January weather forecast
Piacatu, Brazil

January, like December, in Piacatu, Brazil, is a moderately hot summer month, with temperature in the range of an average low of 20.8°C (69.4°F) and an average high of 29.2°C (84.6°F).

Temperature

January registers an average high-temperature of a still warm 29.2°C (84.6°F), slightly varied from December's 29.6°C (85.3°F). Piacatu, during the nights of January, experiences an average temperature drop to an agreeable 20.8°C (69.4°F).

Heat index

In January, the average heat index is estimated at a sweltering 36°C (96.8°F). Adopt enhanced safety measures, heat exhaustion and heat cramps could occur. Continuous activity may induce heatstroke.
Heat index data is primarily for areas with shade and subjected to light winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is found by incorporating humidity levels into the air temperature measurement. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. It is essential to realize that direct sunlight can escalate the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

The average relative humidity in January in Piacatu is 83%.

Rainfall

The month with the most rainfall is January, when the rain falls for 28.3 days and typically aggregates up to 203mm (7.99") of precipitation.

Daylight

The average length of the day in January in Piacatu is 13h and 16min.
On the first day of January, sunrise is at 05:43 and sunset at 19:08. On the last day of the month, sunrise is at 06:03 and sunset at 19:08 -03.

Sunshine

January has the least sunshine of the year in Piacatu, with an average of 7h of sunshine.

UV index

The months with the highest UV index in Piacatu are January through March, July through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: In January, a daily maximum UV index of 6 leads to the following instructions:
Resist overexposure. Safeguarding from solar damage is indispensable. 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 hat with a broad brim is indispensable, filtering out up to half of UV rays.