December weather forecastMonte Sião, Brazil

December

Weather in December

December, the first month of the summer in Monte Sião, is also a moderately hot month, with an average temperature ranging between max 26.8°C (80.2°F) and min 17.5°C (63.5°F).

Temperature

December's commencement is accompanied by an average high-temperature of a still moderately hot 26.8°C (80.2°F), diverging marginally from November's 26.5°C (79.7°F). Throughout December, the temperature falls to an average low of 17.5°C (63.5°F).

Humidity

The average relative humidity in December in Monte Sião is 84%.

Rainfall

In Monte Sião, in December, it is raining for 23.8 days, with typically 113mm (4.45") of accumulated precipitation. Throughout the year, in Monte Sião, there are 199.3 rainfall days, and 850mm (33.46") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 13h and 30min of daylight.
On the first day of December in Monte Sião, sunrise is at 05:13 and sunset at 18:37. On the last day of the month, sunrise is at 05:25 and sunset at 18:54 -03.

Sunshine

The average sunshine in December in Monte Sião is 7.8h.

UV index

January, February, October through December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: In December, a daily UV index of 6 turns into the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.

Frequently asked questions

In December, the average high-temperature and low-temperature are 26.8°C (80.2°F) and 17.5°C (63.5°F) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, in October is computed to be 30°C (86°F).

In December, the average relative humidity is 84%.

In December, in Monte Sião, Brazil, the rain falls for 23.8 days. Throughout December, 113mm (4.45") of precipitation is accumulated.

The month with the longest days is December, with an average of 13h and 30min of daylight.

In Monte Sião, the average day length in December is 13h and 29min.

In December, on the first day of the month, sunrise is at 05:13 and sunset at 18:37. On the last day of the month, in Monte Sião, sunrise is at 05:25 and sunset at 18:54 -03.

In December, the average sunshine duration in Monte Sião is 7.8h.

January, February, October through December, with an average maximum UV index of 6, are months with the highest UV index in Monte Sião, Brazil.

The average daily maximum UV index in December is 6. A UV Index reading of 6 to 7 represents a high health risk 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
Monte Sião, Brazil

  • Average high temperature in December: 26.8°C

The warmest month (with the highest average high temperature) is October (27.4°C).
The month with the lowest average high temperature is June (21.8°C).

  • Average low temperature in December: 17.5°C

The months with the highest average low temperature are January and December (17.5°C).
The coldest month (with the lowest average low temperature) is July (11.6°C).

Average pressure in December
Monte Sião, Brazil

  • Average pressure in December: 1012.1mbar

The month with the highest atmospheric pressure is July (1020.4mbar).
The month with the lowest atmospheric pressure is December (1012.1mbar).

Average wind speed in December
Monte Sião, Brazil

  • Average wind speed in December: 7.7km/h

The windiest month (with the highest average wind speed) is September (9.3km/h).
The calmest month (with the lowest average wind speed) is March (7.1km/h).

Average humidity in December
Monte Sião, Brazil

  • Average humidity in December: 84%

The month with the highest relative humidity is March (88%).
The month with the lowest relative humidity is September (67%).

Average rainfall in December
Monte Sião, Brazil

  • Average rainfall in December: 113mm

The wettest month (with the highest rainfall) is January (164mm).
The driest month (with the least rainfall) is August (15mm).

Average rainfall days in December
Monte Sião, Brazil

  • Average rainfall days in December: 23.8 days

The month with the highest number of rainy days is January (26.6 days).
The month with the least rainy days is August (6.1 days).

Average daylight in December /
Average sunshine in December
Monte Sião, Brazil

  • Average daylight in December: 13h and 30min

The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 48min).

  • Average sunshine in December: 7h and 48min

The month with the most sunshine is September (Average sunshine: 9h and 12min).
The month with the least sunshine is January (Average sunshine: 7h and 24min).

Average sunshine days in December
Monte Sião, Brazil

  • Average sunshine days in December: 6.5 days

The month with the most sunshine days is August (23.8 days).
The month with the least sunshine days is February (3.3 days).

Average UV index in December
Monte Sião, Brazil

  • Average UV index in December: 6

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

Average cloud cover in December
Monte Sião, Brazil

  • Average cloud cover in December: 50

The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is August (Cloud cover 19).

Average visibility in December
Monte Sião, Brazil

  • Average visibility in December: 8km

The months with the highest visibility are July, August, September and October (9km).
The months with the lowest visibility are January, February, March, April and May (7km).