Phoenix Weather in August

Average temperatures, rainfall and packing tips for Phoenix, United States in August

🌡️ Avg high
41°C
🌙 Avg low
29°C
🌧️ Rainfall
~12 mm
📊 Warmth rank
#3 of 12

August in Phoenix at a glance

August in Phoenix is typically very hot, with average daytime highs around 41°C and nights near 29°C. It is one of the warmer months of Phoenix's year.

Rainfall is light in August: roughly 12 mm across the whole month.

What to pack for Phoenix in August

Phoenix - year at a glance

HighLow · August highlighted
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Is August a good time to visit Phoenix?

🧳 August is seriously hot in Phoenix. It's still doable - plan outdoor activities for early morning or evening, and build in shade and hydration breaks around midday.

If your dates are flexible, the most comfortable months in Phoenix are usually March, April, November and December.

Other months in Phoenix

August in other cities

← Phoenix weather tomorrow (live)

FAQ

How hot is Phoenix in August?

In August, Phoenix averages a daytime high of about 41°C and a night-time low of around 29°C, based on recent historical data.

Does it rain in Phoenix in August?

Rainfall is light in August: roughly 12 mm across the whole month.

Is August a good time to visit Phoenix?

August is seriously hot in Phoenix. It's still doable - plan outdoor activities for early morning or evening, and build in shade and hydration breaks around midday. If your dates are flexible, the most comfortable months in Phoenix are usually March, April, November and December.