December weather forecastWesterway, Australia
December
Weather in December
The first month of the summer, December, is still a refreshing month in Westerway, Australia, with an average temperature fluctuating between 18.5°C (65.3°F) and 9.6°C (49.3°F).Temperature
The advent of December denotes an average high-temperature of a still enjoyable 18.5°C (65.3°F), subtly different from November's 17°C (62.6°F). An average low-temperature of 9.6°C (49.3°F) marks the month of December in Westerway.Humidity
January and December, with an average relative humidity of 73%, are the least humid months in Westerway.Rainfall
In Westerway, in December, it is raining for 13.7 days, with typically 35mm (1.38") of accumulated precipitation. Throughout the year, in Westerway, there are 163.7 rainfall days, and 356mm (14.02") of precipitation is accumulated.Snowfall
January through July, September through December are months without snowfall in Westerway.Daylight
With an average of 15h and 18min of daylight, December has the longest days of the year in Westerway.On the first day of December, sunrise is at 5:29 am and sunset at 8:34 pm. On the last day of the month, sunrise is at 5:37 am and sunset at 8:53 pm AEDT.
Sunshine
With an average of 9.2h of sunshine, December has the most sunshine of the year.UV index
The month with the highest UV index is December, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 5 in December translates into these instructions:
Act with care - Obligation to protect against skin and eye damage is highlighted. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. 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
Westerway, Australia
- Average high temperature in December: 18.5°C
The warmest month (with the highest average high temperature) is January (20.1°C).
The month with the lowest average high temperature is July (10.9°C).
- Average low temperature in December: 9.6°C
The month with the highest average low temperature is January (11.1°C).
The coldest month (with the lowest average low temperature) is August (4.8°C).
Average pressure in December
Westerway, Australia
- Average pressure in December: 1010.7mbar
The month with the highest atmospheric pressure is June (1017.8mbar).
The month with the lowest atmospheric pressure is December (1010.7mbar).
Average wind speed in December
Westerway, Australia
- Average wind speed in December: 12.6km/h
The windiest month (with the highest average wind speed) is September (14.5km/h).
The calmest month (with the lowest average wind speed) is March (11.4km/h).
Average humidity in December
Westerway, Australia
- Average humidity in December: 73%
The month with the highest relative humidity is June (82%).
The months with the lowest relative humidity are January and December (73%).
Average rainfall in December
Westerway, Australia
- Average rainfall in December: 35mm
The wettest months (with the highest rainfall) are August and November (38mm).
The driest months (with the least rainfall) are January and October (23mm).
Average rainfall days in December
Westerway, Australia
- Average rainfall days in December: 13.7 days
The month with the highest number of rainy days is November (16 days).
The month with the least rainy days is June (11.4 days).
Average snowfall days in December
Westerway, Australia
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is August (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Westerway, Australia
- Average daylight in December: 15h and 18min
The month with the longest days is December (Average daylight: 15h and 18min).
The month with the shortest days is June (Average daylight: 9h and 6min).
- Average sunshine in December: 9h and 12min
The month with the most sunshine is December (Average sunshine: 9h and 12min).
The month with the least sunshine is June (Average sunshine: 5h and 18min).
Average sunshine days in December
Westerway, Australia
- Average sunshine days in December: 11.9 days
The month with the most sunshine days is June (15.3 days).
The month with the least sunshine days is November (9.5 days).
Average UV index in December
Westerway, Australia
- Average UV index in December: 5
The month with the highest UV index is December (UV index 5).
The months with the lowest UV index are May, June, July, August and September (UV index 3).
Average cloud cover in December
Westerway, Australia
- Average cloud cover in December: 42
The month with the most cloud cover is November (Cloud cover 47).
The month with the least cloud cover is January (Cloud cover 39).
Average visibility in December
Westerway, Australia
- Average visibility in December: 9km
The months with the highest visibility are June, July, August and September (10km).
The months with the lowest visibility are January, February, March, April, May, October, November and December (9km).
