14 days forecast San Juan
See the weather for the coming 14 days in San Juan.
Tuesday, August 25 
30%
26° / 29°
3
30%Sun, but also an occasional shower
Total precipitation 3.1 mm
Precipitation chance 80%
UV index 11
Wednesday, August 26 55%
26° / 30°
3
55%Sun, but also an occasional shower
Total precipitation 4 mm
Precipitation chance 85%
UV index 12
Thursday, August 27 40%
26° / 30°
3
40%Sun, but also an occasional shower
Total precipitation 9.1 mm
Precipitation chance 95%
UV index 8
Friday, August 28 
5%
25° / 29°
4
5%Grey and heavy rainfall
Total precipitation 43.9 mm
Precipitation chance 100%
UV index 2
Saturday, August 29 0%
26° / 29°
3
0%Grey and heavy rainfall
Total precipitation 92.9 mm
Precipitation chance 100%
UV index 1
Sunday, August 30 0%
26° / 28°
3
0%Grey and heavy rainfall
Total precipitation 85.8 mm
Precipitation chance 100%
UV index 1
Monday, August 31 5%
26° / 29°
3
5%Grey and heavy rainfall
Total precipitation 65.4 mm
Precipitation chance 100%
UV index 2
Tuesday, September 1 5%
26° / 29°
3
5%Grey and heavy rainfall
Total precipitation 51.3 mm
Precipitation chance 100%
UV index 2
Wednesday, September 2 20%
25° / 29°
3
20%Grey and heavy rainfall
Total precipitation 41.2 mm
Precipitation chance 100%
UV index 4
Thursday, September 3 20%
25° / 30°
2
20%Grey and heavy rainfall
Total precipitation 32.1 mm
Precipitation chance 100%
UV index 4
Friday, September 4 
25%
25° / 30°
2
25%Grey and some period of rain
Total precipitation 28.5 mm
Precipitation chance 100%
UV index 5
Saturday, September 5 
35%
25° / 30°
2
35%Heavy showers possible
Total precipitation 29.9 mm
Precipitation chance 100%
UV index 6
Sunday, September 6 45%
25° / 30°
2
45%Heavy showers possible
Total precipitation 24 mm
Precipitation chance 100%
UV index 6
Monday, September 7 50%
25° / 30°
2
50%Heavy showers possible
Total precipitation 12.8 mm
Precipitation chance 95%
UV index 6
Tuesday, September 8 65%
25° / 31°
2
65%Heavy showers possible
Total precipitation 11.3 mm
Precipitation chance 95%
UV index 9