San Antonio has a tropical climate with warm temperatures year-round. The coolest month is Jan (21°C) and the warmest is Aug (31°C). Annual rainfall totals 2729mm.
Monthly Averages
Jan
High27°C80°F
Avg Temp24°C75°F
Low21°C69°F
Precipitation269 mm
Wind9 km/h3 m/s6 mph
Feb
High27°C81°F
Avg Temp24°C75°F
Low21°C70°F
Precipitation198 mm
Wind9 km/h3 m/s6 mph
Mar
High28°C83°F
Avg Temp25°C77°F
Low22°C71°F
Precipitation148 mm
Wind9 km/h3 m/s6 mph
Apr
High29°C85°F
Avg Temp26°C79°F
Low22°C72°F
Precipitation139 mm
Wind8 km/h2 m/s5 mph
May
High31°C87°F
Avg Temp27°C81°F
Low23°C74°F
Precipitation162 mm
Wind7 km/h2 m/s5 mph
Jun
High31°C87°F
Avg Temp27°C81°F
Low24°C75°F
Precipitation203 mm
Wind7 km/h2 m/s5 mph
Jul
High31°C88°F
Avg Temp27°C81°F
Low24°C75°F
Precipitation233 mm
Wind7 km/h2 m/s4 mph
Aug
High31°C88°F
Avg Temp28°C82°F
Low24°C75°F
Precipitation180 mm
Wind8 km/h2 m/s5 mph
Sep
High31°C87°F
Avg Temp27°C81°F
Low24°C74°F
Precipitation223 mm
Wind6 km/h2 m/s4 mph
Oct
High30°C85°F
Avg Temp26°C79°F
Low23°C74°F
Precipitation270 mm
Wind8 km/h2 m/s5 mph
Nov
High28°C83°F
Avg Temp25°C78°F
Low22°C72°F
Precipitation360 mm
Wind10 km/h3 m/s6 mph
Dec
High27°C81°F
Avg Temp24°C76°F
Low22°C71°F
Precipitation344 mm
Wind10 km/h3 m/s6 mph
HighLowPrecipitation
Monthly Wind Speed
km/hm/smph
Frequently Asked Questions
What is the climate like in San Antonio?
San Antonio has an average annual temperature of 26°C with 2729mm of rainfall per year. The warmest month is Aug (31°C) and the coldest is Jan (21°C).
What is the hottest month in San Antonio?
The hottest month in San Antonio is Aug, with an average high of 31°C.
How much rain does San Antonio get?
San Antonio receives 2729mm of precipitation annually. The wettest month is Nov (360mm) and the driest is Apr (139mm).
When is the best time to visit San Antonio?
The best time to visit San Antonio is during Jan, Feb, when temperatures are comfortable and rainfall is relatively low.