World Resorts Cuba Cayo Guillermo Weather

Cayo Guillermo 14 Days Forecast

16.12
tue
Day
75°F
SW 22 mph
Precip.
63%
Night
75°F
W 25 mph
Precip.
0%
17.12
wed
Day
77°F
SW 20 mph
Precip.
0%
Night
77°F
W 17 mph
Precip.
0%
18.12
thu
Day
79°F
W 11 mph
Precip.
0%
Night
79°F
NW 12 mph
Precip.
0%
19.12
fri
Day
77°F
SW 2 mph
Precip.
0%
Night
77°F
SW 11 mph
Precip.
0%
20.12
sat
Day
77°F
SW 16 mph
Precip.
100%
Night
77°F
W 17 mph
Precip.
88%
21.12
sun
Day
79°F
W 16 mph
Precip.
100%
Night
77°F
W 18 mph
Precip.
100%
22.12
mon
Day
77°F
SW 17 mph
Precip.
100%
Night
77°F
SW 25 mph
Precip.
67%
23.12
tue
Day
77°F
SW 22 mph
Precip.
59%
Night
77°F
SW 21 mph
Precip.
100%
24.12
wed
Day
77°F
SW 22 mph
Precip.
100%
Night
77°F
SW 24 mph
Precip.
100%
25.12
thu
Day
77°F
SW 21 mph
Precip.
57%
Night
77°F
SW 24 mph
Precip.
100%
26.12
fri
Day
77°F
W 21 mph
Precip.
0%
Night
77°F
W 17 mph
Precip.
0%
27.12
sat
Day
77°F
W 16 mph
Precip.
69%
Night
75°F
W 19 mph
Precip.
0%
28.12
sun
Day
75°F
SW 16 mph
Precip.
0%
Night
75°F
SW 14 mph
Precip.
84%
29.12
mon
Day
75°F
SW 12 mph
Precip.
85%
Night
75°F
SW 11 mph
Precip.
0%

Sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 80.8°F. The highest and lowest sea temperatures during the month were 82.0°F and 79.0°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

Current weather
21:34
Cayo Guillermo
+75°F
SW 24 mph
Feels like: +79°F
Precip.: 0%
Places in Cuba:
Name
°F
Baracoa
+75°F
Varadero
+72°F
Havana
+75°F
Cayo Santa Maria
+75°F
Cayo Guillermo
+75°F
Cayo Coco
+73°F
Cayo Largo
+72°F
Manzanillo
+75°F
Niquero
+73°F
Holguin
+75°F
Playa Esmeralda
+77°F
Playa Santa Lucia
+75°F
Santa Maria
+75°F
Santiago de Cuba
+75°F
Trinidad
+72°F
all places
24 Hours Forecast
Cayo Guillermo
Local time: 21:34
December 17, wednesday
0000
75°F
W
25 mph
0300
77°F
SW
24 mph
0600
77°F
W
22 mph
0900
77°F
SW
22 mph
1200
77°F
SW
20 mph
1500
77°F
SW
20 mph
1800
77°F
SW
21 mph
2100
77°F
SW
21 mph
Units of measurement: °C / °F