December weather forecast
Várzea Nova, Brazil

December, the first month of the summer in Várzea Nova, is still a hot month, with an average temperature ranging between max 30.2°C (86.4°F) and min 19.2°C (66.6°F).

Temperature

The beginning of December records an average high-temperature of a still hot 30.2°C (86.4°F), marking a negligible difference from November's tropical 30.2°C (86.4°F). Throughout December, Várzea Nova witnesses a nighttime temperature average of 19.2°C (66.6°F).

Heat index

December's average heat index is calculated to be a sweltering 36°C (96.8°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
One should consider that heat index numbers are for shaded settings and light wind. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. 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. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In Várzea Nova, Brazil, the average relative humidity in December is 71%.

Rainfall

In Várzea Nova, during December, the rain falls for 16.9 days and regularly aggregates up to 68mm (2.68") of precipitation. In Várzea Nova, during the entire year, the rain falls for 210.8 days and collects up to 521mm (20.51") of precipitation.

Daylight

The month with the longest days is December, with an average of 12h and 48min of daylight.
On the first day of December, sunrise is at 05:10 and sunset at 17:55. On the last day of the month, sunrise is at 05:23 and sunset at 18:10 -03.

Sunshine

In December, the average sunshine is 7.8h.

UV index

January through April, September through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for average individuals.
Note: During December, 6 as the daily maximum UV index converts into the following advice:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.