World Resorts Cuba Cayo Largo Weather

Cayo Largo sea water temperature

Current sea water temperature:
+82.0°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

Sea water temperature for the last 10 days:

December 4 82.0°F November 29 81.5°F
December 3 82.0°F November 28 82.4°F
December 2 81.1°F November 27 81.9°F
December 1 81.1°F November 26 81.1°F
November 30 81.3°F November 25 80.8°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.

Best time for vacation in Cayo Largo

Sunniest months:
March 18 days
February 16 days
April 16 days
Warmest months:
August 87.6 °F
July 87.2 °F
September 86.4 °F
Warmest sea temp:
August 87.2 °F
September 86.7 °F
July 86.6 °F
Coldest months:
January 77.2 °F
February 78.1 °F
December 79.3 °F
Rainiest months:
October 6 days
September 6 days
May 5 days
Windiest months:
December 14.1 mph
November 13.8 mph
January 13.6 mph

Cayo Largo on a weather map

Cayo Largo
+72°F
W 6 mph
Feels like: +77°F
Precip.: 0%
Places in Cuba:
Name
°F
+77°F
+75°F
+73°F
+72°F
+77°F
+75°F
+75°F
+72°F
+79°F
+72°F
24 Hours Forecast
Cayo Largo
Local time: 22:00
December 05, friday
0000
72°F
W
6 mph
0300
73°F
W
5 mph
0600
73°F
W
5 mph
0900
77°F
W
8 mph
1200
90°F
W
8 mph
1500
88°F
W
6 mph
1800
84°F
NW
3 mph
2100
77°F
W
3 mph
Units of measurement: °C / °F