December weather forecast
Colômbia, Brazil

December, the first month of the summer in Colômbia, is also a moderately hot month, with temperature in the range of an average high of 29.3°C (84.7°F) and an average low of 20.7°C (69.3°F).

Temperature

The initiation of December sees an average high-temperature of a still moderately hot 29.3°C (84.7°F), showing minor variations from the previous month. Colômbia witnesses an average low-temperature of 20.7°C (69.3°F) throughout the month of December.

Heat index

The heat index in December is evaluated at a torrid 36°C (96.8°F). Take greater precautions, heat exhaustion and heat cramps may be expected. Heatstroke could result from lengthy activity.
Realize that the values for the heat index are set for shaded places and light winds. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for children. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In December, the average relative humidity is 83%.

Rainfall

In Colômbia, in December, during 28.3 rainfall days, 196mm (7.72") of precipitation is typically accumulated. In Colômbia, during the entire year, the rain falls for 210.2 days and collects up to 1335mm (52.56") of precipitation.

Daylight

December has the longest days of the year in Colômbia, Brazil, with an average of 13h and 18min of daylight.
On the first day of December in Colômbia, sunrise is at 05:25 and sunset at 18:42. On the last day of the month, sunrise is at 05:38 and sunset at 18:57 -03.

Sunshine

In Colômbia, the average sunshine in December is 7.6h.

UV index

The average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: During December, 6 as the daily maximum UV index converts into the following advice:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.