September weather forecast
Itainópolis, Brazil

The first month of the spring, September, is a sweltering month in Itainópolis, Brazil, with an average temperature varying between 35.5°C (95.9°F) and 21.8°C (71.2°F).

Temperature

The beginning of September records an average high-temperature of a very hot 35.5°C (95.9°F), almost echoing the conditions of the previous month. September nights report a substantial dip from daytime highs to an average of 21.8°C (71.2°F).

Heat index

In September, the average heat index is calculated to be a very hot 39°C (102.2°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Note that heat index values are valued for light wind and location in the shade. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Juveniles often do not understand the need to recuperate and rehydrate. Thirst is a delayed symptom of dehydration - hence, it is vital to maintain hydration, particularly during ongoing physical activities.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.

Humidity

September is the least humid month, with an average relative humidity of 42%.

Rainfall

Months with rainfall are January through July, September through December. September is the first month it rains. Throughout September, in the average 1.5 rainfall days, it receives 2mm (0.08") of precipitation. Throughout the year, there are 152.5 rainfall days, and 872mm (34.33") of precipitation is accumulated.

Daylight

The average length of the day in September is 12h and 4min.
On the first day of the month, sunrise is at 05:46 and sunset at 17:44. On the last day of September, sunrise is at 05:30 and sunset at 17:40 -03.

Sunshine

August and September, with an average of 9.9h of sunshine, are months with the most sunshine.

UV index

September and October, with an average maximum UV index of 8, are months with the highest UV index. A UV Index reading of 8 to 10 represents a very high health risk from exposure to the Sun's UV radiation for average individuals.
Note: In September, the maximum UV index of 8 suggests these recommendations:
Never neglect to protect yourself. Eyes and skin can suffer swift damage. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.