September weather forecast
Brasilândia do Tocantins, Brazil

September, the first month of the spring in Brasilândia do Tocantins, is also a sweltering month, with an average temperature fluctuating between 23.8°C (74.8°F) and 37.2°C (99°F).

Temperature

Temperature readings reach their annual highs in September, averaging 37.2°C (99°F) and a minimum average of 23.8°C (74.8°F).

Heat index

September's mean heat index is calculated to be an extremely hot 42°C (107.6°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Understanding the heat index involves considering values for shaded locales with light wind. The heat index may experience an enhancement of 15 Fahrenheit (8 Celsius) degrees under direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

August and September, with an average relative humidity of 40%, are the least humid months.

Rainfall

In Brasilândia do Tocantins, in September, it is raining for 4.6 days, with typically 8mm (0.31") of accumulated precipitation. Throughout the year, there are 213.3 rainfall days, and 1154mm (45.43") of precipitation is accumulated.

Daylight

In September, the average length of the day in Brasilândia do Tocantins is 12h and 4min.
On the first day of September in Brasilândia do Tocantins, sunrise is at 06:14 and sunset at 18:12. On the last day of the month, sunrise is at 05:58 and sunset at 18:09 -03.

Sunshine

In September, the average sunshine in Brasilândia do Tocantins is 9.6h.

UV index

The months with the highest UV index in Brasilândia do Tocantins are May through September and November, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for average individuals.
Note: In September, the maximum UV index of 7 suggests this advice:
Dodge overexposure. Fair-skinned people can get singed in less than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.