Zion National Park
To escape the heat, spring and fall are the best times for hiking. In summer, it is oven-like and can get well above 100°F (38°C) and on the other side thunderstorms occur. If you go in midsummer avoid long hikes. Snow and ice can be an issue in winter unless that's what you’re looking for but bear in mind, half of the annual rainfall comes during the winter.
Avoiding Tourist Crowds:
Peak months are June to August. A little less crowded in spring and fall. Very quiet in December, January, February but bear in mind road or trails can be closed. However, you can avoid crowds year-round by starting your hike or exploration right after sunrise. At that time you’ll have the park almost for yourself. Most visitors don’t start before 10 a.m.
In the morning there is also a better chance of spotting wildlife and the best light for photos.
From March to October you have to take the shuttle bus, cars are not permitted. Usually, from November to February you can park your car at the available parking lots. The scenic drive in Zion can be closed at weekends in February and shuttle bus transportation has to be taken. Check shuttle bus schedule for each season first, includes maps and hiking trail information.
Sweet Spot Months:
The best months with usually good weather and less crowds than during peak months are: March/April and October/November.
Where to begin...Zion is a one of a kind national park. This awe inspiring place has some of the most vivid naturally colored landscapes and mountains i've ever seen. Hiking is just amazing here and Zion is very hiker friendly. The natural canyons, valley's, rock formations and plant life alone make it a must see for anyone, and should be on everyone's bucket list of things to see before you leave this earth. The little town of Springdale just outside the park offers great camping and hotels as well as top notch eateries and shops.