December weather forecastAnanindeua, Brazil

Weather in December

December, the first month of the summer in Ananindeua, is still a hot month, with an average temperature ranging between min 24°C (75.2°F) and max 31.7°C (89.1°F).

Temperature

With the onset of December, Ananindeua's average high-temperature clocks in at a still hot 31.7°C (89.1°F), showing a minor fluctuation from the previous month. Ananindeua experiences an average low-temperature of 24°C (75.2°F) in the month of December.

Heat index

December's average heat index is calculated to be an extremely hot 43°C (109.4°F). Note: Heat exhaustion and heat cramps are probable. Heatstroke can follow with prolonged activity.
Heat index determinations are made taking into account the shade and light air movements. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a single figure representing how weather conditions feel when combining temperature and humidity. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
As a reaction to high temperatures, the human body begins to perspire, using the evaporation of sweat to lower its temperature. Under high air temperature and high humidity (high heat index) conditions, the body's ability to perspire is compromised, increasing the sensation of heat. The body is at risk of dehydration and related complications when it fails to shed excessive heat.

Humidity

The average relative humidity in December in Ananindeua, Brazil, is 79%.

Rainfall

In Ananindeua, during December, the rain falls for 25.9 days and regularly aggregates up to 168mm (6.61") of precipitation. Throughout the year, there are 315 rainfall days, and 2079mm (81.85") of precipitation is accumulated.

Sea temperature

In Ananindeua, Brazil, the average seawater temperature in December is 28.4°C (83.1°F).
Note: Temperatures between 25°C (77°F) and 29°C (84.2°F) are ideal for swimming, diving, and similar water activities, ensuring pleasure and comfort for extended periods without feeling uneasy.

Daylight

December has the longest days of the year, with an average of 12h and 12min of daylight.
On the first day of December, sunrise is at 05:56 and sunset at 18:08. On the last day of the month, sunrise is at 06:10 and sunset at 18:22 -03.

Sunshine

In December, the average sunshine is 7.8h.

UV index

The months with the lowest UV index are January through May, November and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: A maximum daily UV index of 6 during December morphs into the following directions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is most intense, and remember that not all shade structures provide full protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Attention! UV radiation is ramped up when reflecting off sand and water surfaces.