December weather forecast
Lagoa do Sítio, Brazil

December, the first month of the summer in Lagoa do Sítio, is still a hot month, with an average temperature ranging between max 33.6°C (92.5°F) and min 23.7°C (74.7°F).

Temperature

Lagoa do Sítio's December average high-temperature settles at a hot 33.6°C (92.5°F), showing a near match with the preceding month. Lagoa do Sítio's temperature tends to fall to an average low of 23.7°C (74.7°F) during the nights of December.

Heat index

December's mean heat index is computed to be a blisteringly hot 40°C (104°F). Extra precautions are necessary, heat cramps and heat exhaustion are plausible outcomes. Extended activity could lead to heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', arises from combining readings of air temperature and relative moisture content. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly meaningful for babies and toddlers. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. In high relative humidity, the body's ability to evaporate heat is diminished, resulting in a heightened feeling of warmth. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

In Lagoa do Sítio, the average relative humidity in December is 56%.

Rainfall

In Lagoa do Sítio, in December, during 17.6 rainfall days, 78mm (3.07") of precipitation is typically accumulated. Throughout the year, there are 152.5 rainfall days, and 872mm (34.33") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 12h and 30min of daylight.
On the first day of the month, sunrise is at 05:21 and sunset at 17:49. On the last day of December, sunrise is at 05:34 and sunset at 18:04 -03.

Sunshine

In December, the average sunshine is 9h.

UV index

In December, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV rays for the average person.
Note: A daily maximum UV index of 7 in December translates into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.