When should you hike a trail? Some hikes lead to fascinating forests, some have tremendous views and others are rich in variety. Share your favorite trails with other hikers and nature lovers.
August to December and March April
The North Rim is open from mid-May until mid-October and closed in the winter. There are less iconic views but it’s also much less crowded than the South Rim.
The North Rim is only visited by 10% of the Grand Canyon visitors. You might even go in summer as the temperatures are more pleasant due to its higher elevation. Summer days are usually delightfully clear and cool except for the occasional thunderstorms in July and August. May and September are still great months to hike this trail. It's not heavily crowded if you visit in the summer. But still, try to avoid weekends and start your hike early.
If you are looking for an adventures hike; the red track in Bungonia, Morton National Park may be the right one for you. The hike leads through the riverbed which should be dried-out. An early start is recommended. This trail is almost not marked. It takes some time to find the best way through the riverbed, to ford the creek, and to climb the huge rocks as well.
Good months for this strenuous trail are April/May (end of summer, the beginning of fall) and the winter as well. Usually, there is not the same boiling heat as you experience in summer. You should start early for two reasons. First, in summer, it'll be boiling hot in the Slot Canyon, and the steep way back up to the top without any shelter is quite hard. Second, this area is affected by blasting from the mine at about 3 p.m. This can cause falling rocks and boulders.
Bungonia is still a little gem and not overrun. If you are seeking for a quiet spot during the Christmas holidays this is a good choice.
Lyrebird in the bush
More rainfall from November to February with its peak in November and February. During summer day temps are often around 25°C though in the Slot Canyon it's really hot. Nights are pretty cool; comfortable for camping. Winter months are drier and sunnier. The day temps are mild around 12°C but nights are cold almost 0°C.
July to September are the best month ("Dry Season") - Best early in the morning
"Dry" season which last from May to October/November
The South Rim is open year-round (except for road closures during extreme winter weather, which is rare). The best time to hike the trail is spring or fall, but it also depends on what you are looking for:
March, April, May (spring): Spring weather can be unpredictable but usually temperatures are mild without a lot of rain. However, March is prone to late season snowstorms. Spring is great if you want to avoid the hot and uncomfortable summer heat. It’s also not heavily crowded. There are wildflowers blooming during this season. In some years it can be a gorgeous with lots of blooms.
June, July, August (summer): We do not recommend summer as an ideal visiting time: These are the most popular months with heavy crowds. Although the temperatures are more pleasant than the extreme inner Canyon heat it’s still very hot and midday temperatures can make hiking unbearable. Afternoon rain showers or thunderstorms are common in the summer. Especially from from July through mid-September. Always bring rain gear.
September, October, November (autumn): September after Labor Day is the perfect month for hiking the trail: Less crowds and very pleasant temperatures. However, keep in mind that until mid-September those summer thunderstorms can still occur. Fall weather is also the most unpredictable: Bring rain gear. October and November are still great, although temperatures drop in November: 27 - 52° F (-3 - 11° C)
December, January, February (winter): It’s colder with daily highs in the 40s. Extreme weather with snow storms and and icy trails is possible. However, in the winter you’ll almost find solitude with minimal crowds and reduced rates. It’s a great time if you don’t mind the cooler climate.
Avoiding the Crowds
Summer months bring the most crowds. If you visit in the summer start your hike very early in the morning to beat massive crowds as well as the heat. It can also get crowded in spring and fall during holidays and on weekends. Try to avoid weekends in general. Some great tips from the official NPS website to dodge the crowds: South Rim Crowding: South Rim - A Survival Guide
Please check the monthly weather with temperatures and precipation here: South Rim Monthly Averages. Remember to bring rain gear, regardless of the season.