December weather forecastCaseara, Brazil

Weather in December

December, the first month of the summer in Caseara, is still a tropical month, with an average temperature fluctuating between 22.2°C (72°F) and 31.6°C (88.9°F).

Temperature

The transition into December is marked with an average high-temperature of a still hot 31.6°C (88.9°F), showing an insignificant shift from November's 33°C (91.4°F). Caseara, during the month of December, experiences an average low-temperature of 22.2°C (72°F).

Heat index

For most parts of December, the heat index is calculated to be a blisteringly hot 43°C (109.4°F). Be cautious: Heat exhaustion along with heat cramps are predicted. Heatstroke is a possible consequence of continuous physical effort.
Note that heat index values are valued for light wind and location in the shade. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. 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. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Overheating dangers loom when the body's heat release mechanisms are overshadowed by excessive gain.

Humidity

The average relative humidity in December in Caseara, Brazil, is 79%.

Rainfall

In Caseara, during December, the rain falls for 26.8 days and regularly aggregates up to 143mm (5.63") of precipitation. In Caseara, during the entire year, the rain falls for 213.3 days and collects up to 1154mm (45.43") of precipitation.

Daylight

December has the longest days of the year in Caseara, with an average of 12h and 42min of daylight.
On the first day of December, sunrise is at 05:50 and sunset at 18:27. On the last day of the month, sunrise is at 06:03 and sunset at 18:42 -03.

Sunshine

In Caseara, the average sunshine in December is 8.8h.

UV index

January through April, October and December, with an average maximum UV index of 6, are months with the lowest UV index in Caseara. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: An average UV index of 6 in December transforms into this advice:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Between 10 a.m. and 4 p.m., UV radiation is strongest. Make an effort to avoid direct sunlight during this time, remembering that shade structures may not provide full sun protection. During bright days, sunglasses that offer UVA and UVB defense are recommended.