December weather forecast
Anastácio, Brazil

December, the first month of the summer in Anastácio, is also a hot month, with an average temperature ranging between max 32.4°C (90.3°F) and min 22.1°C (71.8°F).

Temperature

The dawn of December sees an average high-temperature of a still tropical 32.4°C (90.3°F), subtly contrasting with November's 33.3°C (91.9°F). Anastácio records a consistent low-temperature of 22.1°C (71.8°F) during December nights.

Heat index

For most parts of December, the heat index is computed to be a blisteringly hot 44°C (111.2°F). Be careful: Heat exhaustion and heat cramps are probable. Heatstroke may result from extended activity.
It is emphasized that the heat index's values are meant for shaded zones with mild winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Young kids are often more at risk than adults as they tend to perspire less. Besides, their skin surface is larger relative to their small bodies, and their increased heat output from their active lifestyle compounds their risk.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.

Humidity

The average relative humidity in December in Anastácio is 76%.

Rainfall

December is the month with the most rainfall in Anastácio. Rain falls for 23.7 days and accumulates 145mm (5.71") of precipitation.

Daylight

The month with the longest days in Anastácio is December, with an average of 13h and 24min of daylight.
On the first day of December in Anastácio, Brazil, sunrise is at 04:53 and sunset at 18:11. On the last day of the month, sunrise is at 05:05 and sunset at 18:27 -04.

Sunshine

In December, the average sunshine in Anastácio is 9.3h.

UV index

In December, the average daily maximum UV index in Anastácio is 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 6 in December converts into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Between 10 a.m. and 4 p.m., the Sun's UV radiation is at its peak. Limit your exposure to direct sunlight during these hours. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.