San Antonio Weather in January

San Antonio in January sees high daytime temperatures of 28°C (82°F) and nighttime lows of 18°C (64°F). Moderate rainfall is typical, with around 59 mm (2.3 in) for the month.

Rainfall in San Antonio in January

The climate data from previous years indicates about 12 days of rain, averaging 59 mm (2.3 in) for the month. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.

Temperature in San Antonio in January

January is a good time to be in San Antonio. Days are excellent, reaching 28°C (82°F), with nights around 18°C (64°F). This gives the month a fairly typical daily rhythm, with warmer afternoons and more comfortable nights. With overnight lows of 18°C (64°F), evenings can feel noticeably cooler than the daytime. An extra layer is a good idea, though the cool air makes for a good night's sleep. Despite being the month with the lowest temperatures, it remains comfortably warm throughout.

Sunshine in San Antonio in January

The month brings about 171 hours of sunlight, offering a comfortable mix of sun and overcast.

Our weather planner can help you find worldwide destinations with pleasant weather during this period. January and December typically offer the best weather for San Antonio.