Measurements:
°C
°F
CURRENT WEATHER
03:09
Cayo Guillermo
82°F
SW 5 mph
Feels like: 86°F
Precip: 17%
World Resorts Cuba Cayo Guillermo Weather

7 Day Weather Forecast

10.26
mon
DAY
84°F
W 5 mph
precip
20%
NIGHT
84°F
S 6 mph
precip
6%
10.27
tue
DAY
82°F
E 4 mph
precip
9%
NIGHT
82°F
N 7 mph
precip
8%
10.28
wed
DAY
84°F
NE 1 mph
precip
5%
NIGHT
84°F
NW 11 mph
precip
22%
10.29
thu
DAY
82°F
SW 3 mph
precip
6%
NIGHT
84°F
W 9 mph
precip
18%
10.30
fri
DAY
84°F
SW 4 mph
precip
7%
NIGHT
84°F
W 11 mph
precip
8%
10.31
sat
DAY
86°F
W 7 mph
precip
6%
NIGHT
86°F
W 11 mph
precip
18%
11.01
sun
DAY
86°F
W 9 mph
precip
24%
NIGHT
84°F
W 6 mph
precip
39%

Cayo Guillermo Sea Water Temperature in October, °F

Select Year: 2026 2025 2024

The average sea surface temperature in October 2026 for Cayo Guillermo was 29.5°F. The maximum and minimum values were 28.1°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 89.9 °F
Warmest sea temperature:
September 90.0 °F
August 90.0 °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 5 days
The most windy months:
March 14 mph
November 14 mph
December 14 mph
more details