December weather forecastCerro Branco, Brazil
December
Weather in December
December, the first month of the summer in Cerro Branco, is a tropical month, with temperature in the range of an average high of 30.5°C (86.9°F) and an average low of 18.3°C (64.9°F).Temperature
During December, the average high-temperature is a tropical 30.5°C (86.9°F), maintaining a close resemblance to that of the preceding month. A striking difference from the daytime highs is registered during December nights, with an average temperature of 18.3°C (64.9°F).Heat index
Throughout December, the heat index is calculated to be a torrid 36°C (96.8°F). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.Heat index details are generally centered around shaded locations and a mild breeze. Direct exposure to sunshine could lead to a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', embodies the combination of air temperature and moisture content to illustrate perceived heat. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Consider the sun's direct rays and their impact; they can potentially increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
December is the least humid month in Cerro Branco, with an average relative humidity of 70%.Rainfall
In Cerro Branco, Brazil, in December, during 13.5 rainfall days, 71mm (2.8") of precipitation is typically accumulated. Throughout the year, there are 145.8 rainfall days, and 902mm (35.51") of precipitation is accumulated.Daylight
December has the longest days of the year, with an average of 14h and 0min of daylight.On the first day of December, sunrise is at 05:23 and sunset at 19:18. On the last day of the month, sunrise is at 05:34 and sunset at 19:35 -03.
Sunshine
With an average of 8.7h of sunshine, December has the most sunshine of the year.UV index
The month with the highest UV index in Cerro Branco is December, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: In December, a daily UV index of 7 turns into the following recommendations:
Apply measures and align with sun safety principles. Safeguarding against skin and eye injury is pivotal. The Sun's UV radiation is most potent between the hours of 10 a.m. and 4 p.m. Try to avoid direct sunlight during this time. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cerro Branco, Brazil
- Average high temperature in December: 30.5°C
The warmest months (with the highest average high temperature) are January and February (31.3°C).
The month with the lowest average high temperature is July (18.1°C).
- Average low temperature in December: 18.3°C
The month with the highest average low temperature is January (19.4°C).
The coldest month (with the lowest average low temperature) is July (9.3°C).
Average pressure in December
Cerro Branco, Brazil
- Average pressure in December: 1010.9mbar
The month with the highest atmospheric pressure is July (1019.7mbar).
The month with the lowest atmospheric pressure is December (1010.9mbar).
Average wind speed in December
Cerro Branco, Brazil
- Average wind speed in December: 12.1km/h
The windiest months (with the highest average wind speed) are September and October (12.8km/h).
The calmest months (with the lowest average wind speed) are April, May and June (10.6km/h).
Average humidity in December
Cerro Branco, Brazil
- Average humidity in December: 70%
The months with the highest relative humidity are May, June and July (83%).
The month with the lowest relative humidity is December (70%).
Average rainfall in December
Cerro Branco, Brazil
- Average rainfall in December: 71mm
The wettest month (with the highest rainfall) is October (104mm).
The driest month (with the least rainfall) is February (55mm).
Average rainfall days in December
Cerro Branco, Brazil
- Average rainfall days in December: 13.5 days
The month with the highest number of rainy days is January (14.8 days).
The month with the least rainy days is June (10.2 days).
Average daylight in December /
Average sunshine in December
Cerro Branco, Brazil
- Average daylight in December: 14h and 0min
The month with the longest days is December (Average daylight: 14h and 0min).
The month with the shortest days is June (Average daylight: 10h and 18min).
- Average sunshine in December: 8h and 42min
The month with the most sunshine is December (Average sunshine: 8h and 42min).
The months with the least sunshine are May, June, July and September (Average sunshine: 7h and 18min).
Average sunshine days in December
Cerro Branco, Brazil
- Average sunshine days in December: 16.3 days
The month with the most sunshine days is July (19.3 days).
The month with the least sunshine days is February (13.5 days).
Average UV index in December
Cerro Branco, Brazil
- Average UV index in December: 7
The month with the highest UV index is December (UV index 7).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in December
Cerro Branco, Brazil
- Average cloud cover in December: 31
The month with the most cloud cover is May (Cloud cover 40).
The month with the least cloud cover is November (Cloud cover 30).
Average visibility in December
Cerro Branco, Brazil
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).





