January weather forecast
Volta Redonda, Brazil

January, the same as December, is a moderately hot summer month in Volta Redonda, Brazil, with an average temperature varying between 19.4°C (66.9°F) and 29.3°C (84.7°F).

Temperature

Volta Redonda's weather in January displays an average high-temperature of a still moderately hot 29.3°C (84.7°F), showing minor disparity from December's 28.7°C (83.7°F). An average low-temperature of 19.4°C (66.9°F) is recorded in the month of January.

Heat index

For most parts of January, the heat index is calculated to be a very hot 37°C (98.6°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. When body temperature rises due to excess heat gain beyond its removal capability, one might experience heat-related disorders.

Humidity

The average relative humidity in January is 84%.

Rainfall

The month with the most rainfall is January, when the rain falls for 23.8 days and typically aggregates up to 164mm (6.46") of precipitation.

Daylight

The average length of the day in January in Volta Redonda is 13h and 20min.
On the first day of January, sunrise is at 05:15 and sunset at 18:44. On the last day of the month, sunrise is at 05:35 and sunset at 18:43 -03.

Sunshine

In Volta Redonda, Brazil, the average sunshine in January is 8.1h.

UV index

The months with the highest UV index in Volta Redonda are January through March, August, October and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In January, an average UV index of 6 transforms into the following instructions:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Boost your sun resistance with garments that are densely woven yet spacious.