December weather forecastIrajuba, Brazil

December

Weather in December

The first month of the summer, December, is still a warm month in Irajuba, Brazil, with temperature in the range of an average low of 19.1°C (66.4°F) and an average high of 28.3°C (82.9°F).

Temperature

December's onset sees an average high-temperature of a still moderately hot 28.3°C (82.9°F), exhibiting a slight fluctuation from the previous month. Irajuba's nighttime temperature during December is consistently averaged at a refreshing 19.1°C (66.4°F).

Heat index

For most parts of December, the heat index is calculated to be a tropical 33°C (91.4°F). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.
Note that heat index values are valued for light wind and location in the shade. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a numerical representation of warmth when taking temperature and moisture levels into account. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Kids are usually in more danger than grown-ups as they tend to sweat less. Plus, their bigger skin surface in relation to their small frames and increased heat generation due to their activity level make them more susceptible.

Humidity

The months with the lowest humidity are February and December, with an average relative humidity of 82%.

Rainfall

In Irajuba, in December, it is raining for 23.3 days, with typically 106mm (4.17") of accumulated precipitation. Throughout the year, there are 276.4 rainfall days, and 782mm (30.79") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 12h and 54min of daylight.
On the first day of December, sunrise is at 05:04 and sunset at 17:55. On the last day of the month, sunrise is at 05:16 and sunset at 18:10 -03.

Sunshine

The average sunshine in December is 7h.

UV index

The average daily maximum UV index in December is 5. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for the average person.
Note: A daily maximum UV index of 5 in December translates into the following instructions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. 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.

Frequently asked questions

During December, Irajuba experiences an average high-temperature of 28.3°C (82.9°F) and a low-temperature of 19.1°C (66.4°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in December is calculated to be 33°C (91.4°F).

February and December, with an average relative humidity of 82%, are the least humid months.

The average relative humidity in December is 82%.

In Irajuba, during December, the rain falls for 23.3 days and regularly aggregates up to 106mm (4.17") of precipitation.

The month with the longest days is December, with an average of 12h and 54min of daylight.

The average day length in December is 12h and 53min.

On the first day of December in Irajuba, sunrise is at 05:04 and sunset at 17:55. On the last day of the month, sunrise is at 05:16 and sunset at 18:10 -03.

The average sunshine duration in December is 7h.

The average daily maximum UV index in December in Irajuba is 5. A UV Index of 3 to 5 symbolizes a medium hazard to health from unprotected exposure to 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
Irajuba, Brazil

  • Average high temperature in December: 28.3°C

The warmest month (with the highest average high temperature) is March (28.7°C).
The month with the lowest average high temperature is July (23.2°C).

  • Average low temperature in December: 19.1°C

The month with the highest average low temperature is March (19.4°C).
The coldest month (with the lowest average low temperature) is August (15.7°C).

Average pressure in December
Irajuba, Brazil

  • Average pressure in December: 1013.1mbar

The month with the highest atmospheric pressure is July (1019.4mbar).
The month with the lowest atmospheric pressure is December (1013.1mbar).

Average wind speed in December
Irajuba, Brazil

  • Average wind speed in December: 11.4km/h

The windiest months (with the highest average wind speed) are September and October (13.1km/h).
The calmest month (with the lowest average wind speed) is April (10km/h).

Average humidity in December
Irajuba, Brazil

  • Average humidity in December: 82%

The months with the highest relative humidity are June and July (89%).
The months with the lowest relative humidity are February and December (82%).

Average rainfall in December
Irajuba, Brazil

  • Average rainfall in December: 106mm

The wettest month (with the highest rainfall) is March (108mm).
The driest month (with the least rainfall) is September (27mm).

Average rainfall days in December
Irajuba, Brazil

  • Average rainfall days in December: 23.3 days

The month with the highest number of rainy days is January (24.7 days).
The month with the least rainy days is September (20 days).

Average daylight in December /
Average sunshine in December
Irajuba, Brazil

  • Average daylight in December: 12h and 54min

The month with the longest days is December (Average daylight: 12h and 54min).
The month with the shortest days is June (Average daylight: 11h and 24min).

  • Average sunshine in December: 7h and 0min

The months with the most sunshine are January and February (Average sunshine: 7h and 36min).
The month with the least sunshine is July (Average sunshine: 3h and 36min).

Average sunshine days in December
Irajuba, Brazil

  • Average sunshine days in December: 5.3 days

The month with the most sunshine days is December (5.3 days).
The months with the least sunshine days are April and July (2.3 days).

Average UV index in December
Irajuba, Brazil

  • Average UV index in December: 5

The months with the highest UV index are January, February, March, September and November (UV index 6).
The months with the lowest UV index are June and July (UV index 4).

Average cloud cover in December
Irajuba, Brazil

  • Average cloud cover in December: 67

The month with the most cloud cover is July (Cloud cover 78).
The month with the least cloud cover is December (Cloud cover 67).

Average visibility in December
Irajuba, Brazil

  • Average visibility in December: 7km

The months with the highest visibility are January, February, March, September, October, November and December (7km).
The months with the lowest visibility are April, May, June, July and August (6km).