Monthly Weather in San Antonio, United States
What is the average monthly temperature in San Antonio?
The average monthly temperature in San Antonio, Texas, United States ranges from 14.1°C (57.4°F) in December to 32°C (89.7°F) in August. San Antonio temperature by month is given in the table below.
| Month | Celsius | Fahrenheit |
|---|---|---|
| January | 14.2°C | 57.6°F |
| February | 14.4°C | 57.9°F |
| March | 19.6°C | 67.3°F |
| April | 20.6°C | 69.1°F |
| May | 24.3°C | 75.7°F |
| June | 29.2°C | 84.6°F |
| July | 31.2°C | 88.2°F |
| August | 32.0°C | 89.6°F |
| September | 30.1°C | 86.2°F |
| October | 22.8°C | 73.0°F |
| November | 16.2°C | 61.2°F |
| December | 14.1°C | 57.4°F |
What is the hottest month in San Antonio?
The hottest months in San Antonio are August, July and September. During August the average temperature outside is 32°C (89.6°F), in July it is 31.2°C (88.2°F) and during September the air temperature is around 30.1°C (86.2°F).
What is the coldest month in San Antonio?
The coldest months in San Antonio are December, January and February. In December the average air temperature drops to 14.1°C (57.4°F), in January air temperature is 14.2°C (57.6°F) and during February it is 14.4°C (57.9°F).
How much does it rain on average in San Antonio?
On average it rains for 12 month(s) in San Antonio, United States with an average of 8.8 days of rain per month. In total San Antonio has 106 rainy days in a year.
When does it rain the most in San Antonio?
In San Antonio it rains the most during the following months.
- May - on average 3.43mm (0.14 inches) of rainfall per day.
- April - on average 2.5mm (0.1 inches) of rainfall per day.
- October - on average 1.99mm (0.08 inches) of rainfall per day.
- June - on average 1.35mm (0.05 inches) of rainfall per day.
- March - on average 1.19mm (0.05 inches) of rainfall per day.
- November - on average 1.16mm (0.05 inches) of rainfall per day.
Does it snow in San Antonio?
Yes, it snows in San Antonio. The following months have the most amount of snow.
- February. San Antonio has 0.02mm (0 inches) of snowfall and 0 mm (0 inches) of snow on the ground in February.
When is it windy in San Antonio?
The windiest months in San Antonio, United States are July, August and March. In July the average windspeed is 26 km/h (16.2 mph), during August the windspeed is 25.6 km/h (15.9 mph) and in March the windspeed is 24.7 km/h (15.3 mph).
What are the least windy months in San Antonio?
The least windy months in San Antonio are November, December and January. In November the average windspeed is 18 km/h (11.2 mph), during December the windspeed is 18.9 km/h (11.7 mph) and in January the windspeed is 21.5 km/h (13.4 mph).
When is it cloudy in San Antonio?
The cloudiest months in San Antonio, United States are March, November and April. On average in March 65.8% of sky is covered by clouds, in November 60.9% is covered by clouds and in April clouds cover about 60.3% of sky.
When does San Antonio have the clearest sky?
San Antonio has the clearest sky in August, September and July. In August 22.8% of sky is covered by clouds, in September clouds cover around 29.5% and during July clouds cover about 33.6% of sky.
What is the average daylight duration in San Antonio?
The average daylight duration in San Antonio is 12 hours 9 minutes 41 seconds.
Which months have the most daylight in San Antonio?
The longest days in San Antonio are during June, July and May.
- June - 13 hours 59 minutes 52 seconds of daylight.
- July - 13 hours 48 minutes 55 seconds of daylight.
- May - 13 hours 37 minutes 46 seconds of daylight.
Which months have the least daylight in San Antonio?
The shortest days in San Antonio are during December, January and November.
- December - 10 hours 17 minutes 37 seconds of daylight.
- January - 10 hours 30 minutes 14 seconds of daylight.
- November - 10 hours 41 minutes 9 seconds of daylight.
What are the humidity levels in San Antonio throughout the year?
Humidity levels in San Antonio, United States range from 52.3% in August to 76.5% in May.
What are the pressure levels in San Antonio throughout the year?
Pressure levels in San Antonio change from 1008.9 mb (millibars) in June to 1019.6 mb in December.
What is the visibility in San Antonio throughout the year?
Visibility in San Antonio changes from lowest 14.3 km (8.9 miles) in January to highest 16 km (9.9 miles) in September.
What are the UV levels in San Antonio throughout the year?
UV levels change in San Antonio from 5.3 in January to 9.2 in July.
Which months have the highest UV levels in San Antonio throughout the year?
In San Antonio, United States the highest UV index is during July, August and September. During July the average UV index is 9.2, in August UV level is 9 and in September UV index is around 9.
Which months have the lowest UV levels in San Antonio throughout the year?
The lowest UV levels in San Antonio are in January, December and November. In January the average UV index is around 5.3, in December UV index is 5.3 and during November UV level is 5.6.