Current sea water temperature:
+80.1°F
| Minimum sea water temperature in March: | 83.1°F |
| Maximum sea water temperature in March: | 77.0°F |
| Average sea water temperature in March: | 79.9°F |
| more information | |
14 days
forecast
forecast
| Cayo Largo |
monthly
weather
weather
| Cayo Largo |
Sea water temperature for the last 10 days:
| March 31 | 80.1°F | March 26 | 79.2°F |
| March 30 | 79.9°F | March 25 | 78.6°F |
| March 29 | 79.9°F | March 24 | 78.1°F |
| March 28 | 79.9°F | March 23 | 78.1°F |
| March 27 | 78.6°F | March 22 | 78.6°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
April
April
| 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: 16:53
March 31, tuesday
1800

81°F
W
15 mph
15 mph
2100

75°F
W
13 mph
13 mph
April 01, wednesday
0000

73°F
W
11 mph
11 mph
0300

73°F
W
9 mph
9 mph
0600

72°F
W
7 mph
7 mph
0900

79°F
W
11 mph
11 mph
1200

82°F
W
12 mph
12 mph
1500

81°F
W
12 mph
12 mph



























