Weather in San Antonio in January
San Antonio, United States averages a high of 17.2°C (63°F) and low of 6.8°C (44.2°F) in January, with 7 rain days and 7.3 hours of daily sunshine. Travel score: 71.9/100 (Good). The best time to visit San Antonio is September.
High
17°C63°F
Low
7°C44°F
🌧️
7
rain days
☀️
7.3
hrs/day sunshine
💧
66%
humidity
72— Good
January in San Antonio is mild and mostly dry — good for most activities.
What are the average temperatures in San Antonio?
How much does it rain in San Antonio in January?
San Antonio receives an average of 53mm of rainfall across 7 rainy days in January. The annual total is 832.6mm.
What should I pack for San Antonio in January?
Essentials
👟
Comfortable walking shoes
Essential for exploring the city
🧥
Mix of light and warm layers
Mild temperatures around 17°C
Recommended
🧴
Sunscreen
Sun protection is still recommended
🕶️
Sunglasses
Useful for sunny periods
🎉Visiting United States in January?
Don't miss any public holidays — check before you book!
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Data based on 1994–2024 averages · Last updated: 2024-12-31