December weather forecast
Murajá, Brazil

The first month of the summer, December, is still a tropical month in Murajá, Brazil, with an average temperature varying between 30.5°C (86.9°F) and 24.9°C (76.8°F).

Temperature

December commences with an average high-temperature of a still tropical 30.5°C (86.9°F), showing little deviation from November's 31.4°C (88.5°F). In December, Murajá records an average nighttime temperature of 24.9°C (76.8°F).

Heat index

During December, the heat index is appraised at a torrid 39°C (102.2°F). More protective measures are required - heat exhaustion and heat cramps are likely. Heatstroke may follow lengthy activity.
Understand that the heat index values take into account shaded locations and mild winds. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
For the human body, perspiration is the go-to method to regulate temperature, using sweat's evaporation to dissipate warmth. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

The average relative humidity in December in Murajá is 78%.

Rainfall

In December, the rain falls for 24.7 days. Throughout December, 172mm (6.77") of precipitation is accumulated. In Murajá, during the entire year, the rain falls for 315.6 days and collects up to 2313mm (91.06") of precipitation.

Daylight

December has the longest days of the year in Murajá, with an average of 12h and 12min of daylight.
On the first day of December, sunrise is at 05:56 and sunset at 18:05. On the last day of the month, sunrise is at 06:10 and sunset at 18:20 -03.

Sunshine

In Murajá, the average sunshine in December is 8.3h.

UV index

January, June through December, with an average maximum UV index of 7, are months with the highest UV index in Murajá. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 7 in December interprets into the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.