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