December weather forecastMateus Leme, Brazil

December

Weather in December

The first month of the summer, December, is still a warm month in Mateus Leme, Brazil, with temperature in the range of an average low of 17.9°C (64.2°F) and an average high of 25.8°C (78.4°F).

Temperature

The advent of December reveals an average high-temperature of a still moderately hot 25.8°C (78.4°F), showing minimal difference from the prior month. Mateus Leme experiences a mean temperature of 17.9°C (64.2°F) during December nights.

Humidity

The average relative humidity in December in Mateus Leme is 88%.

Rainfall

In Mateus Leme, in December, it is raining for 29.6 days, with typically 247mm (9.72") of accumulated precipitation. Throughout the year, in Mateus Leme, there are 227.6 rainfall days, and 1519mm (59.8") of precipitation is accumulated.

Daylight

The month with the longest days in Mateus Leme is December, with an average of 13h and 18min of daylight.
On the first day of the month, sunrise is at 05:09 and sunset at 18:24. On the last day of December, in Mateus Leme, sunrise is at 05:21 and sunset at 18:40 -03.

Sunshine

December has the least sunshine of the year, with an average of 6.5h of sunshine.

UV index

The months with the lowest UV index in Mateus Leme are January through July, September through December, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.
Note: In December, a daily maximum UV index of 5 leads to the following instructions:
Be vigilant - Preventing sunburn is recommended. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.

Frequently asked questions

The high-temperature, in December, in Mateus Leme, records 25.8°C (78.4°F), while the low-temperature is 17.9°C (64.2°F). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in October is appraised at 31°C (87.8°F).

In Mateus Leme, the average relative humidity in December is 88%.

In Mateus Leme, Brazil, during December, the rain falls for 29.6 days and regularly aggregates up to 247mm (9.72") of precipitation.

December has the longest days of the year, with an average of 13h and 18min of daylight.

The average day length in December in Mateus Leme is 13h and 19min.

In December, on the first day of the month, sunrise is at 05:09 and sunset at 18:24. On the last day of the month, in Mateus Leme, sunrise is at 05:21 and sunset at 18:40 -03.

With an average of 6.5h of sunshine, December has the least sunshine of the year.

The average sunshine duration in December in Mateus Leme is 6.5h.

The months with the lowest UV index in Mateus Leme are January through July, September through December, with an average maximum UV index of 5.

The average daily maximum UV index in December in Mateus Leme, Brazil, is 5. A UV Index reading of 3 to 5 represents a medium 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
Mateus Leme, Brazil

  • Average high temperature in December: 25.8°C

The warmest month (with the highest average high temperature) is September (28.2°C).
The month with the lowest average high temperature is June (22.8°C).

  • Average low temperature in December: 17.9°C

The month with the highest average low temperature is December (17.9°C).
The coldest month (with the lowest average low temperature) is July (12.6°C).

Average pressure in December
Mateus Leme, Brazil

  • Average pressure in December: 1012.9mbar

The month with the highest atmospheric pressure is July (1020.7mbar).
The month with the lowest atmospheric pressure is December (1012.9mbar).

Average wind speed in December
Mateus Leme, Brazil

  • Average wind speed in December: 7.4km/h

The windiest month (with the highest average wind speed) is September (9.1km/h).
The calmest months (with the lowest average wind speed) are March, April and May (6.7km/h).

Average humidity in December
Mateus Leme, Brazil

  • Average humidity in December: 88%

The month with the highest relative humidity is March (90%).
The month with the lowest relative humidity is September (64%).

Average rainfall in December
Mateus Leme, Brazil

  • Average rainfall in December: 247mm

The wettest month (with the highest rainfall) is November (249mm).
The driest month (with the least rainfall) is July (10mm).

Average rainfall days in December
Mateus Leme, Brazil

  • Average rainfall days in December: 29.6 days

The month with the highest number of rainy days is December (29.6 days).
The month with the least rainy days is August (5.2 days).

Average daylight in December /
Average sunshine in December
Mateus Leme, 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: 6h and 30min

The month with the most sunshine is September (Average sunshine: 9h and 18min).
The month with the least sunshine is December (Average sunshine: 6h and 30min).

Average sunshine days in December
Mateus Leme, Brazil

  • Average sunshine days in December: 1.2 days

The month with the most sunshine days is August (23.9 days).
The month with the least sunshine days is December (1.2 days).

Average UV index in December
Mateus Leme, Brazil

  • Average UV index in December: 5

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

Average cloud cover in December
Mateus Leme, Brazil

  • Average cloud cover in December: 63

The month with the most cloud cover is December (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 22).

Average visibility in December
Mateus Leme, Brazil

  • Average visibility in December: 7km

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