January weather forecast
Osvaldo Cruz, Brazil

January, the same as December, is a moderately hot summer month in Osvaldo Cruz, Brazil, 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

The beginning of January records an average high-temperature of a still warm 29.2°C (84.6°F), marking a negligible difference from December's 29.6°C (85.3°F). Throughout January, the nighttime temperature averages to an agreeable 20.8°C (69.4°F).

Heat index

For most parts of January, the heat index is evaluated at a fiery hot 36°C (96.8°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. 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 'apparent temperature' or 'felt air temperature', gauges the sensation of temperature factoring in the air's moisture content. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young children are more at risk than adults since they tend to sweat less. Moreover, their large skin surface in proportion to their small bodies and the high heat production due to their activities contribute to their vulnerability.
Through perspiration, the body has a natural mechanism to eliminate excessive heat via sweat evaporation. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

In Osvaldo Cruz, the average relative humidity in January is 83%.

Rainfall

January is the month with the most rainfall in Osvaldo Cruz. Rain falls for 28.3 days and accumulates 203mm (7.99") of precipitation.

Daylight

In January, the average length of the day is 13h and 17min.
On the first day of January, sunrise is at 05:43 and sunset at 19:10. On the last day of the month, sunrise is at 06:04 and sunset at 19:09 -03.

Sunshine

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

UV index

January through March, July through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index of 6 during January leads to these instructions:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.