September weather forecast
Mesa Alta, Venezuela

The first month of the autumn, September, is still a tropical month in Mesa Alta, Venezuela, with an average temperature varying between 30.9°C (87.6°F) and 20.5°C (68.9°F).

Temperature

At the start of September, Mesa Alta's average high-temperature reaches a still tropical 30.9°C (87.6°F), subtly different from the preceding month. Throughout the month of September, the average temperature dips to a pleasant 20.5°C (68.9°F) at night.

Heat index

September's average heat index is evaluated at a fiery hot 36°C (96.8°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. Heat index values can rise by 15 Fahrenheit (8 Celsius) degrees when in direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. 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 are primarily vital for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The months with the lowest humidity are August and September, with an average relative humidity of 65%.

Rainfall

In Mesa Alta, in September, it is raining for 21.2 days, with typically 73mm (2.87") of accumulated precipitation. In Mesa Alta, during the entire year, the rain falls for 239.2 days and collects up to 849mm (33.43") of precipitation.

Daylight

In Mesa Alta, Venezuela, the average length of the day in September is 12h and 10min.
On the first day of September in Mesa Alta, sunrise is at 06:37 and sunset at 18:54. On the last day of the month, sunrise is at 06:34 and sunset at 18:37 -04.

Sunshine

September has the most sunshine of the year, with an average of 9.6h of sunshine.

UV index

January through June, September through December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 6 in September translates into this advice:
Use protective steps and abide by sun safety guidelines. Safeguarding against skin and eye harm is necessary. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.