14 days forecast San Juan
See the weather for the coming 14 days in San Juan.
Saturday, September 19 
75%
25° / 31°
2
75%Some thunderstorms, also sun
Total precipitation 9.3 mm
Precipitation chance 95%
UV index 12
Sunday, September 20 80%
25° / 31°
2
80%Some thunderstorms, also sun
Total precipitation 6.7 mm
Precipitation chance 90%
UV index 13
Monday, September 21 
70%
25° / 31°
2
70%Sun and chance of a shower
Total precipitation 2.9 mm
Precipitation chance 75%
UV index 12
Tuesday, September 22 65%
25° / 31°
2
65%Some thunderstorms, also sun
Total precipitation 6.1 mm
Precipitation chance 90%
UV index 11
Wednesday, September 23 
60%
26° / 31°
2
60%Sun, but also an occasional shower
Total precipitation 6.2 mm
Precipitation chance 90%
UV index 8
Thursday, September 24 80%
26° / 31°
2
80%Sun and chance of a shower
Total precipitation 3 mm
Precipitation chance 75%
UV index 11
Friday, September 25 70%
26° / 31°
2
70%Sun, but also an occasional shower
Total precipitation 7.4 mm
Precipitation chance 90%
UV index 9
Saturday, September 26 
70%
26° / 31°
2
70%Heavy showers possible
Total precipitation 12.7 mm
Precipitation chance 95%
UV index 9
Sunday, September 27 55%
26° / 31°
2
55%Some thunderstorms, also sun
Total precipitation 7.5 mm
Precipitation chance 95%
UV index 8
Monday, September 28 45%
26° / 31°
2
45%Sun, but also an occasional shower
Total precipitation 3.7 mm
Precipitation chance 80%
UV index 8
Tuesday, September 29 50%
26° / 31°
2
50%Some thunderstorms, also sun
Total precipitation 4.7 mm
Precipitation chance 85%
UV index 8
Wednesday, September 30 55%
26° / 31°
2
55%Some thunderstorms, also sun
Total precipitation 5.5 mm
Precipitation chance 90%
UV index 8
Thursday, October 1 60%
26° / 32°
2
60%Some thunderstorms, also sun
Total precipitation 8 mm
Precipitation chance 95%
UV index 8
Friday, October 2 60%
26° / 31°
2
60%Sun, but also an occasional shower
Total precipitation 6.9 mm
Precipitation chance 90%
UV index 8
Saturday, October 3 60%
26° / 31°
2
60%Sun, but also an occasional shower
Total precipitation 8.1 mm
Precipitation chance 95%
UV index 8