San Antonio Weather in January

Average temperatures, rainfall and packing tips for San Antonio, United States in January

🌡️ Avg high
16°C
🌙 Avg low
5°C
🌧️ Rainfall
~109 mm
📊 Warmth rank
#12 of 12

January in San Antonio at a glance

January in San Antonio is typically mild, with average daytime highs around 16°C and nights near 5°C. It is usually the coldest month of the year in San Antonio.

January is one of the wetter months in San Antonio, with around 109 mm of rain - plan around showers.

What to pack for San Antonio in January

San Antonio - year at a glance

HighLow · January highlighted
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Is January a good time to visit San Antonio?

🧳 January is a workable time to visit San Antonio, with mild days - just pack accordingly.

If your dates are flexible, the most comfortable months in San Antonio are usually February, March, April, November and December.

Other months in San Antonio

January in other cities

← San Antonio weather tomorrow (live)

FAQ

How hot is San Antonio in January?

In January, San Antonio averages a daytime high of about 16°C and a night-time low of around 5°C, based on recent historical data. That makes it the coldest month of the year there.

Does it rain in San Antonio in January?

January is one of the wetter months in San Antonio, with around 109 mm of rain - plan around showers.

Is January a good time to visit San Antonio?

January is a workable time to visit San Antonio, with mild days - just pack accordingly. If your dates are flexible, the most comfortable months in San Antonio are usually February, March, April, November and December.