January weather forecast
Retirolândia, Brazil

January, like December, is another tropical summer month in Retirolândia, Brazil, with an average temperature fluctuating between 21.1°C (70°F) and 31.8°C (89.2°F).

Temperature

In January, Retirolândia experiences a minor shift in meteorological conditions with average high-temperatures marked at a still hot 31.8°C (89.2°F), closely mirroring the climate in December. January sees the temperature falling to a mean low of 21.1°C (70°F).

Heat index

January's average heat index is calculated to be a blisteringly hot 40°C (104°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. A rise of up to 15 Fahrenheit (8 Celsius) degrees in the heat index could result from direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'real feel', provides an understanding of perceived warmth by combining temperature and relative humidity. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. 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 particularly meaningful for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

In Retirolândia, the average relative humidity in January is 70%.

Rainfall

In Retirolândia, in January, during 15 rainfall days, 37mm (1.46") of precipitation is typically accumulated. Throughout the year, there are 175.1 rainfall days, and 358mm (14.09") of precipitation is accumulated.

Daylight

In January, the average length of the day is 12h and 43min.
On the first day of the month, sunrise is at 05:17 and sunset at 18:04. On the last day of January, sunrise is at 05:32 and sunset at 18:09 -03.

Sunshine

With an average of 9.2h of sunshine, January has the most sunshine of the year.

UV index

January, February, November and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: In January, the UV index of 7 transforms into the following advice:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. Employ a wide-brim hat for potent defense against up to 50% of UV rays.