December weather forecast
Cianorte, Brazil

The first month of the summer, December, is also a moderately hot month in Cianorte, Brazil, with temperature in the range of an average low of 20.4°C (68.7°F) and an average high of 29.7°C (85.5°F).

Temperature

December, on average, is the warmest month, registering a high temperature of 29.7°C (85.5°F) and a low of 20.4°C (68.7°F).

Heat index

For December, the heat index is calculated to be a very hot 37°C (98.6°F). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Understanding the heat index involves considering values for shaded locales with light wind. Heat index values may surge by up to 15 Fahrenheit (8 Celsius) degrees in the presence of direct sunlight.
Note: The heat index, also known as 'feels like' or 'apparent temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Young individuals usually face more risks than adults due to their lower sweat production. Their large skin surface area relative to their tiny bodies and high heat production from their activities adds to their risk.
The body's self-cooling mechanism is rooted in perspiration, where evaporating sweat cools down excessive warmth. Heightened relative humidity interferes with the body's usual cooling mechanism by reducing evaporation, subsequently decreasing the body's cooling rate and increasing the sensation of heat. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.

Humidity

The average relative humidity in December is 80%.

Rainfall

In December, the rain falls for 24.7 days. Throughout December, 162mm (6.38") of precipitation is accumulated. Throughout the year, in Cianorte, there are 188.9 rainfall days, and 1183mm (46.57") of precipitation is accumulated.

Daylight

With an average of 13h and 36min of daylight, December has the longest days of the year in Cianorte.
On the first day of the month, sunrise is at 05:34 and sunset at 19:04. On the last day of December, in Cianorte, sunrise is at 05:46 and sunset at 19:20 -03.

Sunshine

In Cianorte, the average sunshine in December is 8.3h.

UV index

The months with the highest UV index in Cianorte are January through March, August through December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for the ordinary person.
Note: A daily maximum UV index of 6 in December translates into the following instructions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Stay sun-safe with clothing that is both closely woven and worn loosely.