August weather forecast
Sierra Vista, AZ

englishespañol中文
Share
The vast Sierra Vista region of Arizona
The vast Sierra Vista region of Arizona

Weather in August

Moving into August, Sierra Vista maintains its tendency for rainy summers. While temperatures remain high, similar to July around 86.5°F (30.3°C), it is the average rainfall of 4.06" (103mm) that sets August apart. Sierra Vista continues to experience regular rain showers, providing much-needed relief from the higher temperatures. The charm of monsoonal summer days continuing from July creates a spectacle of lush landscapes and unique wildlife sightings.

Temperature

Sierra Vista, Arizona, sees an average high-temperature of a still tropical 86.5°F (30.3°C) as it transitions into August, consistent with July. During the August nights, an average temperature of 68.2°F (20.1°C) is observed in Sierra Vista.

Heat index

In August, the average heat index is appraised at a hot 87.8°F (31°C). Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.
Heat index details are generally centered around shaded locations and a mild breeze. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is the outcome of merging air's temperature and its humidity metrics. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.

Humidity

The average relative humidity in August in Sierra Vista is 49%.

Rainfall

In Sierra Vista, during August, the rain falls for 18.7 days and regularly aggregates up to 4.06" (103mm) of precipitation. Throughout the year, there are 92.2 rainfall days, and 15.47" (393mm) of precipitation is accumulated.

Snowfall

In Sierra Vista, snow does not fall in April through November.

Daylight

The average length of the day in August is 13h and 16min.
On the first day of the month, sunrise is at 5:37 am and sunset at 7:16 pm. On the last day of August, sunrise is at 5:56 am and sunset at 6:45 pm MST.

Sunshine

June and August, with an average of 12h of sunshine, are months with the most sunshine.

UV index

In August, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In August, a daily maximum UV index of 6 leads to the following instructions:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.

Frequently asked questions

How hot does it get in August?

August temperatures vary between a high-temperature of 86.5°F (30.3°C) and a low-temperature of 68.2°F (20.1°C). The average heat index (a.k.a. 'feels like', 'real feel'), which represents the influence of relative humidity on air temperature, in August is appraised at 87.8°F (31°C).

What is the average humidity in August?

In August, the average relative humidity is 49%.

How much does it rain in August?

In Sierra Vista, in August, it is raining for 18.7 days, with typically 4.06" (103mm) of accumulated precipitation.

When it does not snow?

In Sierra Vista, snow does not fall in April through November.

What is the average length of the day in August?

The average day length in August is 13h and 16min.

What time are sunrise and sunset in August in Sierra Vista?

On the first day of August, sunrise is at 5:37 am and sunset at 7:16 pm. On the last day of the month, sunrise is at 5:56 am and sunset at 6:45 pm MST.

What is the month with the most sunshine in Sierra Vista?

June and August, with an average of 12h of sunshine, are months with the most sunshine.

How long on average sun shines in August?

The average sunshine duration in August is 12h.

What is the UV index intensity in August?

In August, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Sierra Vista, AZ

Average temperature in August - Sierra Vista, AZ
  • Average high temperature in August: 86.5°F

The warmest month (with the highest average high temperature) is June (90.1°F).
The month with the lowest average high temperature is December (56.5°F).

  • Average low temperature in August: 68.2°F

The month with the highest average low temperature is July (69.6°F).
The coldest months (with the lowest average low temperature) are January and December (37.8°F).

Average pressure in August
Sierra Vista, AZ

Average pressure in August - Sierra Vista, AZ
  • Average pressure in August: 29.9"Hg

The month with the highest atmospheric pressure is January (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in August
Sierra Vista, AZ

Average wind speed in August - Sierra Vista, AZ
  • Average wind speed in August: 5.5mph

The windiest month (with the highest average wind speed) is April (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in August
Sierra Vista, AZ

Average humidity in August - Sierra Vista, AZ
  • Average humidity in August: 49%

The month with the highest relative humidity is September (50%).
The months with the lowest relative humidity are May and June (23%).

Average rainfall in August
Sierra Vista, AZ

Average rainfall in August - Sierra Vista, AZ
  • Average rainfall in August: 4.06"

The wettest month (with the highest rainfall) is July (4.53").
The driest month (with the least rainfall) is May (0.12").

Average rainfall days in August
Sierra Vista, AZ

Average rainfall days in August - Sierra Vista, AZ
  • Average rainfall days in August: 18.7 days

The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is May (2.3 days).

Average snowfall in August
Sierra Vista, AZ

Average snowfall in August - Sierra Vista, AZ
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.46").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in August
Sierra Vista, AZ

Average snowfall days in August - Sierra Vista, AZ
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is December (1.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in August / Average sunshine in August - Sierra Vista, AZ
  • Average daylight in August: 13h and 2min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in August: 12h and 0min

The months with the most sunshine are June and August (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).

Average sunshine days in August
Sierra Vista, AZ

Average sunshine days in August - Sierra Vista, AZ
  • Average sunshine days in August: 7.7 days

The month with the most sunshine days is May (28.1 days).
The month with the least sunshine days is July (6.5 days).

Average UV index in August
Sierra Vista, AZ

Average UV index in August - Sierra Vista, AZ
  • Average UV index in August: 6

The month with the highest UV index is June (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, AZ

Average cloud cover in August - Sierra Vista, AZ
  • Average cloud cover in August: 19

The month with the most cloud cover is July (Cloud cover 24).
The month with the least cloud cover is May (Cloud cover 8).

Average visibility in August
Sierra Vista, AZ

Average visibility in August - Sierra Vista, AZ
  • 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, Arizona, USA

Weather forecast for your location

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