December weather forecastBriar Hill, Australia
December
Weather in December
The first month of the summer, December, is a moderately hot month in Briar Hill, Australia, with an average temperature fluctuating between 23.7°C (74.7°F) and 12.5°C (54.5°F).Temperature
Briar Hill marks the onset of December with an average high-temperature of a moderately hot 23.7°C (74.7°F), a subtle shift from November's 21.5°C (70.7°F). The month of December records an average low-temperature of 12.5°C (54.5°F) in Briar Hill.Humidity
The average relative humidity in December is 66%.Rainfall
In December, the rain falls for 12.6 days. Throughout December, 46mm (1.81") of precipitation is accumulated. In Briar Hill, during the entire year, the rain falls for 166 days and collects up to 496mm (19.53") of precipitation.Daylight
The month with the longest days is December, with an average of 14h and 42min of daylight.On the first day of the month, sunrise is at 5:51 am and sunset at 8:25 pm. On the last day of December, sunrise is at 6:00 am and sunset at 8:44 pm AEDT.
Sunshine
With an average of 10h of sunshine, December has the most sunshine of the year.UV index
The months with the highest UV index are January, February, October through December, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 5 in December leads to these recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Briar Hill, Australia
- Average high temperature in December: 23.7°C
The warmest month (with the highest average high temperature) is January (25.9°C).
The month with the lowest average high temperature is July (12.3°C).
- Average low temperature in December: 12.5°C
The month with the highest average low temperature is February (14.5°C).
The coldest month (with the lowest average low temperature) is August (6.4°C).
Average pressure in December
Briar Hill, Australia
- Average pressure in December: 1012.7mbar
The month with the highest atmospheric pressure is June (1021.3mbar).
The month with the lowest atmospheric pressure is January (1012.4mbar).
Average wind speed in December
Briar Hill, Australia
- Average wind speed in December: 10.4km/h
The windiest month (with the highest average wind speed) is August (13km/h).
The calmest month (with the lowest average wind speed) is April (9.9km/h).
Average humidity in December
Briar Hill, Australia
- Average humidity in December: 66%
The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is January (64%).
Average rainfall in December
Briar Hill, Australia
- Average rainfall in December: 46mm
The wettest month (with the highest rainfall) is August (48mm).
The driest month (with the least rainfall) is July (36mm).
Average rainfall days in December
Briar Hill, Australia
- Average rainfall days in December: 12.6 days
The month with the highest number of rainy days is August (17.5 days).
The month with the least rainy days is January (9.7 days).
Average daylight in December /
Average sunshine in December
Briar Hill, Australia
- Average daylight in December: 14h and 42min
The month with the longest days is December (Average daylight: 14h and 42min).
The month with the shortest days is June (Average daylight: 9h and 36min).
- Average sunshine in December: 10h and 0min
The month with the most sunshine is December (Average sunshine: 10h and 0min).
The month with the least sunshine is August (Average sunshine: 6h and 30min).
Average sunshine days in December
Briar Hill, Australia
- Average sunshine days in December: 15.4 days
The month with the most sunshine days is January (16.6 days).
The month with the least sunshine days is July (10.1 days).
Average UV index in December
Briar Hill, Australia
- Average UV index in December: 5
The months with the highest UV index are January, February, October, November and December (UV index 5).
The months with the lowest UV index are May, June, July and August (UV index 3).
Average cloud cover in December
Briar Hill, Australia
- Average cloud cover in December: 33
The months with the most cloud cover are July and August (Cloud cover 49).
The month with the least cloud cover is January (Cloud cover 29).
Average visibility in December
Briar Hill, Australia
- Average visibility in December: 9km
The month with the highest visibility is February (10km).
The months with the lowest visibility are January, March, April, May, June, July, August, September, October, November and December (9km).





