June in Yosemite National Park is a best window month: highs around 82°F, lows around 52°F. Crowds: peak crowds — #1 busiest of the park's 12 months. Half Dome cables go up; high country opens. The editorial best window here is May–June. You get about 14h 46m of daylight. To finish Half Dome (7h 45m) before dark, leave the trailhead by about 12:37 PM.
Month data reviewed · how we check this
| Verdict | Best window The editorial pick — weather, access and experience line up. |
|---|---|
| Temps °F | 82° high / 52° low |
| Crowds | peak crowds · #1 busiest of the park's 12 months |
| What June is like | Half Dome cables go up; high country opens |
| Best window (whole year) | May–June |
| Peak crowds (whole year) | Jun–Aug |
CROWDS: RELATIVE SEASONALITY FROM NPS VISITATION STATISTICS · TEMPS: APPROXIMATE NOAA NORMALS AT MAIN VISITOR ELEVATION — HIGH COUNTRY RUNS 10–20°F COLDER
DAYLIGHT ON JUNE 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 JUNE 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 COOL-WEATHER RATE, BECAUSE THIS MONTH AVERAGES 82°F. TRAILS WE HAVE NOT MEASURED ARE LEFT OUT RATHER THAN GUESSED
WHAT JUNE ASKS OF YOU HEREYosemite National Park in July — Good, highs around 90°F, crowds: peak crowds (hot valley afternoons; peak-hours entry reservation in effect).
Our verdict for June is "Best window". The editorial pick — weather, access and experience line up. Expect highs around 82°F and lows around 52°F, with crowds at the "peak crowds" 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 May–June, and the peak-crowd months are Jun–Aug. June itself we rate "Best window".
July we rate "Good" against "Best window" for June, with highs around 90°F and crowds at the "peak crowds" level.
About 14h 46m on June 15: the sun rises around 5:35 AM and sets around 8:21 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.
Half Dome takes about 7h 45m of walking, so on June 15 you would need to leave the trailhead by about 12:37 PM to finish before dark — the sun sets around 8:21 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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