August weather forecast
Sierra Vista, CA

Share

Weather in August

The last month of the summer, August, is another very hot month in Sierra Vista, California, with temperature in the range of an average low of 64.9°F (18.3°C) and an average high of 98.2°F (36.8°C).

Temperature

Sierra Vista experiences an average high-temperature of a still torrid 98.2°F (36.8°C) with the onset of August, subtly varied from July's 100°F (37.8°C). Nighttime temperatures exhibit a substantial dip from daytime highs during August, averaging at a comfortable 64.9°F (18.3°C).

Humidity

In Sierra Vista, 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 August, the average length of the day 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 Sierra Vista, California, the average sunshine in August is 12h.

UV index

The months with the highest UV index in Sierra Vista 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 exposure to the Sun's UV rays for ordinary individuals.
Note: In August, the maximum UV index of 7 translates into these guidelines:
Shield from overexposure. Defense against sun-related harm is required. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Updated: Jul 23, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in Sierra Vista in August?

The average high-temperature and low-temperature during August are 98.2°F (36.8°C) and 64.9°F (18.3°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in May is evaluated at 82.4°F (28°C).

What is the average humidity in August?

The average relative humidity in August in Sierra Vista is 32%.

What is the driest month?

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 much does it rain in August?

In Sierra Vista, in August, during 1.3 rainfall days, 0.04" (1mm) of precipitation is typically accumulated.

What is the average length of the day in August?

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

When is the sunrise / 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 long on average sun shines in August?

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

What is the month with the highest UV index?

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

What is the UV index reading in August?

The average daily maximum UV index in August is 7. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to 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).

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).

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).

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%).

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").

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).

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).

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).

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).

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).

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).

Sierra Vista, California, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location