World Resorts Cuba Cayo Guillermo Weather

Cayo Guillermo 7 Days Forecast

26.12
fri
Day
73°F
SW 9 mph
Precip.
0%
Night
70°F
W 9 mph
Precip.
0%
27.12
sat
Day
73°F
SW 10 mph
Precip.
0%
Night
70°F
SW 11 mph
Precip.
0%
28.12
sun
Day
72°F
SW 10 mph
Precip.
0%
Night
75°F
W 12 mph
Precip.
0%
29.12
mon
Day
75°F
W 6 mph
Precip.
0%
Night
75°F
SW 9 mph
Precip.
60%
30.12
tue
Day
73°F
SW 5 mph
Precip.
0%
Night
75°F
SW 7 mph
Precip.
0%
31.12
wed
Day
73°F
NE 6 mph
Precip.
0%
Night
73°F
S 12 mph
Precip.
73%
01.01
thu
Day
73°F
SW 9 mph
Precip.
100%
Night
72°F
S 11 mph
Precip.
22%

Sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 80.2°F. The highest and lowest sea temperatures during the month were 82.0°F and 77.7°F.

Sea water temperature in January, °F

Show year:
2025
2024
2023

The average sea water temperature in January of 2025 was 76.7°F. The highest and lowest sea temperatures during the month were 78.4°F and 74.8°F.

Air temperature in Cayo Guillermo, °F

Precipitation total in Cayo Guillermo, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Cayo Guillermo

Sunniest months:
April 13 days
March 12 days
May 11 days
Warmest months:
August 86.9 °F
July 86.5 °F
September 86.0 °F
Warmest sea temp:
September 86.0 °F
August 85.9 °F
July 85.2 °F
Coldest months:
January 76.6 °F
February 77.6 °F
March 78.4 °F
Rainiest months:
May 7 days
October 7 days
August 6 days
Windiest months:
March 14.5 mph
November 14.2 mph
December 14.0 mph

Cayo Guillermo on a weather map

Cayo Guillermo
+73°F
SW 9 mph
Feels like: +77°F
Precip.: 0%
Places in Cuba:
Name
°F
+68°F
+72°F
+70°F
+61°F
+70°F
+68°F
+70°F
+63°F
+73°F
+63°F
24 Hours Forecast
Cayo Guillermo
Local time: 02:12
December 26, friday
0300
73°F
SW
9 mph
0600
73°F
SW
9 mph
0900
73°F
SW
9 mph
1200
73°F
SW
9 mph
1500
72°F
SW
7 mph
1800
72°F
SW
8 mph
2100
70°F
SW
11 mph
December 27, saturday
0000
70°F
W
9 mph
Units of measurement: °C / °F