December weather forecast
Nova Rosalândia, Brazil

The first month of the summer, December, is still a tropical month in Nova Rosalândia, Brazil, with an average temperature ranging between min 22.2°C (72°F) and max 31.3°C (88.3°F).

Temperature

The initiation of December records an average high-temperature of a still tropical 31.3°C (88.3°F), displaying a near consistency with the previous month. Throughout the month of December, Nova Rosalândia witnesses an average temperature of 22.2°C (72°F).

Heat index

The heat index value for December is evaluated at an extremely hot 41°C (105.8°F). Incorporate additional safety actions, heat cramps and heat exhaustion are possible. Long-term activity may induce heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', provides an understanding of perceived warmth by combining temperature and relative humidity. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Should you be directly under the sun, anticipate a possible increase in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it's vital to remain hydrated, particularly during prolonged physical activities.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Overheating risks increase with rising body temperatures, especially if heat release isn't efficient.

Humidity

In Nova Rosalândia, the average relative humidity in December is 78%.

Rainfall

In Nova Rosalândia, in December, it is raining for 25.8 days, with typically 129mm (5.08") of accumulated precipitation. Throughout the year, there are 198 rainfall days, and 907mm (35.71") of precipitation is accumulated.

Daylight

The month with the longest days is December, with an average of 12h and 42min of daylight.
On the first day of December, sunrise is at 05:43 and sunset at 18:25. On the last day of the month, sunrise is at 05:56 and sunset at 18:40 -03.

Sunshine

In Nova Rosalândia, the average sunshine in December is 9.3h.

UV index

February through May and December, with an average maximum UV index of 6, are months with the lowest UV index in Nova Rosalândia. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In December, a regular UV index of 6 translates into these guidelines:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. Always opt for UVA and UVB-resistant sunglasses on radiant days.