September weather forecast
Itapiúna, Brazil

The first month of the spring, September, is also a hot month in Itapiúna, Brazil, with an average temperature varying between 21.2°C (70.2°F) and 33.5°C (92.3°F).

Temperature

The transition from August to September sees average high-temperatures adjusting to a still hot 33.5°C (92.3°F), from a not significantly different 32.8°C (91°F). Itapiúna's nights during September are marked by a pronounced drop from daytime temperatures, experiencing an average low of 21.2°C (70.2°F).

Heat index

The average heat index in September is evaluated at a blisteringly hot 41°C (105.8°F). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Records show heat index calculations are tailored for shaded regions and mild winds. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', gauges the sensation of temperature factoring in the air's moisture content. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
The physiological way the human body responds to excessive heat is by inducing perspiration, using sweat evaporation as a cooling mechanism. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

September and October, with an average relative humidity of 61%, are the least humid months in Itapiúna.

Rainfall

The months with the least rainfall are September and October Rain falls for 4.1 days and accumulates 3mm (0.12") of rain.

Daylight

In Itapiúna, the average length of the day in September is 12h and 5min.
On the first day of the month, sunrise is at 05:34 and sunset at 17:36. On the last day of September, sunrise is at 05:21 and sunset at 17:29 -03.

Sunshine

In September, the average sunshine in Itapiúna is 9.3h.

UV index

August through December, with an average maximum UV index of 7, are months with the highest UV index in Itapiúna. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 7 during September leads to these instructions:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.