Weather in Fontana in September
Fontana, United States averages a high of 31.7°C (89.1°F) and low of 17.4°C (63.3°F) in September, with 1 rain days and 11.7 hours of daily sunshine. Travel score: 98.4/100 (Excellent). The best time to visit Fontana is June.
High
32°C89°F
Low
17°C63°F
🌧️
1
rain days
☀️
11.7
hrs/day sunshine
💧
50%
humidity
98— Excellent
September in Fontana is hot and dry — excellent conditions for exploring.
What are the average temperatures in Fontana?
How much does it rain in Fontana in September?
Fontana receives an average of 6.7mm of rainfall across 1 rainy days in September. The annual total is 438.3mm.
What should I pack for Fontana in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light, breathable clothing
Hot weather with highs around 32°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 14°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