Weather in San Antonio: April
| Average day temperature: | 79.4°F | |
| Average night temperature: | 65.3°F | |
| Number of sunny days: | 8 days | |
| Day length: | 12.5 - 13.3 hours | |
| Number of rainy days: | 2 days | |
| Precipitation totals: | 1.0 in. | |
| more information | ||
14 days
forecast
forecast
| San Antonio |
weather in
May
May
| San Antonio |
Air temperature in April, °F
Show year:
2026
2025
2024
The highest day temperature during April of 2026 was 88°F. At the same time the lowest night temperature was 50°F. Daily and nightly averages during April were 78.6°F and 68.0°F.
Sunny, partly cloudy and cloudy days
Mostly all days in April are cloudy but sunny and partly cloudy days are also possible.
Precipitation total in April, in.
Precipitation total value in San Antonio in April is 1.0 in. Other months of the year show relatively similar values.
Wind speed in April, mph
The average wind speed value in April is 10.3 mph It makes April most windy month of the year.
Average sunny hours
This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in April is: 6.1.
Best time for vacation in San Antonio
San Antonio on a weather map
Places in USA:
Name
°F
24 Hours Forecast
San Antonio
Local time: 03:40
June 22, monday
0600

77°F
N
11 mph
11 mph
0900

81°F
N
15 mph
15 mph
1200

88°F
N
17 mph
17 mph
1500

93°F
NW
14 mph
14 mph
1800

91°F
NW
14 mph
14 mph
2100

84°F
NW
16 mph
16 mph
June 23, tuesday
0000

79°F
NW
11 mph
11 mph
0300

77°F
NW
9 mph
9 mph



























