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Weather in San Antonio, Texas for January 2027

Your guide to San Antonio weather in January - trends and predictions

    Snow Forecast ❄️

  • Snowfall in San Antonio during January is quite rare, with fewer than 2 snowy days on average.

    • Temperatures

  • In general, the average temperature in San Antonio at the beginning of January is 19.9 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 14.6 °C by the end of January.

    • Rain 🌧️

  • San Antonio experiences moderate rainfall in January, with an average of 6 rainy days and a total precipitation of 71.6 mm.

    • More

  • Is January a good time to visit San Antonio? check out the best time to travel to San Antonio page.

  • ✨ Is January a good time to visit San Antonio? – Ask the AI Weatherman

Average dry days
24
Dry days
Average rainy days
6
Rainy days
Average snowy days
1
Snow days
Average temperatures
17°/7°
Temperatures
Average wind speed
21 km/h
Avg max wind
Average humidity
60 %
Avg humidity

San Antonio Weather January

Move between months or click on a day
December
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Partly cloudy
20°
2
Light rain
21°
3
Sunny
21°
4
Patchy rain possible
19°
5
Mist
21°
6
Sunny
21°
7
Overcast
17°
8
Overcast
18°
9
Moderate rain
15°
10
Moderate rain
17°
11
Overcast
21°
12
Sunny
18°
13
Sunny
16°
14
Sunny
16°
15
Partly cloudy
15°
16
Sunny
18°
17
Sunny
17°
18
Sunny
21°
19
Overcast
15°
20
Overcast
10°
21
Light snow
11°
22
Light rain
17°
23
Light rain
17°
24
Moderate rain
17°
25
Light snow
13°
26
Sunny
13°
27
Overcast
12°
28
Patchy rain possible
15°
29
Light rain
20°
30
Patchy rain possible
16°
31
Patchy rain possible
14°

Temperatures trend during January in San Antonio

See the weather trend as well as the moving average line

January weather in San Antonio day by day

Click on a date for more information
December February
Date Weather Temperatures Rain Snow More
Jan. 1 Partly cloudy
Partly cloudy
 20° /9° 0 mm 0 cm
Jan. 2 Light rain
Light rain
 21° /12° 2.9 mm 0 cm
Jan. 3 Sunny
Sunny
 21° /12° 0.3 mm 0 cm
Jan. 4 Patchy rain possible
Patchy rain possible
 19° /10° 1.9 mm 0 cm
Jan. 5 Mist
Mist
 21° /11° 0.5 mm 0 cm
Jan. 6 Sunny
Sunny
 21° /9° 0 mm 0 cm
Jan. 7 Overcast
Overcast
 17° /10° 0.3 mm 0 cm
Jan. 8 Overcast
Overcast
 18° /11° 0.7 mm 0 cm
Jan. 9 Moderate rain
Moderate rain
 15° /9° 13.2 mm 0 cm
Jan. 10 Moderate rain
Moderate rain
 17° /8° 10.3 mm 0 cm
Jan. 11 Overcast
Overcast
 21° /7° 0 mm 0 cm
Jan. 12 Sunny
Sunny
 18° /7° 0 mm 0 cm
Jan. 13 Sunny
Sunny
 16° /6° 0 mm 0 cm
Jan. 14 Sunny
Sunny
 16° /4° 0 mm 0 cm
Jan. 15 Partly cloudy
Partly cloudy
 15° /6° 0.2 mm 0 cm
Jan. 16 Sunny
Sunny
 18° /5° 0 mm 0 cm
Jan. 17 Sunny
Sunny
 17° /6° 0 mm 0 cm
Jan. 18 Sunny
Sunny
 21° /6° 0.7 mm 0 cm
Jan. 19 Overcast
Overcast
 15° /3° 0 mm 0 cm
Jan. 20 Overcast
Overcast
 10° /4° 0.2 mm 0 cm
Jan. 21 Light snow
Light snow
 11° /5° 3 mm 1 cm
Jan. 22 Light rain
Light rain
 17° /6° 9.8 mm 0 cm
Jan. 23 Light rain
Light rain
 17° /9° 3.2 mm 0 cm
Jan. 24 Moderate rain
Moderate rain
 17° /7° 12.5 mm 0 cm
Jan. 25 Light snow
Light snow
 13° /4° 4.5 mm 1.4 cm
Jan. 26 Sunny
Sunny
 13° /5° 0 mm 0 cm
Jan. 27 Overcast
Overcast
 12° /5° 0.1 mm 0 cm
Jan. 28 Patchy rain possible
Patchy rain possible
 15° /7° 2.1 mm 0 cm
Jan. 29 Light rain
Light rain
 20° /8° 2.7 mm 0 cm
Jan. 30 Patchy rain possible
Patchy rain possible
 16° /8° 1.6 mm 0 cm
Jan. 31 Patchy rain possible
Patchy rain possible
 14° /5° 1 mm 0 cm
Next
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.
Change Month
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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 17° and cooler nights around 7°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in San Antonio during January?
Moderate rainfall is anticipated in San Antonio during January, with a total of 71.6 mm spread over approximately 6 days. Considering plans for rainy days is advisable.

Will it snow in San Antonio in January 2027?
San Antonio typically sees 2.3 cm of snowfall during January.

What are the typical wind conditions in San Antonio during January?
The average wind speed in San Antonio during January is 21 km/h, suggesting breezy to windy conditions, depending on your activities.

San Antonio snow forecast January 2027

Track daily snowfall levels and discover San Antonio’s snowy potential this January ❄️
On average, San Antonio sees 1 snowy days during January, with approximately 2.3 cm of total snowfall.

January rainfall patterns in San Antonio

Explore the daily rainfall trends and prepare for San Antonios January weather 💧
Typically, San Antonio has 6 rainy days in January with a total of 71.6 mm of rainfall.

UV exposure in San Antonio during January

Stay informed about UV levels for safe outdoor activities throughout the month of January ☀️
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Get accurate weather forecasts for San Antonio, located at latitude 29.424 and longitude -98.494. Stay updated with localized weather information tailored for San Antonio.

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