The highest day temperature in August 2026 was 89°F. The lowest night temperature was 44°F. The average values for day and night temperatures during August were 78.2°F и 56.2°F respectivly.

The average sea surface temperature in August 2026 for Yosemite was 75.5°F. The maximum and minimum values were 72.6°F and 78.2°F respectively.

Most of the days in August are sunny but you can also expect cloudy and gloomy days.

Precipitation total in August for Yosemite is 0.3 in. It makes august the least rainy month of the year.

The average wind speed in August is 6.9 mph. This value is relatively stable throughout the year.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Yosemite in August is 12.1 hours.