Measurements:
°C
°F
Cayo Guillermo
76°F
W 10 mph
Feels like: 82°F
Precip: 0%
World Resorts Cuba Cayo Guillermo Weather

Cayo Guillermo Sea Water Temperature

Current Sea Water Temperature:
+81.4°F
Maximum Sea Water Temperature in December: 85.6°F
Minimum Sea Water Temperature in December: 78.8°F
Average water temperature in December: 82.4°F

Sea Water Temperature for the Last 10 Days:

December 11 81.4°F December 06 83.4°F
December 10 81.0°F December 05 83.6°F
December 09 81.6°F December 04 83.4°F
December 08 82.2°F December 03 83.8°F
December 07 83.0°F December 02 83.6°F

When is the Warmest Sea for Cayo Guillermo?

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

Average Water Temperature by Month, °F

Sea Water Temperature in September

Select Year: 2024 2023 2022

The average sea surface temperature in September 2024 for Cayo Guillermo was 91.4°F. The maximum and minimum values were 89.8°F and 94.0°F respectively.

Sea Water Temperature in August

Select Year: 2024 2023 2022

The average sea surface temperature in August 2024 for Cayo Guillermo was 91.1°F. The maximum and minimum values were 89.8°F and 92.8°F respectively.

Sea Water Temperature in July

Select Year: 2024 2023 2022

The average sea surface temperature in July 2024 for Cayo Guillermo was 90.0°F. The maximum and minimum values were 88.6°F and 91.0°F respectively.

Best Time to Visit Cayo Guillermo
The most sunny months:
April 13 days
July 12 days
March 12 days
The most warm months:
August 91.2 °F
July 90.7 °F
September 90.2 °F
Warmest sea temperature:
September 89.9 °F
August 89.8 °F
July 89.2 °F
The most cold months:
January 79.8 °F
February 80.8 °F
March 81.6 °F
The most rainy months:
May 7 days
October 7 days
June 6 days
The most windy months:
March 14 mph
November 14 mph
December 14 mph

Cayo Guillermo on the Weather Map

24 Hours Weather Forecast
Cayo Guillermo
Local time: 22:51
12 dec, thursday
0000 76°F
W
10 mph
0300 76°F
SW
10 mph
0600 76°F
SW
11 mph
0900 76°F
SW
12 mph
1200 76°F
SW
16 mph
1500 76°F
SW
17 mph
1800 78°F
SW
17 mph
2100 78°F
SW
24 mph