Winter: A neoprene wetsuit or dry suit with warm layers may be needed. Average winter water temperatures range from 38° to 45° Fahrenheit (3° to 7° Celsius).
Pee - Whenever possible, pee directly into the flowing water of the river. The smell of your urine, on land, will persist for months. At the very least, carry a ziplock bag to pack out your toilet paper. Water – There is reasonable water for drinking almost every step of The Narrows – literally.
October is a gorgeous time to hike the Narrows. The later you get in the month, the better the fall colors will be and you will share the canyon with just a few other people. But you also have to take into account shorter days, colder temperatures, and the reduced Zion shuttle schedule.
Layers: The temperatures in the Zion Narrows can be much cooler than the rest of the park. In fact, we were surprisingly cold during most of the hike. Your bottoms are definitely going to get wet so we recommend wearing shorts or a bathing suit on the bottom.
Most people hike The Narrows in the summer and early fall when the water tends to be at its warmest and the water level drops. However, life-threatening flash floods are possible at any time and are common during the monsoon season.
The Narrows is a popular hike through the knee-deep Virgin River. Due to cold water temperature and high water levels, the trail is closed in winter and spring. The best time to hike The Narrows is from late May to October, but watch out for summer thunderstorms that can cause deathly flash floods.
Even at 50 cfs, the water can be up to 5 feet deep in some places, so time your hike for days when the water level is below 50 cfs if you can. Also, check at the visitor center about the possibility of flash-flooding. If there's even a remote chance of flash-flooding, DO NOT HIKE THE NARROWS.
For a trek deep into the narrows or a through hike I'd say rent the water hiking shoes from one of the outfitters. We choose the boot/sock/walking stick option and it turned out to be a great choice for us. The water came up to mid-thigh and was very muddy so you couldn't see where you were walking.
The Narrows stretches for 16 miles but that's if you hike top-down. Most people hike between 2-6 hours on the Narrows hike when starting at the bottom (~6 miles round trip). Since the Narrows hike is an in-and-out trail, whatever mileage and time you put in hiking in, you have to do out.
Best time of day to hike the NarrowsIf you are only looking to do a small portion of the Narrows, then we recommend visiting in the late afternoon when it has warmed up a bit. The big rush tends to be in the morning as the people who want to hike the furthest start early.
The Narrows is a strenuous hike that follows the Virgin River through a narrow slot canyon. After 1 mile (0.6 km) on the easy, paved Riverside Walk, head down a set of stairs and into the river.
The Narrows is located in the narrowest part of Zion Canyon and the Virgin River that runs through the canyon is the trail for the hike. You can hike the trail year-round, but due to the chilly water conditions in the winter, you will find less people than you would in the summer.