September weather forecast
Iuiú, Brazil

September, the first month of the spring in Iuiú, is also a hot month, with an average temperature varying between 19.5°C (67.1°F) and 33.7°C (92.7°F).

Temperature

Iuiú's warmest month, September, generally records average temperatures ranging from a high of 33.7°C (92.7°F) to a low of 19.5°C (67.1°F).

Heat index

For September, the heat index is computed to be a very hot 36°C (96.8°F). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'felt air temperature', determines the feeling of heat when you account for the relative humidity. A person's impression of weather can be swayed by numerous aspects, among them metabolic variations, pregnancy, and activity levels. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are essentially critical for children. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When relative humidity is heightened, it slows the rate of evaporation, thereby decreasing the body's ability to shed heat and creating a sensation of overheating. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

The least humid month in Iuiú is September, with an average relative humidity of 44%.

Rainfall

In Iuiú, in September, it is raining for 2.8 days, with typically 6mm (0.24") of accumulated precipitation. In Iuiú, during the entire year, the rain falls for 145.7 days and collects up to 748mm (29.45") of precipitation.

Daylight

In September, the average length of the day in Iuiú is 12h and 2min.
On the first day of September in Iuiú, sunrise is at 05:58 and sunset at 17:49. On the last day of the month, sunrise is at 05:37 and sunset at 17:50 -03.

Sunshine

In Iuiú, the average sunshine in September is 9.7h.

UV index

The months with the highest UV index are August through October, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the average person.
Note: A maximum UV index of 7 in September translates into the following recommendations:
Guard against overexposure. Protection from sun-induced harm is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.