January weather forecast
Jateí, Brazil

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

Temperature

Jateí's January average high-temperature settles at a still hot 30.4°C (86.7°F), showing a near match with the preceding month. During the month of January, the nighttime temperature in Jateí falls to an average of 21°C (69.8°F).

Heat index

January's heat index is calculated to be an extremely hot 40°C (104°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
For clarity, heat index numbers account for light winds and areas under shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', quantifies the warmth felt when relative humidity is considered. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are especially crucial for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.

Humidity

In Jateí, the average relative humidity in January is 82%.

Rainfall

In Jateí, Brazil, during January, the rain falls for 25.8 days and regularly aggregates up to 155mm (6.1") of precipitation. In Jateí, during the entire year, the rain falls for 192.3 days and collects up to 1062mm (41.81") of precipitation.

Daylight

The average length of the day in January in Jateí, Brazil, is 13h and 20min.
On the first day of the month, sunrise is at 04:56 and sunset at 18:25. On the last day of January, sunrise is at 05:16 and sunset at 18:24 -04.

Sunshine

The average sunshine in January in Jateí, Brazil, is 8.1h.

UV index

The months with the highest UV index in Jateí, Brazil, are January through April, July through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: The daily maximum UV index of 6 in January interprets into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.