December weather forecastKoonibba, Australia
December
Weather in December
The first month of the summer, December, is still a warm month in Koonibba, Australia, with an average temperature fluctuating between 27.3°C (81.1°F) and 18.4°C (65.1°F).Temperature
Koonibba in December witnesses an average high-temperature of a still moderately hot 27.3°C (81.1°F), indicating a slight variation from November's 25.2°C (77.4°F). December nights are marked by an average temperature drop to a comfortable 18.4°C (65.1°F).Heat index
Throughout December, the heat index is computed to be 28°C (82.4°F). Long-standing exposure and activity could induce a feeling of tiredness and lead to heat cramps.Note that heat index values are valued for light wind and location in the shade. An exposure to direct sunlight may lift the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Younglings are generally more in peril than adults due to their reduced perspiration. Coupled with a larger skin surface relative to their tiny bodies and greater heat production because of their activity, they become more at risk.
Humidity
With an average relative humidity of 53%, December is the least humid month in Koonibba.Rainfall
In Koonibba, during December, the rain falls for 6.2 days and regularly aggregates up to 14mm (0.55") of precipitation. Throughout the year, in Koonibba, there are 103.6 rainfall days, and 213mm (8.39") of precipitation is accumulated.Daylight
With an average of 14h and 12min of daylight, December has the longest days of the year in Koonibba.On the first day of December, sunrise is at 6:22 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 6:33 am and sunset at 8:45 pm ACDT.
Sunshine
In December, the average sunshine is 9.2h.UV index
The month with the highest UV index is December, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high threat to health from unsafe exposure to UV radiation for the ordinary person.Note: In December, a daily UV index of 7 turns into the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Koonibba, Australia
- Average high temperature in December: 27.3°C
The warmest month (with the highest average high temperature) is January (28.7°C).
The month with the lowest average high temperature is July (16.8°C).
- Average low temperature in December: 18.4°C
The month with the highest average low temperature is January (19.5°C).
The coldest month (with the lowest average low temperature) is August (11.1°C).
Average pressure in December
Koonibba, Australia
- Average pressure in December: 1012.9mbar
The month with the highest atmospheric pressure is June (1022.6mbar).
The month with the lowest atmospheric pressure is January (1012.1mbar).
Average wind speed in December
Koonibba, Australia
- Average wind speed in December: 20.9km/h
The windiest month (with the highest average wind speed) is January (21.4km/h).
The calmest month (with the lowest average wind speed) is April (16.8km/h).
Average humidity in December
Koonibba, Australia
- Average humidity in December: 53%
The months with the highest relative humidity are June, July and August (63%).
The month with the lowest relative humidity is December (53%).
Average rainfall in December
Koonibba, Australia
- Average rainfall in December: 14mm
The wettest months (with the highest rainfall) are August and November (24mm).
The driest month (with the least rainfall) is September (12mm).
Average rainfall days in December
Koonibba, Australia
- Average rainfall days in December: 6.2 days
The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is February (5.2 days).
Average daylight in December /
Average sunshine in December
Koonibba, Australia
- Average daylight in December: 14h and 12min
The month with the longest days is December (Average daylight: 14h and 12min).
The month with the shortest days is June (Average daylight: 10h and 6min).
- Average sunshine in December: 9h and 12min
The month with the most sunshine is February (Average sunshine: 9h and 18min).
The months with the least sunshine are May and June (Average sunshine: 8h and 0min).
Average sunshine days in December
Koonibba, Australia
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is July (14.8 days).
Average UV index in December
Koonibba, Australia
- Average UV index in December: 7
The month with the highest UV index is December (UV index 7).
The months with the lowest UV index are May, June, July and August (UV index 4).
Average cloud cover in December
Koonibba, Australia
- Average cloud cover in December: 20
The months with the most cloud cover are May, June and July (Cloud cover 31).
The month with the least cloud cover is February (Cloud cover 18).
Average visibility in December
Koonibba, Australia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





