Measurements:
°C
°F
CURRENT WEATHER
23:37
Cayo Guillermo
84°F
NW 19 mph
Feels like: 92°F
Precip: 0%
World Resorts Cuba Cayo Guillermo Weather

7 Day Weather Forecast

05.10
sun
DAY
88°F
W 14 mph
precip
0%
NIGHT
84°F
NW 19 mph
precip
0%
05.11
mon
DAY
86°F
W 15 mph
precip
0%
NIGHT
84°F
W 16 mph
precip
100%
05.12
tue
DAY
86°F
NW 9 mph
precip
100%
NIGHT
84°F
NW 5 mph
precip
100%
05.13
wed
DAY
84°F
W 4 mph
precip
0%
NIGHT
86°F
W 6 mph
precip
65%
05.14
thu
DAY
84°F
SE 1 mph
precip
78%
NIGHT
80°F
E 4 mph
precip
100%
05.15
fri
DAY
84°F
NW 2 mph
precip
100%
NIGHT
84°F
NW 11 mph
precip
100%
05.16
sat
DAY
86°F
W 16 mph
precip
0%
NIGHT
86°F
W 18 mph
precip
0%

Cayo Guillermo Sea Water Temperature in May, °F

Select Year: 2025 2024 2023

The average sea surface temperature in May 2025 for Cayo Guillermo was 27.9°F. The maximum and minimum values were 26.0°F and 29.1°F respectively.

Cayo Guillermo on the Weather Map

Best Time to Visit Cayo Guillermo
The most sunny months:
April 14 days
March 13 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 80.4 °F
March 81.4 °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
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