December weather forecast
Andorinha, Brazil

The first month of the summer, December, is still a hot month in Andorinha, Brazil, with an average temperature varying between 20.8°C (69.4°F) and 32.3°C (90.1°F).

Temperature

The transition from November to December sees an average high-temperature of a still hot 32.3°C (90.1°F), indicating a minor variance from the prior month. Andorinha's nighttime temperature during December is consistently averaged at an agreeable 20.8°C (69.4°F).

Heat index

In December, the heat index is estimated at a sweltering 39°C (102.2°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.
It is essential to grasp that the heat index's numbers are for shade and light wind settings. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is calculated by taking the relative humidity value for a specific location and factoring it into the air temperature reading. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Consider that direct sun exposure can intensify the felt heat, adding potentially 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are extremely significant for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Sweat evaporation, driven by perspiration, is the method the human body uses to rid itself of excessive warmth. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Rising body temperatures resulting from an imbalance in heat absorption can lead to potential thermal issues.

Humidity

In December, the average relative humidity is 65%.

Rainfall

In Andorinha, in December, it is raining for 13.3 days, with typically 48mm (1.89") of accumulated precipitation. In Andorinha, during the entire year, the rain falls for 146.7 days and collects up to 349mm (13.74") of precipitation.

Daylight

The month with the longest days is December, with an average of 12h and 42min of daylight.
On the first day of the month, sunrise is at 05:07 and sunset at 17:49. On the last day of December, sunrise is at 05:21 and sunset at 18:04 -03.

Sunshine

In Andorinha, the average sunshine in December is 8.1h.

UV index

The average daily maximum UV index in December is 6. A UV Index value of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum daily UV index of 6 during December morphs into the following directions:
Take precautions against overexposure. Protection against sun damage is needed. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.