Measurements:
°C
°F
CURRENT WEATHER
01:21
Cayo Guillermo
72°F
S 12 mph
Feels like: 72°F
Precip: 87%
World Resorts Cuba Cayo Guillermo Weather

7 Day Weather Forecast

01.29
thu
DAY
74°F
W 16 mph
precip
0%
NIGHT
76°F
W 21 mph
precip
0%
01.30
fri
DAY
78°F
N 2 mph
precip
100%
NIGHT
78°F
SE 19 mph
precip
0%
01.31
sat
DAY
76°F
E 18 mph
precip
100%
NIGHT
72°F
SE 31 mph
precip
100%
02.01
sun
DAY
60°F
SE 25 mph
precip
100%
NIGHT
64°F
S 19 mph
precip
0%
02.02
mon
DAY
64°F
S 21 mph
precip
78%
NIGHT
68°F
SW 19 mph
precip
0%
02.03
tue
DAY
72°F
W 22 mph
precip
77%
NIGHT
74°F
W 22 mph
precip
100%
02.04
wed
DAY
76°F
W 17 mph
precip
65%
NIGHT
76°F
SW 20 mph
precip
100%

Cayo Guillermo Sea Water Temperature in January, °F

Select Year: 2026 2025 2024

The average sea surface temperature in January 2026 for Cayo Guillermo was 25.3°F. The maximum and minimum values were 24.1°F and 26.8°F respectively.

Cayo Guillermo on the Weather Map

Best Time to Visit Cayo Guillermo
The most sunny months:
April 13 days
March 12 days
May 11 days
The most warm months:
August 91.0 °F
July 90.5 °F
September 90.0 °F
Warmest sea temperature:
September 90.0 °F
August 89.9 °F
July 89.2 °F
The most cold months:
January 79.5 °F
February 80.7 °F
March 81.5 °F
The most rainy months:
May 7 days
October 7 days
August 6 days
The most windy months:
March 14 mph
November 14 mph
December 14 mph
more details