December weather forecastBullsbrook, Australia
December
Weather in December
December, the first month of the summer in Bullsbrook, is a tropical month, with an average temperature varying between 30°C (86°F) and 16.7°C (62.1°F).Temperature
Bullsbrook perceives a slight temperature ascent during December, with average high-temperatures adjusting from a moderately hot 26.9°C (80.4°F) in November to a tropical 30°C (86°F). In Bullsbrook, the average temperature during the nights of December marks a significant drop from the daily high, settling at a refreshing 16.7°C (62.1°F).Heat index
In December, the heat index is appraised at a tropical 31°C (87.8°F). Persistently participating in activities during exposure may lead to fatigue and induce heat cramps.Records show heat index calculations are tailored for shaded regions and mild winds. Exposure to unobstructed sunshine could lead to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'felt air temperature', evaluates the perceived heat by adding the effect of moisture in the air. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Humidity
In Bullsbrook, Australia, the average relative humidity in December is 50%.Rainfall
The months with the least rainfall are March and December Rain falls for 5.2 days and accumulates 9mm (0.35") of rain.Daylight
With an average of 14h and 12min of daylight, December has the longest days of the year.On the first day of the month, sunrise is at 5:03 am and sunset at 7:06 pm. On the last day of December, sunrise is at 5:13 am and sunset at 7:24 pm AWST.
Sunshine
The months with the most sunshine are January and December, with an average of 11.5h of sunshine.UV index
In Bullsbrook, the average daily maximum UV index in December is 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the ordinary person.Note: The average daily UV index of 6 in December transforms into the following instructions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Bullsbrook, Australia
- Average high temperature in December: 30°C
The warmest month (with the highest average high temperature) is February (32°C).
The month with the lowest average high temperature is July (16.8°C).
- Average low temperature in December: 16.7°C
The month with the highest average low temperature is February (18.9°C).
The coldest month (with the lowest average low temperature) is August (8.5°C).
Average pressure in December
Bullsbrook, Australia
- Average pressure in December: 1012.2mbar
The month with the highest atmospheric pressure is July (1020.7mbar).
The month with the lowest atmospheric pressure is January (1011mbar).
Average wind speed in December
Bullsbrook, Australia
- Average wind speed in December: 12.4km/h
The windiest months (with the highest average wind speed) are January and February (12.6km/h).
The calmest months (with the lowest average wind speed) are May and July (10km/h).
Average humidity in December
Bullsbrook, Australia
- Average humidity in December: 50%
The months with the highest relative humidity are July and August (78%).
The month with the lowest relative humidity is January (49%).
Average rainfall in December
Bullsbrook, Australia
- Average rainfall in December: 9mm
The wettest month (with the highest rainfall) is June (51mm).
The driest months (with the least rainfall) are March and December (9mm).
Average rainfall days in December
Bullsbrook, Australia
- Average rainfall days in December: 5.2 days
The month with the highest number of rainy days is July (13.5 days).
The month with the least rainy days is February (4.8 days).
Average daylight in December /
Average sunshine in December
Bullsbrook, 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: 11h and 30min
The months with the most sunshine are January and December (Average sunshine: 11h and 30min).
The month with the least sunshine is August (Average sunshine: 5h and 42min).
Average sunshine days in December
Bullsbrook, Australia
- Average sunshine days in December: 24.5 days
The month with the most sunshine days is December (24.5 days).
The month with the least sunshine days is July (15.1 days).
Average UV index in December
Bullsbrook, Australia
- Average UV index in December: 6
The month with the highest UV index is February (UV index 7).
The months with the lowest UV index are May, June, July and August (UV index 4).
Average cloud cover in December
Bullsbrook, Australia
- Average cloud cover in December: 16
The months with the most cloud cover are July and August (Cloud cover 41).
The month with the least cloud cover is January (Cloud cover 14).
Average visibility in December
Bullsbrook, Australia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, November and December (10km).
The months with the lowest visibility are May, June, July, August, September and October (9km).





