December weather forecastMarechal Floriano, Brazil

December

Weather in December

December, the first month of the summer in Marechal Floriano, is also a moderately hot month, with an average temperature ranging between min 21.4°C (70.5°F) and max 27.8°C (82°F).

Temperature

Marechal Floriano registers an average high-temperature of a still moderately hot 27.8°C (82°F) at the commencement of December, closely related to the preceding month. Marechal Floriano records a mean low-temperature of 21.4°C (70.5°F) in December.

Heat index

The heat index value during December is estimated at a hot 32°C (89.6°F). Extended exposure and activity might lead to tiredness, potentially resulting in heat cramps.
Always consider that heat index estimations are for light winds and places in the shade. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'real feel' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.

Humidity

April, November and December, with an average relative humidity of 84%, are the most humid months in Marechal Floriano.

Rainfall

In Marechal Floriano, Brazil, in December, it is raining for 20.1 days, with typically 132mm (5.2") of accumulated precipitation. Throughout the year, in Marechal Floriano, Brazil, there are 185.4 rainfall days, and 776mm (30.55") of precipitation is accumulated.

Daylight

December has the longest days of the year in Marechal Floriano, Brazil, with an average of 13h and 18min of daylight.
On the first day of the month, sunrise is at 04:53 and sunset at 18:10. On the last day of December, sunrise is at 05:05 and sunset at 18:26 -03.

Sunshine

The average sunshine in December is 8.9h.

UV index

The months with the highest UV index in Marechal Floriano are January through May, August, October through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high threat to health from unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 6 in December translates into this advice:
Guard against overexposure. Protection from sun-induced harm is essential. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.

Frequently asked questions

An average high-temperature, in December, in Marechal Floriano, is 27.8°C (82°F) and the average low-temperature is 21.4°C (70.5°F). In December, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is estimated at 32°C (89.6°F).

April, November and December, with an average relative humidity of 84%, are most humid months.

In December, the average relative humidity in Marechal Floriano, Brazil, is 84%.

In December, in Marechal Floriano, Brazil, the rain falls for 20.1 days. Throughout December, 132mm (5.2") of precipitation is accumulated.

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

In Marechal Floriano, Brazil, the average day length in December is 13h and 21min.

In December, on the first day of the month, sunrise is at 04:53 and sunset at 18:10. On the last day of the month, sunrise is at 05:05 and sunset at 18:26 -03.

In December, the average sunshine duration in Marechal Floriano, Brazil, is 8.9h.

January through May, August, October through December, with an average maximum UV index of 6, are months with the highest UV index in Marechal Floriano, Brazil.

The average daily maximum UV index in December is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from unsafe exposure to Sun's UV rays.
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
Marechal Floriano, Brazil

  • Average high temperature in December: 27.8°C

The warmest month (with the highest average high temperature) is February (29.1°C).
The month with the lowest average high temperature is July (24.3°C).

  • Average low temperature in December: 21.4°C

The months with the highest average low temperature are January and February (21.7°C).
The coldest month (with the lowest average low temperature) is August (17.2°C).

Average pressure in December
Marechal Floriano, Brazil

  • Average pressure in December: 1012.7mbar

The month with the highest atmospheric pressure is July (1020.8mbar).
The month with the lowest atmospheric pressure is December (1012.7mbar).

Average wind speed in December
Marechal Floriano, Brazil

  • Average wind speed in December: 11.4km/h

The windiest month (with the highest average wind speed) is September (12.5km/h).
The calmest months (with the lowest average wind speed) are April and May (8.9km/h).

Average humidity in December
Marechal Floriano, Brazil

  • Average humidity in December: 84%

The months with the highest relative humidity are April, November and December (84%).
The month with the lowest relative humidity is September (79%).

Average rainfall in December
Marechal Floriano, Brazil

  • Average rainfall in December: 132mm

The wettest month (with the highest rainfall) is November (166mm).
The driest months (with the least rainfall) are June and July (23mm).

Average rainfall days in December
Marechal Floriano, Brazil

  • Average rainfall days in December: 20.1 days

The month with the highest number of rainy days is November (21.3 days).
The month with the least rainy days is July (11.6 days).

Average daylight in December /
Average sunshine in December
Marechal Floriano, 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: 10h and 54min).

  • Average sunshine in December: 8h and 54min

The month with the most sunshine is February (Average sunshine: 9h and 12min).
The month with the least sunshine is October (Average sunshine: 7h and 6min).

Average sunshine days in December
Marechal Floriano, Brazil

  • Average sunshine days in December: 8.4 days

The months with the most sunshine days are May and July (16.3 days).
The month with the least sunshine days is November (5.6 days).

Average UV index in December
Marechal Floriano, Brazil

  • Average UV index in December: 6

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

Average cloud cover in December
Marechal Floriano, Brazil

  • Average cloud cover in December: 43

The month with the most cloud cover is November (Cloud cover 52).
The month with the least cloud cover is February (Cloud cover 29).

Average visibility in December
Marechal Floriano, Brazil

  • Average visibility in December: 9km

The months with the highest visibility are February, July, August and September (10km).
The months with the lowest visibility are January, March, April, May, June, October, November and December (9km).