December weather forecastGuarda-Mor, Brazil

December

Weather in December

The first month of the summer, December, is also a moderately hot month in Guarda-Mor, Brazil, with an average temperature varying between 20.1°C (68.2°F) and 28°C (82.4°F).

Temperature

As December takes its course, Guarda-Mor's average high-temperature registers at a still moderately hot 28°C (82.4°F), closely aligning with the preceding month. Guarda-Mor experiences an average nighttime temperature of 20.1°C (68.2°F) in the month of December.

Heat index

The heat index value during December is computed to be a hot 33°C (91.4°F). Undertake enhanced precautions, heat exhaustion and heat cramps are possible risks. Continuous activity could trigger heatstroke.
When referencing the heat index, its values are suitable for shady environments and light breezes. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', combines both the air temperature and the humidity level to give a perceived human temperature. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct sun rays have a notable impact on perceived temperature, which can raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young people are generally more susceptible than adults because they perspire less. Furthermore, their proportionally larger skin surface to their petite bodies and the increased heat output from their actions add to the risk.

Humidity

In Guarda-Mor, the average relative humidity in December is 84%.

Rainfall

In Guarda-Mor, in December, it is raining for 29.1 days, with typically 250mm (9.84") of accumulated precipitation. In Guarda-Mor, during the entire year, the rain falls for 217.7 days and collects up to 1477mm (58.15") of precipitation.

Daylight

December has the longest days of the year in Guarda-Mor, with an average of 13h and 12min of daylight.
On the first day of the month, sunrise is at 05:24 and sunset at 18:31. On the last day of December, in Guarda-Mor, sunrise is at 05:36 and sunset at 18:46 -03.

Sunshine

March and December, with an average of 7.3h of sunshine, are months with the least sunshine.

UV index

The months with the lowest UV index are April through July, November and December, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the average person.
Note: A maximum high UV index of 5 in December translates into the following recommendations:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.

Updated: Feb 2, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

The average high-temperature and low-temperature in Guarda-Mor, Brazil, during December are 28°C (82.4°F) and 20.1°C (68.2°F) respectively. In December, the average heat index (a.k.a. 'felt air temperature', 'feels like'), which represents the influence of relative humidity on air temperature, is computed to be 33°C (91.4°F).

In December, the average relative humidity is 84%.

In Guarda-Mor, in December, during 29.1 rainfall days, 250mm (9.84") of precipitation is typically accumulated.

The month with the longest days in Guarda-Mor is December, with an average of 13h and 12min of daylight.

In Guarda-Mor, the average day length in December is 13h and 10min.

In December, on the first day of the month, sunrise is at 05:24 and sunset at 18:31. On the last day of the month, in Guarda-Mor, Brazil, sunrise is at 05:36 and sunset at 18:46 -03.

March and December, with an average of 7.3h of sunshine, are months with the least sunshine in Guarda-Mor.

In Guarda-Mor, the average sunshine duration in December is 7.3h.

The months with the lowest UV index are April through July, November and December, with an average maximum UV index of 5.

The average daily maximum UV index in December is 5. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

28.1°C

28°C

27.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

8.1km/h

7.3km/h

7.1km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

1.5

2.8

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Guarda-Mor, Brazil

Average high temperature in December: 28°C

The warmest month (with the highest average high temperature) is September (31.8°C).
The months with the lowest average high temperature are May and June (25.4°C).

Average low temperature in December: 20.1°C

The month with the highest average low temperature is October (20.5°C).
The coldest month (with the lowest average low temperature) is July (14.4°C).

Average pressure in December
Guarda-Mor, Brazil

Average pressure in December: 1011.6mbar

The month with the highest atmospheric pressure is July (1018.8mbar).
The month with the lowest atmospheric pressure is November (1011.4mbar).

Average wind speed in December
Guarda-Mor, Brazil

Average wind speed in December: 6.6km/h

The windiest month (with the highest average wind speed) is September (8.4km/h).
The calmest month (with the lowest average wind speed) is March (5.7km/h).

Average humidity in December
Guarda-Mor, Brazil

Average humidity in December: 84%

The month with the highest relative humidity is March (87%).
The month with the lowest relative humidity is September (47%).

Average rainfall in December
Guarda-Mor, Brazil

Average rainfall in December: 250mm

The wettest month (with the highest rainfall) is November (260mm).
The driest month (with the least rainfall) is July (2mm).

Average rainfall days in December
Guarda-Mor, Brazil

Average rainfall days in December: 29.1 days

The months with the highest number of rainy days are March and December (29.1 days).
The month with the least rainy days is August (2.3 days).

Average daylight in December /
Average sunshine in December
Guarda-Mor, Brazil

Average daylight in December: 13h and 12min

The month with the longest days is December (Average daylight: 13h and 12min).
The month with the shortest days is June (Average daylight: 11h and 6min).

Average sunshine in December: 7h and 18min

The month with the most sunshine is September (Average sunshine: 9h and 42min).
The months with the least sunshine are March and December (Average sunshine: 7h and 18min).

Average sunshine days in December
Guarda-Mor, Brazil

Average sunshine days in December: 1.5 days

The month with the most sunshine days is August (27.2 days).
The month with the least sunshine days is March (0.8 days).

Average UV index in December
Guarda-Mor, Brazil

Average UV index in December: 5

The month with the highest UV index is September (UV index 7).
The months with the lowest UV index are April, May, June, July, November and December (UV index 5).