December weather forecastMariápolis, Brazil
December
Weather in December
The first month of the summer, December, is still a hot month in Mariápolis, Brazil, with an average temperature fluctuating between 30°C (86°F) and 21.3°C (70.3°F).Temperature
Mariápolis's December average high-temperature settles at a still hot 30°C (86°F), showing a near match with the preceding month. During December, the average low-temperature in Mariápolis is an agreeable 21.3°C (70.3°F).Heat index
The heat index in December is calculated to be a torrid 37°C (98.6°F). Additional precautions are required to avert heat cramps and heat exhaustion. Persistent activity may culminate in heatstroke.Factoring in the heat index, values are geared towards shaded areas with light breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', offers an insight into how hot it feels when we factor in moisture content. The impact of weather is personal, differing among a variety of people based on differences in body mass, height, and the level of physical exertion. Given direct exposure to sunlight, one might experience a rise in the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
Evaporation of sweat is the main factor behind the cooling effect of perspiration in the human body. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.
Humidity
The average relative humidity in December in Mariápolis is 78%.Rainfall
In Mariápolis, Brazil, during December, the rain falls for 25.8 days and regularly aggregates up to 168mm (6.61") of precipitation. Throughout the year, in Mariápolis, there are 196.8 rainfall days, and 1260mm (49.61") of precipitation is accumulated.Daylight
With an average of 13h and 24min of daylight, December has the longest days of the year.On the first day of December in Mariápolis, sunrise is at 05:32 and sunset at 18:55. On the last day of the month, sunrise is at 05:44 and sunset at 19:11 -03.
Sunshine
The average sunshine in December is 7.8h.UV index
The months with the highest UV index in Mariápolis are January through March, June through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 6 during December leads to these instructions:
Ward off overexposure. Defence against solar harm is crucial. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mariápolis, Brazil
- Average high temperature in December: 30°C
The warmest month (with the highest average high temperature) is October (30.9°C).
The month with the lowest average high temperature is June (24.1°C).
- Average low temperature in December: 21.3°C
The months with the highest average low temperature are January and December (21.3°C).
The coldest months (with the lowest average low temperature) are June and July (15.3°C).
Average pressure in December
Mariápolis, Brazil
- Average pressure in December: 1009.6mbar
The month with the highest atmospheric pressure is July (1018.1mbar).
The month with the lowest atmospheric pressure is December (1009.6mbar).
Average wind speed in December
Mariápolis, Brazil
- Average wind speed in December: 8.5km/h
The windiest month (with the highest average wind speed) is August (11.1km/h).
The calmest months (with the lowest average wind speed) are February and March (7.8km/h).
Average humidity in December
Mariápolis, Brazil
- Average humidity in December: 78%
The months with the highest relative humidity are February and March (84%).
The months with the lowest relative humidity are August and September (59%).
Average rainfall in December
Mariápolis, Brazil
- Average rainfall in December: 168mm
The wettest month (with the highest rainfall) is January (233mm).
The driest month (with the least rainfall) is July (29mm).
Average rainfall days in December
Mariápolis, Brazil
- Average rainfall days in December: 25.8 days
The month with the highest number of rainy days is January (28.5 days).
The month with the least rainy days is August (5.3 days).
Average daylight in December /
Average sunshine in December
Mariápolis, 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 48min).
- Average sunshine in December: 7h and 48min
The month with the most sunshine is August (Average sunshine: 9h and 24min).
The month with the least sunshine is January (Average sunshine: 7h and 24min).
Average sunshine days in December
Mariápolis, Brazil
- Average sunshine days in December: 4.5 days
The month with the most sunshine days is August (25.1 days).
The month with the least sunshine days is January (2 days).
Average UV index in December
Mariápolis, Brazil
- Average UV index in December: 6
The months with the highest UV index are January, February, March, June, July, August, September, October, November and December (UV index 6).
The months with the lowest UV index are April and May (UV index 5).
Average cloud cover in December
Mariápolis, Brazil
- Average cloud cover in December: 43
The month with the most cloud cover is January (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in December
Mariápolis, Brazil
- Average visibility in December: 9km
The months with the highest visibility are August and September (10km).
The months with the lowest visibility are January, February, March, April, May and June (8km).
