August weather forecast
Scottsdale, AZ

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A scenic waterfront canal running through Scottsdale, Arizona
A scenic waterfront canal running through Scottsdale, Arizona

Weather in August

In Scottsdale, Arizona, August remains hot, replicating July's maximum temperatures. Despite the high heat, rainfall amounts increase slightly from the previous month, averaging at 0.94" (24mm). An occasional cloud cover provides infrequent shelter from the relentless sun. As humidity levels remain high with practically no breeze, the heat feels even more intense than the thermometer shows it to be. As the days start to shorten again, residents anticipate the imminent return of cooler weather.

Temperature

The shift to August signals an average high-temperature of a still sweltering 101.8°F (38.8°C), subtly varied from July's 102.6°F (39.2°C). Scottsdale experiences a mean low-temperature of 84.4°F (29.1°C) during August.

Humidity

In Scottsdale, the average relative humidity in August is 30%.

Rainfall

In Scottsdale, in August, it is raining for 9.3 days, with typically 0.94" (24mm) of accumulated precipitation. In Scottsdale, 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 Scottsdale is 13h and 22min.
On the first day of August, sunrise is at 5:40 am and sunset at 7:27 pm. On the last day of the month, sunrise is at 6:01 am and sunset at 6:53 pm MST.

Sunshine

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

UV index

May through August, with an average maximum UV index of 8, are months with the highest UV index in Scottsdale, Arizona. A UV Index estimate of 8 to 10 represents a very high threat to health from unsafe exposure to UV radiation for average individuals.
Note: In August, an average UV index of 8 transforms into the following instructions:
Don't neglect protection; skin and eyes can be burned swiftly if left exposed. 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. Boost your sun resistance with garments that are densely woven yet spacious.

Frequently asked questions

How hot does it get in Scottsdale in August?

In August, the average high-temperature and low-temperature in Scottsdale, Arizona, are 101.8°F (38.8°C) and 84.4°F (29.1°C) respectively.

What is the average humidity in August in Scottsdale?

In August, the average relative humidity in Scottsdale, Arizona, is 30%.

How many days does it rain in August in Scottsdale?

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

How many hours of daylight does Scottsdale have in August?

The average day length in August in Scottsdale is 13h and 22min.

When are sunrise and sunset in August in Scottsdale?

In August, on the first day of the month, sunrise is at 5:40 am and sunset at 7:27 pm. On the last day of the month, in Scottsdale, sunrise is at 6:01 am and sunset at 6:53 pm MST.

What is the month with the most sunshine in Scottsdale?

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

How long on average sun shines in August in Scottsdale?

The average sunshine duration in August in Scottsdale, Arizona, is 12.1h.

When is the highest UV index in Scottsdale?

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

What is the UV index reading in August in Scottsdale?

The average daily maximum UV index in August in Scottsdale, Arizona, is 8. A UV Index estimate of 8 to 10 represents a very high health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in August
Scottsdale, AZ

Average temperature in August - Scottsdale, 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).

Average pressure in August
Scottsdale, AZ

Average pressure in August - Scottsdale, AZ
  • Average pressure in August: 29.87"Hg

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

Average wind speed in August
Scottsdale, AZ

Average wind speed in August - Scottsdale, 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).

Average humidity in August
Scottsdale, AZ

Average humidity in August - Scottsdale, 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%).

Average rainfall in August
Scottsdale, AZ

Average rainfall in August - Scottsdale, 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").

Average rainfall days in August
Scottsdale, AZ

Average rainfall days in August - Scottsdale, 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).

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

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

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in August: 12h and 1min

The months with the most sunshine are June and August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).

Average sunshine days in August
Scottsdale, AZ

Average sunshine days in August - Scottsdale, 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).

Average UV index in August
Scottsdale, AZ

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

The 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).

Average cloud cover in August
Scottsdale, AZ

Average cloud cover in August - Scottsdale, 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).

Average visibility in August
Scottsdale, AZ

Average visibility in August - Scottsdale, 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).

Scottsdale, Arizona, USA

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