Weather in San Luis Potosí in September
San Luis Potosí, Mexico averages a high of 23.7°C (74.7°F) and low of 14.5°C (58.1°F) in September, with 12 rain days and 10 hours of daily sunshine. Travel score: 78.3/100 (Good). The best time to visit San Luis Potosí is April.
High
24°C75°F
Low
15°C58°F
🌧️
12
rain days
☀️
10
hrs/day sunshine
💧
77%
humidity
78— Good
September in San Luis Potosí is warm and occasionally wet — pack an umbrella and enjoy indoor attractions too.
What are the average temperatures in San Luis Potosí?
How much does it rain in San Luis Potosí in September?
San Luis Potosí receives an average of 79.5mm of rainfall across 12 rainy days in September. The annual total is 453.2mm.
What should I pack for San Luis Potosí in September?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
👕
Light layers and t-shirts
Warm weather around 24°C
🧴
Sunscreen SPF 30+
10 hours of sunshine daily
🕶️
Sunglasses
Protect your eyes from bright sun
Recommended
🧥
Light rain jacket
Some rainy days expected (12 days)
☔
Umbrella
Be prepared for occasional showers
Traveling to Mexico 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