Weather in Phoenix in September
Phoenix, United States averages a high of 37.3°C (99.1°F) and low of 24°C (75.2°F) in September, with 3 rain days and 11.6 hours of daily sunshine. Travel score: 88.1/100 (Excellent). The best time to visit Phoenix is October.
High
37°C99°F
Low
24°C75°F
🌧️
3
rain days
☀️
11.6
hrs/day sunshine
💧
33%
humidity
88— Excellent
September in Phoenix is very hot and dry — excellent conditions for exploring.
What are the average temperatures in Phoenix?
How much does it rain in Phoenix in September?
Phoenix receives an average of 24.2mm of rainfall across 3 rainy days in September. The annual total is 229.8mm.
What should I pack for Phoenix in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light, breathable clothing
Hot weather with highs around 37°C
🧢
Sun hat or cap
Protection from intense sun
🧴
Sunscreen SPF 30+
12 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Evening jacket or cardigan
Temperature drops 13°C from day to night
Traveling to United States in September?
Don't let a public holiday surprise you — restaurants, shops, and attractions may be closed.
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Data based on 1994–2024 averages · Last updated: 2024-12-31