January weather forecast
João Dias, Brazil

January, like December, is another tropical summer month in João Dias, Brazil, with temperature in the range of an average high of 33.8°C (92.8°F) and an average low of 23.1°C (73.6°F).

Temperature

January is marked by an average high-temperature of a still tropical 33.8°C (92.8°F), almost identical to the preceding month. João Dias experiences a nighttime temperature average of 23.1°C (73.6°F) during January.

Heat index

The heat index value for January is appraised at a blistering 41°C (105.8°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. When exposed to the direct sun, the heat index may augment by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', gauges the sensation of temperature factoring in the air's moisture content. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. Increased relative humidity slows down evaporation, thereby decreasing the rate of heat removal from the body, culminating in a sensation of overheating. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

In January, the average relative humidity is 58%.

Rainfall

In January, the rain falls for 18.9 days. Throughout January, 69mm (2.72") of precipitation is accumulated. Throughout the year, in João Dias, Brazil, there are 148.4 rainfall days, and 508mm (20") of precipitation is accumulated.

Daylight

In João Dias, the average length of the day in January is 12h and 26min.
On the first day of January, sunrise is at 05:20 and sunset at 17:48. On the last day of the month, sunrise is at 05:33 and sunset at 17:56 -03.

Sunshine

The average sunshine in January is 9h.

UV index

January through March, August through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for average individuals.
Note: A maximum high UV index of 7 in January translates into the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.