December weather forecast
Sítio do Mato, Brazil

December, the first month of the summer in Sítio do Mato, is still a hot month, with an average temperature varying between 20.3°C (68.5°F) and 31.1°C (88°F).

Temperature

As November transitions into December, Sítio do Mato records an average high-temperature of a still hot 31.1°C (88°F), showing a gentle shift from the preceding month. During the month of December, an average temperature of 20.3°C (68.5°F) is noted during the nights in Sítio do Mato.

Heat index

December's heat index is calculated to be a torrid 39°C (102.2°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. Exposing to direct sunshine may enhance heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', is derived by integrating air temperature with the existing relative humidity to express the perceived warmth. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are of high significance for children. Young ones often ignore the need to take a break and drink fluids. Thirst is a late-stage symptom of dehydration - hence, maintaining hydration, particularly during extended physical activities, is crucial.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

In Sítio do Mato, Brazil, the average relative humidity in December is 73%.

Rainfall

In Sítio do Mato, during December, the rain falls for 17.6 days and regularly aggregates up to 106mm (4.17") of precipitation. In Sítio do Mato, during the entire year, the rain falls for 131.5 days and collects up to 692mm (27.24") of precipitation.

Daylight

With an average of 12h and 54min of daylight, December has the longest days of the year.
On the first day of December, sunrise is at 05:17 and sunset at 18:08. On the last day of the month, sunrise is at 05:30 and sunset at 18:23 -03.

Sunshine

In Sítio do Mato, the average sunshine in December is 10.4h.

UV index

January, March through July, November and December, with an average maximum UV index of 6, are months with the lowest UV index in Sítio do Mato. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the average person.
Note: The UV index of 6 during December translates into the following guidance:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.