September weather forecast
Jaru, Brazil

The first month of the spring, September, is also a sweltering month in Jaru, Brazil, with temperature in the range of an average low of 23.8°C (74.8°F) and an average high of 36.4°C (97.5°F).

Temperature

The warmest time of the year is September, with temperatures averaging a high of 36.4°C (97.5°F) and a low of 23.8°C (74.8°F).

Heat index

Throughout September, the heat index is evaluated at a life-threatening hot 45°C (113°F). Keep alert: Heat cramps and heat exhaustion are probable. Heatstroke is a potential danger with continued physical activity.
Bear in mind that the heat index values are determined for shaded areas and light breezes. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In Jaru, the average relative humidity in September is 52%.

Rainfall

In Jaru, in September, it is raining for 10.9 days, with typically 27mm (1.06") of accumulated precipitation. In Jaru, during the entire year, the rain falls for 237.4 days and collects up to 1523mm (59.96") of precipitation.

Daylight

The average length of the day in September in Jaru, Brazil, is 12h and 3min.
On the first day of September, sunrise is at 06:12 and sunset at 18:07. On the last day of the month, sunrise is at 05:53 and sunset at 18:05 -04.

Sunshine

In September, the average sunshine is 9.8h.

UV index

The months with the highest UV index are July through October, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for the ordinary person.
Note: An average UV index of 7 in September transforms into this advice:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.