December weather forecast
Senador José Porfírio, Brazil

December

Weather in December

The first month of the summer, December, is also a hot month in Senador José Porfírio, Brazil, with an average temperature varying between 23.1°C (73.6°F) and 32.3°C (90.1°F).

Temperature

Senador José Porfírio's average high-temperature in December is a still hot 32.3°C (90.1°F), indicating a subtle variation from November. In the month of December, the nighttime temperature dips to a steady average of 23.1°C (73.6°F).

Heat index

December's mean heat index is calculated to be a burning hot 45°C (113°F). Eyes open: Heat cramps and heat exhaustion are expected. Prolonged exertion could lead to heatstroke.
Data suggests that the heat index is set for environments in shade and with a light wind. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. The influence of weather is personal, differing among individuals based on variations in body mass, stature, and the degree of physical exertion. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Children often miss understanding the importance of rest and rehydration. Thirst usually appears late during dehydration - therefore, maintaining hydration, particularly during long physical activities, is essential.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. When heat surpasses the body's release mechanisms, dehydration and overheating risks become pronounced.

Humidity

The average relative humidity in December in Senador José Porfírio is 78%.

Rainfall

In Senador José Porfírio, Brazil, during December, the rain falls for 22.7 days and regularly aggregates up to 145mm (5.71") of precipitation. In Senador José Porfírio, Brazil, during the entire year, the rain falls for 230.4 days and collects up to 1395mm (54.92") of precipitation.

Daylight

With an average of 12h and 18min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 06:09 and sunset at 18:24. On the last day of December, sunrise is at 06:22 and sunset at 18:39 -03.

Sunshine

In Senador José Porfírio, the average sunshine in December is 6.8h.

UV index

February, June through October and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 7 in December transforms into the following instructions:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Limit direct sun exposure and seek shade between 10 a.m. and 4 p.m., the time of the most intense UV radiation, noting that shade structures may not provide total sun protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.

Frequently asked questions

How hot is it in Senador José Porfírio in December?
In Senador José Porfírio, in December, the average high-temperature is 32.3°C (90.1°F), and the average low-temperature is 23.1°C (73.6°F). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in December is calculated to be 45°C (113°F).
What is the average humidity in December in Senador José Porfírio?
In December, the average relative humidity in Senador José Porfírio is 78%.
How much does it rain in Senador José Porfírio in December?
In December, in Senador José Porfírio, Brazil, the rain falls for 22.7 days. Throughout December, 145mm (5.71") of precipitation is accumulated.
When are the longest days in Senador José Porfírio?
December has the longest days of the year in Senador José Porfírio, Brazil, with an average of 12h and 18min of daylight.
How many hours of daylight does Senador José Porfírio have in December?
In December, the average day length in Senador José Porfírio is 12h and 16min.
When are sunrise and sunset in December in Senador José Porfírio?
In December, on the first day of the month, sunrise is at 06:09 and sunset at 18:24. On the last day of the month, in Senador José Porfírio, Brazil, sunrise is at 06:22 and sunset at 18:39 -03.
How many hours of sunshine does Senador José Porfírio have in December?
The average sunshine duration in December in Senador José Porfírio, Brazil, is 6.8h.
What is the month with the highest UV index in Senador José Porfírio?
The months with the highest UV index in Senador José Porfírio, Brazil, are February, June through October and December, with an average maximum UV index of 7.
What is the UV index reading in December in Senador José Porfírio?
In December, the average daily maximum UV index in Senador José Porfírio, Brazil, is 7. A UV Index estimate of 6 to 7 represents a high hazard to health 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
Senador José Porfírio, Brazil
  • Average high temperature in December: 32.3°C

The warmest month (with the highest average high temperature) is October (35.1°C).
The month with the lowest average high temperature is February (29.3°C).

  • Average low temperature in December: 23.1°C

The months with the highest average low temperature are October and November (23.8°C).
The coldest month (with the lowest average low temperature) is July (22.2°C).

Average pressure in December
Senador José Porfírio, Brazil
  • Average pressure in December: 1009.2mbar

The months with the highest atmospheric pressure are June and July (1012.2mbar).
The month with the lowest atmospheric pressure is November (1008.2mbar).

Average wind speed in December
Senador José Porfírio, Brazil
  • Average wind speed in December: 6.3km/h

The windiest months (with the highest average wind speed) are September and October (6.9km/h).
The calmest month (with the lowest average wind speed) is May (4.8km/h).

Average humidity in December
Senador José Porfírio, Brazil
  • Average humidity in December: 78%

The month with the highest relative humidity is April (90%).
The months with the lowest relative humidity are September and October (68%).

Average rainfall in December
Senador José Porfírio, Brazil
  • Average rainfall in December: 145mm

The wettest month (with the highest rainfall) is April (248mm).
The driest month (with the least rainfall) is August (20mm).

Average rainfall days in December
Senador José Porfírio, Brazil
  • Average rainfall days in December: 22.7 days

The month with the highest number of rainy days is March (25.5 days).
The month with the least rainy days is August (9.8 days).

Average daylight in December /
Average sunshine in December
Senador José Porfírio, Brazil
  • Average daylight in December: 12h and 2min

The month with the longest days is December (Average daylight: 12h and 18min).
The month with the shortest days is June (Average daylight: 12h and 0min).

  • Average sunshine in December: 6h and 5min

The month with the most sunshine is August (Average sunshine: 9h and 24min).
The months with the least sunshine are February and March (Average sunshine: 5h and 36min).

Average sunshine days in December
Senador José Porfírio, Brazil
  • Average sunshine days in December: 6.3 days

The month with the most sunshine days is August (18.8 days).
The months with the least sunshine days are January and March (4.8 days).

Average UV index in December
Senador José Porfírio, Brazil
  • Average UV index in December: 7

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

Average cloud cover in December
Senador José Porfírio, Brazil
  • Average cloud cover in December: 56

The months with the most cloud cover are February, March and April (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 30).

Average visibility in December
Senador José Porfírio, Brazil
  • Average visibility in December: 8km

The months with the highest visibility are July, August, September, October and November (9km).
The months with the lowest visibility are March and April (6km).

englishespañol中文
Share