August weather forecast
Tucson, AZ

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Sunset in downtown Tucson, Arizona with a skyline and a sentinel peak in the distance
Sunset in downtown Tucson, Arizona with a skyline and a sentinel peak in the distance

Weather in August

August in Tucson maintains the monsoon trend started in July, extending the respite from the desert climate. Despite monsoon clouds casting a veil over the city, August's weather retains a warm hue. The transit from August to September offers a slight reduction in humidity, signaling the impending end of the rainy season. While the rainfall may be scattered, thunderstorms become nightly spectacles in the Tucson sky. The last month of summer hosts an average daytime temperature high at a formidable 93.9°F (34.4°C).

Temperature

The advent of August in Tucson sees the average high-temperature at a still hot 93.9°F (34.4°C), subtly shifted from July's 94.5°F (34.7°C). In Tucson, the average low-temperature during the month of August is a moderately hot 75.9°F (24.4°C).

Humidity

In August, the average relative humidity in Tucson is 39%.

Rainfall

In Tucson, in August, during 12.3 rainfall days, 1.22" (31mm) of precipitation is typically accumulated. In Tucson, during the entire year, the rain falls for 66.1 days and collects up to 7.95" (202mm) of precipitation.

Snowfall

In Tucson, snow does not fall in February through December.

Daylight

In Tucson, the average length of the day in August is 13h and 17min.
On the first day of August in Tucson, sunrise is at 5:39 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 6:48 pm MST.

Sunshine

August has the most sunshine of the year in Tucson, with an average of 12.2h of sunshine.

UV index

In August, the average daily maximum UV index in Tucson, Arizona, is 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the average person.
Note: An average maximum UV index of 7 in August leads to these recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
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Frequently asked questions

How hot does it get in Tucson in August?

In August, the average high-temperature and low-temperature in Tucson are 93.9°F (34.4°C) and 75.9°F (24.4°C) respectively.

What is the average humidity in August in Tucson?

The average relative humidity in August is 39%.

How much does it rain in Tucson in August?

In Tucson, Arizona, in August, during 12.3 rainfall days, 1.22" (31mm) of precipitation is typically accumulated.

When it does not snow in Tucson?

In Tucson, snow does not fall in February through December.

How many hours of daylight does Tucson have in August?

The average day length in August in Tucson is 13h and 17min.

What time are sunrise and sunset in August in Tucson?

On the first day of August in Tucson, sunrise is at 5:39 am and sunset at 7:20 pm. On the last day of the month, sunrise is at 5:58 am and sunset at 6:48 pm MST.

What month has the most sunshine in Tucson?

The month with the most sunshine in Tucson is August, with an average of 12.2h of sunshine.

How many hours of sunshine does Tucson have in August?

In Tucson, the average sunshine duration in August is 12.2h.

What is the UV index intensity in August in Tucson?

In Tucson, Arizona, the average daily maximum UV index in August is 7. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation.
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
Tucson, AZ

Average temperature in August - Tucson, AZ
  • Average high temperature in August: 93.9°F

The warmest month (with the highest average high temperature) is June (96.6°F).
The month with the lowest average high temperature is December (60.8°F).

  • Average low temperature in August: 75.9°F

The month with the highest average low temperature is July (77°F).
The coldest months (with the lowest average low temperature) are January and December (43°F).

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Average pressure in August
Tucson, AZ

Average pressure in August - Tucson, AZ
  • Average pressure in August: 29.89"Hg

The month with the highest atmospheric pressure is January (30.08"Hg).
The month with the lowest atmospheric pressure is June (29.83"Hg).

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Average wind speed in August
Tucson, AZ

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

The windiest months (with the highest average wind speed) are April and May (8.1mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in August
Tucson, AZ

Average humidity in August - Tucson, AZ
  • Average humidity in August: 39%

The month with the highest relative humidity is December (45%).
The month with the lowest relative humidity is June (19%).

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Average rainfall in August
Tucson, AZ

Average rainfall in August - Tucson, AZ
  • Average rainfall in August: 1.22"

The wettest month (with the highest rainfall) is July (1.42").
The driest month (with the least rainfall) is May (0.08").

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Average rainfall days in August
Tucson, AZ

Average rainfall days in August - Tucson, AZ
  • Average rainfall days in August: 12.3 days

The month with the highest number of rainy days is July (13.3 days).
The month with the least rainy days is May (1.3 days).

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Average snowfall in August
Tucson, AZ

Average snowfall in August - Tucson, AZ
  • Average snowfall in August: 0"

The month with the highest snowfall is January (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in August
Tucson, AZ

Average snowfall days in August - Tucson, AZ
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

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

Average daylight in August / Average sunshine in August - Tucson, 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 1min

The month with the most sunshine is August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

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Average sunshine days in August
Tucson, AZ

Average sunshine days in August - Tucson, AZ
  • Average sunshine days in August: 14.7 days

The month with the most sunshine days is May (29.3 days).
The month with the least sunshine days is July (13.3 days).

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Average UV index in August
Tucson, AZ

Average UV index in August - Tucson, AZ
  • Average UV index in August: 7

The month with the highest UV index is June (UV index 8).
The months with the lowest UV index are November and December (UV index 3).

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Average cloud cover in August
Tucson, AZ

Average cloud cover in August - Tucson, AZ
  • Average cloud cover in August: 15

The month with the most cloud cover is December (Cloud cover 19).
The months with the least cloud cover are May and June (Cloud cover 7).

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Average visibility in August
Tucson, AZ

Average visibility in August - Tucson, 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).

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Tucson, Arizona, USA

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