Cayo Guillermo
W 16 mph
Feels like: 96°F
Precip: 0%
World Resorts Cuba Cayo Guillermo Weather September Weather in Cayo Guillermo

Cayo Guillermo Weather: September

Average Day Temperature: 90.6°F
Average Night Temperature: 83.7°F
Sea Water Temperature: 89.5°F
Number of Sunny Days: 10 days
Sunshine Hours: 11.9 - 12.6 hours
Number of Rainy Days: 7 days
Precipitation Totals: 5.6 in

Air Temperature in September, °F

Select Year: 2021 2020 2019

The highest day temperature in September 2021 was 90°F. The lowest night temperature was 85°F. The average values for day and night temperatures during September were 87.6°F и 86.6°F respectivly.

Cayo Guillermo Water Sea Temperature in September, °F

Select Year: 2021 2020 2019

The average sea surface temperature in September 2021 for Cayo Guillermo was 90.2°F. The maximum and minimum values were 89.4°F and 92.0°F respectively.

Sunny, Cloudy and Gloomy days

Most of the days in September are cloudy but you can also expect sunny or gloomy days.

Precipitation Totals in September, in

Precipitation total in September for Cayo Guillermo is 5.6 in. It makes september one of the most rainy months of the year.

Wind Speed in September, mph

The average wind speed in September is 10.3 mph. It makes September the most windless month of the year for Cayo Guillermo.

Average Sunny Hours Per Day

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Cayo Guillermo in September is 7.2 hours.

Best Time to Visit Cayo Guillermo
The most sunny months:
April 13 days
July 12 days
August 12 days
The most warm months:
August 91.8 °F
July 91.1 °F
September 90.6 °F
Warmest sea temperature:
August 89.6 °F
September 89.5 °F
July 88.9 °F
The most cold months:
January 80.0 °F
February 81.2 °F
March 81.8 °F
The most rainy months:
October 9 days
May 8 days
August 7 days
The most windy months:
March 14 mph
November 14 mph
December 13 mph

Cayo Guillermo on the Weather Map

24 Hours Weather Forecast
Cayo Guillermo
Local time: 10:50
10 aug, wednesday
1200 88°F
16 mph
1500 88°F
16 mph
1800 86°F
17 mph
2100 86°F
21 mph
11 aug, thursday
0000 86°F
18 mph
0300 86°F
18 mph
0600 86°F
17 mph
0900 86°F
18 mph