Weather in San Francisco in September
San Francisco, Argentina averages a high of 22.3°C (72.1°F) and low of 11.1°C (52°F) in September, with 5 rain days and 10 hours of daily sunshine. Travel score: 87.7/100 (Excellent). The best time to visit San Francisco is November.
High
22°C72°F
Low
11°C52°F
🌧️
5
rain days
☀️
10
hrs/day sunshine
💧
60%
humidity
88— Excellent
September in San Francisco is warm and mostly dry — ideal for sightseeing and outdoor activities.
What are the average temperatures in San Francisco?
How much does it rain in San Francisco in September?
San Francisco receives an average of 46.1mm of rainfall across 5 rainy days in September. The annual total is 936.7mm.
What should I pack for San Francisco in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 22°C
🧴
Sunscreen SPF 30+
10 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Traveling to Argentina 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