December weather forecast
Pedras Altas, Brazil

December

Weather in December

December, the first month of the summer in Pedras Altas, is also a moderately hot month, with an average temperature varying between 28.7°C (83.7°F) and 16.5°C (61.7°F).

Temperature

The advent of December signifies a minor shift to an average high-temperature of a still moderately hot 28.7°C (83.7°F), aligning closely with November. Pedras Altas's nighttime temperatures in December reflect a stark contrast to the day's highs, falling to an average low of 16.5°C (61.7°F).

Heat index

In December, the heat index is calculated to be a tropical 32°C (89.6°F). Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.

Humidity

The least humid month is December, with an average relative humidity of 69%.

Rainfall

In Pedras Altas, in December, it is raining for 13.5 days, with typically 72mm (2.83") of accumulated precipitation. In Pedras Altas, during the entire year, the rain falls for 144.5 days and collects up to 885mm (34.84") of precipitation.

Daylight

The month with the longest days is December, with an average of 14h and 12min of daylight.
On the first day of December, sunrise is at 05:21 and sunset at 19:25. On the last day of the month, sunrise is at 05:32 and sunset at 19:43 -03.

Sunshine

With an average of 8.7h of sunshine, December has the most sunshine of the year in Pedras Altas.

UV index

The months with the highest UV index are January through March and December, with an average maximum UV index of 6. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In December, the maximum UV index of 6 translates into these guidelines:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.

Frequently asked questions

Is it hot during December?
December temperatures vary between a high-temperature of 28.7°C (83.7°F) and a low-temperature of 16.5°C (61.7°F). In December, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is calculated to be 32°C (89.6°F).
What is the least humid month?
With an average relative humidity of 69%, December is the least humid month.
What is the average humidity in December?
In Pedras Altas, the average relative humidity in December is 69%.
How many days does it rain in December?
In Pedras Altas, in December, during 13.5 rainfall days, 72mm (2.83") of precipitation is typically accumulated.
When are the longest days?
December has the longest days of the year, with an average of 14h and 12min of daylight.
What is the average length of the day in December?
In Pedras Altas, the average day length in December is 14h and 11min.
What time are sunrise and sunset in December?
On the first day of December, sunrise is at 05:21 and sunset at 19:25. On the last day of the month, sunrise is at 05:32 and sunset at 19:43 -03.
What month has the most sunshine?
December has the most sunshine of the year, with an average of 8.7h of sunshine.
How long on average sun shines in December?
The average sunshine duration in December is 8.7h.
What is the month with the highest UV index?
The months with the highest UV index are January through March and December, with an average maximum UV index of 6.
What is the UV index intensity in December?
In Pedras Altas, the average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high health vulnerability 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 - Pedras Altas, Brazil
Average temperature in December
Pedras Altas, Brazil
  • Average high temperature in December: 28.7°C

The warmest month (with the highest average high temperature) is January (29.7°C).
The month with the lowest average high temperature is July (16.3°C).

  • Average low temperature in December: 16.5°C

The month with the highest average low temperature is January (18.3°C).
The coldest month (with the lowest average low temperature) is July (7.8°C).

Average pressure in December - Pedras Altas, Brazil
Average pressure in December
Pedras Altas, Brazil
  • Average pressure in December: 1010.8mbar

The month with the highest atmospheric pressure is July (1019.4mbar).
The month with the lowest atmospheric pressure is December (1010.8mbar).

Average wind speed in December - Pedras Altas, Brazil
Average wind speed in December
Pedras Altas, Brazil
  • Average wind speed in December: 15.1km/h

The windiest months (with the highest average wind speed) are September and October (16.4km/h).
The calmest month (with the lowest average wind speed) is April (13.6km/h).

Average humidity in December - Pedras Altas, Brazil
Average humidity in December
Pedras Altas, Brazil
  • Average humidity in December: 69%

The months with the highest relative humidity are May, June and July (83%).
The month with the lowest relative humidity is December (69%).

Average rainfall in December - Pedras Altas, Brazil
Average rainfall in December
Pedras Altas, Brazil
  • Average rainfall in December: 72mm

The wettest month (with the highest rainfall) is January (104mm).
The driest month (with the least rainfall) is April (51mm).

Average rainfall days in December - Pedras Altas, Brazil
Average rainfall days in December
Pedras Altas, Brazil
  • Average rainfall days in December: 13.5 days

The month with the highest number of rainy days is January (14.5 days).
The month with the least rainy days is July (10.7 days).

Average daylight in December / Average sunshine in December - Pedras Altas, Brazil
Average daylight in December /
Average sunshine in December
Pedras Altas, Brazil
  • Average daylight in December: 14h and 1min

The month with the longest days is December (Average daylight: 14h and 12min).
The month with the shortest days is June (Average daylight: 10h and 6min).

  • Average sunshine in December: 8h and 4min

The month with the most sunshine is December (Average sunshine: 8h and 42min).
The month with the least sunshine is May (Average sunshine: 7h and 12min).

Average sunshine days in December - Pedras Altas, Brazil
Average sunshine days in December
Pedras Altas, Brazil
  • Average sunshine days in December: 15.9 days

The month with the most sunshine days is July (19 days).
The month with the least sunshine days is February (14.7 days).

Average UV index in December - Pedras Altas, Brazil
Average UV index in December
Pedras Altas, Brazil
  • Average UV index in December: 6

The months with the highest UV index are January, February, March and December (UV index 6).
The month with the lowest UV index is May (UV index 3).

Average cloud cover in December - Pedras Altas, Brazil
Average cloud cover in December
Pedras Altas, Brazil
  • Average cloud cover in December: 27

The month with the most cloud cover is May (Cloud cover 39).
The month with the least cloud cover is December (Cloud cover 27).

Average visibility in December - Pedras Altas, Brazil
Average visibility in December
Pedras Altas, Brazil
  • Average visibility in December: 10km

The month with the highest visibility is December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October and November (9km).

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