December weather forecast
Santana do Ipanema, Brazil

The first month of the summer, December, is still a tropical month in Santana do Ipanema, Brazil, with temperature in the range of an average high of 33.8°C (92.8°F) and an average low of 22.3°C (72.1°F).

Temperature

The months of March and December bring the highest temperatures, averaging a high of 33.8°C (92.8°F).

Heat index

December's heat index is evaluated at a blisteringly hot 42°C (107.6°F). Exercise more precautions, heat cramps and heat exhaustion are potential risks. Continuous activity could precipitate heatstroke.
One should be cognizant that the heat index values are tailored for shaded spots and mild winds. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is a numerical representation of warmth when taking temperature and moisture levels into account. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
By perspiring, the human body can shed its excessive warmth since evaporated sweat cools it off. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. 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 60%, are the least humid months in Santana do Ipanema.

Rainfall

In Santana do Ipanema, in December, it is raining for 5.8 days, with typically 18mm (0.71") of accumulated precipitation. Throughout the year, in Santana do Ipanema, there are 130.4 rainfall days, and 289mm (11.38") of precipitation is accumulated.

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 04:59 and sunset at 17:37. On the last day of December, in Santana do Ipanema, sunrise is at 05:12 and sunset at 17:52 -03.

Sunshine

In December, the average sunshine in Santana do Ipanema is 9h.

UV index

January through March, October through December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum daily UV index of 7 during December morphs into the following directions:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.