January weather forecast
Cosme Velho, Brazil

January, the same as December, is a moderately hot summer month in Cosme Velho, Brazil, with an average temperature fluctuating between 23.7°C (74.7°F) and 29.2°C (84.6°F).

Temperature

Cosme Velho marks the onset of January with an average high-temperature of a still warm 29.2°C (84.6°F), a subtle shift from December's 28.2°C (82.8°F). In Cosme Velho, January nights witness a steady temperature drop to a still moderately hot 23.7°C (74.7°F).

Heat index

January's mean heat index is appraised at a sweltering 35°C (95°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
Given the heat index, its values are aligned with shaded sites and gentle winds. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. Direct sun rays can make one feel hotter, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Humans rely on perspiration as a cooling mechanism, wherein the evaporating sweat counteracts excessive warmth. 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 January is 79%.

Rainfall

In Cosme Velho, during January, the rain falls for 19.8 days and regularly aggregates up to 102mm (4.02") of precipitation. Throughout the year, in Cosme Velho, Brazil, there are 192.5 rainfall days, and 812mm (31.97") of precipitation is accumulated.

Daylight

The average length of the day in January in Cosme Velho is 13h and 22min.
On the first day of January, sunrise is at 05:10 and sunset at 18:41. On the last day of the month, sunrise is at 05:31 and sunset at 18:40 -03.

Sunshine

The average sunshine in January in Cosme Velho, Brazil, is 8.5h.

UV index

January is the month with the highest UV index in Cosme Velho, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV rays for average individuals.
Note: In January, the UV index of 7 transforms into the following advice:
Ward off overexposure. Defence against solar harm is crucial. 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. To cut down UV radiation exposure by about half, sport a wide-brim hat.