December weather forecastIúna, Brazil

December

Weather in December

December, the first month of the summer in Iúna, is also a moderately hot month, with an average temperature ranging between max 25°C (77°F) and min 17.6°C (63.7°F).

Temperature

With December's advent, Iúna sees an average high-temperature of a still moderately hot 25°C (77°F), subtly shifted from November's 24.4°C (75.9°F). The average low-temperature in Iúna during December nights is a refreshing 17.6°C (63.7°F).

Humidity

The months with the highest humidity in Iúna, Brazil, are March, April and December, with an average relative humidity of 90%.

Rainfall

The month with the most rainfall is December, when the rain falls for 24.2 days and typically aggregates up to 140mm (5.51") of precipitation.

Daylight

With an average of 13h and 18min of daylight, December has the longest days of the year.
On the first day of December in Iúna, Brazil, sunrise is at 04:57 and sunset at 18:13. On the last day of the month, sunrise is at 05:09 and sunset at 18:29 -03.

Sunshine

In December, the average sunshine in Iúna is 6.3h.

UV index

The months with the highest UV index in Iúna are January through April, June through October and December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.
Note: The maximum daily UV index of 5 in December interprets into the following recommendations:
Guard yourself - Avoiding sunburn is suggested. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

Frequently asked questions

The average high-temperature and low-temperature in Iúna during December are 25°C (77°F) and 17.6°C (63.7°F) respectively.

The months with the highest humidity are March, April and December, with an average relative humidity of 90%.

In December, the average relative humidity in Iúna, Brazil, is 90%.

December is the month with the most rainfall in Iúna, Brazil. Rain falls for 24.2 days and accumulates 140mm (5.51") of precipitation.

In Iúna, Brazil, during December, the rain falls for 24.2 days and regularly aggregates up to 140mm (5.51") of precipitation.

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

In December, the average day length is 13h and 20min.

On the first day of December in Iúna, sunrise is at 04:57 and sunset at 18:13. On the last day of the month, sunrise is at 05:09 and sunset at 18:29 -03.

In December, the average sunshine duration in Iúna is 6.3h.

The months with the highest UV index are January through April, June through October and December, with an average maximum UV index of 5.

In December, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health threat 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
Iúna, Brazil

  • Average high temperature in December: 25°C

The warmest month (with the highest average high temperature) is February (25.8°C).
The month with the lowest average high temperature is June (21.6°C).

  • Average low temperature in December: 17.6°C

The month with the highest average low temperature is January (17.7°C).
The coldest month (with the lowest average low temperature) is July (12.3°C).

Average pressure in December
Iúna, Brazil

  • Average pressure in December: 1012.8mbar

The month with the highest atmospheric pressure is July (1021.1mbar).
The month with the lowest atmospheric pressure is December (1012.8mbar).

Average wind speed in December
Iúna, Brazil

  • Average wind speed in December: 7.1km/h

The windiest month (with the highest average wind speed) is October (8km/h).
The calmest months (with the lowest average wind speed) are April and May (5.5km/h).

Average humidity in December
Iúna, Brazil

  • Average humidity in December: 90%

The months with the highest relative humidity are March, April and December (90%).
The month with the lowest relative humidity is September (77%).

Average rainfall in December
Iúna, Brazil

  • Average rainfall in December: 140mm

The wettest month (with the highest rainfall) is December (140mm).
The driest month (with the least rainfall) is July (15mm).

Average rainfall days in December
Iúna, Brazil

  • Average rainfall days in December: 24.2 days

The month with the highest number of rainy days is March (25 days).
The month with the least rainy days is August (10.3 days).

Average daylight in December /
Average sunshine in December
Iúna, 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 18min

The month with the most sunshine is September (Average sunshine: 8h and 12min).
The month with the least sunshine is November (Average sunshine: 6h and 6min).

Average sunshine days in December
Iúna, Brazil

  • Average sunshine days in December: 4.4 days

The month with the most sunshine days is August (16.8 days).
The month with the least sunshine days is December (4.4 days).

Average UV index in December
Iúna, Brazil

  • Average UV index in December: 5

The months with the highest UV index are January, February, March, April, June, July, August, September, October and December (UV index 5).
The months with the lowest UV index are May and November (UV index 4).

Average cloud cover in December
Iúna, Brazil

  • Average cloud cover in December: 68

The months with the most cloud cover are November and December (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 42).

Average visibility in December
Iúna, Brazil

  • Average visibility in December: 6km

The months with the highest visibility are August, September and October (8km).
The months with the lowest visibility are January, February, March, April, May, June and December (6km).