December weather forecastPompéu, Brazil

December

Weather in December

The first month of the summer, December, is also a moderately hot month in Pompéu, Brazil, with an average temperature fluctuating between 28°C (82.4°F) and 19.9°C (67.8°F).

Temperature

December's arrival brings an average high-temperature of a still moderately hot 28°C (82.4°F), demonstrating subtle variation from the preceding month. An average low-temperature of 19.9°C (67.8°F) is common in Pompéu, Brazil, during the nights of December.

Heat index

The heat index for December is evaluated at a hot 33°C (91.4°F). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
Heat index readings emphasize conditions of light breezes and shaded spots. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. The impression of weather on a person can be swayed by additional aspects, including metabolic variations, pregnancy, and activity levels. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.

Humidity

The average relative humidity in December is 84%.

Rainfall

The month with the most rainfall is December, when the rain falls for 27.5 days and typically aggregates up to 246mm (9.69") of precipitation.

Daylight

The month with the longest days in Pompéu, Brazil, is December, with an average of 13h and 18min of daylight.
On the first day of December, sunrise is at 05:13 and sunset at 18:25. On the last day of the month, sunrise is at 05:25 and sunset at 18:41 -03.

Sunshine

December has the least sunshine of the year in Pompéu, with an average of 7.2h of sunshine.

UV index

January, February, July through October and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The UV index of 6 in December translates into these instructions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.

Frequently asked questions

During December, Pompéu experiences an average high-temperature of 28°C (82.4°F) and a low-temperature of 19.9°C (67.8°F). The average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, in December is evaluated at 33°C (91.4°F).

In December, the average relative humidity is 84%.

The month with the most rainfall in Pompéu is December, when the rain falls for 27.5 days and typically aggregates up to 246mm (9.69") of precipitation.

In Pompéu, in December, it is raining for 27.5 days, with typically 246mm (9.69") of accumulated precipitation.

The month with the longest days in Pompéu is December, with an average of 13h and 18min of daylight.

In Pompéu, the average day length in December is 13h and 16min.

In December, on the first day of the month, sunrise is at 05:13 and sunset at 18:25. On the last day of the month, sunrise is at 05:25 and sunset at 18:41 -03.

With an average of 7.2h of sunshine, December has the least sunshine of the year in Pompéu, Brazil.

In December, the average sunshine duration in Pompéu is 7.2h.

January, February, July through October and December, with an average maximum UV index of 6, are months with the highest UV index.

In December, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's 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 sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Pompéu, Brazil

  • Average high temperature in December: 28°C

The warmest month (with the highest average high temperature) is September (31.3°C).
The months with the lowest average high temperature are May and June (25.3°C).

  • Average low temperature in December: 19.9°C

The months with the highest average low temperature are October and December (19.9°C).
The coldest month (with the lowest average low temperature) is July (14.4°C).

Average pressure in December
Pompéu, Brazil

  • Average pressure in December: 1012.4mbar

The month with the highest atmospheric pressure is July (1020mbar).
The month with the lowest atmospheric pressure is December (1012.4mbar).

Average wind speed in December
Pompéu, Brazil

  • Average wind speed in December: 7.1km/h

The windiest month (with the highest average wind speed) is September (9km/h).
The calmest months (with the lowest average wind speed) are March and April (6.1km/h).

Average humidity in December
Pompéu, Brazil

  • Average humidity in December: 84%

The month with the highest relative humidity is March (86%).
The month with the lowest relative humidity is September (53%).

Average rainfall in December
Pompéu, Brazil

  • Average rainfall in December: 246mm

The wettest month (with the highest rainfall) is December (246mm).
The driest month (with the least rainfall) is July (5mm).

Average rainfall days in December
Pompéu, Brazil

  • Average rainfall days in December: 27.5 days

The month with the highest number of rainy days is December (27.5 days).
The month with the least rainy days is August (3.9 days).

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

  • Average daylight in December: 13h and 18min

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 12min

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

Average sunshine days in December
Pompéu, Brazil

  • Average sunshine days in December: 3 days

The month with the most sunshine days is July (25.8 days).
The month with the least sunshine days is February (2.1 days).

Average UV index in December
Pompéu, Brazil

  • Average UV index in December: 6

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

Average cloud cover in December
Pompéu, Brazil

  • Average cloud cover in December: 52

The month with the most cloud cover is March (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 17).

Average visibility in December
Pompéu, Brazil

  • Average visibility in December: 8km

The months with the highest visibility are August and September (10km).
The month with the lowest visibility is April (7km).