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San Antonio

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San Antonio Weather, Climate and Best Time to Visit

Data source:Meteostat
Update date:2025-09

San Antonio year round climate

  • Spring (March–May): Average 18.3–26.3°C, warm and comfortable climate, more rainfall in April, vibrant plants. Common activities: Outdoor walks, visiting historical sites, enjoying the sunshine. Suggested clothing: Light jacket, long-sleeved shirts, comfortable shoes.
  • Summer (June–August): Average 29.7–30.8°C, hot and dry, high temperatures, but relatively low rainfall. Common activities: Swimming, outdoor activities with shade, visiting museums and indoor attractions. Suggested clothing: Light and breathable clothing, sun hat, sunglasses.
  • Autumn (September–November): Average 23.5–17.2°C, pleasant climate, temperatures gradually decreasing, moderate rainfall. Common activities: Outdoor walks, cycling, enjoying autumn scenery. Suggested clothing: Comfortable long-sleeved shirts, light jacket, comfortable shoes.
  • Winter (December–February): Average 11.4–14.4°C, mild and dry, lower temperatures, low rainfall. Common activities: Visiting indoor attractions, enjoying holiday events. Suggested clothing: Warm jacket, long pants, comfortable shoes.

San Antonio climatological average

Annual average temperature: approx. 22°C / Annual rainfall: approx. 468 mm / Summer humidity: 60%–70% / Rainiest month: April

San Antonio monthly average temperature and precipitation

Month
Air temperature (°C)
Precipitation (mm)
January
11.4°C
65.7
February
13.3°C
32
March
18.3°C
21
April
22.1°C
77
May
26.3°C
48.7
June
29.7°C
36
July
30.3°C
37.3
August
30.8°C
29.3
September
28.7°C
24.3
October
23.5°C
36.3
November
17.2°C
42.7
December
14.4°C
18.3

San Antonio weather for the next seven days

11/22
Saturday
Sunny
30.2°C/15.6°C
11/23
Sunday
Overcast
17.8°C/15.3°C
11/24
Monday
Overcast
27.7°C/17.9°C
11/25
Tuesday
Sunny
28.9°C/13.5°C
11/26
Wednesday
Sunny
20°C/13°C
11/27
Thursday
Sunny
20.1°C/9.7°C
11/28
Friday
Cloudy
21.9°C/12.4°C