December weather forecastEllerston, Australia
December
Weather in December
The first month of the summer, December, is still a warm month in Ellerston, Australia, with temperature in the range of an average high of 28.9°C (84°F) and an average low of 15.6°C (60.1°F).Temperature
The transition into December marks the average high-temperature at a still warm 28.9°C (84°F), differing minimally from November's 27°C (80.6°F). Ellerston encounters a significant temperature differential, with an average low-temperature of 15.6°C (60.1°F) during December nights.Heat index
December's average heat index is evaluated at a tropical 31°C (87.8°F). Prolonged exposure combined with continuous activity could lead to exhaustion, and possibly heat cramps.It is crucial to understand that heat index figures are for shade and gentle wind conditions. Heat index values may rise by up to 15 Fahrenheit (8 Celsius) degrees when exposed to direct sunlight.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Young individuals usually face greater risks than adults as their sweat production is less. Also, their larger skin surface relative to their small bodies and the high heat generation due to their activity contributes to their vulnerability.
Humidity
The least humid month in Ellerston is December, with an average relative humidity of 63%.Rainfall
In Ellerston, during December, the rain falls for 11.7 days and regularly aggregates up to 43mm (1.69") of precipitation. Throughout the year, there are 124.2 rainfall days, and 409mm (16.1") of precipitation is accumulated.Daylight
With an average of 14h and 12min of daylight, December has the longest days of the year.On the first day of December, sunrise is at 5:41 am and sunset at 7:45 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:03 pm AEDT.
Sunshine
December has the most sunshine of the year in Ellerston, with an average of 10.4h of sunshine.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 reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The maximum daily UV index of 6 during December translates into the following directions:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Clothes that are both tight-knit and comfortably loose are prime choices for sun protection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Ellerston, Australia
- Average high temperature in December: 28.9°C
The warmest month (with the highest average high temperature) is January (30.8°C).
The month with the lowest average high temperature is July (14.3°C).
- Average low temperature in December: 15.6°C
The month with the highest average low temperature is January (17.4°C).
The coldest month (with the lowest average low temperature) is July (4.5°C).
Average pressure in December
Ellerston, Australia
- Average pressure in December: 1013.1mbar
The months with the highest atmospheric pressure are June and July (1021.7mbar).
The month with the lowest atmospheric pressure is January (1012.5mbar).
Average wind speed in December
Ellerston, Australia
- Average wind speed in December: 7.8km/h
The windiest month (with the highest average wind speed) is September (8km/h).
The calmest months (with the lowest average wind speed) are April and May (6.3km/h).
Average humidity in December
Ellerston, Australia
- Average humidity in December: 63%
The month with the highest relative humidity is June (84%).
The month with the lowest relative humidity is December (63%).
Average rainfall in December
Ellerston, Australia
- Average rainfall in December: 43mm
The wettest month (with the highest rainfall) is November (54mm).
The driest month (with the least rainfall) is May (17mm).
Average rainfall days in December
Ellerston, Australia
- Average rainfall days in December: 11.7 days
The month with the highest number of rainy days is March (12.8 days).
The month with the least rainy days is May (8.3 days).
Average daylight in December /
Average sunshine in December
Ellerston, 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: 10h and 24min
The month with the most sunshine is December (Average sunshine: 10h and 24min).
The month with the least sunshine is June (Average sunshine: 5h and 42min).
Average sunshine days in December
Ellerston, Australia
- Average sunshine days in December: 17.2 days
The month with the most sunshine days is May (20.4 days).
The month with the least sunshine days is February (15.6 days).
Average UV index in December
Ellerston, 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 June and July (UV index 3).
Average cloud cover in December
Ellerston, Australia
- Average cloud cover in December: 34
The month with the most cloud cover is June (Cloud cover 53).
The month with the least cloud cover is September (Cloud cover 30).
Average visibility in December
Ellerston, Australia
- Average visibility in December: 9km
The months with the highest visibility are January and December (9km).
The months with the lowest visibility are April, June and July (7km).





