17.12
wed
wed
Day
77°F
W 19 mph
Precip.
0%
0%
Night
77°F
W 18 mph
Precip.
0%
0%
18.12
thu
thu
Day
79°F
W 15 mph
Precip.
0%
0%
Night
77°F
NW 12 mph
Precip.
0%
0%
19.12
fri
fri
Day
77°F
N 1 mph
Precip.
0%
0%
Night
77°F
SW 9 mph
Precip.
0%
0%
20.12
sat
sat
Day
77°F
SW 12 mph
Precip.
0%
0%
Night
77°F
W 14 mph
Precip.
83%
83%
21.12
sun
sun
Day
79°F
W 14 mph
Precip.
69%
69%
Night
77°F
SW 17 mph
Precip.
55%
55%
22.12
mon
mon
Day
77°F
SW 18 mph
Precip.
100%
100%
Night
77°F
SW 27 mph
Precip.
100%
100%
23.12
tue
tue
Day
75°F
SW 30 mph
Precip.
100%
100%
Night
75°F
W 25 mph
Precip.
68%
68%
sea water
temperature
temperature
| Cayo Guillermo |
monthly
weather
weather
| Cayo Guillermo |
current
weather
weather
| Cayo Guillermo |
14 days
forecast
forecast
| Cayo Guillermo |
Sea water temperature in December, °F
Show year:
2025
2024
2023
The average sea water temperature in December of 2025 was 80.7°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
Cayo Guillermo on a weather map
Places in Cuba:
Name
°F
24 Hours Forecast
Cayo Guillermo
Local time: 09:43
December 17, wednesday
1200
77°F
W
19 mph
19 mph
1500
77°F
SW
17 mph
17 mph
1800
77°F
SW
19 mph
19 mph
2100
77°F
SW
20 mph
20 mph
December 18, thursday
0000
77°F
W
18 mph
18 mph
0300
77°F
W
16 mph
16 mph
0600
77°F
W
16 mph
16 mph
0900
77°F
W
16 mph
16 mph
