September weather forecast
Barra do Garças, Brazil

September, the first month of the spring in Barra do Garças, is a sweltering month, with temperature in the range of an average high of 36.4°C (97.5°F) and an average low of 22.1°C (71.8°F).

Temperature

The month of September sees the highest average temperatures, reaching 36.4°C (97.5°F) at the peak and 22.1°C (71.8°F) at the low.

Heat index

September's heat index is evaluated at an extremely hot 40°C (104°F). Take additional safety steps, risk of heat exhaustion and heat cramps is notable. Prolonged activity may cause heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. Exposure to the direct sun might augment heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children usually face more risks than adults as their ability to sweat is less. Additionally, their larger skin surface in relation to their petite bodies and higher heat output due to their activities increases their vulnerability.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In September, the average relative humidity in Barra do Garças is 40%.

Rainfall

In September, in Barra do Garças, the rain falls for 6.9 days. Throughout September, 11mm (0.43") of precipitation is accumulated. Throughout the year, in Barra do Garças, there are 187.5 rainfall days, and 873mm (34.37") of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 1min.
On the first day of September in Barra do Garças, sunrise is at 05:34 and sunset at 17:23. On the last day of the month, sunrise is at 05:11 and sunset at 17:25 -04.

Sunshine

In Barra do Garças, Brazil, the average sunshine in September is 9.7h.

UV index

The months with the highest UV index are August and September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index of 7 during September leads to these instructions:
Refrain from overexposure. Fair-skinned individuals could burn in under 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.