December weather forecastChave do Barão, Brazil
December
Weather in December
The first month of the summer, December, is also a moderately hot month in Chave do Barão, Brazil, with an average temperature fluctuating between 19.6°C (67.3°F) and 29°C (84.2°F).Temperature
The beginning of December records an average high-temperature of a still warm 29°C (84.2°F), marking a negligible difference from November's 28.5°C (83.3°F). Chave do Barão's average low-temperature for the month of December records at a comfortable 19.6°C (67.3°F).Heat index
In December, the heat index is appraised at a sweltering 35°C (95°F). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.One should consider that heat index numbers are for shaded settings and light wind. The heat index could see an increase by 15 Fahrenheit (8 Celsius) degrees under direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'real feel', embodies the combination of air temperature and moisture content to illustrate perceived heat. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.
To cool down, the human body relies on perspiration, a process where excessive heat is eliminated as sweat evaporates. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
In December, the average relative humidity is 79%.Rainfall
In Chave do Barão, in December, it is raining for 26.5 days, with typically 177mm (6.97") of accumulated precipitation. In Chave do Barão, during the entire year, the rain falls for 208.3 days and collects up to 1276mm (50.24") of precipitation.Daylight
December has the longest days of the year, with an average of 13h and 30min of daylight.On the first day of the month, sunrise is at 05:16 and sunset at 18:42. On the last day of December, sunrise is at 05:28 and sunset at 18:59 -03.
Sunshine
In December, the average sunshine is 7.9h.UV index
February through July, September and December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index, 5 in December, converts into the following recommendations:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Chave do Barão, Brazil
- Average high temperature in December: 29°C
The warmest month (with the highest average high temperature) is October (29.4°C).
The month with the lowest average high temperature is June (22.8°C).
- Average low temperature in December: 19.6°C
The month with the highest average low temperature is January (19.9°C).
The coldest month (with the lowest average low temperature) is June (13.6°C).
Average pressure in December
Chave do Barão, Brazil
- Average pressure in December: 1011.7mbar
The month with the highest atmospheric pressure is July (1020mbar).
The month with the lowest atmospheric pressure is December (1011.7mbar).
Average wind speed in December
Chave do Barão, Brazil
- Average wind speed in December: 8.1km/h
The windiest month (with the highest average wind speed) is October (9.5km/h).
The calmest months (with the lowest average wind speed) are February and April (7km/h).
Average humidity in December
Chave do Barão, Brazil
- Average humidity in December: 79%
The month with the highest relative humidity is March (85%).
The months with the lowest relative humidity are August and September (65%).
Average rainfall in December
Chave do Barão, Brazil
- Average rainfall in December: 177mm
The wettest month (with the highest rainfall) is January (251mm).
The driest month (with the least rainfall) is August (25mm).
Average rainfall days in December
Chave do Barão, Brazil
- Average rainfall days in December: 26.5 days
The month with the highest number of rainy days is January (28.3 days).
The month with the least rainy days is August (5.5 days).
Average daylight in December /
Average sunshine in December
Chave do Barão, 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 month with the most sunshine is September (Average sunshine: 9h and 6min).
The month with the least sunshine is January (Average sunshine: 7h and 30min).
Average sunshine days in December
Chave do Barão, Brazil
- Average sunshine days in December: 3.5 days
The month with the most sunshine days is August (24.3 days).
The month with the least sunshine days is February (1.6 days).
Average UV index in December
Chave do Barão, Brazil
- Average UV index in December: 5
The months with the highest UV index are January, August, October and November (UV index 6).
The months with the lowest UV index are February, March, April, May, June, July, September and December (UV index 5).
Average cloud cover in December
Chave do Barão, 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 20).
Average visibility in December
Chave do Barão, Brazil
- Average visibility in December: 9km
The months with the highest visibility are July, August, September, October, November and December (9km).
The month with the lowest visibility is May (7km).





