August weather forecast
Sierra Vista, CA

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Weather in August

August, the last month of the summer in Sierra Vista, is also a sweltering month, with an average temperature ranging between min 64.9°F (18.3°C) and max 98.2°F (36.8°C).

Temperature

Sierra Vista marks the start of August with an average high-temperature of a still fiery hot 98.2°F (36.8°C), hinting at a slight fluctuation from July's 100°F (37.8°C). Sierra Vista's August nights represent a significant downturn from the day's heat, with an average temperature of 64.9°F (18.3°C).

Humidity

The average relative humidity in August is 32%.

Rainfall

August is the month with the least rainfall. Rain falls for 1.3 days and accumulates 0.04" (1mm) of precipitation.

Daylight

In Sierra Vista, the average length of the day in August is 13h and 32min.
On the first day of the month, sunrise is at 6:06 am and sunset at 8:08 pm. On the last day of August, sunrise is at 6:31 am and sunset at 7:30 pm PDT.

Sunshine

In August, the average sunshine in Sierra Vista is 12h.

UV index

The months with the highest UV index are June through August, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for ordinary individuals.
Note: An average UV index of 7 in August transforms into this advice:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
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Frequently asked questions

How hot does it get in Sierra Vista in August?

The high-temperature, in August, in Sierra Vista, records 98.2°F (36.8°C), while the low-temperature is 64.9°F (18.3°C). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines air temperature and relative humidity, in May is computed to be 82.4°F (28°C).

What is the average humidity in August in Sierra Vista?

In August, the average relative humidity in Sierra Vista is 32%.

What is the driest month in Sierra Vista?

The month with the least rainfall is August, when the rain falls for 1.3 days and typically collects 0.04" (1mm) of precipitation.

How many days does it rain in August in Sierra Vista?

In Sierra Vista, during August, the rain falls for 1.3 days and regularly aggregates up to 0.04" (1mm) of precipitation.

How many hours of daylight does Sierra Vista have in August?

In Sierra Vista, the average day length in August is 13h and 32min.

When are sunrise and sunset in August in Sierra Vista?

On the first day of August, sunrise is at 6:06 am and sunset at 8:08 pm. On the last day of the month, sunrise is at 6:31 am and sunset at 7:30 pm PDT.

How many hours of sunshine does Sierra Vista have in August?

In August, the average sunshine duration in Sierra Vista is 12h.

When is the highest UV index in Sierra Vista?

June through August, with an average maximum UV index of 7, are months with the highest UV index.

How high is the UV index in August in Sierra Vista?

The average daily maximum UV index in August in Sierra Vista, California, is 7. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Sierra Vista, CA

Average temperature in August - Sierra Vista, CA
  • Average high temperature in August: 98.2°F

The warmest month (with the highest average high temperature) is July (100°F).
The month with the lowest average high temperature is December (56.3°F).

  • Average low temperature in August: 64.9°F

The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is December (41.9°F).

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Average pressure in August
Sierra Vista, CA

Average pressure in August - Sierra Vista, CA
  • Average pressure in August: 29.92"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.91"Hg).

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Average wind speed in August
Sierra Vista, CA

Average wind speed in August - Sierra Vista, CA
  • Average wind speed in August: 6.8mph

The windiest month (with the highest average wind speed) is June (7.9mph).
The calmest month (with the lowest average wind speed) is November (4.7mph).

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Average humidity in August
Sierra Vista, CA

Average humidity in August - Sierra Vista, CA
  • Average humidity in August: 32%

The month with the highest relative humidity is January (68%).
The month with the lowest relative humidity is July (31%).

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Average rainfall in August
Sierra Vista, CA

Average rainfall in August - Sierra Vista, CA
  • Average rainfall in August: 0.04"

The wettest month (with the highest rainfall) is March (1.46").
The driest month (with the least rainfall) is August (0.04").

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Average rainfall days in August
Sierra Vista, CA

Average rainfall days in August - Sierra Vista, CA
  • Average rainfall days in August: 1.3 days

The month with the highest number of rainy days is March (8.6 days).
The month with the least rainy days is June (0.8 days).

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Average daylight in August /
Average sunshine in August
Sierra Vista, CA

Average daylight in August / Average sunshine in August - Sierra Vista, CA
  • Average daylight in August: 13h and 3min

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 42min).

  • Average sunshine in August: 12h and 0min

The month with the most sunshine is July (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).

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Average sunshine days in August
Sierra Vista, CA

Average sunshine days in August - Sierra Vista, CA
  • Average sunshine days in August: 28.5 days

The month with the most sunshine days is June (28.8 days).
The month with the least sunshine days is February (21.5 days).

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Average UV index in August
Sierra Vista, CA

Average UV index in August - Sierra Vista, CA
  • Average UV index in August: 7

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).

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Average cloud cover in August
Sierra Vista, CA

Average cloud cover in August - Sierra Vista, CA
  • Average cloud cover in August: 5

The months with the most cloud cover are March and December (Cloud cover 30).
The months with the least cloud cover are July, August and September (Cloud cover 5).

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Average visibility in August
Sierra Vista, CA

Average visibility in August - Sierra Vista, CA
  • Average visibility in August: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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Sierra Vista, California, USA

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