December weather forecastTuneiras do Oeste, Brazil
December
Weather in December
The first month of the summer, December, is also a moderately hot month in Tuneiras do Oeste, Brazil, with an average temperature fluctuating between 20.5°C (68.9°F) and 29.7°C (85.5°F).Temperature
With its high average temperature of 29.7°C (85.5°F) and a low of 20.5°C (68.9°F), December is regarded as the warmest month.Heat index
The average heat index in December is appraised at a very hot 37°C (98.6°F). Exercise extra preventive actions, heat cramps and heat exhaustion are plausible. Continuous activity could result in heatstroke.Note that heat index values are valued for light wind and location in the shade. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. As the body accumulates more heat than it can release, body temperature goes up, increasing the risk of heat-related health issues.
Humidity
In December, the average relative humidity is 80%.Rainfall
In December, in Tuneiras do Oeste, the rain falls for 24.4 days. Throughout December, 137mm (5.39") of precipitation is accumulated. In Tuneiras do Oeste, during the entire year, the rain falls for 186.7 days and collects up to 1118mm (44.02") of precipitation.Daylight
December has the longest days of the year in Tuneiras do Oeste, with an average of 13h and 36min of daylight.On the first day of December, sunrise is at 05:35 and sunset at 19:05. On the last day of the month, sunrise is at 05:47 and sunset at 19:22 -03.
Sunshine
In December, the average sunshine is 8.7h.UV index
The months with the highest UV index in Tuneiras do Oeste are January through March, August through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 6 in December translates into the following instructions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Tuneiras do Oeste, Brazil
- Average high temperature in December: 29.7°C
The warmest month (with the highest average high temperature) is December (29.7°C).
The month with the lowest average high temperature is June (22.1°C).
- Average low temperature in December: 20.5°C
The month with the highest average low temperature is December (20.5°C).
The coldest month (with the lowest average low temperature) is July (13.5°C).
Average pressure in December
Tuneiras do Oeste, Brazil
- Average pressure in December: 1009.8mbar
The month with the highest atmospheric pressure is July (1018.5mbar).
The month with the lowest atmospheric pressure is December (1009.8mbar).
Average wind speed in December
Tuneiras do Oeste, Brazil
- Average wind speed in December: 8km/h
The windiest month (with the highest average wind speed) is August (9.7km/h).
The calmest month (with the lowest average wind speed) is March (7.1km/h).
Average humidity in December
Tuneiras do Oeste, Brazil
- Average humidity in December: 80%
The month with the highest relative humidity is June (87%).
The month with the lowest relative humidity is September (65%).
Average rainfall in December
Tuneiras do Oeste, Brazil
- Average rainfall in December: 137mm
The wettest month (with the highest rainfall) is January (163mm).
The driest month (with the least rainfall) is August (43mm).
Average rainfall days in December
Tuneiras do Oeste, Brazil
- Average rainfall days in December: 24.4 days
The month with the highest number of rainy days is January (25.7 days).
The month with the least rainy days is August (6.6 days).
Average daylight in December /
Average sunshine in December
Tuneiras do Oeste, Brazil
- Average daylight in December: 13h and 36min
The month with the longest days is December (Average daylight: 13h and 36min).
The month with the shortest days is June (Average daylight: 10h and 42min).
- Average sunshine in December: 8h and 42min
The month with the most sunshine is August (Average sunshine: 9h and 6min).
The month with the least sunshine is February (Average sunshine: 7h and 24min).
Average sunshine days in December
Tuneiras do Oeste, Brazil
- Average sunshine days in December: 6 days
The month with the most sunshine days is August (23.3 days).
The month with the least sunshine days is February (3.4 days).
Average UV index in December
Tuneiras do Oeste, Brazil
- Average UV index in December: 6
The months with the highest UV index are January, February, March, August, September, October, November and December (UV index 6).
The month with the lowest UV index is May (UV index 4).
Average cloud cover in December
Tuneiras do Oeste, Brazil
- Average cloud cover in December: 39
The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in December
Tuneiras do Oeste, Brazil
- Average visibility in December: 8km
The months with the highest visibility are August, September, October and November (9km).
The months with the lowest visibility are January, February, May and June (7km).





