December weather forecast
Estrela d'Oeste, Brazil

December

Weather in December

The first month of the summer, December, is also a hot month in Estrela d'Oeste, Brazil, with an average temperature varying between 21.7°C (71.1°F) and 30.3°C (86.5°F).

Temperature

As Estrela d'Oeste transitions into December, the average high-temperature stands at a still hot 30.3°C (86.5°F), offering little variation from the preceding month. In December, the recorded average low-temperature is a pleasant 21.7°C (71.1°F).

Heat index

In December, the average heat index is calculated to be a fiery hot 38°C (100.4°F). More preventive actions are needed, risk of heat exhaustion and heat cramps is significant. Prolonged activity may trigger heatstroke.
One should consider that heat index numbers are for shaded settings and light wind. When under direct sunshine, the heat index may be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', gives a temperature feeling by integrating air temperature and humidity. 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. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. When there is abundant moisture in the air, the body's cooling through the evaporation process becomes less effective, leading to the sensation of overheating. When body heat isn't effectively managed, risks of dehydration and overheating amplify.

Humidity

The average relative humidity in December is 79%.

Rainfall

In December, the rain falls for 28.1 days. Throughout December, 179mm (7.05") of precipitation is accumulated. In Estrela d'Oeste, during the entire year, the rain falls for 208.7 days and collects up to 1221mm (48.07") of precipitation.

Daylight

With an average of 13h and 18min of daylight, December has the longest days of the year.
On the first day of December, sunrise is at 05:32 and sunset at 18:49. On the last day of the month, sunrise is at 05:44 and sunset at 19:05 -03.

Sunshine

The average sunshine in December in Estrela d'Oeste is 8.2h.

UV index

January through July, November and December, with an average maximum UV index of 6, are months with the lowest UV index. A UV Index estimate of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, the UV index of 6 transforms into the following advice:
Take precautions and adopt sun safety practices. Protection against sunburn is obliged. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.

Frequently asked questions

How hot is December?
The high-temperature during December is 30.3°C (86.5°F) and the low-temperature is 21.7°C (71.1°F). In December, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which represents the influence of relative humidity on air temperature, is calculated to be 38°C (100.4°F).
What is the average humidity in December?
In Estrela d'Oeste, the average relative humidity in December is 79%.
How much does it rain in December?
In Estrela d'Oeste, Brazil, in December, during 28.1 rainfall days, 179mm (7.05") of precipitation is typically accumulated.
When are the longest days?
With an average of 13h and 18min of daylight, December has the longest days of the year.
What is the average length of the day in December?
The average day length in December is 13h and 20min.
When is the sunrise / sunset in December?
On the first day of December, sunrise is at 05:32 and sunset at 18:49. On the last day of the month, sunrise is at 05:44 and sunset at 19:05 -03.
How many hours of sunshine does Estrela d'Oeste have in December?
The average sunshine duration in December is 8.2h.
What are the months with the lowest UV index?
The months with the lowest UV index are January through July, November and December, with an average maximum UV index of 6.
What is the UV index intensity in December in Estrela d'Oeste?
In Estrela d'Oeste, the average daily maximum UV index in December is 6. A UV Index value 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 - Estrela d
Average temperature in December
Estrela d'Oeste, Brazil
  • Average high temperature in December: 30.3°C

The warmest month (with the highest average high temperature) is September (33.7°C).
The month with the lowest average high temperature is June (25.9°C).

  • Average low temperature in December: 21.7°C

The month with the highest average low temperature is December (21.7°C).
The coldest month (with the lowest average low temperature) is June (16.5°C).

Average pressure in December - Estrela d
Average pressure in December
Estrela d'Oeste, Brazil
  • Average pressure in December: 1009.6mbar

The month with the highest atmospheric pressure is July (1017.5mbar).
The month with the lowest atmospheric pressure is November (1009.5mbar).

Average wind speed in December - Estrela d
Average wind speed in December
Estrela d'Oeste, Brazil
  • Average wind speed in December: 7.7km/h

The windiest month (with the highest average wind speed) is September (10.4km/h).
The calmest months (with the lowest average wind speed) are February and March (6.7km/h).

Average humidity in December - Estrela d
Average humidity in December
Estrela d'Oeste, Brazil
  • Average humidity in December: 79%

The month with the highest relative humidity is March (86%).
The months with the lowest relative humidity are August and September (47%).

Average rainfall in December - Estrela d
Average rainfall in December
Estrela d'Oeste, Brazil
  • Average rainfall in December: 179mm

The wettest month (with the highest rainfall) is January (219mm).
The driest month (with the least rainfall) is July (9mm).

Average rainfall days in December - Estrela d
Average rainfall days in December
Estrela d'Oeste, Brazil
  • Average rainfall days in December: 28.1 days

The month with the highest number of rainy days is January (29.3 days).
The month with the least rainy days is August (3.6 days).

Average daylight in December / Average sunshine in December - Estrela d
Average daylight in December /
Average sunshine in December
Estrela d'Oeste, 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: 10h and 54min).

  • Average sunshine in December: 8h and 1min

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 6min).

Average sunshine days in December - Estrela d
Average sunshine days in December
Estrela d'Oeste, Brazil
  • Average sunshine days in December: 1.6 days

The month with the most sunshine days is August (26.8 days).
The month with the least sunshine days is February (1.2 days).

Average UV index in December - Estrela d
Average UV index in December
Estrela d'Oeste, Brazil
  • Average UV index in December: 6

The months with the highest UV index are August, September and October (UV index 7).
The months with the lowest UV index are January, February, March, April, May, June, July, November and December (UV index 6).

Average cloud cover in December - Estrela d
Average cloud cover in December
Estrela d'Oeste, Brazil
  • Average cloud cover in December: 44

The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is August (Cloud cover 13).

Average visibility in December - Estrela d
Average visibility in December
Estrela d'Oeste, 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, April, May and December (8km).

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