Measurements:
°C
°F
CURRENT WEATHER
22:14
Cayo Guillermo
88°F
W 19 mph
Feels like: 98°F
Precip: 14%
World Resorts Cuba Cayo Guillermo Weather

7 Day Weather Forecast

07.12
sun
DAY
88°F
W 16 mph
precip
13%
NIGHT
88°F
W 20 mph
precip
12%
07.13
mon
DAY
88°F
W 17 mph
precip
12%
NIGHT
86°F
W 17 mph
precip
13%
07.14
tue
DAY
88°F
W 18 mph
precip
11%
NIGHT
86°F
W 19 mph
precip
12%
07.15
wed
DAY
88°F
W 17 mph
precip
18%
NIGHT
86°F
W 17 mph
precip
15%
07.16
thu
DAY
88°F
W 17 mph
precip
8%
NIGHT
86°F
W 19 mph
precip
11%
07.17
fri
DAY
88°F
W 18 mph
precip
9%
NIGHT
86°F
W 17 mph
precip
10%
07.18
sat
DAY
88°F
W 14 mph
precip
11%
NIGHT
86°F
W 17 mph
precip
16%

Cayo Guillermo Sea Water Temperature in July, °F

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Cayo Guillermo was 29.6°F. The maximum and minimum values were 28.8°F and 30.1°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 12 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:
October 7 days
May 6 days
August 6 days
The most windy months:
March 14 mph
November 14 mph
December 14 mph
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