September weather forecast
Bragança, Brazil

The first month of the spring, September, is also a hot month in Bragança, Brazil, with an average temperature varying between 24°C (75.2°F) and 31.4°C (88.5°F).

Temperature

September's average high-temperature is a still hot 31.4°C (88.5°F), maintaining a close comparison with August's 31.2°C (88.2°F). The low-temperature average for Bragança during September stands at a warm 24°C (75.2°F).

Heat index

For most parts of September, the heat index is appraised at a blisteringly hot 41°C (105.8°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', reflects the feeling of heat when considering both air temperature and humidity. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
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. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.

Humidity

In September, the average relative humidity is 76%.

Rainfall

In September, the rain falls for 16.2 days. Throughout September, 25mm (0.98") of precipitation is accumulated. Throughout the year, there are 278.3 rainfall days, and 1531mm (60.28") of precipitation is accumulated.

Daylight

In September, the average length of the day in Bragança, Brazil, is 12h and 7min.
On the first day of September in Bragança, Brazil, sunrise is at 06:04 and sunset at 18:09. On the last day of the month, sunrise is at 05:53 and sunset at 18:00 -03.

Sunshine

The month with the most sunshine in Bragança is September, with an average of 8.9h of sunshine.

UV index

The months with the highest UV index in Bragança, Brazil, are May, July through October, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 7 during September translates into the following directions:
Resist extreme sun exposure. Guarding against solar damage is essential. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.