September weather forecast and climate
Cayo Guillermo, Cuba

What is the temperature in September in Cayo Guillermo?

In Cayo Guillermo, Cuba, in September, the average high-temperature is 32°C (89.6°F), and the average low-temperature is 22°C (71.6°F).

How much does it rain in Cayo Guillermo in September?

In Cayo Guillermo, in September, during 15 rainfall days, typically, 160mm (6.3") of precipitation is accumulated.

What are the months with the warmest sea water in Cayo Guillermo?

Months with the warmest seawater are June through October, with an average sea temperature of 29°C (84.2°F). Water temperature between 25°C (77°F) and 29°C (84.2°F) is regarded as very warm and enjoyable by all. With these temperatures, water activities are pleasurable, without feeling uncomfortable for prolonged periods.

What is the sea water temperature in September in Cayo Guillermo?

In September, in Cayo Guillermo, the average sea temperature is 29°C (84.2°F). For any water activity, surface water temperatures between 25°C (77°F) and 29°C (84.2°F) are considered as excellent and extremely pleasant for lengthened periods.
Average temperature in September - Cayo Guillermo, Cuba
  • Average high temperature in September: 32°C

Warmest months (with the highest average high temperature) are July and August (33°C).
The month with the lowest average high temperature is January (27°C).

  • Average low temperature in September: 22°C

Months with the highest average low temperature are June, July and August (23°C).
Coldest months (with the lowest average low temperature) are January and February (17°C).

Average rainfall in September - Cayo Guillermo, Cuba
  • Average rainfall in September: 160mm

The wettest month (with the highest rainfall) is October (182mm).
The driest month (with the lowest rainfall) is December (39mm).

Average rainfall days in September - Cayo Guillermo, Cuba
  • Average rainfall days in September: 15 days

The month with the highest number of rainy days is October (16 days).
Months with the lowest number of rainy days are February and April (5 days).

Average sea temperature in September - Cayo Guillermo, Cuba
  • Average sea temperature in September: 29°C

Best months for swimming (with the highest average sea temperature) are June, July, August, September and October (29°C).
Coldest months (with the lowest average sea temperature) are January, February and March (25°C).

Average daylight in September / Average sunshine in September - Cayo Guillermo, Cuba
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 13.5h).
The month with shortest days is December (Average daylight: 10.8h).

  • Average sunshine in September: 7h

The month with most sunshine is April (Average sunshine: 9h).
Months with least sunshine are January, February, June, September, October, November and December (Average sunshine: 7).

Average UV index in September - Cayo Guillermo, Cuba
  • Average UV index in September: 11

Months with the highest UV index are April, May, June, July and August (UV index 12).
The month with the lowest UV index is December (UV index 6).

deutscheenglishespañolрусский中文