December weather forecast
Sacramento, Brazil

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Weather in December

December, the first month of the summer in Sacramento, is still a warm month, with an average temperature varying between 19.6°C (67.3°F) and 27.8°C (82°F).

Temperature

December's onset brings an average high-temperature of a still warm 27.8°C (82°F), showing a minute difference from November's 28.4°C (83.1°F). During December, the temperature is averaged to a low of 19.6°C (67.3°F) at night.

Heat index

The average heat index in December is evaluated at a hot 32°C (89.6°F). Exposure and extended activity could potentially cause a state of fatigue and lead to heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for 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.

Humidity

In Sacramento, the average relative humidity in December is 85%.

Rainfall

In Sacramento, during December, the rain falls for 30.6 days and regularly aggregates up to 225mm (8.86") of precipitation. Throughout the year, there are 226.9 rainfall days, and 1473mm (57.99") of precipitation is accumulated.

Daylight

The month with the longest days is December, with an average of 13h and 18min of daylight.
On the first day of December, sunrise is at 05:21 and sunset at 18:36. On the last day of the month, sunrise is at 05:33 and sunset at 18:52 -03.

Sunshine

The average sunshine in December in Sacramento, Brazil, is 7.6h.

UV index

January through June, November and December, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for average individuals.
Note: A daily maximum UV index of 5 in December translates into the following instructions:
Guard yourself - Avoiding sunburn is suggested. For skin protection, it's recommended to minimize Sun exposure during its peak hours around midday. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
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Frequently asked questions

What is the average December temperature in Sacramento?

The average high-temperature and low-temperature in Sacramento during December are 27.8°C (82°F) and 19.6°C (67.3°F) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in December is evaluated at 32°C (89.6°F).

What is the average humidity in December in Sacramento?

In December, the average relative humidity in Sacramento, Brazil, is 85%.

How many days does it rain in December in Sacramento?

In Sacramento, Brazil, in December, during 30.6 rainfall days, 225mm (8.86") of precipitation is typically accumulated.

When are the longest days in Sacramento?

With an average of 13h and 18min of daylight, December has the longest days of the year in Sacramento, Brazil.

What is the average length of the day in December in Sacramento?

In Sacramento, Brazil, the average day length in December is 13h and 19min.

When are sunrise and sunset in December in Sacramento?

In December, on the first day of the month, sunrise is at 05:21 and sunset at 18:36. On the last day of the month, sunrise is at 05:33 and sunset at 18:52 -03.

How many hours of sunshine does Sacramento have in December?

The average sunshine duration in December in Sacramento, Brazil, is 7.6h.

What are the months with the lowest UV index in Sacramento?

The months with the lowest UV index in Sacramento, Brazil, are January through June, November and December, with an average maximum UV index of 5.

What is the UV index reading in December in Sacramento?

In December, the average daily maximum UV index is 5. A UV Index reading of 3 to 5 represents a medium health risk from exposure to the Sun's UV radiation.

Average temperature in December
Sacramento, Brazil

Average temperature in December - Sacramento, Brazil
  • Average high temperature in December: 27.8°C

The warmest month (with the highest average high temperature) is September (31.7°C).
The months with the lowest average high temperature are May and June (24.8°C).

  • Average low temperature in December: 19.6°C

The month with the highest average low temperature is October (20°C).
The coldest month (with the lowest average low temperature) is May (15°C).

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Average pressure in December
Sacramento, Brazil

Average pressure in December - Sacramento, Brazil
  • Average pressure in December: 1011.1mbar

The month with the highest atmospheric pressure is July (1018.8mbar).
The months with the lowest atmospheric pressure are November and December (1011.1mbar).

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Average wind speed in December
Sacramento, Brazil

Average wind speed in December - Sacramento, Brazil
  • Average wind speed in December: 7.6km/h

The windiest month (with the highest average wind speed) is August (10.3km/h).
The calmest month (with the lowest average wind speed) is March (6.7km/h).

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Average humidity in December
Sacramento, Brazil

Average humidity in December - Sacramento, Brazil
  • Average humidity in December: 85%

The month with the highest relative humidity is March (89%).
The month with the lowest relative humidity is September (48%).

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Average rainfall in December
Sacramento, Brazil

Average rainfall in December - Sacramento, Brazil
  • Average rainfall in December: 225mm

The wettest month (with the highest rainfall) is November (240mm).
The driest month (with the least rainfall) is August (6mm).

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Average rainfall days in December
Sacramento, Brazil

Average rainfall days in December - Sacramento, Brazil
  • Average rainfall days in December: 30.6 days

The month with the highest number of rainy days is December (30.6 days).
The month with the least rainy days is August (3.3 days).

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Average daylight in December /
Average sunshine in December
Sacramento, Brazil

Average daylight in December / Average sunshine in December - Sacramento, Brazil
  • Average daylight in December: 13h and 2min

The month with the longest days is December (Average daylight: 13h and 18min).
The month with the shortest days is June (Average daylight: 11h and 0min).

  • Average sunshine in December: 7h and 4min

The months with the most sunshine are August and September (Average sunshine: 9h and 30min).
The month with the least sunshine is January (Average sunshine: 7h and 12min).

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Average sunshine days in December
Sacramento, Brazil

Average sunshine days in December - Sacramento, Brazil
  • Average sunshine days in December: 0.3 days

The month with the most sunshine days is August (26.9 days).
The month with the least sunshine days is December (0.3 days).

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Average UV index in December
Sacramento, Brazil

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

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

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Average cloud cover in December
Sacramento, Brazil

Average cloud cover in December - Sacramento, Brazil
  • Average cloud cover in December: 52

The months with the most cloud cover are January and March (Cloud cover 54).
The month with the least cloud cover is August (Cloud cover 13).

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Average visibility in December
Sacramento, Brazil

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

The months with the highest visibility are July, August and September (10km).
The months with the lowest visibility are January, February, March and April (7km).

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Sacramento, Brazil

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