December weather forecastDom Basílio, Brazil
December
Weather in December
The first month of the summer, December, is also a moderately hot month in Dom Basílio, Brazil, with an average temperature varying between 18.7°C (65.7°F) and 28.5°C (83.3°F).Temperature
Dom Basílio records a slight change with December's average high-temperatures adjusting to a still warm 28.5°C (83.3°F) from November's 28.4°C (83.1°F). Dom Basílio experiences an average temperature drop to a refreshing 18.7°C (65.7°F) during December nights.Heat index
During December, the heat index is estimated at a tropical 32°C (89.6°F). If activity and exposure persist, they could induce fatigue, leading to possible heat cramps.Note that heat index values are valued for light wind and location in the shade. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a composite of temperature and humidity figures to convey how warm it feels. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Humidity
The average relative humidity in December is 75%.Rainfall
The month with the most rainfall is December, when the rain falls for 17.7 days and typically aggregates up to 114mm (4.49") of precipitation.Daylight
With an average of 12h and 54min of daylight, December has the longest days of the year in Dom Basílio, Brazil.On the first day of the month, sunrise is at 05:09 and sunset at 18:02. On the last day of December, in Dom Basílio, sunrise is at 05:22 and sunset at 18:18 -03.
Sunshine
December has the most sunshine of the year in Dom Basílio, with an average of 9.9h of sunshine.UV index
January through May, August through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for the ordinary person.Note: A daily maximum UV index of 6 in December translates into the following instructions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Dom Basílio, Brazil
- Average high temperature in December: 28.5°C
The warmest month (with the highest average high temperature) is October (29.5°C).
The month with the lowest average high temperature is July (24.8°C).
- Average low temperature in December: 18.7°C
The month with the highest average low temperature is November (19.1°C).
The coldest month (with the lowest average low temperature) is July (15.6°C).
Average pressure in December
Dom Basílio, Brazil
- Average pressure in December: 1012.8mbar
The month with the highest atmospheric pressure is July (1018.9mbar).
The month with the lowest atmospheric pressure is November (1012.6mbar).
Average wind speed in December
Dom Basílio, Brazil
- Average wind speed in December: 8.6km/h
The windiest month (with the highest average wind speed) is September (12.9km/h).
The calmest month (with the lowest average wind speed) is March (8.1km/h).
Average humidity in December
Dom Basílio, Brazil
- Average humidity in December: 75%
The month with the highest relative humidity is April (78%).
The month with the lowest relative humidity is September (63%).
Average rainfall in December
Dom Basílio, Brazil
- Average rainfall in December: 114mm
The wettest month (with the highest rainfall) is December (114mm).
The driest month (with the least rainfall) is August (4mm).
Average rainfall days in December
Dom Basílio, Brazil
- Average rainfall days in December: 17.7 days
The month with the highest number of rainy days is March (18.2 days).
The month with the least rainy days is September (5.5 days).
Average daylight in December /
Average sunshine in December
Dom Basílio, Brazil
- Average daylight in December: 12h and 54min
The month with the longest days is December (Average daylight: 12h and 54min).
The month with the shortest days is June (Average daylight: 11h and 18min).
- Average sunshine in December: 9h and 54min
The month with the most sunshine is December (Average sunshine: 9h and 54min).
The months with the least sunshine are June and July (Average sunshine: 6h and 0min).
Average sunshine days in December
Dom Basílio, Brazil
- Average sunshine days in December: 11.5 days
The month with the most sunshine days is September (20.5 days).
The month with the least sunshine days is November (10.4 days).
Average UV index in December
Dom Basílio, Brazil
- Average UV index in December: 6
The months with the highest UV index are January, February, March, April, May, August, September, October, November and December (UV index 6).
The months with the lowest UV index are June and July (UV index 5).
Average cloud cover in December
Dom Basílio, Brazil
- Average cloud cover in December: 40
The months with the most cloud cover are April and May (Cloud cover 49).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in December
Dom Basílio, Brazil
- Average visibility in December: 9km
The months with the highest visibility are September and October (10km).
The months with the lowest visibility are January, February, March and April (8km).
