Current sea water temperature:
+79.5°F
| Minimum sea water temperature in December: | 83.5°F |
| Maximum sea water temperature in December: | 78.3°F |
| Average sea water temperature in December: | 80.4°F |
| more information | |
14 days
forecast
forecast
| Cayo Largo |
monthly
weather
weather
| Cayo Largo |
Sea water temperature for the last 10 days:
| December 28 | 79.5°F | December 23 | 80.6°F |
| December 27 | 79.3°F | December 22 | 81.0°F |
| December 26 | 79.9°F | December 21 | 81.1°F |
| December 25 | 80.1°F | December 20 | 81.3°F |
| December 24 | 80.4°F | December 19 | 80.6°F |
Monthly sea water temperature, °F
When is the warmest sea in Cayo Largo?
Based on the data about daily sea water temperature for the last three years the warmest sea in Cayo Largo was noticed in August, September and July.
Monthly Sea Temperatures in Cayo Largo, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 88.5°F. The highest and lowest sea temperatures during the month were 89.8°F and 87.4°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 88.1°F. The highest and lowest sea temperatures during the month were 88.9°F and 86.7°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 87.1°F. The highest and lowest sea temperatures during the month were 88.0°F and 85.8°F.
current
weather
weather
| Cayo Largo |
weather in
January
January
| Cayo Largo |
Best time for vacation in Cayo Largo
Cayo Largo on a weather map
Places in Cuba:
Name
°F
24 Hours Forecast
Cayo Largo
Local time: 17:36
December 28, sunday
1800
79°F
SW
10 mph
10 mph
2100
68°F
W
6 mph
6 mph
December 29, monday
0000
63°F
W
6 mph
6 mph
0300
59°F
W
5 mph
5 mph
0600
57°F
W
5 mph
5 mph
0900
66°F
W
5 mph
5 mph
1200
82°F
W
6 mph
6 mph
1500
82°F
SW
4 mph
4 mph
