September weather forecastValle Grande, Cuba

Weather in September

The first month of the autumn, September, is still a hot month in Valle Grande, Cuba, with an average temperature ranging between min 24.1°C (75.4°F) and max 31.5°C (88.7°F).

Temperature

In the transition from August to September, Valle Grande reports an average high-temperature of a still tropical 31.5°C (88.7°F), indicating a close resemblance to the prior month. An average nighttime temperature of 24.1°C (75.4°F) is recorded in Valle Grande during September.

Heat index

For September, the heat index is evaluated at a scorching 43°C (109.4°F). Careful: Heat exhaustion and heat cramps are anticipated. With ongoing exertion, heatstroke becomes a possibility.
Heat index details are generally centered around shaded locations and a mild breeze. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', measures the perceived warmth when incorporating the humidity present in the air. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Being aware that direct sunlight can impact the felt heat might mean an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

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

Rainfall

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

Daylight

In Valle Grande, the average length of the day in September is 12h and 16min.
On the first day of the month, sunrise is at 07:12 and sunset at 19:46. On the last day of September, in Valle Grande, Cuba, sunrise is at 07:21 and sunset at 19:17 CDT.

Sunshine

The average sunshine in September in Valle Grande is 8.9h.

UV index

March through September, with an average maximum UV index of 7, are months with the highest UV index in Valle Grande, Cuba. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In September, the maximum UV index of 7 translates into these guidelines:
Shun overexposure. Protection from sun ravages is indispensable. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.