January weather forecast
Rio do Meio, Brazil

January, the same as December, is another warm summer month in Rio do Meio, Brazil, with an average temperature fluctuating between 18.8°C (65.8°F) and 29.3°C (84.7°F).

Temperature

Rio do Meio sees the arrival of January with an average high-temperature of a still moderately hot 29.3°C (84.7°F), indicating a subtle variation from December. Throughout January, Rio do Meio experiences a low-temperature average of 18.8°C (65.8°F).

Heat index

For January, the heat index is evaluated at a sweltering 36°C (96.8°F). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', comes about by integrating the temperature readings with the humidity levels. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The average relative humidity in January is 83%.

Rainfall

In Rio do Meio, during January, the rain falls for 15.9 days and regularly aggregates up to 42mm (1.65") of precipitation. In Rio do Meio, during the entire year, the rain falls for 209.2 days and collects up to 561mm (22.09") of precipitation.

Daylight

The average length of the day in January in Rio do Meio is 12h and 54min.
On the first day of January, sunrise is at 05:13 and sunset at 18:13. On the last day of the month, sunrise is at 05:30 and sunset at 18:16 -03.

Sunshine

In Rio do Meio, the average sunshine in January is 8.2h.

UV index

The months with the highest UV index are January through April, August through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: A maximum high UV index of 6 in January translates into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. 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. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.