17.07
fri
fri
Day
88°F
W 17 mph
Precip.
3%
3%
Night
79°F
W 12 mph
Precip.
21%
21%
18.07
sat
sat
Day
86°F
W 19 mph
Precip.
3%
3%
Night
79°F
W 13 mph
Precip.
27%
27%
19.07
sun
sun
Day
86°F
W 17 mph
Precip.
4%
4%
Night
81°F
W 11 mph
Precip.
19%
19%
20.07
mon
mon
Day
86°F
W 17 mph
Precip.
4%
4%
Night
79°F
W 13 mph
Precip.
36%
36%
21.07
tue
tue
Day
84°F
SW 13 mph
Precip.
17%
17%
Night
79°F
W 8 mph
Precip.
18%
18%
22.07
wed
wed
Day
86°F
W 14 mph
Precip.
23%
23%
Night
79°F
NW 8 mph
Precip.
13%
13%
23.07
thu
thu
Day
88°F
W 15 mph
Precip.
2%
2%
Night
79°F
W 11 mph
Precip.
10%
10%
24.07
fri
fri
Day
86°F
W 17 mph
Precip.
12%
12%
Night
79°F
W 12 mph
Precip.
27%
27%
25.07
sat
sat
Day
84°F
W 17 mph
Precip.
12%
12%
Night
79°F
W 12 mph
Precip.
28%
28%
26.07
sun
sun
Day
86°F
W 17 mph
Precip.
8%
8%
Night
79°F
NW 9 mph
Precip.
22%
22%
27.07
mon
mon
Day
88°F
W 15 mph
Precip.
6%
6%
Night
79°F
NW 10 mph
Precip.
20%
20%
28.07
tue
tue
Day
86°F
W 17 mph
Precip.
9%
9%
Night
79°F
NW 10 mph
Precip.
22%
22%
29.07
wed
wed
Day
86°F
W 16 mph
Precip.
13%
13%
Night
79°F
W 12 mph
Precip.
21%
21%
30.07
thu
thu
Day
86°F
W 18 mph
Precip.
9%
9%
Night
81°F
W 12 mph
Precip.
17%
17%
sea water
temperature
temperature
| San Juan |
monthly
weather
weather
| San Juan |
current
weather
weather
| San Juan |
7 days
forecast
forecast
| San Juan |
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 83.4°F. The highest and lowest sea temperatures during the month were 83.7°F and 83.1°F.
Air temperature in San Juan, °F
Precipitation total in San Juan, in.
* Charts above show average data for the last 3 years.
Best time for vacation in San Juan
San Juan on a weather map
Places in Puerto Rico:
Name
°F
24 Hours Forecast
San Juan
Local time: 13:12
July 17, friday
1500
86°F
W
19 mph
19 mph
1800
84°F
W
17 mph
17 mph
2100
81°F
W
14 mph
14 mph
July 18, saturday
0000
79°F
W
12 mph
12 mph
0300
79°F
W
12 mph
12 mph
0600
79°F
W
11 mph
11 mph
0900
82°F
W
15 mph
15 mph
1200
86°F
W
19 mph
19 mph
