September weather forecast
Lábrea, Brazil

The first month of the spring, September, is still a very hot month in Lábrea, Brazil, with an average temperature fluctuating between 35.7°C (96.3°F) and 22.7°C (72.9°F).

Temperature

The beginning of September records an average high-temperature of a still fiery hot 35.7°C (96.3°F), marking a negligible difference from August's 35.9°C (96.6°F). Lábrea's September nights bring a significant temperature shift, averaging at a pleasant 22.7°C (72.9°F).

Heat index

For most parts of September, the heat index is computed to be a blazing hot 49°C (120.2°F). Be prepared: Heat cramps and heat exhaustion are probable. Continued activity may lead to heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. When heat gain surpasses the level the body can shed, body temperature begins to increase, and consequently, overheating and dehydration can occur, with varying severity.

Humidity

In September, the average relative humidity is 63%.

Rainfall

In Lábrea, Brazil, in September, it is raining for 13.1 days, with typically 25mm (0.98") of accumulated precipitation. In Lábrea, during the entire year, the rain falls for 232.3 days and collects up to 1127mm (44.37") of precipitation.

Daylight

In Lábrea, the average length of the day in September is 12h and 4min.
On the first day of September in Lábrea, sunrise is at 06:19 and sunset at 18:18. On the last day of the month, sunrise is at 06:03 and sunset at 18:13 -04.

Sunshine

The average sunshine in September is 9.2h.

UV index

The months with the highest UV index in Lábrea are June through November, with an average maximum UV index of 7. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, an average UV index of 7 transforms into the following instructions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.