December weather forecastCasa Nova, Brazil
December
Weather in December
December, the first month of the summer in Casa Nova, is still a tropical month, with an average temperature ranging between min 23°C (73.4°F) and max 31.5°C (88.7°F).Temperature
December's beginning signals an average high-temperature of a still hot 31.5°C (88.7°F), barely different from November's 32.4°C (90.3°F). In the month of December, the average temperature dips to a moderately hot 23°C (73.4°F) during the night.Heat index
The heat index in December is estimated at a very hot 36°C (96.8°F). Ensure extra safety steps, heat exhaustion and heat cramps are likely. Long activity might lead to heatstroke.Evaluating the heat index requires understanding its values in the shade and with gentle winds. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', unifies temperature and humidity readings to offer a comprehensive feel of warmth. 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. In the direct sunlight, the weather's impact can be amplified, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. With excessive moisture in the atmosphere, the effectiveness of the evaporation process is decreased, causing the body to cool down less efficiently, leading to a sensation of overheating. When body heat isn't effectively managed, risks of dehydration and overheating amplify.
Humidity
The average relative humidity in December in Casa Nova, Brazil, is 59%.Rainfall
In Casa Nova, in December, during 12.5 rainfall days, 68mm (2.68") of precipitation is typically accumulated. In Casa Nova, during the entire year, the rain falls for 107.5 days and collects up to 451mm (17.76") of precipitation.Daylight
The month with the longest days in Casa Nova, Brazil, is December, with an average of 12h and 42min of daylight.On the first day of the month, sunrise is at 05:14 and sunset at 17:51. On the last day of December, in Casa Nova, sunrise is at 05:27 and sunset at 18:06 -03.
Sunshine
The average sunshine in December is 9.5h.UV index
January through April, September through December, with an average maximum UV index of 7, are months with the highest UV index in Casa Nova. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 7 during December translates into these guidelines:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Casa Nova, Brazil
- Average high temperature in December: 31.5°C
The warmest month (with the highest average high temperature) is November (32.4°C).
The month with the lowest average high temperature is July (28.7°C).
- Average low temperature in December: 23°C
The month with the highest average low temperature is November (23.6°C).
The coldest month (with the lowest average low temperature) is August (19.6°C).
Average pressure in December
Casa Nova, Brazil
- Average pressure in December: 1010.9mbar
The month with the highest atmospheric pressure is July (1016.5mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed in December
Casa Nova, Brazil
- Average wind speed in December: 16.4km/h
The windiest month (with the highest average wind speed) is August (24.2km/h).
The calmest month (with the lowest average wind speed) is March (14km/h).
Average humidity in December
Casa Nova, Brazil
- Average humidity in December: 59%
The month with the highest relative humidity is April (68%).
The month with the lowest relative humidity is October (53%).
Average rainfall in December
Casa Nova, Brazil
- Average rainfall in December: 68mm
The wettest month (with the highest rainfall) is February (91mm).
The driest months (with the least rainfall) are August and September (1mm).
Average rainfall days in December
Casa Nova, Brazil
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is March (18.2 days).
The month with the least rainy days is August (1.5 days).
Average daylight in December /
Average sunshine in December
Casa Nova, Brazil
- Average daylight in December: 12h and 42min
The month with the longest days is December (Average daylight: 12h and 42min).
The month with the shortest days is June (Average daylight: 11h and 36min).
- Average sunshine in December: 9h and 30min
The month with the most sunshine is January (Average sunshine: 10h and 42min).
The month with the least sunshine is July (Average sunshine: 6h and 30min).
Average sunshine days in December
Casa Nova, Brazil
- Average sunshine days in December: 16.7 days
The month with the most sunshine days is August (25.9 days).
The month with the least sunshine days is March (10.3 days).
Average UV index in December
Casa Nova, Brazil
- Average UV index in December: 7
The months with the highest UV index are January, February, March, April, September, October, November and December (UV index 7).
The months with the lowest UV index are May, June, July and August (UV index 6).
Average cloud cover in December
Casa Nova, Brazil
- Average cloud cover in December: 31
The months with the most cloud cover are February, April and May (Cloud cover 37).
The month with the least cloud cover is September (Cloud cover 19).
Average visibility in December
Casa Nova, Brazil
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
