December weather forecastNobres, Brazil

Weather in December

December, the first month of the summer in Nobres, is also a hot month, with temperature in the range of an average low of 21.8°C (71.2°F) and an average high of 30°C (86°F).

Temperature

December's arrival shows an average high-temperature of a still tropical 30°C (86°F), hardly different from the previous month. During the nights in December, Nobres observes an average low-temperature of 21.8°C (71.2°F).

Heat index

During December, the heat index is evaluated at a fiery hot 39°C (102.2°F). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.
Be informed that the heat index values are oriented around shady conditions and gentle breezes. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', comes about by integrating the temperature readings with the humidity levels. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
The human body keeps its cool primarily through perspiration, as this process enables sweat to evaporate, taking away the excess heat. Under conditions of increased relative humidity, the evaporation rate lessens, causing the body to retain more heat than under less humid conditions. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.

Humidity

The average relative humidity in December is 83%.

Rainfall

In Nobres, in December, it is raining for 28.2 days, with typically 183mm (7.2") of accumulated precipitation. In Nobres, Brazil, during the entire year, the rain falls for 208 days and collects up to 1253mm (49.33") of precipitation.

Daylight

December has the longest days of the year in Nobres, with an average of 13h and 0min of daylight.
On the first day of December in Nobres, Brazil, sunrise is at 05:06 and sunset at 18:02. On the last day of the month, sunrise is at 05:19 and sunset at 18:18 -04.

Sunshine

In December, the average sunshine is 7.1h.

UV index

The months with the lowest UV index in Nobres are January through June, November and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: The UV index of 6 during December leads to these advisories:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.