August weather forecast and climate
Tempe, AZ

The Tempe Town Lake of Tempe City, Arizona
The Tempe Town Lake of Tempe City, Arizona

Weather in August

The last month of the summer, August, is another very hot month in Tempe, Arizona, with average temperature ranging between min 84.4°F (29.1°C) and max 101.8°F (38.8°C).

Temperature

In Tempe, the average high-temperature is relatively the same as in July - a still sweltering 101.8°F (38.8°C). In August, in Tempe, the average low-temperature is 84.4°F (29.1°C).

Humidity

The average relative humidity in Tempe, Arizona, is 30%.

Rainfall

In Tempe, during August, the rain falls for 9.3 days and regularly aggregates up to 0.94" (24mm) of precipitation. In Tempe, during the entire year, the rain falls for 57.7 days and collects up to 7.72" (196mm) of precipitation.

Daylight

In August, the average length of the day in Tempe is 13.3h.

Sunshine

June and August, with an average of 12.1h of sunshine, are months with the most sunshine in Tempe, Arizona.

UV index

Months with the highest UV index in Tempe are May through August, with an average maximum UV index of 8. A UV Index estimate of 8 to 10 represents a very high health risk from the exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 8 transform into the following instructions:
Take special precautions, as unprotected skin can be damaged and can burn quickly. 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 bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in August in Tempe?

In August, in Tempe, the average high-temperature is 101.8°F (38.8°C), and the average low-temperature is 84.4°F (29.1°C).

What is the average humidity in August in Tempe?

In August, the average relative humidity is 30%.

How many days does it rain in August in Tempe?

In Tempe, in August, during 9.3 rainfall days, 0.94" (24mm) of precipitation is typically accumulated.

How many hours of daylight does Tempe have in August?

The average length of the day in August in Tempe, Arizona, is 13.3h.

What is the month with the most sunshine in Tempe?

Months with the most sunshine in Tempe, Arizona, are June and August, with an average of 12.1h of sunshine.

How long on average sun shines in August in Tempe?

The average sunshine in August in Tempe is 12.1h.

What are the months with the highest UV index in Tempe?

May through August, with an average maximum UV index of 8, are months with the highest UV index.

What is the UV index intensity in August in Tempe?

In Tempe, the average daily maximum UV index in August is 8. A UV Index reading of 8 to 10 represents a very high health threat from the exposure to the Sun's UV radiation.

Average temperature in August
Tempe, AZ

Average temperature in August - Tempe, AZ
  • Average high temperature in August: 101.8°F

The warmest month (with the highest average high temperature) is July (102.6°F).
The month with the lowest average high temperature is December (62.8°F).

  • Average low temperature in August: 84.4°F

The month with the highest average low temperature is August (84.4°F).
The coldest month (with the lowest average low temperature) is January (46.9°F).

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Average pressure in August
Tempe, AZ

Average pressure in August - Tempe, AZ
  • Average pressure in August: 29.87"

The month with the highest atmospheric pressure is January (30.09").
The month with the lowest atmospheric pressure is June (29.81").

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Average wind speed in August
Tempe, AZ

Average wind speed in August - Tempe, AZ
  • Average wind speed in August: 5.1mph

The windiest months (with the highest average wind speed) are April and May (6.3mph).
The calmest month (with the lowest average wind speed) is December (4.4mph).

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Average humidity in August
Tempe, AZ

Average humidity in August - Tempe, AZ
  • Average humidity in August: 30%

The month with the highest relative humidity is December (44%).
The month with the lowest relative humidity is June (16%).

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Average rainfall in August
Tempe, AZ

Average rainfall in August - Tempe, AZ
  • Average rainfall in August: 0.94"

The wettest month (with the highest rainfall) is July (1.14").
The driest month (with the least rainfall) is June (0.08").

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Average rainfall days in August
Tempe, AZ

Average rainfall days in August - Tempe, AZ
  • Average rainfall days in August: 9.3 days

The month with the highest number of rainy days is July (10.2 days).
The month with the least rainy days is June (1 days).

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Average daylight in August /
Average sunshine in August
Tempe, AZ

Average daylight in August / Average sunshine in August - Tempe, AZ
  • Average daylight in August: 13.3h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in August: 12.1h

Months with the most sunshine are June and August (Average sunshine: 12.1h).
The month with the least sunshine is December (Average sunshine: 6.8h).

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Average sunshine days in August
Tempe, AZ

Average sunshine days in August - Tempe, AZ
  • Average sunshine days in August: 17.8 days

The month with the most sunshine days is May (28.7 days).
The month with the least sunshine days is July (16.8 days).

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Average UV index in August
Tempe, AZ

Average UV index in August - Tempe, AZ
  • Average UV index in August: 8

Months with the highest UV index are May, June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).

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Average cloud cover in August
Tempe, AZ

Average cloud cover in August - Tempe, AZ
  • Average cloud cover in August: 12

The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 5).

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Average visibility in August
Tempe, AZ

Average visibility in August - Tempe, AZ
  • Average visibility in August: 6mi

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

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