While it can snow in Zion, daytime temperatures even in winter generally accommodate shirtsleeves and pants. In summer you’re likely to pretty much live in your swimsuit, shorts, and a tank top, but will want some lightweight layers you can add for the evenings, especially if you’re camping in the park. Summer or winter, good shoes, and sunglasses are important pieces to include in your Zion wardrobe.
Winter – December, January, February
Average winter temps in Zion range from a balmy 50s during the day, dropping into the 20s overnight. As we mentioned, while it can snow in Zion, it rarely lasts for long. Unless you’re planning a number of hikes with large elevation changes, chances are good you’ll be comfortable with lighter weight winter clothing. Good options to include are long pants, base layer, hat, fleece, heavy jacket, short or long sleeve shirts depending on your cold tolerance and hiking shoes or boots.
Spring – March, April
Spring is beautiful and mild in Zion. Temperatures generally are in the 30s overnight and up into the 70s during the day. March is usually the rainiest month in Zion, so be prepared for that if you plan to visit then. Some good clothing options for spring are shorts or pants depending on your chill tolerance, lightweight waterproof jacket, fleece vest, short or long sleeve shirts, hiking shoes, boots or sandals.
Summer – May, June, July, August, September
Summer is the most popular time to visit Zion, so in addition to great hot weather, be prepared for lots of fellow visitors. Summer temps during the day commonly reach into the 100s while overnight it will often dip into the 50s. Lightweight and comfortable are best for summer months including shorts, short sleeve shirts or tank tops, lightweight jacket (for nighttime), hiking boots, shoes or sandals, sunhat.
Fall – October, November
Fall is relatively short in Zion but it can be a great time to go if you’d rather miss the crowds of summer. Temperatures will range from the 30s to the 70s, so you can plan your wardrobe for this time much as you would for a March or April trip.