28.10
wed
wed
Day
88°F
W 13 mph
Precip.
4%
4%
Night
81°F
NW 7 mph
Precip.
9%
9%
29.10
thu
thu
Day
86°F
W 13 mph
Precip.
15%
15%
Night
79°F
NW 7 mph
Precip.
11%
11%
30.10
fri
fri
Day
86°F
W 14 mph
Precip.
12%
12%
Night
81°F
NW 7 mph
Precip.
10%
10%
31.10
sat
sat
Day
86°F
W 14 mph
Precip.
4%
4%
Night
81°F
W 9 mph
Precip.
21%
21%
01.11
sun
sun
Day
84°F
W 13 mph
Precip.
35%
35%
Night
81°F
W 9 mph
Precip.
31%
31%
02.11
mon
mon
Day
82°F
W 11 mph
Precip.
30%
30%
Night
81°F
NW 9 mph
Precip.
22%
22%
03.11
tue
tue
Day
84°F
W 10 mph
Precip.
47%
47%
Night
79°F
N 5 mph
Precip.
31%
31%
sea water
temperature
temperature
| San Juan |
monthly
weather
weather
| San Juan |
current
weather
weather
| San Juan |
14 days
forecast
forecast
| San Juan |
Sea water temperature in October, °F
Show year:
2026
2025
2024
The average sea water temperature in October of 2026 was 85.6°F. The highest and lowest sea temperatures during the month were 86.2°F and 85.5°F.
Sea water temperature in November, °F
Show year:
2025
2024
2023
The average sea water temperature in November of 2025 was 84.3°F. The highest and lowest sea temperatures during the month were 84.7°F and 83.5°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: 06:43
October 28, wednesday
0900
82°F
NW
7 mph
7 mph
1200
88°F
W
13 mph
13 mph
1500
86°F
W
16 mph
16 mph
1800
82°F
NW
12 mph
12 mph
2100
81°F
NW
8 mph
8 mph
October 29, thursday
0000
81°F
NW
7 mph
7 mph
0300
81°F
NW
9 mph
9 mph
0600
79°F
NW
8 mph
8 mph
