14 days forecast San Juan
See the weather for the coming 14 days in San Juan.
Saturday, August 29 
30%
27° / 33°
2
30%Cirrus clouds, also still sun
Total precipitation 0.3 mm
Precipitation chance 10%
UV index 6
Sunday, August 30 
45%
27° / 32°
3
45%Sun and chance of a shower
Total precipitation 1.2 mm
Precipitation chance 40%
UV index 9
Monday, August 31 60%
27° / 33°
3
60%Cirrus clouds, also still sun
Total precipitation 0.5 mm
Precipitation chance 15%
UV index 9
Tuesday, September 1 55%
27° / 33°
3
55%Sun and chance of a shower
Total precipitation 1.4 mm
Precipitation chance 50%
UV index 10
Wednesday, September 2 65%
27° / 32°
3
65%Sun and chance of a shower
Total precipitation 2 mm
Precipitation chance 65%
UV index 10
Thursday, September 3 
60%
27° / 32°
3
60%Sun, but also an occasional shower
Total precipitation 5.4 mm
Precipitation chance 90%
UV index 10
Friday, September 4 35%
27° / 31°
2
35%Sun, but also an occasional shower
Total precipitation 7.5 mm
Precipitation chance 95%
UV index 7
Saturday, September 5 30%
26° / 31°
2
30%Sun, but also an occasional shower
Total precipitation 5.7 mm
Precipitation chance 90%
UV index 6
Sunday, September 6 55%
26° / 32°
2
55%Sun, but also an occasional shower
Total precipitation 3.1 mm
Precipitation chance 80%
UV index 9
Monday, September 7 60%
26° / 32°
2
60%Sun, but also an occasional shower
Total precipitation 3.1 mm
Precipitation chance 80%
UV index 9
Tuesday, September 8 55%
26° / 32°
2
55%Sun, but also an occasional shower
Total precipitation 3.7 mm
Precipitation chance 80%
UV index 8
Wednesday, September 9 
50%
26° / 32°
2
50%Some thunderstorms, also sun
Total precipitation 4.8 mm
Precipitation chance 85%
UV index 8
Thursday, September 10 50%
26° / 32°
2
50%Some thunderstorms, also sun
Total precipitation 5.4 mm
Precipitation chance 90%
UV index 8
Friday, September 11 55%
26° / 32°
2
55%Some thunderstorms, also sun
Total precipitation 8.5 mm
Precipitation chance 95%
UV index 8
Saturday, September 12 55%
26° / 31°
2
55%Some thunderstorms, also sun
Total precipitation 6.1 mm
Precipitation chance 90%
UV index 8