World Resorts Cuba Cayo Largo Weather

Cayo Largo sea water temperature

Current sea water temperature:
+79.7°F
Minimum sea water temperature in January: 82.0°F
Maximum sea water temperature in January: 75.0°F
Average sea water temperature in January: 79.1°F

Sea water temperature for the last 10 days:

January 26 79.7°F January 21 78.4°F
January 25 79.2°F January 20 78.6°F
January 24 79.2°F January 19 78.6°F
January 23 78.1°F January 18 78.8°F
January 22 77.9°F January 17 79.2°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
March 79.5 °F
Rainiest months:
October 6 days
September 6 days
May 5 days
Windiest months:
November 13.8 mph
January 13.6 mph
December 13.6 mph

Cayo Largo on a weather map

Cayo Largo
+90°F
NE 5 mph
Feels like: +99°F
Precip.: 0%
Places in Cuba:
Name
°F
+79°F
+84°F
+79°F
+88°F
+90°F
+84°F
+82°F
+82°F
+81°F
+86°F
24 Hours Forecast
Cayo Largo
Local time: 11:48
January 26, monday
1200
90°F
NE
5 mph
1500
93°F
NE
7 mph
1800
84°F
S
6 mph
2100
79°F
S
6 mph
January 27, tuesday
0000
73°F
S
11 mph
0300
70°F
S
14 mph
0600
66°F
S
13 mph
0900
68°F
S
12 mph
Units of measurement: °C / °F