Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
As December arrives, a slight rise in the average high-temperature is observed, moving from an agreeable 22.8°C (73°F) in November to a moderately hot 26.3°C (79.3°F). In Mullalyup, the nighttime chill during December is a clear shift from the day's highs, with an average of 12.5°C (54.5°F).Humidity
The average relative humidity in December is 66%.Rainfall
In December, in Mullalyup, Australia, the rain falls for 7.4 days. Throughout December, 12mm (0.47") of precipitation is accumulated. Throughout the year, there are 127.4 rainfall days, and 330mm (12.99") of precipitation is accumulated.Daylight
December has the longest days of the year in Mullalyup, with an average of 14h and 24min of daylight.On the first day of December in Mullalyup, sunrise is at 4:58 am and sunset at 7:12 pm. On the last day of the month, sunrise is at 5:08 am and sunset at 7:30 pm AWST.
Sunshine
In Mullalyup, the average sunshine in December is 10.2h.UV index
In Mullalyup, Australia, the average daily maximum UV index in December is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum daily UV index of 5 in December interprets into the following recommendations:
Be vigilant - Suggestions to stave off sun damage are provided. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in Mullalyup?
What is the average humidity in December in Mullalyup?
How many days does it rain in December in Mullalyup?
When are the longest days in Mullalyup?
What is the average length of the day in December in Mullalyup?
When is the sunrise / sunset in December in Mullalyup?
How many hours of sunshine does Mullalyup have in December?
What is the UV index intensity in December in Mullalyup?
Average temperature in December
Mullalyup, Australia
- Average high temperature in December: 26.3°C
The warmest month (with the highest average high temperature) is January (28.2°C).
The month with the lowest average high temperature is July (14.3°C).
- Average low temperature in December: 12.5°C
The month with the highest average low temperature is February (14.3°C).
The coldest month (with the lowest average low temperature) is August (6.3°C).
Average pressure in December
Mullalyup, Australia
- Average pressure in December: 1014.3mbar
The month with the highest atmospheric pressure is May (1019.7mbar).
The month with the lowest atmospheric pressure is January (1013.4mbar).
Average wind speed in December
Mullalyup, Australia
- Average wind speed in December: 10.3km/h
The windiest month (with the highest average wind speed) is January (10.8km/h).
The calmest month (with the lowest average wind speed) is May (8.3km/h).
Average humidity in December
Mullalyup, Australia
- Average humidity in December: 66%
The month with the highest relative humidity is July (87%).
The month with the lowest relative humidity is January (64%).
Average rainfall in December
Mullalyup, Australia
- Average rainfall in December: 12mm
The wettest month (with the highest rainfall) is July (61mm).
The driest month (with the least rainfall) is February (7mm).
Average rainfall days in December
Mullalyup, Australia
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is August (17.3 days).
The month with the least rainy days is February (4.1 days).
Average daylight in December /
Average sunshine in December
Mullalyup, Australia
- Average daylight in December: 14h and 2min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in December: 10h and 1min
The month with the most sunshine is January (Average sunshine: 10h and 48min).
The month with the least sunshine is August (Average sunshine: 4h and 48min).
Average sunshine days in December
Mullalyup, Australia
- Average sunshine days in December: 22.3 days
The month with the most sunshine days is January (24.3 days).
The month with the least sunshine days is August (10.9 days).
Average UV index in December
Mullalyup, Australia
- Average UV index in December: 5
The month with the highest UV index is February (UV index 6).
The months with the lowest UV index are June, July and August (UV index 3).
Average cloud cover in December
Mullalyup, Australia
- Average cloud cover in December: 31
The month with the most cloud cover is August (Cloud cover 59).
The month with the least cloud cover is January (Cloud cover 26).
Average visibility in December
Mullalyup, Australia
- Average visibility in December: 9km
The months with the highest visibility are January, February, March and December (9km).
The months with the lowest visibility are June, July, August, September and October (7km).
