January weather forecastDesterro, Brazil

Weather in January

January, the same as December, in Desterro, Brazil, is a hot summer month, with an average temperature ranging between max 33.1°C (91.6°F) and min 22.7°C (72.9°F).

Temperature

The arrival of January denotes a barely perceptible change in the average high-temperatures to a still tropical 33.1°C (91.6°F) from December's 33.8°C (92.8°F). During January nights, Desterro records an average temperature of 22.7°C (72.9°F).

Heat index

In January, the average heat index is estimated at a very hot 39°C (102.2°F). Adopt additional preventive measures, heat cramps and heat exhaustion are potential outcomes. Prolonged activity may trigger heatstroke.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', comes about by integrating the temperature readings with the humidity levels. One's perception of temperature is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. 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 especially vital to children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

The average relative humidity in January in Desterro is 59%.

Rainfall

In Desterro, in January, during 16.1 rainfall days, 54mm (2.13") of precipitation is typically accumulated. In Desterro, during the entire year, the rain falls for 126.4 days and collects up to 401mm (15.79") of precipitation.

Daylight

In Desterro, the average length of the day in January is 12h and 29min.
On the first day of January, sunrise is at 05:15 and sunset at 17:47. On the last day of the month, sunrise is at 05:28 and sunset at 17:54 -03.

Sunshine

In Desterro, the average sunshine in January is 9.1h.

UV index

The months with the highest UV index in Desterro are January through March, August through December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the average person.
Note: A typical high UV index of 7 in January suggests the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.