August in Canyonlands National Park is a tough month: highs around 97°F, lows around 66°F. Crowds: moderate — #6 busiest of the park's 12 months. Monsoon peak — flash floods close dirt roads without warning. The editorial best window here is April–May & September–October. You get about 13h 38m of daylight.
Month data reviewed · how we check this
| Verdict | Tough Closures, harsh weather or very limited access — plan carefully. |
|---|---|
| Temps °F | 97° high / 66° low |
| Crowds | moderate · #6 busiest of the park's 12 months |
| What August is like | Monsoon peak — flash floods close dirt roads without warning |
| Best window (whole year) | April–May & September–October |
| Peak crowds (whole year) | May |
CROWDS: RELATIVE SEASONALITY FROM NPS VISITATION STATISTICS · TEMPS: APPROXIMATE NOAA NORMALS AT MAIN VISITOR ELEVATION — HIGH COUNTRY RUNS 10–20°F COLDER
DAYLIGHT ON AUGUST 15 · LOCAL PARK TIME (MDT)COMPUTED FROM THE PARK'S OWN COORDINATES FOR THE 15TH — THE MIDDLE OF THE MONTH STANDS FOR IT, AS IT DOES FOR CLIMATE NORMALS. WITHIN A MONTH THESE TIMES SHIFT BY UP TO AN HOUR
WHAT AUGUST ASKS OF YOU HERECanyonlands National Park in September — Best window, highs around 88°F, crowds: busy (the best month overall: heat breaks, light lengthens, crowds thin).
Our verdict for August is "Tough". Closures, harsh weather or very limited access — plan carefully. Expect highs around 97°F and lows around 66°F, with crowds at the "moderate" level. Temperatures are approximate NOAA normals at the main visitor elevation; crowd levels follow published NPS visitation statistics.
Across the full 12-month review, the best window is April–May & September–October, and the peak-crowd months are May. August itself we rate "Tough".
September we rate "Best window" against "Tough" for August, with highs around 88°F and crowds at the "busy" level.
About 13h 38m on August 15: the sun rises around 6:34 AM and sets around 8:12 PM local park time (MDT). Computed from the park's own coordinates, so it is the light you actually get at the trailhead, not the nearest city's.
Get a heads-up before timed-entry and lottery windows open — plus new guides for the parks you care about.
FREE · NO SPAM · UNSUBSCRIBE IN ONE TAP
© 2026 StayNear National Parks · About · Methodology · Privacy · Terms · Affiliate disclosure · Refunds