Cayo Guillermo
W 17 mph
Feels like: 90°F
Precip: 0%
World Resorts Cuba Cayo Guillermo Weather September Weather in Cayo Guillermo

Cayo Guillermo Weather: September

Average Day Temperature: 90.2°F
Average Night Temperature: 84.2°F
Sea Water Temperature: 89.8°F
Number of Sunny Days: 11 days
Sunshine Hours: 11.9 - 12.6 hours
Number of Rainy Days: 6 days
Precipitation Totals: 4.7 in

Air Temperature in September, °F

Select Year: 2023 2022 2021

The highest day temperature in September 2023 was 90°F. The lowest night temperature was 85°F. The average values for day and night temperatures during September were 88.6°F и 87.3°F respectivly.

Cayo Guillermo Water Sea Temperature in September, °F

Select Year: 2023 2022 2021

The average sea surface temperature in September 2023 for Cayo Guillermo was 91.7°F. The maximum and minimum values were 91.0°F and 92.8°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 4.7 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 10.5 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 7.4 hours.

Best Time to Visit Cayo Guillermo
The most sunny months:
April 13 days
July 12 days
March 12 days
The most warm months:
August 91.3 °F
July 91.0 °F
September 90.2 °F
Warmest sea temperature:
September 89.8 °F
August 89.7 °F
July 89.1 °F
The most cold months:
January 79.8 °F
February 81.1 °F
March 81.7 °F
The most rainy months:
May 8 days
October 8 days
June 6 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: 20:40
02 dec, saturday
2100 82°F
17 mph
03 dec, sunday
0000 82°F
15 mph
0300 82°F
12 mph
0600 82°F
13 mph
0900 82°F
11 mph
1200 84°F
12 mph
1500 84°F
14 mph
1800 82°F
14 mph