Measurements:
°C
°F
Cayo Largo
78°F
NW 3 mph
Feels like: 82°F
Precip: 15%
World Resorts Cuba Cayo Largo Weather

Cayo Largo Sea Water Temperature

Current Sea Water Temperature:
+91.8°F
Maximum Sea Water Temperature in June: 93.6°F
Minimum Sea Water Temperature in June: 84.4°F
Average water temperature in June: 89.2°F

Sea Water Temperature for the Last 10 Days:

June 20 91.8°F June 15 90.0°F
June 19 91.0°F June 14 91.0°F
June 18 91.2°F June 13 89.4°F
June 17 91.4°F June 12 89.4°F
June 16 90.8°F June 11 89.6°F

When is the Warmest Sea for Cayo Largo?

According to our data for the last three years for Cayo Largo the highest average sea water temperature was in August, September and July.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Cayo Largo was 92.8°F. The maximum and minimum values were 91.6°F and 94.2°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Cayo Largo was 92.3°F. The maximum and minimum values were 90.8°F and 93.2°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Cayo Largo was 91.3°F. The maximum and minimum values were 89.8°F and 92.2°F respectively.

Best Time to Visit Cayo Largo
The most sunny months:
March 17 days
February 15 days
April 15 days
The most warm months:
August 91.8 °F
July 91.4 °F
September 90.4 °F
Warmest sea temperature:
August 91.4 °F
September 90.8 °F
July 90.6 °F
The most cold months:
January 80.6 °F
February 81.5 °F
December 83.0 °F
The most rainy months:
October 6 days
September 6 days
May 5 days
The most windy months:
November 14 mph
December 13 mph
January 13 mph

Cayo Largo on the Weather Map

24 Hours Weather Forecast
Cayo Largo
Local time: 06:03
20 jun, saturday
0900 86°F
NW
3 mph
1200 96°F
N
3 mph
1500 94°F
N
7 mph
1800 90°F
NE
2 mph
2100 82°F
SE
2 mph
21 jun, sunday
0000 80°F
W
2 mph
0300 78°F
NW
2 mph
0600 78°F
NW
4 mph

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