San Antonio Weather Year-Round — Best Time to Visit
San Antonio, United States has warm weather year-round. The best time to visit is September (score: 88/100). Annual average high: 26.6°C, total rainfall: 833mm.
When is the best time to visit San Antonio?
88
September is the best month to visit San Antonio with a travel score of 88/100 (Excellent).
Expect highs of 31.9°C, 8 rain days, and 10.5 hours of daily sunshine.
View September weather details →Travel Score by Month
72
Jan
74
Feb
77
Mar
84
Apr
82
May
85
Jun
86
Jul
86
Aug
88
Sep
86
Oct
78
Nov
71
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in San Antonio each month?
26.6°C
Avg High
16.3°C
Avg Low
833mm
Annual Rain
How much rain does San Antonio get?
San Antonio receives 833mm of rain annually. The wettest month is typically May with 109mm, while December is the driest.
What is the weather like each month in San Antonio?
January
72
17°C
Low: 7°C
7 rain days
Good
February
74
19°C
Low: 9°C
7 rain days
Good
March
77
23°C
Low: 12°C
9 rain days
Good
April
84
27°C
Low: 16°C
9 rain days
Excellent
May
82
30°C
Low: 20°C
11 rain days
Excellent
June
85
33°C
Low: 23°C
9 rain days
Excellent
July
86
35°C
Low: 24°C
6 rain days
Excellent
August
86
35°C
Low: 25°C
6 rain days
Excellent
September
Best time to visit88
32°C
Low: 22°C
8 rain days
Excellent
October
86
28°C
Low: 17°C
8 rain days
Excellent
November
78
22°C
Low: 12°C
7 rain days
Good
December
71
18°C
Low: 8°C
7 rain days
Good
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What cities are near San Antonio?
Data based on 1994–2024 averages · Last updated: 2024-12-31