August weather forecast
Death Valley National Park, CA

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Amargosa Range
Amargosa Range's Zabriskie point located in the Death Valley National Park in California

Weather in August

August in Death Valley National Park holds on to July's red-hot weather, but with a subtle dip in temperature. The maximum temperature recedes slightly to 114.7°F (45.9°C), a marginal relief amid an otherwise melting summer. The contrast between the daytime heat and nighttime low temperature, which stands at 85.7°F (29.8°C), becomes a bit more pronounced. Moreover, the UV index maintains high, alongside lengthy daylight hours. Despite the intense heat, August retains its charm for those interested in experiencing the intense desert ambience.

Temperature

The shift to August signals an average high-temperature of a still blazing hot 114.6°F (45.9°C), subtly varied from July's 116.4°F (46.9°C). August nights are characterized by a significant departure from the daytime highs, dropping to an average temperature of 85.6°F (29.8°C).

Rainfall

In Death Valley National Park, in August, during 1 rainfall days, 0.12" (3mm) of precipitation is typically accumulated. In Death Valley National Park, during the entire year, the rain falls for 20 days and collects up to 2.36" (60mm) of precipitation.

Daylight

The average length of the day in August is 13h and 31min.
On the first day of August, sunrise is at 5:55 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 7:17 pm PDT.

Sunshine

In August, the average sunshine is 12h.

UV index

June through August, with an average maximum UV index of 10, are months with the highest UV index in Death Valley National Park. A UV Index value of 8 to 10 symbolizes a very high health risk from exposure to the Sun's UV rays for the average person.
Note: The UV index of 10 during August translates into the following guidance:
Take the necessary steps to protect yourself; unprotected skin and eyes are vulnerable to damage. Between 10 a.m. and 4 p.m., the Sun emits the most powerful UV radiation. Limit direct exposure to the Sun during these hours. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Use liberally and reapply a broad-spectrum SPF 30+ sunscreen every two hours, or straight away after any outdoor workout or swim.

Frequently asked questions

How hot is it in Death Valley National Park in August?

In Death Valley National Park, in August, the average high-temperature is 114.6°F (45.9°C), and the average low-temperature is 85.6°F (29.8°C).

How many days does it rain in August?

In August, the rain falls for 1 days. Throughout August, 0.12" (3mm) of precipitation is accumulated.

How many hours of daylight does Death Valley National Park have in August?

The average day length in August is 13h and 31min.

When are sunrise and sunset in August?

In August, on the first day of the month, sunrise is at 5:55 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 6:19 am and sunset at 7:17 pm PDT.

How long on average sun shines in August in Death Valley National Park?

In August, the average sunshine duration is 12h.

When is the highest UV index?

June through August, with an average maximum UV index of 10, are months with the highest UV index.

What is the UV index intensity in August in Death Valley National Park?

In August, the average daily maximum UV index is 10. A UV Index estimate of 8 to 10 represents a very high health vulnerability from unprotected exposure to UV radiation.
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in August
Death Valley National Park, CA

Average temperature in August - Death Valley National Park, CA
  • Average high temperature in August: 114.7°F

The warmest month (with the highest average high temperature) is July (116.5°F).
The month with the lowest average high temperature is December (65.2°F).

  • Average low temperature in August: 85.7°F

The month with the highest average low temperature is July (88°F).
The coldest month (with the lowest average low temperature) is December (38.3°F).

Average rainfall in August
Death Valley National Park, CA

Average rainfall in August - Death Valley National Park, CA
  • Average rainfall in August: 0.1"

The wettest month (with the highest rainfall) is February (0.5").
The driest month (with the least rainfall) is May (0").

Average rainfall days in August
Death Valley National Park, CA

Average rainfall days in August - Death Valley National Park, CA
  • Average rainfall days in August: 1 days

The months with the highest number of rainy days are January, February, March and December (3 days).
The months with the least rainy days are June and July (0 days).

Average daylight in August /
Average sunshine in August
Death Valley National Park, CA

Average daylight in August / Average sunshine in August - Death Valley National Park, CA
  • Average daylight in August: 13h and 3min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in August: 12h

The months with the most sunshine are June and July (Average sunshine: 13h).
The month with the least sunshine is December (Average sunshine: 6h).

Average UV index in August
Death Valley National Park, CA

Average UV index in August - Death Valley National Park, CA
  • Average UV index in August: 10

The months with the highest UV index are June, July and August (UV index 10).
The month with the lowest UV index is December (UV index 2).

Death Valley National Park, California, USA

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