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
14
28
42
56
70
84
98
112
81.6
83.2
85.3
86.3
86.5
86.3
86.3
84.3
82.1
81.2
80.5
80.7
75.7
77.3
78.5
79.3
78.8
78.9
78.3
76.6
74.7
73.9
73.8
73.9
| Day temperature | Night temperature |
The warmest month in San Juan is august. The average daily temp is 86.5°F. The average nightly temp is 78.8°F.
Sea water temperature, °F
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
14
28
42
56
70
84
98
112
82.1
83.8
84.9
84.8
83.9
83.1
82.5
81.2
80.1
79.6
79.7
80.5
The warmest sea temperature usually observed in October. Average daily sea water temperature during this month is 84.9°F.
Precipitation total, in.
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0.0
0.7
1.3
2.0
2.6
3.3
3.9
4.6
5.2
1.6
2.9
2.8
3.8
2.8
2.8
1.8
1.9
1.8
1.8
2
1.5
Number of rainy days
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
1
2
3
4
5
6
7
3
4
6
4
4
4
3
2
4
3
4
3
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
2
4
6
8
10
12
14
11
9.2
8.3
9.6
11.2
12.4
11.6
10.9
10.5
11.3
12
11
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
11
9
9
9
9
11
7
9
9
8
11
9
16
17
16
17
17
15
15
16
15
15
13
15
4
4
5
4
5
5
8
6
6
7
4
7
| 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
5.6
6.2
6.2
6.4
6.2
5.7
7
6.7
6.3
6.4
5.6
5.8
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.
sea water
temperature
temperature
| San Juan |
14 days
forecast
forecast
| San Juan |
current
weather
weather
| San Juan |
7 days
forecast
forecast
| San Juan |
Best time for vacation in San Juan
San Juan on a weather map
Leaflet | Tiles © Esri
Places in Puerto Rico:
Name
°F
24 Hours Forecast
San Juan
Local time: 04:17
April 02, wednesday
0600
77°F
W
14 mph
14 mph
0900
79°F
W
17 mph
17 mph
1200
81°F
W
18 mph
18 mph
1500
81°F
W
17 mph
17 mph
1800
79°F
W
17 mph
17 mph
2100
77°F
W
16 mph
16 mph
April 03, thursday
0000
77°F
W
16 mph
16 mph
0300
75°F
W
15 mph
15 mph
