December weather forecastNova Aliança, Brazil

December

Weather in December

December, the first month of the summer in Nova Aliança, is still a warm month, with an average temperature fluctuating between 21.2°C (70.2°F) and 29.8°C (85.6°F).

Temperature

The arrival of December denotes a barely perceptible change in the average high-temperatures to a moderately hot 29.8°C (85.6°F) from November's 30°C (86°F). During December, the nighttime temperature averages of 21.2°C (70.2°F).

Heat index

The heat index for December is estimated at a sweltering 37°C (98.6°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an aggregate value of air's warmth and moisture to show the human-felt temperature. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. 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 are especially vital to children. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

The average relative humidity in December is 81%.

Rainfall

In Nova Aliança, during December, the rain falls for 28.5 days and regularly aggregates up to 201mm (7.91") of precipitation. Throughout the year, in Nova Aliança, Brazil, there are 208.9 rainfall days, and 1257mm (49.49") of precipitation is accumulated.

Daylight

With an average of 13h and 24min of daylight, December has the longest days of the year in Nova Aliança.
On the first day of December in Nova Aliança, sunrise is at 05:27 and sunset at 18:46. On the last day of the month, sunrise is at 05:39 and sunset at 19:02 -03.

Sunshine

In December, the average sunshine is 7.6h.

UV index

January, March through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A typical high UV index of 6 in December suggests the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.

Updated: Feb 2, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In December, in Nova Aliança, the average high-temperature is 29.8°C (85.6°F), and the average low-temperature is 21.2°C (70.2°F). The average heat index (a.k.a. 'real feel', 'felt air temperature'), which combines relative humidity and air temperature, in December is estimated at 37°C (98.6°F).

In Nova Aliança, Brazil, the average relative humidity in December is 81%.

In Nova Aliança, Brazil, in December, it is raining for 28.5 days, with typically 201mm (7.91") of accumulated precipitation.

December has the longest days of the year in Nova Aliança, with an average of 13h and 24min of daylight.

In December, the average day length is 13h and 23min.

On the first day of December, sunrise is at 05:27 and sunset at 18:46. On the last day of the month, sunrise is at 05:39 and sunset at 19:02 -03.

In December, the average sunshine duration in Nova Aliança, Brazil, is 7.6h.

January, March through December, with an average maximum UV index of 6, are months with the highest UV index in Nova Aliança, Brazil.

In Nova Aliança, the average daily maximum UV index in December is 6. A UV Index reading of 6 to 7 represents a high health risk from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

30°C

29.8°C

29°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

9.6km/h

8.7km/h

8.2km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

4.5

1.6

1.1

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Nova Aliança, Brazil

Average high temperature in December: 29.8°C

The warmest month (with the highest average high temperature) is September (32.2°C).
The month with the lowest average high temperature is June (25.3°C).

Average low temperature in December: 21.2°C

The month with the highest average low temperature is December (21.2°C).
The coldest month (with the lowest average low temperature) is June (15.5°C).

Average pressure in December
Nova Aliança, Brazil

Average pressure in December: 1010mbar

The month with the highest atmospheric pressure is July (1017.9mbar).
The months with the lowest atmospheric pressure are November and December (1010mbar).

Average wind speed in December
Nova Aliança, Brazil

Average wind speed in December: 7.8km/h

The windiest months (with the highest average wind speed) are August and September (10km/h).
The calmest month (with the lowest average wind speed) is February (6.9km/h).

Average humidity in December
Nova Aliança, Brazil

Average humidity in December: 81%

The month with the highest relative humidity is March (86%).
The months with the lowest relative humidity are August and September (52%).

Average rainfall in December
Nova Aliança, Brazil

Average rainfall in December: 201mm

The wettest month (with the highest rainfall) is January (224mm).
The driest month (with the least rainfall) is August (9mm).

Average rainfall days in December
Nova Aliança, Brazil

Average rainfall days in December: 28.5 days

The month with the highest number of rainy days is January (29.6 days).
The month with the least rainy days is August (3.3 days).

Average daylight in December /
Average sunshine in December
Nova Aliança, Brazil

Average daylight in December: 13h and 24min

The month with the longest days is December (Average daylight: 13h and 24min).
The month with the shortest days is June (Average daylight: 10h and 54min).

Average sunshine in December: 7h and 36min

The month with the most sunshine is August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 7h and 0min).

Average sunshine days in December
Nova Aliança, Brazil

Average sunshine days in December: 1.6 days

The month with the most sunshine days is August (26.9 days).
The month with the least sunshine days is January (1.1 days).

Average UV index in December
Nova Aliança, Brazil

Average UV index in December: 6

The months with the highest UV index are January, March, April, May, June, July, August, September, October, November and December (UV index 6).
The month with the lowest UV index is February (UV index 5).