San Antonio
January
Weather in San Antonio for January 2025
Your guide to San Antonio weather in January - trends and predictions
In general, the average temperature in San Antonio at the beginning of January is 20.4 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 16.7 °F by the end of January.
With an average of 3 rainy days, San Antonio experiences minimal rainfall in January, ensuring that most days remain pleasantly dry.
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28
Dry days
3
Rainy days
0
Snow days
22°/6°
Temperatures
20 km/h
Avg max wind
61 %
Avg humidity
San Antonio in January average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  21° | 2  18° | 3  21° | 4 20° | 5 21° | ||
| 6  22° | 7 20° | 8 19° | 9 18° | 10 22° | 11 27° | 12 19° |
| 13 19° | 14 15° | 15 14° | 16 15° | 17 18° | 18  25° | 19 17° |
| 20 13° | 21 12° | 22 19° | 23 18° | 24 19° | 25 19° | 26 18° |
| 27 15° | 28 17° | 29 22° | 30 14° | 31 12° |
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Temperatures trend during January in San Antonio
See the weather trend as well as the moving average line
January weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Jan. 1 | Partly cloudy | 21° /11° | 0 mm | 6 | |
| Jan. 2 | Patchy rain possible | 18° /12° | 5.8 mm | 5 | |
| Jan. 3 | Sunny | 21° /10° | 0.7 mm | 5 | |
| Jan. 4 | Partly cloudy | 20° /8° | 0.5 mm | 5 | |
| Jan. 5 | Sunny | 21° /10° | 0.9 mm | 5 | |
| Jan. 6 | Overcast | 22° /10° | 0 mm | 6 | |
| Jan. 7 | Patchy rain possible | 20° /11° | 0.6 mm | 5 | |
| Jan. 8 | Overcast | 19° /11° | 1.4 mm | 5 | |
| Jan. 9 | Patchy rain possible | 18° /9° | 0.1 mm | 5 | |
| Jan. 10 | Partly cloudy | 22° /9° | 0 mm | 6 | |
| Jan. 11 | Overcast | 27° /12° | 0 mm | 7 | |
| Jan. 12 | Sunny | 19° /9° | 0 mm | 6 | |
| Jan. 13 | Sunny | 19° /5° | 0 mm | 5 | |
| Jan. 14 | Sunny | 15° /3° | 0 mm | 5 | |
| Jan. 15 | Partly cloudy | 14° /5° | 0.4 mm | 4 | |
| Jan. 16 | Patchy rain possible | 15° /5° | 0.1 mm | 4 | |
| Jan. 17 | Sunny | 18° /4° | 0 mm | 6 | |
| Jan. 18 | Moderate rain at times | 25° /9° | 1.4 mm | 6 | |
| Jan. 19 | Overcast | 17° /6° | 0 mm | 5 | |
| Jan. 20 | Patchy rain possible | 13° /5° | 0.3 mm | 4 | |
| Jan. 21 | Moderate rain at times | 12° /7° | 3.2 mm | 3 | |
| Jan. 22 | Sunny | 19° /7° | 19.6 mm | 5 | |
| Jan. 23 | Overcast | 18° /10° | 6.4 mm | 4 | |
| Jan. 24 | Moderate or heavy rain shower | 19° /11° | 17.3 mm | 4 | |
| Jan. 25 | Sunny | 19° /8° | 0 mm | 6 | |
| Jan. 26 | Sunny | 18° /7° | 0 mm | 5 | |
| Jan. 27 | Overcast | 15° /7° | 0.1 mm | 4 | |
| Jan. 28 | Patchy rain possible | 17° /8° | 0.8 mm | 5 | |
| Jan. 29 | Patchy rain possible | 22° /10° | 0.5 mm | 6 | |
| Jan. 30 | Patchy rain possible | 14° /7° | 1.2 mm | 4 | |
| Jan. 31 | Moderate rain at times | 12° /6° | 2.1 mm | 4 | |
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Important Notice
Our weather forecast for San Antonio in January is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the San Antonio forecast closer to your planned date for the most up-to-date weather information.
San Antonio in January - FAQ
What are the expected maximum and minimum temperatures in San Antonio during January?
Enjoy moderate daytime temperatures of up to 22° and cooler nights around 6°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in San Antonio during January?
Significant rainfall exceeding 126.7 mm is expected in San Antonio during January, occurring over more than 3 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in San Antonio during January?
The average wind speed in San Antonio during January is 20 km/h, suggesting breezy to windy conditions, depending on your activities.
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