Weather in Pittsburgh in September
Pittsburgh, United States averages a high of 24.1°C (75.4°F) and low of 14.5°C (58.1°F) in September, with 10 rain days and 9.3 hours of daily sunshine. Travel score: 80.5/100 (Excellent). The best time to visit Pittsburgh is September.
High
24°C75°F
Low
15°C58°F
🌧️
10
rain days
☀️
9.3
hrs/day sunshine
💧
75%
humidity
81— Excellent
September in Pittsburgh is warm and occasionally wet — excellent conditions for exploring.
What are the average temperatures in Pittsburgh?
How much does it rain in Pittsburgh in September?
Pittsburgh receives an average of 95.8mm of rainfall across 10 rainy days in September. The annual total is 1201.8mm.
What should I pack for Pittsburgh in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 24°C
🧴
Sunscreen SPF 30+
9 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (10 days)
☔
Umbrella
Be prepared for occasional showers
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