing weather, activities, and crowds. May and September are the top months to experience the park at its best—fewer crowds, ideal weather, and stunning landscapes without the stress of peak-season traffic. Whether you’re looking to hike, explore scenic drives, or simply enjoy the serene beauty of the park, these months provide the perfect opportunity.
Ready to make the most of your trip? Check out more helpful guides like the ultimate guide to hiking in National Parks or learn about the best hikes to do in Glacier. And don’t forget to follow @ptadventuring on Instagram for real-time updates, tips, and beautiful photos from the park.