Contents
- Weather in January
- Frequently asked questions
- Average temperature in January
- Average pressure in January
- Average wind speed in January
- Average humidity in January
- Average rainfall in January
- Average rainfall days in January
- Average snowfall in January
- Average snowfall days in January
- Average daylight in January
- Average sunshine in January
- Average sunshine days in January
- Average UV index in January
- Average cloud cover in January
- Average visibility in January
Weather in January
Temperature
San Antonio notes the coldest temperatures in January, with a high average of 61.7°F (16.5°C) and a low of 44.2°F (6.8°C).Humidity
The average relative humidity in January is 64%.Rainfall
In San Antonio, Texas, in January, during 9.1 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. Throughout the year, there are 144.5 rainfall days, and 22.6" (574mm) of precipitation is accumulated.Snowfall
Months with snowfall in San Antonio are January, February and December. The months with the most snowfall in San Antonio are January and February, with an average 0.08" (2mm) of accumulated snow.Daylight
The average length of the day in January in San Antonio, Texas, is 10h and 31min.On the first day of the month, sunrise is at 7:28 am and sunset at 5:46 pm. On the last day of January, sunrise is at 7:23 am and sunset at 6:10 pm CST.
Sunshine
In San Antonio, the average sunshine in January is 6.4h.UV index
The average daily maximum UV index in January is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for ordinary individuals.Note: In January, the maximum UV index of 4 translates into these guidelines:
Act with care - The suggestion to avoid sunburn is emphasized. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
Frequently asked questions
What month is the coldest in San Antonio?
What is the temperature in January in San Antonio?
What is the average humidity in January in San Antonio?
How many days does it rain in January in San Antonio?
When does it snow the most in San Antonio?
How much does it snow in San Antonio in January?
What is the average length of the day in January in San Antonio?
When is the sunrise / sunset in January in San Antonio?
How many hours of sunshine does San Antonio have in January?
What is the UV index reading in January in San Antonio?
Average temperature in January
San Antonio, TX
- Average high temperature in January: 61.7°F
The warmest month (with the highest average high temperature) is August (96.6°F).
The month with the lowest average high temperature is January (61.7°F).
- Average low temperature in January: 44.2°F
The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).
Average pressure in January
San Antonio, TX
- Average pressure in January: 30.15"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in January
San Antonio, TX
- Average wind speed in January: 8mph
The windiest month (with the highest average wind speed) is May (9mph).
The calmest month (with the lowest average wind speed) is September (6.5mph).
Average humidity in January
San Antonio, TX
- Average humidity in January: 64%
The month with the highest relative humidity is May (73%).
The month with the lowest relative humidity is August (59%).
Average rainfall in January
San Antonio, TX
- Average rainfall in January: 1.14"
The wettest month (with the highest rainfall) is May (3.66").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days in January
San Antonio, TX
- Average rainfall days in January: 9.1 days
The month with the highest number of rainy days is September (17 days).
The month with the least rainy days is January (9.1 days).
Average snowfall in January
San Antonio, TX
- Average snowfall in January: 0.08"
The months with the highest snowfall are January and February (0.08").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in January
San Antonio, TX
- Average snowfall days in January: 0.3 days
The months with the highest number of snowfall days are January and February (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in January /
Average sunshine in January
San Antonio, TX
- Average daylight in January: 10h and 3min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in January: 6h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).
Average sunshine days in January
San Antonio, TX
- Average sunshine days in January: 20.3 days
The month with the most sunshine days is January (20.3 days).
The months with the least sunshine days are May and September (11.8 days).
Average UV index in January
San Antonio, TX
- Average UV index in January: 4
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in January
San Antonio, TX
- Average cloud cover in January: 36
The month with the most cloud cover is March (Cloud cover 47).
The month with the least cloud cover is August (Cloud cover 23).
Average visibility in January
San Antonio, TX
- Average visibility in January: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
San Antonio, Texas, USA
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