Please click on any column to get detailed information about San Juan weather in that particular month. You will get daily weather information for that month for the last several years.
Day & Night air temperature, °F
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
15
30
45
60
75
90
105
120
87.9
84.1
77.2
71.1
63.7
58.8
59.7
64.4
74.5
82.8
87.1
89.4
72.2
67.4
61.5
55.9
50.4
45.5
46.9
52.3
61.6
70.4
74.0
75.8
Day temperature | Night temperature |
The warmest month in San Juan is january. The average daily temp is 89.4°F. The average nightly temp is 75.8°F.
Precipitation total, in.
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.1
0.1
0.2
0.3
0.3
0.4
0.5
0.1
0.2
0.3
0.1
0.1
0.1
0.1
0
0.1
0.4
0.2
0.2
Number of rainy days
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
2
0
0
1
0
0
0
0
0
0
1
0
0
This chart shows averages for the last three years. It shows medium and heavy rains only, it doesn't show light rains.
Wind speed, mph
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
1
2
3
4
5
6
7
8
9
10
11
12
10
9.6
9.2
8.7
7.1
6.2
5.8
6.1
6.9
8.3
8.8
9.1
Sunny, partly cloudy and cloudy days
1
2
3
4
5
6
7
8
9
10
11
12
0
5
10
15
20
25
30
35
2
2
2
2
2
3
2
6
5
3
3
2
2
3
4
3
7
8
9
24
23
26
26
27
28
26
25
26
22
18
20
Cloudy days | Partly cloudy days | Sunny days |
Average sunny hours
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
1
2
3
4
5
6
7
8
9
10
11
12
13
11.4
11.4
10.9
10.6
9.5
9.4
8.8
8.8
9.7
9.4
9.8
10.4
Sunny hours are calculated based on the average daily number of hours while sunlight can reach the ground. It depends on day length and cloudiness during the day.
* Charts above show average data for the last 3 years.
Best time for vacation in San Juan
San Juan on a weather map
Leaflet | Tiles © Esri
Places in Argentina:
Name
°F
24 Hours Forecast
San Juan
Local time: 08:38
April 17, thursday
0900

63°F
N
7 mph
7 mph
1200

70°F
NW
9 mph
9 mph
1500

77°F
NW
11 mph
11 mph
1800

77°F
N
12 mph
12 mph
2100

68°F
NE
9 mph
9 mph
April 18, friday
0000

64°F
N
10 mph
10 mph
0300

63°F
N
6 mph
6 mph
0600

61°F
N
11 mph
11 mph