Part of Merced River in the valley below the Yosemite National Park Mountains, California
Weather in August
August in Yosemite National Park continues with warm temperatures, similar to those experienced in July. With barely any rainfall, it becomes the second driest month, receiving only 0.2" (5mm). Ample daylight of 13.6 hours combined with 11 hours of abundant sunshine casts a radiant charm on the park's landscape. Water activities become a popular choice, with visitors opting for swimming or rafting in the park's sparkling rivers and lakes. With an ideal weather scenario, wildlife encounters are equally probable.
On the first day of August in Yosemite National Park, sunrise is at 6:02 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:28 pm PDT.
Note: A maximum high UV index of 10 in August translates into the following recommendations:
Always take precautions; unprotected eyes and skin can be damaged rapidly. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Ensure the liberal application and reapplication of a broad-spectrum SPF 30+ sunscreen after each outdoor activity or swim, and every two hours.
[Resources]Temperature
The transition into August shows a subtle variation to a still hot 89.4°F (31.9°C) from July's 90°F (32.2°C) in the average high-temperature. Yosemite National Park's average low-temperature for the month of August denotes a significant decline from the daily high, recording at a fresh 52°F (11.1°C).Rainfall
August is the month with the least rainfall in Yosemite National Park. Rain falls for 1 days and accumulates 0.2" (5mm) of precipitation.Snowfall
In Yosemite National Park, snow does not fall in June through September.Daylight
The average length of the day in August is 13h and 35min.On the first day of August in Yosemite National Park, sunrise is at 6:02 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:28 pm PDT.
Sunshine
In August, the average sunshine in Yosemite National Park is 11h.UV index
In Yosemite National Park, the average daily maximum UV index in August is 10. A UV Index value of 8 to 10 symbolizes a very high health risk from unsafe exposure to UV radiation for average individuals.Note: A maximum high UV index of 10 in August translates into the following recommendations:
Always take precautions; unprotected eyes and skin can be damaged rapidly. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Ensure the liberal application and reapplication of a broad-spectrum SPF 30+ sunscreen after each outdoor activity or swim, and every two hours.
Frequently asked questions
How hot is August in Yosemite National Park?
During August, Yosemite National Park experiences an average high-temperature of 89.4°F (31.9°C) and a low-temperature of 52°F (11.1°C).
What is the driest month in Yosemite National Park?
The month with the least rainfall in Yosemite National Park, California, is August, when the rain falls for 1 days and typically collects 0.2" (5mm) of precipitation.
How many days does it rain in August in Yosemite National Park?
In Yosemite National Park, California, in August, it is raining for 1 days, with typically 0.2" (5mm) of accumulated precipitation.
When it does not snow in Yosemite National Park?
June through September are months without snowfall in Yosemite National Park.
How many hours of daylight does Yosemite National Park have in August?
In August, the average day length in Yosemite National Park, California, is 13h and 35min.
When is the sunrise / sunset in August in Yosemite National Park?
On the first day of August, sunrise is at 6:02 am and sunset at 8:06 pm. On the last day of the month, sunrise is at 6:28 am and sunset at 7:28 pm PDT.
How long on average sun shines in August in Yosemite National Park?
In Yosemite National Park, California, the average sunshine duration in August is 11h.
What is the UV index intensity in August in Yosemite National Park?
In August, the average daily maximum UV index in Yosemite National Park is 10. A UV Index reading of 8 to 10 represents a very high health risk from exposure to Sun's UV rays.
Average temperature in August
Yosemite National Park, CA
- Average high temperature in August: 89.5°F
The warmest month (with the highest average high temperature) is July (89.9°F).
The month with the lowest average high temperature is January (47.2°F).
- Average low temperature in August: 52°F
The month with the highest average low temperature is July (53.2°F).
The coldest month (with the lowest average low temperature) is January (25.6°F).
Average rainfall in August
Yosemite National Park, CA
- Average rainfall in August: 0.2"
The wettest month (with the highest rainfall) is January (6.5").
The driest month (with the least rainfall) is August (0.2").
Average rainfall days in August
Yosemite National Park, CA
- Average rainfall days in August: 1 days
The month with the highest number of rainy days is March (10 days).
The months with the least rainy days are July and August (1 days).
Average snowfall in August
Yosemite National Park, CA
- Average snowfall in August: 0"
The month with the highest snowfall is January (16.2").
The months with the least snowfall are June, July, August and September (0").
Average daylight in August /
Average sunshine in August
Yosemite National Park, CA
- Average daylight in August: 13h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in August: 11h
The month with the most sunshine is July (Average sunshine: 12h).
The months with the least sunshine are January and December (Average sunshine: 6h).
Average UV index in August
Yosemite National Park, CA
- Average UV index in August: 10
The month with the highest UV index is July (UV index 11).
The months with the lowest UV index are January and December (UV index 2).
Yosemite National Park, California, USA
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