Phoenix in August
The weather in August
In August, Phoenix averages daytime highs of 105° and night-time lows of 80° — very hot weather by day. Expect around 1.1 in of precipitation spread over about 8 wet days, with average cloud cover near 19%.
Temperatures are much the same as in July, and September is cooler again by about 2.6°.
August scores 38/100 — mixed conditions for sightseeing — and ranks 11th of the twelve months for Phoenix. For the most comfortable weather, consider January, March and November instead.
Around the middle of the month the sun rises at 05:51 and sets at 19:16 local time, giving 13 h 24 min of daylight. Days shorten by 54 minutes over the month.
Why 38/100?
How the score for August is builtComfort peaks for daytime highs between 18° and 25°C (64–77°F).
Around Phoenix this month
Glendale
United States's best in August
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Salinas
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Coos Bay
Phoenix in August: quick answers
Is August a good time to visit Phoenix?
August scores 38/100 for Phoenix, which we rate as mixed. Average highs are 105°F with 8 wet days.
How warm is Phoenix in August?
Daytime highs average 105°F and night-time lows 80°F in August.
Does it rain a lot in Phoenix in August?
Phoenix receives about 1.1 in of precipitation in August, falling on around 8 days.