December weather forecastAlhandra, Brazil

Weather in December

December, the first month of the summer in Alhandra, is still a tropical month, with an average temperature varying between 30.5°C (86.9°F) and 23.8°C (74.8°F).

Temperature

As Alhandra transitions into December, the average high-temperature stands at a still hot 30.5°C (86.9°F), offering little variation from the preceding month. During December, the temperature tends to dip to an average of 23.8°C (74.8°F) at night.

Heat index

In December, the heat index is appraised at a fiery hot 37°C (98.6°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. Direct sunlight exposure may cause a 15 Fahrenheit (8 Celsius) degrees rise in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', represents the fusion of temperature and moisture in the air to suggest how warm it feels. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

The months with the lowest humidity are November and December, with an average relative humidity of 72%.

Rainfall

In Alhandra, in December, during 15.1 rainfall days, 20mm (0.79") of precipitation is typically accumulated. Throughout the year, there are 200.7 rainfall days, and 437mm (17.2") of precipitation is accumulated.

Daylight

December has the longest days of the year in Alhandra, with an average of 12h and 30min of daylight.
On the first day of December in Alhandra, sunrise is at 04:53 and sunset at 17:24. On the last day of the month, sunrise is at 05:06 and sunset at 17:39 -03.

Sunshine

In December, the average sunshine in Alhandra is 7.4h.

UV index

The months with the highest UV index in Alhandra are January through April, October through December, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.
Note: The maximum UV index of 7 during December translates into these guidelines:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.