December weather forecastMuçum, Brazil

Weather in December

December, the first month of the summer in Muçum, is also a moderately hot month, with an average temperature varying between 29.2°C (84.6°F) and 17.5°C (63.5°F).

Temperature

The onset of December brings an average high-temperature of a still warm 29.2°C (84.6°F), nearly matching the November temperature. December witnesses an average low-temperature hovering around a comfortable 17.5°C (63.5°F).

Heat index

The heat index in December is calculated to be a very hot 35°C (95°F). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Records show heat index calculations are tailored for shaded regions and mild winds. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Keep in mind that direct sunshine exposure can amplify the weather's effects, possibly increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. When the level of relative humidity is elevated, evaporation diminishes, causing more warmth to be retained in the body than in dry air. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

With an average relative humidity of 77%, December is the least humid month in Muçum.

Rainfall

In Muçum, in December, it is raining for 16.5 days, with typically 70mm (2.76") of accumulated precipitation. In Muçum, during the entire year, the rain falls for 169.4 days and collects up to 977mm (38.46") of precipitation.

Daylight

December has the longest days of the year, with an average of 14h and 0min of daylight.
On the first day of the month, sunrise is at 05:20 and sunset at 19:13. On the last day of December, sunrise is at 05:31 and sunset at 19:30 -03.

Sunshine

The month with the most sunshine is December, with an average of 8.5h of sunshine.

UV index

January through March, November and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: The maximum UV index of 6 during December translates into these guidelines:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Tightly woven clothing, when worn loosely, shields effectively against the Sun.