Average data for 10 years
1 August
Thursday
+28°
+22°
2 August
Friday
+29°
+22°
3 August
Saturday
+28°
+22°
4 August
Sunday
+28°
+21°
5 August
Monday
+27°
+20°
6 August
Tuesday
+27°
+20°
7 August
Wednesday
+28°
+20°
8 August
Thursday
+28°
+20°
9 August
Friday
+28°
+21°
10 August
Saturday
+28°
+21°
11 August
Sunday
+29°
+22°
12 August
Monday
+29°
+23°
13 August
Tuesday
+29°
+22°
14 August
Wednesday
+29°
+22°
15 August
Thursday
+30°
+23°
16 August
Friday
+30°
+23°
17 August
Saturday
+29°
+23°
18 August
Sunday
+27°
+21°
19 August
Monday
+28°
+21°
20 August
Tuesday
+28°
+21°
21 August
Wednesday
+27°
+21°
22 August
Thursday
+28°
+22°
23 August
Friday
+28°
+23°
24 August
Saturday
+29°
+25°
25 August
Sunday
+29°
+24°
26 August
Monday
+29°
+24°
27 August
Tuesday
+29°
+24°
28 August
Wednesday
+30°
+24°
29 August
Thursday
+30°
+24°
30 August
Friday
+29°
+23°
31 August
Saturday
+29°
+23°
August in San Bernardino is the hottest month of the year. In August, the weather in San Bernardino is typically hot. Average daily high temperature in August is about 29 degrees above zero. On average, San Bernardino has 28 sunny and 3 partly cloudy days in August.