December weather forecast
Pederneiras, Brazil

December

Weather in December

December, the first month of the summer in Pederneiras, is also a moderately hot month, with an average temperature varying between 29.2°C (84.6°F) and 19.7°C (67.5°F).

Temperature

December is marked by an average high-temperature of a still moderately hot 29.2°C (84.6°F), almost identical to the preceding month. In Pederneiras, the average low-temperature during the month of December is a refreshing 19.7°C (67.5°F).

Heat index

December's heat index is computed to be a torrid 35°C (95°F). More safety actions are required, heat exhaustion and heat cramps are probable. Long-term activity may precipitate heatstroke.
Factoring in the heat index, values are geared towards shaded areas with light breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', evaluates the perceived heat by adding the effect of moisture in the air. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Under direct sun rays, the felt temperature might be heightened, with the heat index increasing by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Children frequently do not understand the need for recuperation and hydration. Thirst, being a late manifestation of dehydration, underlines the need to hydrate frequently, especially when engaging in prolonged physical exercises.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. Under high air temperature and humidity (high heat index) conditions, perspiration is limited, and the perception of heat is increased. Rising body temperatures due to excess heat retention could signify impending heat disorders.

Humidity

In December, the average relative humidity in Pederneiras is 80%.

Rainfall

In December, in Pederneiras, the rain falls for 25.5 days. Throughout December, 161mm (6.34") of precipitation is accumulated. Throughout the year, in Pederneiras, there are 192.9 rainfall days, and 1119mm (44.06") of precipitation is accumulated.

Daylight

December has the longest days of the year in Pederneiras, with an average of 13h and 30min of daylight.
On the first day of the month, sunrise is at 05:22 and sunset at 18:46. On the last day of December, in Pederneiras, sunrise is at 05:34 and sunset at 19:02 -03.

Sunshine

The average sunshine in December in Pederneiras is 7.9h.

UV index

The months with the highest UV index are January, March, August through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The maximum UV index, 6 during December, leads to the following recommendations:
Resist extreme sun exposure. Guarding against solar damage is essential. It's important to stay in the shade and limit exposure to the sun from 10 a.m. to 4 p.m., when UV radiation is most intense, although remember that shade structures may not provide full sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.

Frequently asked questions

How hot does it get in Pederneiras in December?
An average high-temperature, in December, in Pederneiras, is 29.2°C (84.6°F) and the average low-temperature is 19.7°C (67.5°F). In December, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, is computed to be 35°C (95°F).
What is the average humidity in December in Pederneiras?
The average relative humidity in December in Pederneiras is 80%.
How many days does it rain in December in Pederneiras?
In December, in Pederneiras, the rain falls for 25.5 days. Throughout December, 161mm (6.34") of precipitation is accumulated.
When are the longest days in Pederneiras?
December has the longest days of the year in Pederneiras, with an average of 13h and 30min of daylight.
What is the average length of the day in December in Pederneiras?
The average day length in December is 13h and 29min.
What time are sunrise and sunset in December in Pederneiras?
In December, on the first day of the month, sunrise is at 05:22 and sunset at 18:46. On the last day of the month, in Pederneiras, Brazil, sunrise is at 05:34 and sunset at 19:02 -03.
How many hours of sunshine does Pederneiras have in December?
In December, the average sunshine duration is 7.9h.
What is the month with the highest UV index in Pederneiras?
January, March, August through December, with an average maximum UV index of 6, are months with the highest UV index in Pederneiras.
What is the UV index reading in December in Pederneiras?
In December, the average daily maximum UV index in Pederneiras, Brazil, is 6. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.
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
Pederneiras, Brazil
  • Average high temperature in December: 29.2°C

The warmest month (with the highest average high temperature) is October (29.8°C).
The month with the lowest average high temperature is June (23.3°C).

  • Average low temperature in December: 19.7°C

The month with the highest average low temperature is January (19.8°C).
The coldest month (with the lowest average low temperature) is June (13.7°C).

Average pressure in December
Pederneiras, Brazil
  • Average pressure in December: 1011.1mbar

The month with the highest atmospheric pressure is July (1019.2mbar).
The month with the lowest atmospheric pressure is December (1011.1mbar).

Average wind speed in December
Pederneiras, Brazil
  • Average wind speed in December: 8.4km/h

The windiest month (with the highest average wind speed) is October (10.5km/h).
The calmest month (with the lowest average wind speed) is February (7.3km/h).

Average humidity in December
Pederneiras, Brazil
  • Average humidity in December: 80%

The month with the highest relative humidity is March (86%).
The month with the lowest relative humidity is September (62%).

Average rainfall in December
Pederneiras, Brazil
  • Average rainfall in December: 161mm

The wettest month (with the highest rainfall) is January (222mm).
The driest months (with the least rainfall) are July and August (19mm).

Average rainfall days in December
Pederneiras, Brazil
  • Average rainfall days in December: 25.5 days

The month with the highest number of rainy days is January (27.3 days).
The month with the least rainy days is August (4.7 days).

Average daylight in December /
Average sunshine in December
Pederneiras, 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 months with the most sunshine are August and September (Average sunshine: 9h and 12min).
The month with the least sunshine is January (Average sunshine: 7h and 24min).

Average sunshine days in December
Pederneiras, Brazil
  • Average sunshine days in December: 3.8 days

The month with the most sunshine days is August (25.2 days).
The month with the least sunshine days is January (2.2 days).

Average UV index in December
Pederneiras, Brazil
  • Average UV index in December: 6

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

Average cloud cover in December
Pederneiras, 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 17).

Average visibility in December
Pederneiras, Brazil
  • Average visibility in December: 8km

The month with the highest visibility is August (10km).
The month with the lowest visibility is March (7km).

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