Arches is a national park in Utah. The best time to visit is generally April, May, September and October. It is a certified dark-sky park, prized for stargazing on clear nights.
April, May, September and October tend to bring the best balance of weather, access and conditions. Around then, daytime highs average about 85°F and overnight lows near 58°F.
Arches is part of the Colorado Plateau, a "high desert" region that experiences wide temperature fluctuations, sometimes over 40 degrees in a single day. The temperate (and most popular) seasons are spring (April-May) and fall (mid-September-October), when daytime highs average 60 to 80 F and lows average 30 to 50 F. Summer temperatures often exceed 100 F, making strenuous exercise difficult. Winters are cold, with highs averaging 30 to 50 F, and lows averaging 0 to 20 F.
Arches is a certified dark-sky park. Skies are typically clearest in June, July, August, September and October.
See what's in the sky this season
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