December weather forecast
São Miguel do Guamá, Brazil

The first month of the summer, December, is still a hot month in São Miguel do Guamá, Brazil, with an average temperature varying between 22.6°C (72.7°F) and 32.5°C (90.5°F).

Temperature

The average high-temperature for December is a still hot 32.5°C (90.5°F), closely aligning with the temperature of the preceding month. In the month of December, São Miguel do Guamá experiences an average low-temperature of 22.6°C (72.7°F).

Heat index

The heat index for December is evaluated at a blazing hot 46°C (114.8°F). Watchful: Heat cramps and heat exhaustion are predicted. Continued exertion could lead to heatstroke.
Heat index details are generally centered around shaded locations and a mild breeze. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', quantifies the warmth felt when relative humidity is considered. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Direct exposure to sun rays can potentially augment the heat sensation, elevating the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
One of the main methods the human body employs to cool down is by perspiring, as this process allows sweat to evaporate and remove excess heat. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

The average relative humidity in December is 79%.

Rainfall

In São Miguel do Guamá, Brazil, in December, during 25.5 rainfall days, 118mm (4.65") of precipitation is typically accumulated. In São Miguel do Guamá, during the entire year, the rain falls for 299.8 days and collects up to 1384mm (54.49") of precipitation.

Daylight

With an average of 12h and 12min of daylight, December has the longest days of the year in São Miguel do Guamá, Brazil.
On the first day of the month, sunrise is at 05:52 and sunset at 18:05. On the last day of December, in São Miguel do Guamá, sunrise is at 06:06 and sunset at 18:19 -03.

Sunshine

In December, the average sunshine in São Miguel do Guamá is 6.7h.

UV index

January through June, August and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In December, a regular UV index of 6 translates into these guidelines:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.