17.09
thu
thu
Day
90°F
W 9 mph
Precip.
9%
9%
Night
81°F
W 7 mph
Precip.
16%
16%
18.09
fri
fri
Day
86°F
W 7 mph
Precip.
17%
17%
Night
79°F
W 9 mph
Precip.
12%
12%
19.09
sat
sat
Day
86°F
SW 12 mph
Precip.
16%
16%
Night
79°F
W 6 mph
Precip.
11%
11%
20.09
sun
sun
Day
86°F
SW 11 mph
Precip.
16%
16%
Night
77°F
NW 6 mph
Precip.
11%
11%
21.09
mon
mon
Day
86°F
SW 9 mph
Precip.
15%
15%
Night
79°F
NW 8 mph
Precip.
21%
21%
22.09
tue
tue
Day
86°F
W 12 mph
Precip.
11%
11%
Night
79°F
W 9 mph
Precip.
35%
35%
23.09
wed
wed
Day
84°F
W 16 mph
Precip.
22%
22%
Night
79°F
W 11 mph
Precip.
24%
24%
sea water
temperature
temperature
| Isabella |
monthly
weather
weather
| Isabella |
current
weather
weather
| Isabella |
14 days
forecast
forecast
| Isabella |
Sea water temperature in September, °F
Show year:
2026
2025
2024
The average sea water temperature in September of 2026 was 85.3°F. The highest and lowest sea temperatures during the month were 85.6°F and 84.9°F.
Sea water temperature in October, °F
Show year:
2025
2024
2023
The average sea water temperature in October of 2025 was 85.5°F. The highest and lowest sea temperatures during the month were 86.0°F and 84.6°F.
Air temperature in Isabella, °F
Precipitation total in Isabella, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Isabella
Isabella on a weather map
Places in Puerto Rico:
Name
°F
24 Hours Forecast
Isabella
Local time: 00:58
September 17, thursday
0300
77°F
W
11 mph
11 mph
0600
77°F
NW
7 mph
7 mph
0900
82°F
W
7 mph
7 mph
1200
90°F
W
9 mph
9 mph
1500
88°F
NW
4 mph
4 mph
1800
84°F
W
10 mph
10 mph
2100
81°F
W
13 mph
13 mph
September 18, friday
0000
81°F
W
7 mph
7 mph
