December weather forecastBariri, Brazil
December
Weather in December
December, the first month of the summer in Bariri, is also a moderately hot month, with an average temperature varying between 19.7°C (67.5°F) and 29.2°C (84.6°F).Temperature
Bariri notes an average high-temperature of a still warm 29.2°C (84.6°F) in December, displaying minor variation from November. Throughout the month of December, Bariri expects an average low of 19.7°C (67.5°F).Heat index
For most parts of December, the heat index is computed to be a very hot 35°C (95°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.Data suggests that the heat index is set for environments in shade and with a light wind. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', combines air temperature and relative humidity to represent a human perceived temperature equivalent. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. The sun, when shining directly, can have a significant impact on the perceived temperature, increasing the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. 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 higher relative humidity, the rate of evaporation is reduced, resulting in increased heat retention in the body compared to drier air. Heat absorption that surpasses the body's shedding capability can lead to overheating and varying levels of dehydration.
Humidity
In December, the average relative humidity is 80%.Rainfall
In Bariri, Brazil, in December, it is raining for 25.5 days, with typically 161mm (6.34") of accumulated precipitation. Throughout the year, there are 192.9 rainfall days, and 1119mm (44.06") of precipitation is accumulated.Daylight
The month with the longest days is December, with an average of 13h and 30min of daylight.On the first day of December, sunrise is at 05:22 and sunset at 18:45. On the last day of the month, sunrise is at 05:34 and sunset at 19:02 -03.
Sunshine
The average sunshine in December in Bariri is 7.9h.UV index
January, March, August through December, with an average maximum UV index of 6, are months with the highest UV index in Bariri. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: The daily high UV index of 6 during December translates into the following recommendations:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bariri, Brazil
- Average high temperature in December: 29.2°C
The warmest month (with the highest average high temperature) is October (29.8°C).
The month with the lowest average high temperature is June (23.3°C).
- Average low temperature in December: 19.7°C
The month with the highest average low temperature is January (19.8°C).
The coldest month (with the lowest average low temperature) is June (13.7°C).
Average pressure in December
Bariri, Brazil
- Average pressure in December: 1011.1mbar
The month with the highest atmospheric pressure is July (1019.2mbar).
The month with the lowest atmospheric pressure is December (1011.1mbar).
Average wind speed in December
Bariri, Brazil
- Average wind speed in December: 8.4km/h
The windiest month (with the highest average wind speed) is October (10.5km/h).
The calmest month (with the lowest average wind speed) is February (7.3km/h).
Average humidity in December
Bariri, Brazil
- Average humidity in December: 80%
The month with the highest relative humidity is March (86%).
The month with the lowest relative humidity is September (62%).
Average rainfall in December
Bariri, Brazil
- Average rainfall in December: 161mm
The wettest month (with the highest rainfall) is January (222mm).
The driest months (with the least rainfall) are July and August (19mm).
Average rainfall days in December
Bariri, Brazil
- Average rainfall days in December: 25.5 days
The month with the highest number of rainy days is January (27.3 days).
The month with the least rainy days is August (4.7 days).
Average daylight in December /
Average sunshine in December
Bariri, Brazil
- Average daylight in December: 13h and 30min
The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 48min).
- Average sunshine in December: 7h and 54min
The months with the most sunshine are August and September (Average sunshine: 9h and 12min).
The month with the least sunshine is January (Average sunshine: 7h and 24min).
Average sunshine days in December
Bariri, Brazil
- Average sunshine days in December: 3.8 days
The month with the most sunshine days is August (25.2 days).
The month with the least sunshine days is January (2.2 days).
Average UV index in December
Bariri, Brazil
- Average UV index in December: 6
The months with the highest UV index are January, March, August, September, October, November and December (UV index 6).
The months with the lowest UV index are February, April, May, June and July (UV index 5).
Average cloud cover in December
Bariri, Brazil
- Average cloud cover in December: 46
The month with the most cloud cover is January (Cloud cover 52).
The month with the least cloud cover is August (Cloud cover 17).
Average visibility in December
Bariri, Brazil
- Average visibility in December: 8km
The month with the highest visibility is August (10km).
The month with the lowest visibility is March (7km).





