January weather forecast
Iaçu, Brazil

January, like December, is another hot summer month in Iaçu, Brazil, with an average temperature varying between 31.8°C (89.2°F) and 20.4°C (68.7°F).

Temperature

The shift into January reveals an average high-temperature of a still tropical 31.8°C (89.2°F), closely mirroring December's climate. The nighttime temperature dips to an agreeable 20.4°C (68.7°F) on average during January.

Heat index

In January, the average heat index is computed to be an extremely hot 41°C (105.8°F). Implement additional cautionary measures, heat cramps and heat exhaustion could occur. Prolonged activity might induce heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a value derived by merging air temperature with the humidity to convey how the climate feels. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
Perspiring is the body's way of cooling down, particularly by allowing sweat to evaporate and take the heat with it. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

In Iaçu, the average relative humidity in January is 73%.

Rainfall

In Iaçu, in January, during 17.8 rainfall days, 59mm (2.32") of precipitation is typically accumulated. Throughout the year, there are 185.3 rainfall days, and 502mm (19.76") of precipitation is accumulated.

Daylight

In Iaçu, the average length of the day in January is 12h and 47min.
On the first day of January, sunrise is at 05:18 and sunset at 18:10. On the last day of the month, sunrise is at 05:34 and sunset at 18:14 -03.

Sunshine

The average sunshine in January is 8.6h.

UV index

The months with the highest UV index are January, February and October, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.
Note: In January, the maximum UV index of 7 transforms into these recommendations:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Employ a wide-brim hat for potent defense against up to 50% of UV rays.