San Antonio Weather

San Antonio is an ideal holiday destination for sun worshippers for much of the year, with over 300 days of sunshine and not many wet days. The climate is classed as moderate, although most summer days are boiling hot and nights are fairly cool.

Hot summers

The best time to visit San Antonio is perhaps during the spring and autumn seasons, when the sun is not too brutal and daytime temperatures average about 25C to 27C. Make sure you get a hotel with air-conditioning from June to September, as temperatures rise to the mid-30s (C).

Mild season

Even in mid-winter, temperatures are still mild, although nights can get chilly. With moderate temperatures in the winter, its still possible to partake in most of the activities and attractions around town.



Average Temperature (°C)
90
68
45
22
0
 
Jan
9.6
Feb
11.9
Mar
16.5
Apr
20.7
May
24.1
Jun
27.8
Jul
29.4
Aug
29.3
Sep
26.2
Oct
21.2
Nov
15.7
Dec
11.2


Rainfall (mm)
110
82
55
28
0
 
Jan
41.6
Feb
44.1
Mar
44.1
Apr
74.1
May
101.9
Jun
78.3
Jul
53.6
Aug
54.9
Sep
82.8
Oct
71.6
Nov
50.0
Dec
45.1
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