Average data for 10 years
1 September
Sunday
+29°
+27°
2 September
Monday
+29°
+27°
3 September
Tuesday
+28°
+27°
4 September
Wednesday
+28°
+26°
5 September
Thursday
+29°
+27°
6 September
Friday
+29°
+27°
7 September
Saturday
+29°
+27°
8 September
Sunday
+29°
+27°
9 September
Monday
+29°
+27°
10 September
today
+28°
+27°
11 September
tomorrow
+29°
+27°
12 September
Thursday
+29°
+27°
13 September
Friday
+29°
+27°
14 September
Saturday
+29°
+27°
15 September
Sunday
+29°
+27°
16 September
Monday
+29°
+27°
17 September
Tuesday
+29°
+26°
18 September
Wednesday
+29°
+27°
19 September
Thursday
+28°
+26°
20 September
Friday
+28°
+27°
21 September
Saturday
+28°
+27°
22 September
Sunday
+28°
+27°
23 September
Monday
+29°
+26°
24 September
Tuesday
+29°
+27°
25 September
Wednesday
+29°
+27°
26 September
Thursday
+29°
+27°
27 September
Friday
+29°
+27°
28 September
Saturday
+29°
+27°
29 September
Sunday
+29°
+27°
30 September
Monday
+29°
+26°
Cities near you
Dominican Republic
Santo Domingo
Dominican Republic
Punta Cana
Saint Kitts and Nevis
Basseterre
The United States Virgin Islands
Cyril E. King Airport
Dominican Republic
Boca Chica
Cities with similar weather in September
Thailand
Pattaya
Vietnam
Nha Trang
Thailand
Bangkok
Dominican Republic
Santo Domingo
Cuba
Varadero
September in San Juan is the hottest month of the year. In September, the weather in San Juan is typically hot. Average daily high temperature in September is about 29 degrees above zero. On average, San Juan has 12 rainy, 11 sunny, and 7 partly cloudy days in September. The rains are usually heavy. September as well as May, July, August, and October is considered the most uncomfortable time to visit San Juan.