Average data for 10 years
1 August
Friday
+22°
+8°
2 August
Saturday
+22°
+8°
3 August
Sunday
+21°
+9°
4 August
Monday
+21°
+8°
5 August
Tuesday
+21°
+8°
6 August
Wednesday
+21°
+7°
7 August
Thursday
+21°
+7°
8 August
Friday
+21°
+7°
9 August
Saturday
+21°
+7°
10 August
Sunday
+21°
+7°
11 August
Monday
+21°
+7°
12 August
Tuesday
+21°
+7°
13 August
Wednesday
+21°
+6°
14 August
Thursday
+21°
+7°
15 August
Friday
+21°
+7°
16 August
Saturday
+20°
+7°
17 August
Sunday
+21°
+6°
18 August
Monday
+21°
+7°
19 August
Tuesday
+20°
+7°
20 August
Wednesday
+20°
+7°
21 August
Thursday
+21°
+7°
22 August
Friday
+21°
+7°
23 August
Saturday
+21°
+7°
24 August
Sunday
+21°
+7°
25 August
Monday
+21°
+7°
26 August
Tuesday
+21°
+7°
27 August
Wednesday
+21°
+7°
28 August
Thursday
+20°
+6°
29 August
Friday
+20°
+6°
30 August
Saturday
+21°
+6°
31 August
Sunday
+21°
+6°
Cities with similar weather in August
Belgium
Brussels
Switzerland
Geneva
Armenia
Gyumri
Peru
Lima
Switzerland
Bern
In August, the weather in Boulder is typically warm. Average daily high temperature in August is about 21 degrees above zero. On average, Boulder has 21 rainy, 8 sunny, and 2 partly cloudy days in August. The rains are usually heavy. August as well as February, March, May, and June is considered the most uncomfortable time to visit Boulder.