Phoenix Weather in August

August in Phoenix sees daytime temperatures around 40°C (104°F) and lows of 28°C (82°F) at night. As the wettest month of the year, keep in mind that rainfall is at its highest.

Rainfall in Phoenix in August

Prepare for the wettest month with an umbrella to protect yourself from frequent rain. Historically, August sees about 6 days of rain, with a monthly average of 32 mm (1.3 in). The occasional light shower is possible, but rain is rarely an issue this month.

Temperature in Phoenix in August

If you're visiting Phoenix in August, expect highs of 40°C (104°F) and overnight lows around 28°C (82°F). Sunshine and humidity can make it feel even warmer than the raw temperature suggests. At 28°C (82°F) overnight, the heat doesn't let up much after dark. If you're staying somewhere without air conditioning, a cold shower before bed and keeping the air moving can help.

Sunshine in Phoenix in August

The days are predominantly sunny, with an estimated total of around 360 hours of sunshine. These sun-filled days are perfect for playing sports, visiting parks, or going for a bike ride.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, November and December typically offer the best weather for Phoenix.