January weather forecast
Rio Brilhante, Brazil

January, the same as December, in Rio Brilhante, Brazil, is a hot summer month, with an average temperature ranging between max 30.4°C (86.7°F) and min 21°C (69.8°F).

Temperature

The advent of January brings an average high-temperature of a still tropical 30.4°C (86.7°F), exhibiting minor difference from the previous month. During January nights, Rio Brilhante records an average temperature of 21°C (69.8°F).

Heat index

January's mean heat index is calculated to be a blisteringly hot 40°C (104°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
Realize that the values for the heat index are set for shaded places and light winds. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', ties air temperature with relative humidity to produce the perceived temperature sensation. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. 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 primarily vital for children. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
Perspiring is how the human body naturally cools down, as sweat's evaporation takes away excess heat. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

The average relative humidity in January in Rio Brilhante is 82%.

Rainfall

In Rio Brilhante, in January, it is raining for 25.8 days, with typically 155mm (6.1") of accumulated precipitation. Throughout the year, in Rio Brilhante, Brazil, there are 192.3 rainfall days, and 1062mm (41.81") of precipitation is accumulated.

Daylight

In January, the average length of the day in Rio Brilhante, Brazil, is 13h and 17min.
On the first day of the month, sunrise is at 04:58 and sunset at 18:24. On the last day of January, in Rio Brilhante, sunrise is at 05:18 and sunset at 18:24 -04.

Sunshine

The average sunshine in January is 8.1h.

UV index

January through April, July through December, with an average maximum UV index of 6, are months with the highest UV index in Rio Brilhante. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index, 6 during January, leads to the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.