December weather forecastRibeirópolis, Brazil

Weather in December

December, the first month of the summer in Ribeirópolis, is also a hot month, with an average temperature varying between 31.9°C (89.4°F) and 21.8°C (71.2°F).

Temperature

December notes an average high-temperature of a still tropical 31.9°C (89.4°F), subtly differing from November's 31.5°C (88.7°F). Throughout December, Ribeirópolis witnesses a consistent average low-temperature of 21.8°C (71.2°F).

Heat index

In December, the average heat index is appraised at an extremely hot 41°C (105.8°F). Adopt heightened safety measures, heat cramps and heat exhaustion may occur. Sustained activity might cause heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. The heat index can potentially augment by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'feels like' or 'real feel', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The individual's impression of temperature can be affected by numerous factors such as metabolic variations, physical exertion, and attire. When in direct sunlight, one should be cautious as it can raise the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
The human body normally cools itself by perspiration. Excessive warmth is eliminated from the body by evaporation of sweat. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.

Humidity

With an average relative humidity of 72%, December is the least humid month in Ribeirópolis.

Rainfall

In Ribeirópolis, in December, it is raining for 8 days, with typically 24mm (0.94") of accumulated precipitation. In Ribeirópolis, during the entire year, the rain falls for 183.6 days and collects up to 371mm (14.61") of precipitation.

Daylight

With an average of 12h and 42min of daylight, December has the longest days of the year in Ribeirópolis.
On the first day of December in Ribeirópolis, sunrise is at 04:58 and sunset at 17:39. On the last day of the month, sunrise is at 05:11 and sunset at 17:54 -03.

Sunshine

The month with the most sunshine in Ribeirópolis is December, with an average of 7.9h of sunshine.

UV index

January through March, November and December, with an average maximum UV index of 7, are months with the highest UV index in Ribeirópolis. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high daily UV index of 7 during December translates into the following directions:
Deter overexposure. Protecting against the sun's effects is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.