December weather forecast
Ubatã, Brazil

The first month of the summer, December, is a tropical month in Ubatã, Brazil, with an average temperature varying between 30.4°C (86.7°F) and 19.5°C (67.1°F).

Temperature

Ubatã experiences a minor change to a hot 30.4°C (86.7°F) in average high-temperature during December, closely reflecting November. Ubatã's average low-temperature is measured at an enjoyable 19.5°C (67.1°F) during December.

Heat index

December's average heat index is calculated to be a blisteringly hot 40°C (104°F). Undertake additional safety actions, risk of heat cramps and heat exhaustion is significant. Persistent activity may induce heatstroke.
Understanding the heat index involves considering values for shaded locales with light wind. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', marries air temperature and humidity to produce a value illustrating perceived warmth. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly meaningful for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Perspiration is the human body's physiological response to high temperatures and is an attempt to lower body temperature through evaporation of sweat. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

In December, the average relative humidity is 82%.

Rainfall

In December, the rain falls for 19 days. Throughout December, 55mm (2.17") of precipitation is accumulated. In Ubatã, during the entire year, the rain falls for 241.8 days and collects up to 524mm (20.63") of precipitation.

Daylight

With an average of 13h and 0min of daylight, December has the longest days of the year in Ubatã.
On the first day of the month, sunrise is at 05:00 and sunset at 17:54. On the last day of December, in Ubatã, sunrise is at 05:12 and sunset at 18:09 -03.

Sunshine

In Ubatã, Brazil, the average sunshine in December is 7.5h.

UV index

The months with the highest UV index in Ubatã are January through May, September through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: The UV index of 6 during December translates into the following guidance:
Stand by precautions and apply sun safety measures. Evading sunburn is of great importance. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.