Average sea water temperature in December:
+82.2°F
| Minimum sea water temperature in December: | 84.6°F |
| Maximum sea water temperature in December: | 80.6°F |
Daily sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 82.8°F. The highest and lowest sea temperatures during the month were 83.5°F and 81.9°F.
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| Isabella |
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Monthly sea water temperature in Isabella, °F
Which Puerto Rico resorts have warmest sea in December?
| Place name | December 2025 | December 2024 |
|---|---|---|
| Aguadilla | 83.0°F | 83.8°F |
| San Juan | 82.8°F | 83.7°F |
| Isabella | 82.8°F | 83.6°F |
| Mayaguez | 82.8°F | 83.6°F |
| Arecibo | 82.7°F | 83.4°F |
| Ponce | 82.5°F | 83.5°F |
Best time for vacation in Isabella
Isabella on a weather map
Places in Puerto Rico:
Name
°F
24 Hours Forecast
Isabella
Local time: 14:38
December 27, saturday
1500

75°F
SW
13 mph
13 mph
1800

72°F
SW
9 mph
9 mph
2100

72°F
W
9 mph
9 mph
December 28, sunday
0000

72°F
W
8 mph
8 mph
0300

72°F
W
7 mph
7 mph
0600

72°F
W
9 mph
9 mph
0900

75°F
W
8 mph
8 mph
1200

75°F
SW
11 mph
11 mph



























