September weather forecast
Guanabacoa, Cuba

September, the first month of the autumn in Guanabacoa, is still a tropical month, with an average temperature fluctuating between 24.1°C (75.4°F) and 31.5°C (88.7°F).

Temperature

September records an average high-temperature of a still hot 31.5°C (88.7°F), indicating a minor variation from the preceding month. September nights experience a consistent temperature drop to a warm 24.1°C (75.4°F).

Heat index

The average heat index in September is evaluated at a blisteringly hot 43°C (109.4°F). Keep on guard: Heat exhaustion and heat cramps are probable. Heatstroke is a possible danger with ongoing physical activity.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Youngsters generally face more threats than adults given their lesser ability to sweat. Coupled with their larger skin surface relative to their small bodies and higher heat production due to their activities, they are more endangered.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.

Humidity

September and October, with an average relative humidity of 80%, are the most humid months.

Rainfall

In Guanabacoa, in September, during 25.2 rainfall days, 105mm (4.13") of precipitation is typically accumulated. In Guanabacoa, during the entire year, the rain falls for 204.8 days and collects up to 802mm (31.57") of precipitation.

Daylight

The average length of the day in September is 12h and 16min.
On the first day of the month, sunrise is at 07:11 and sunset at 19:46. On the last day of September, sunrise is at 07:20 and sunset at 19:16 CDT.

Sunshine

In September, the average sunshine is 8.9h.

UV index

March through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 7 in September interprets into the following recommendations:
Stay clear of intense sun exposure. Solar protection is of utmost significance. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Experience reduced UV exposure by about half when donning a wide-brim hat.