December weather forecast
Lábrea, Brazil

December, the first month of the summer in Lábrea, is still a tropical month, with an average temperature ranging between min 23.1°C (73.6°F) and max 30.6°C (87.1°F).

Temperature

December's arrival brings an average high-temperature of a still tropical 30.6°C (87.1°F), demonstrating subtle variation from the preceding month. December nights observe an average temperature dip to a warm 23.1°C (73.6°F).

Heat index

The heat index for December is computed to be an extremely hot 42°C (107.6°F). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Be advised, the heat index considers values for conditions in shade and with a light breeze. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', quantifies the warmth felt when relative humidity is considered. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. With body temperatures on the rise, inefficient heat shedding can lead to dehydration and its associated complications.

Humidity

The average relative humidity in December is 87%.

Rainfall

In Lábrea, during December, the rain falls for 26.4 days and regularly aggregates up to 162mm (6.38") of precipitation. Throughout the year, in Lábrea, Brazil, there are 232.3 rainfall days, and 1127mm (44.37") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:52 and sunset at 18:23. On the last day of December, in Lábrea, sunrise is at 06:06 and sunset at 18:38 -04.

Sunshine

In December, the average sunshine is 6.8h.

UV index

January through May and December, with an average maximum UV index of 6, are months with the lowest UV index in Lábrea. A UV Index value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 6 suggests these recommendations:
Exercise precautions and adapt sun safety practices. Defence against skin and eye affliction is paramount. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. 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.