December weather forecast
Araras, Brazil

December

Weather in December

December, the first month of the summer in Araras, is also a moderately hot month, with temperature in the range of an average low of 19.5°C (67.1°F) and an average high of 28.7°C (83.7°F).

Temperature

An average high-temperature of a still warm 28.7°C (83.7°F) marks December, exhibiting a close resemblance to the conditions in November. Araras's nighttime temperature in December falls to an average of 19.5°C (67.1°F).

Heat index

In December, the heat index is calculated to be a tropical 34°C (93.2°F). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'apparent temperature' or 'real feel', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.

Humidity

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

Rainfall

In December, the rain falls for 27.5 days. Throughout December, 180mm (7.09") of precipitation is accumulated. In Araras, during the entire year, the rain falls for 210.1 days and collects up to 1286mm (50.63") 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 18:40. On the last day of December, sunrise is at 05:28 and sunset at 18:57 -03.

Sunshine

In Araras, the average sunshine in December is 7.9h.

UV index

February through July and December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: In December, the average maximum UV index of 5 translates into the following recommendations:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. Always opt for UVA and UVB-resistant sunglasses on radiant days.

Frequently asked questions

How hot is December in Araras?
In Araras, in December, the average high-temperature is 28.7°C (83.7°F), and the average low-temperature is 19.5°C (67.1°F). In December, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines relative humidity and air temperature, is calculated to be 34°C (93.2°F).
What is the average humidity in December in Araras?
The average relative humidity in December in Araras, Brazil, is 81%.
How much does it rain in Araras in December?
In December, the rain falls for 27.5 days. Throughout December, 180mm (7.09") of precipitation is accumulated.
When are the longest days in Araras?
With an average of 13h and 30min of daylight, December has the longest days of the year in Araras, Brazil.
What is the average length of the day in December in Araras?
In Araras, Brazil, the average day length in December is 13h and 29min.
When is the sunrise / sunset in December in Araras?
In December, on the first day of the month, sunrise is at 05:16 and sunset at 18:40. On the last day of the month, in Araras, Brazil, sunrise is at 05:28 and sunset at 18:57 -03.
How many hours of sunshine does Araras have in December?
In Araras, the average sunshine duration in December is 7.9h.
What is the month with the lowest UV index in Araras?
The months with the lowest UV index in Araras are February through July and December, with an average maximum UV index of 5.
How high is the UV index in December in Araras?
In Araras, the average daily maximum UV index in December is 5. A UV Index value of 3 to 5 symbolizes a medium hazard to health from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Araras, Brazil
Average temperature in December
Araras, Brazil
  • Average high temperature in December: 28.7°C

The warmest month (with the highest average high temperature) is October (29.5°C).
The month with the lowest average high temperature is June (23°C).

  • Average low temperature in December: 19.5°C

The month with the highest average low temperature is December (19.5°C).
The coldest month (with the lowest average low temperature) is June (13.4°C).

Average pressure in December - Araras, Brazil
Average pressure in December
Araras, Brazil
  • Average pressure in December: 1011.8mbar

The month with the highest atmospheric pressure is July (1020.1mbar).
The month with the lowest atmospheric pressure is December (1011.8mbar).

Average wind speed in December - Araras, Brazil
Average wind speed in December
Araras, Brazil
  • Average wind speed in December: 7.5km/h

The windiest month (with the highest average wind speed) is October (8.7km/h).
The calmest months (with the lowest average wind speed) are March and April (6.4km/h).

Average humidity in December - Araras, Brazil
Average humidity in December
Araras, Brazil
  • Average humidity in December: 81%

The month with the highest relative humidity is March (86%).
The month with the lowest relative humidity is September (63%).

Average rainfall in December - Araras, Brazil
Average rainfall in December
Araras, Brazil
  • Average rainfall in December: 180mm

The wettest month (with the highest rainfall) is January (243mm).
The driest months (with the least rainfall) are July and August (21mm).

Average rainfall days in December - Araras, Brazil
Average rainfall days in December
Araras, Brazil
  • Average rainfall days in December: 27.5 days

The month with the highest number of rainy days is January (28.3 days).
The month with the least rainy days is August (5.3 days).

Average daylight in December / Average sunshine in December - Araras, Brazil
Average daylight in December /
Average sunshine in December
Araras, Brazil
  • Average daylight in December: 13h and 3min

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 5min

The month with the most sunshine is September (Average sunshine: 9h and 18min).
The month with the least sunshine is January (Average sunshine: 7h and 24min).

Average sunshine days in December - Araras, Brazil
Average sunshine days in December
Araras, Brazil
  • Average sunshine days in December: 2.9 days

The month with the most sunshine days is August (25 days).
The month with the least sunshine days is February (1.9 days).

Average UV index in December - Araras, Brazil
Average UV index in December
Araras, Brazil
  • Average UV index in December: 5

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

Average cloud cover in December - Araras, Brazil
Average cloud cover in December
Araras, 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 18).

Average visibility in December - Araras, Brazil
Average visibility in December
Araras, Brazil
  • Average visibility in December: 8km

The month with the highest visibility is August (10km).
The months with the lowest visibility are January, March, April and May (7km).

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