December weather forecastIcatu, Brazil

Weather in December

The first month of the summer, December, is also a moderately hot month in Icatu, Brazil, with an average temperature fluctuating between 26.1°C (79°F) and 29.5°C (85.1°F).

Temperature

The start of December sees the average high-temperature at a still moderately hot 29.5°C (85.1°F), showing little difference from November's 29.9°C (85.8°F). Icatu notes an average temperature descent to a still warm 26.1°C (79°F) in December, a small shift from its daytime peak.

Heat index

The average heat index in December is evaluated at a very hot 36°C (96.8°F). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.
Realize that the values for the heat index are set for shaded places and light winds. A direct sunlight exposure may boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Evaporating sweat, thanks to perspiration, acts as a natural air conditioner for the human body. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In December, the average relative humidity is 78%.

Rainfall

In Icatu, during December, the rain falls for 23.9 days and regularly aggregates up to 189mm (7.44") of precipitation. Throughout the year, there are 280.5 rainfall days, and 2825mm (111.22") of precipitation is accumulated.

Daylight

December has the longest days of the year in Icatu, with an average of 12h and 18min of daylight.
On the first day of the month, sunrise is at 05:37 and sunset at 17:53. On the last day of December, sunrise is at 05:51 and sunset at 18:07 -03.

Sunshine

The average sunshine in December is 7.9h.

UV index

The months with the lowest UV index in Icatu, Brazil, are January through April and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 6 in December leads to these recommendations:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.