December weather forecastCoombell, Australia
December
Weather in December
December, the first month of the summer in Coombell, is also a moderately hot month, with an average temperature ranging between min 18.6°C (65.5°F) and max 27.6°C (81.7°F).Temperature
The arrival of December marks a slight shift to an average high-temperature of a still warm 27.6°C (81.7°F) from November's 27°C (80.6°F). December brings with it a nighttime average temperature of 18.6°C (65.5°F) in Coombell.Heat index
December's average heat index is calculated to be a tropical 31°C (87.8°F). One might feel worn out with persistent exposure and activity, resulting in heat cramps.Be aware that heat index ratings are designed for shaded locations and minor breezes. Exposure to the sun directly might heighten the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are quite important for babies and toddlers. Children frequently underestimate the importance of resting and drinking fluids. Thirst is a symptom of advanced dehydration - hence the need to hydrate regularly, especially during protracted physical exercises.
Humidity
The average relative humidity in December in Coombell, Australia, is 77%.Rainfall
In Coombell, during December, the rain falls for 19.5 days and regularly aggregates up to 76mm (2.99") of precipitation. In Coombell, Australia, during the entire year, the rain falls for 184.7 days and collects up to 718mm (28.27") of precipitation.Daylight
The month with the longest days in Coombell is December, with an average of 14h and 0min of daylight.On the first day of the month, sunrise is at 5:41 am and sunset at 7:32 pm. On the last day of December, in Coombell, sunrise is at 5:52 am and sunset at 7:50 pm AEDT.
Sunshine
The average sunshine in December is 9.4h.UV index
January, February, November and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A typical high UV index of 6 in December suggests the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Avoid direct Sun exposure and stay in the shade between 10 a.m. and 4 p.m., a time when UV radiation is most intense, noting that not all shade structures offer full protection. 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.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Coombell, Australia
- Average high temperature in December: 27.6°C
The warmest month (with the highest average high temperature) is January (28.3°C).
The month with the lowest average high temperature is July (18.1°C).
- Average low temperature in December: 18.6°C
The month with the highest average low temperature is January (19.8°C).
The coldest month (with the lowest average low temperature) is July (9.8°C).
Average pressure in December
Coombell, Australia
- Average pressure in December: 1013.6mbar
The month with the highest atmospheric pressure is July (1020.7mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).
Average wind speed in December
Coombell, Australia
- Average wind speed in December: 11.1km/h
The windiest month (with the highest average wind speed) is October (11.4km/h).
The calmest month (with the lowest average wind speed) is May (9.6km/h).
Average humidity in December
Coombell, Australia
- Average humidity in December: 77%
The month with the highest relative humidity is March (83%).
The months with the lowest relative humidity are August and September (71%).
Average rainfall in December
Coombell, Australia
- Average rainfall in December: 76mm
The wettest month (with the highest rainfall) is March (102mm).
The driest month (with the least rainfall) is September (22mm).
Average rainfall days in December
Coombell, Australia
- Average rainfall days in December: 19.5 days
The month with the highest number of rainy days is March (22.7 days).
The month with the least rainy days is August (8.1 days).
Average daylight in December /
Average sunshine in December
Coombell, Australia
- Average daylight in December: 14h and 0min
The month with the longest days is December (Average daylight: 14h and 0min).
The month with the shortest days is June (Average daylight: 10h and 18min).
- Average sunshine in December: 9h and 24min
The month with the most sunshine is November (Average sunshine: 10h and 18min).
The month with the least sunshine is June (Average sunshine: 5h and 48min).
Average sunshine days in December
Coombell, Australia
- Average sunshine days in December: 9 days
The month with the most sunshine days is August (20.6 days).
The month with the least sunshine days is March (5.8 days).
Average UV index in December
Coombell, Australia
- Average UV index in December: 6
The months with the highest UV index are January, February, November and December (UV index 6).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in December
Coombell, Australia
- Average cloud cover in December: 42
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is August (Cloud cover 21).
Average visibility in December
Coombell, Australia
- Average visibility in December: 9km
The months with the highest visibility are August and September (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, October, November and December (9km).





