Measurements:
°C
°F
Cayo Largo
62°F
S 10 mph
Feels like: 60°F
Precip: 0%
World Resorts Cuba Cayo Largo Weather

Cayo Largo Sea Water Temperature

Current Sea Water Temperature:
+81.8°F
Maximum Sea Water Temperature in January: 85.6°F
Minimum Sea Water Temperature in January: 77.8°F
Average water temperature in January: 82.3°F

Sea Water Temperature for the Last 10 Days:

January 28 81.8°F January 23 81.2°F
January 27 83.6°F January 22 81.0°F
January 26 83.0°F January 21 81.6°F
January 25 82.4°F January 20 81.8°F
January 24 82.4°F January 19 81.8°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 18 days
February 16 days
April 16 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 81.2 °F
March 82.8 °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: 01:23
29 jan, thursday
0300 62°F
SE
6 mph
0600 64°F
S
8 mph
0900 70°F
S
11 mph
1200 74°F
S
11 mph
1500 76°F
S
7 mph
1800 72°F
S
5 mph
2100 70°F
SW
6 mph
30 jan, friday
0000 70°F
SW
4 mph

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