December weather forecast
Mogeiro, Brazil

December, the first month of the summer in Mogeiro, is still a hot month, with an average temperature fluctuating between 22.6°C (72.7°F) and 31°C (87.8°F).

Temperature

Transitioning into December, Mogeiro experiences an average high-temperature of a still tropical 31°C (87.8°F), marking a minor shift from the preceding month. During December, the temperature tends to dip to an average of 22.6°C (72.7°F) at night.

Heat index

Throughout December, the heat index is calculated to be a torrid 39°C (102.2°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are primarily vital for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

November and December, with an average relative humidity of 73%, are the least humid months.

Rainfall

In Mogeiro, in December, it is raining for 12 days, with typically 12mm (0.47") of accumulated precipitation. In Mogeiro, during the entire year, the rain falls for 196.4 days and collects up to 411mm (16.18") of precipitation.

Daylight

The month with the longest days is December, with an average of 12h and 30min of daylight.
On the first day of December, sunrise is at 04:55 and sunset at 17:26. On the last day of the month, sunrise is at 05:08 and sunset at 17:41 -03.

Sunshine

In Mogeiro, the average sunshine in December is 7h.

UV index

January through March, October and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: The daily high UV index of 7 in December translates into this advice:
Stay clear of intense sun exposure. Solar protection is of utmost significance. Limit direct sun exposure especially between 10 a.m. and 4 p.m., when UV radiation is at its peak. However, keep in mind that shade structures may not provide full sun protection. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.