December weather forecastBox Hill, Australia
December
Weather in December
The first month of the summer, December, is a moderately hot month in Box Hill, Australia, with an average temperature varying between 23.7°C (74.7°F) and 12.5°C (54.5°F).Temperature
At the start of December, Box Hill's average high-temperature reaches a warm 23.7°C (74.7°F), subtly different from the preceding month. An average low-temperature of 12.5°C (54.5°F) is observed during December nights.Humidity
In December, the average relative humidity is 66%.Rainfall
In Box Hill, in December, it is raining for 12.6 days, with typically 46mm (1.81") of accumulated precipitation. Throughout the year, in Box Hill, there are 166 rainfall days, and 496mm (19.53") of precipitation is accumulated.Daylight
The month with the longest days in Box Hill is December, with an average of 14h and 42min of daylight.On the first day of December, sunrise is at 5:51 am and sunset at 8:26 pm. On the last day of the month, 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 in Box Hill.UV index
The months with the highest UV index in Box Hill are January, February, October through December, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the maximum UV index of 5 translates into these guidelines:
Undertake precautions - Guarding against sun damage is counselled. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Box 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
Box 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
Box 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
Box 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
Box 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
Box 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
Box 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
Box 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
Box 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
Box 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
Box 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).
