December weather forecastFloreal, Brazil
December
Weather in December
The first month of the summer, December, is still a tropical month in Floreal, Brazil, with an average temperature fluctuating between 21.3°C (70.3°F) and 30°C (86°F).Temperature
In December, Floreal experiences a minor shift in meteorological conditions with average high-temperatures marked at a still hot 30°C (86°F), closely mirroring the climate in November. In December, Floreal experiences an average nighttime temperature of 21.3°C (70.3°F).Heat index
December's average heat index is evaluated at a sweltering 38°C (100.4°F). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.Heat index specifics point out values are for conditions of shade and a slight breeze. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', gauges the sensation of temperature factoring in the air's moisture content. One's weather perception can be influenced by a range of factors including metabolic differences, being pregnant, and their level of physical activity. 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 of high significance for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Exceeding the body's heat disposal threshold results in a rise in body temperature and potential thermal disorders.
Humidity
In December, the average relative humidity in Floreal is 80%.Rainfall
In Floreal, during December, the rain falls for 28.9 days and regularly aggregates up to 190mm (7.48") of precipitation. Throughout the year, there are 206.5 rainfall days, and 1211mm (47.68") of precipitation is accumulated.Daylight
The month with the longest days in Floreal is December, with an average of 13h and 24min of daylight.On the first day of December in Floreal, sunrise is at 05:30 and sunset at 18:48. On the last day of the month, sunrise is at 05:42 and sunset at 19:04 -03.
Sunshine
In December, the average sunshine in Floreal is 7.6h.UV index
In Floreal, Brazil, the average daily maximum UV index in December is 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: The maximum UV index, 6 during December, leads to the following recommendations:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Floreal, Brazil
- Average high temperature in December: 30°C
The warmest month (with the highest average high temperature) is September (32.7°C).
The month with the lowest average high temperature is June (25.6°C).
- Average low temperature in December: 21.3°C
The month with the highest average low temperature is December (21.3°C).
The coldest month (with the lowest average low temperature) is June (15.9°C).
Average pressure in December
Floreal, Brazil
- Average pressure in December: 1009.8mbar
The month with the highest atmospheric pressure is July (1017.6mbar).
The month with the lowest atmospheric pressure is November (1009.7mbar).
Average wind speed in December
Floreal, Brazil
- Average wind speed in December: 7.7km/h
The windiest month (with the highest average wind speed) is August (10.2km/h).
The calmest month (with the lowest average wind speed) is February (6.7km/h).
Average humidity in December
Floreal, Brazil
- Average humidity in December: 80%
The month with the highest relative humidity is March (87%).
The month with the lowest relative humidity is August (49%).
Average rainfall in December
Floreal, Brazil
- Average rainfall in December: 190mm
The wettest month (with the highest rainfall) is January (218mm).
The driest month (with the least rainfall) is August (7mm).
Average rainfall days in December
Floreal, Brazil
- Average rainfall days in December: 28.9 days
The month with the highest number of rainy days is January (29.3 days).
The month with the least rainy days is August (2.6 days).
Average daylight in December /
Average sunshine in December
Floreal, Brazil
- Average daylight in December: 13h and 24min
The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).
- Average sunshine in December: 7h and 36min
The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 7h and 0min).
Average sunshine days in December
Floreal, Brazil
- Average sunshine days in December: 1.4 days
The month with the most sunshine days is August (27.7 days).
The month with the least sunshine days is February (1.1 days).
Average UV index in December
Floreal, Brazil
- Average UV index in December: 6
The month with the highest UV index is August (UV index 7).
The months with the lowest UV index are February and April (UV index 5).
Average cloud cover in December
Floreal, Brazil
- Average cloud cover in December: 49
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 14).
Average visibility in December
Floreal, Brazil
- Average visibility in December: 8km
The months with the highest visibility are July, August and September (10km).
The month with the lowest visibility is March (7km).





