Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
Weather in August
Temperature
Transitioning into August, Phoenix records an average high-temperature of a still sweltering 102.6°F (39.2°C), almost identical to July's 103.6°F (39.8°C). In Phoenix, the nighttime temperature averages to a warm 84.7°F (29.3°C) during August.Humidity
The average relative humidity in August in Phoenix, Arizona, is 30%.Rainfall
In Phoenix, in August, it is raining for 7.2 days, with typically 0.59" (15mm) of accumulated precipitation. In Phoenix, during the entire year, the rain falls for 44.6 days and collects up to 5.04" (128mm) of precipitation.Snowfall
In Phoenix, snow does not fall in January through August, October through December.Daylight
The average length of the day in August is 13h and 21min.On the first day of the month, sunrise is at 5:41 am and sunset at 7:27 pm. On the last day of August, sunrise is at 6:02 am and sunset at 6:54 pm MST.
Sunshine
In Phoenix, the average sunshine in August is 12h.UV index
The months with the highest UV index are May through August, with an average maximum UV index of 8. A UV Index value of 8 to 10 symbolizes a very high threat to health from unsafe exposure to UV radiation for the average person.Note: The maximum UV index of 8 during August translates into these guidelines:
Always remain cautious. Unprotected skin and eyes are prone to swift harm. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in August?
What is the average humidity in August?
How many days does it rain in August?
When it does not snow?
Does it snow in August?
What is the average length of the day in August in Phoenix?
When is the sunrise / sunset in August?
How many hours of sunshine does Phoenix have in August?
What are the months with the highest UV index?
What is the UV index intensity in August?
Average temperature in August
Phoenix, AZ
- Average high temperature in August: 102.6°F
The warmest month (with the highest average high temperature) is July (103.6°F).
The month with the lowest average high temperature is December (63°F).
- Average low temperature in August: 84.7°F
The month with the highest average low temperature is August (84.7°F).
The coldest month (with the lowest average low temperature) is January (47.5°F).
Average pressure in August
Phoenix, 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
Phoenix, AZ
- Average wind speed in August: 5.3mph
The windiest month (with the highest average wind speed) is April (6.4mph).
The calmest month (with the lowest average wind speed) is December (4.3mph).
Average humidity in August
Phoenix, AZ
- Average humidity in August: 30%
The month with the highest relative humidity is December (43%).
The month with the lowest relative humidity is June (16%).
Average rainfall in August
Phoenix, AZ
- Average rainfall in August: 0.59"
The wettest month (with the highest rainfall) is July (0.75").
The driest months (with the least rainfall) are May and June (0.08").
Average rainfall days in August
Phoenix, AZ
- Average rainfall days in August: 7.2 days
The month with the highest number of rainy days is July (7.8 days).
The month with the least rainy days is June (0.8 days).
Average snowfall in August
Phoenix, AZ
- Average snowfall in August: 0"
The month with the highest snowfall is September (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, October, November and December (0").
Average snowfall days in August
Phoenix, AZ
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is September (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, October, November and December (0 days).
Average daylight in August /
Average sunshine in August
Phoenix, 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 0min
The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).
Average sunshine days in August
Phoenix, AZ
- Average sunshine days in August: 21.8 days
The month with the most sunshine days is May (29.2 days).
The month with the least sunshine days is July (21.1 days).
Average UV index in August
Phoenix, 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
Phoenix, 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
Phoenix, 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).
Phoenix, Arizona, USA
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