August in Joshua Tree National Park is a tough month: highs around 104°F, lows around 74°F. Crowds: very quiet — #10 busiest of the park's 12 months. Still dangerously hot; nights offer little relief. The editorial best window here is March–April & October. You get about 13h 24m of daylight. To finish Lost Palms Oasis (2h 45m) before dark, leave the trailhead by about 4:44 PM.
Month data reviewed · how we check this
| Verdict | Tough Closures, harsh weather or very limited access — plan carefully. |
|---|---|
| Temps °F | 104° high / 74° low |
| Crowds | very quiet · #10 busiest of the park's 12 months |
| What August is like | Still dangerously hot; nights offer little relief |
| Best window (whole year) | March–April & October |
| Peak crowds (whole year) | Mar–Apr |
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 (PDT)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
LEAVE THE TRAILHEAD BY — TO FINISH BEFORE DARK ON AUGUST 15WALKING TIMES ESTIMATED FROM EACH TRAIL'S MEASURED DISTANCE AND ELEVATION GAIN — A PLANNING FIGURE, NOT A PACE. ADD YOUR OWN MARGIN FOR PHOTOS, REST AND CROWDS. WATER AT THE HOT-WEATHER RATE, BECAUSE THIS MONTH AVERAGES 104°F. TRAILS WE HAVE NOT MEASURED ARE LEFT OUT RATHER THAN GUESSED
WHAT AUGUST ASKS OF YOU HEREJoshua Tree National Park in September — Good, highs around 97°F, crowds: quiet (cooling begins but afternoons are still hot).
Our verdict for August is "Tough". Closures, harsh weather or very limited access — plan carefully. Expect highs around 104°F and lows around 74°F, with crowds at the "very quiet" 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 March–April & October, and the peak-crowd months are Mar–Apr. August itself we rate "Tough".
September we rate "Good" against "Tough" for August, with highs around 97°F and crowds at the "quiet" level.
About 13h 24m on August 15: the sun rises around 6:05 AM and sets around 7:29 PM local park time (PDT). Computed from the park's own coordinates, so it is the light you actually get at the trailhead, not the nearest city's.
Lost Palms Oasis takes about 2h 45m of walking, so on August 15 you would need to leave the trailhead by about 4:44 PM to finish before dark — the sun sets around 7:29 PM local park time (PDT). Walking times are estimated from each trail's measured distance and elevation gain, so treat them as a planning figure and add your own margin for photos, rest and crowds.
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