18.12
thu
thu
Day
79°F
W 14 mph
Precip.
0%
0%
Night
79°F
NW 11 mph
Precip.
0%
0%
19.12
fri
fri
Day
75°F
SE 2 mph
Precip.
0%
0%
Night
75°F
S 9 mph
Precip.
0%
0%
20.12
sat
sat
Day
75°F
SW 13 mph
Precip.
0%
0%
Night
77°F
SW 12 mph
Precip.
100%
100%
21.12
sun
sun
Day
79°F
SW 12 mph
Precip.
60%
60%
Night
77°F
SW 16 mph
Precip.
83%
83%
22.12
mon
mon
Day
77°F
W 17 mph
Precip.
72%
72%
Night
77°F
W 19 mph
Precip.
69%
69%
23.12
tue
tue
Day
79°F
W 19 mph
Precip.
75%
75%
Night
77°F
SW 26 mph
Precip.
100%
100%
24.12
wed
wed
Day
75°F
SW 22 mph
Precip.
29%
29%
Night
75°F
W 22 mph
Precip.
82%
82%
25.12
thu
thu
Day
75°F
W 19 mph
Precip.
57%
57%
Night
75°F
SW 19 mph
Precip.
100%
100%
26.12
fri
fri
Day
75°F
SW 21 mph
Precip.
64%
64%
Night
75°F
SW 19 mph
Precip.
66%
66%
27.12
sat
sat
Day
77°F
W 15 mph
Precip.
0%
0%
Night
75°F
W 14 mph
Precip.
0%
0%
28.12
sun
sun
Day
75°F
W 14 mph
Precip.
100%
100%
Night
75°F
W 17 mph
Precip.
100%
100%
29.12
mon
mon
Day
77°F
W 16 mph
Precip.
0%
0%
Night
77°F
W 21 mph
Precip.
0%
0%
30.12
tue
tue
Day
79°F
W 19 mph
Precip.
26%
26%
Night
77°F
W 21 mph
Precip.
56%
56%
sea water
temperature
temperature
| Cayo Guillermo |
monthly
weather
weather
| Cayo Guillermo |
current
weather
weather
| Cayo Guillermo |
7 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.
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
Cayo Guillermo on a weather map
Places in Cuba:
Name
°F
24 Hours Forecast
Cayo Guillermo
Local time: 00:36
December 18, thursday
0300
77°F
W
19 mph
19 mph
0600
77°F
W
19 mph
19 mph
0900
77°F
W
17 mph
17 mph
1200
79°F
W
14 mph
14 mph
1500
79°F
W
14 mph
14 mph
1800
79°F
W
15 mph
15 mph
2100
79°F
W
14 mph
14 mph
December 19, friday
0000
79°F
NW
11 mph
11 mph
