December weather forecast
Mordialloc, Australia

December

Weather in December

The first month of the summer, December, is a warm month in Mordialloc, Australia, with an average temperature fluctuating between 23°C (73.4°F) and 13°C (55.4°F).

Temperature

The unfolding of December shows an average high-temperature of a warm 23°C (73.4°F), indicating a slight variance from November's 21.1°C (70°F). The average low-temperature, in December, in Mordialloc, is a mild 13°C (55.4°F).

Humidity

The average relative humidity in December in Mordialloc is 67%.

Rainfall

In December, in Mordialloc, the rain falls for 11.3 days. Throughout December, 40mm (1.57") of precipitation is accumulated. In Mordialloc, during the entire year, the rain falls for 158.8 days and collects up to 484mm (19.06") of precipitation.

Daylight

With an average of 14h and 48min of daylight, December has the longest days of the year.
On the first day of December, sunrise is at 5:50 am and sunset at 8:26 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 8:45 pm AEDT.

Sunshine

December has the most sunshine of the year, with an average of 9.7h of sunshine.

UV index

The months with the highest UV index in Mordialloc are January through March, October through December, with an average maximum UV index of 5. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.
Note: An average UV index of 5 in December transforms into this advice:
Be careful. Light complexion individuals might get 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.

Frequently asked questions

What is the average December temperature in Mordialloc?
The average high-temperature, in December, in Mordialloc, is 23°C (73.4°F), while the average low-temperature is 13°C (55.4°F).
What is the average humidity in December in Mordialloc?
In December, the average relative humidity in Mordialloc is 67%.
How much does it rain in Mordialloc in December?
In Mordialloc, Australia, in December, during 11.3 rainfall days, 40mm (1.57") of precipitation is typically accumulated.
When are the longest days in Mordialloc?
December has the longest days of the year in Mordialloc, Australia, with an average of 14h and 48min of daylight.
How many hours of daylight does Mordialloc have in December?
The average day length in December in Mordialloc, Australia, is 14h and 45min.
When is the sunrise / sunset in December in Mordialloc?
On the first day of December in Mordialloc, sunrise is at 5:50 am and sunset at 8:26 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 8:45 pm AEDT.
What month has the most sunshine in Mordialloc?
December has the most sunshine of the year, with an average of 9.7h of sunshine.
How long on average sun shines in December in Mordialloc?
In December, the average sunshine duration is 9.7h.
When is the highest UV index in Mordialloc?
January through March, October through December, with an average maximum UV index of 5, are months with the highest UV index in Mordialloc.
How high is the UV index in December in Mordialloc?
The average daily maximum UV index in December in Mordialloc is 5. A UV Index of 3 to 5 symbolizes a moderate vulnerability from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Mordialloc, Australia
Average temperature in December
Mordialloc, Australia
  • Average high temperature in December: 23°C

The warmest month (with the highest average high temperature) is January (25°C).
The month with the lowest average high temperature is July (13°C).

  • Average low temperature in December: 13°C

The month with the highest average low temperature is February (15.4°C).
The coldest month (with the lowest average low temperature) is August (7.3°C).

Average pressure in December - Mordialloc, Australia
Average pressure in December
Mordialloc, Australia
  • Average pressure in December: 1012.7mbar

The month with the highest atmospheric pressure is June (1021.2mbar).
The month with the lowest atmospheric pressure is January (1012.5mbar).

Average wind speed in December - Mordialloc, Australia
Average wind speed in December
Mordialloc, Australia
  • Average wind speed in December: 11.6km/h

The windiest month (with the highest average wind speed) is August (15.1km/h).
The calmest month (with the lowest average wind speed) is April (11.4km/h).

Average humidity in December - Mordialloc, Australia
Average humidity in December
Mordialloc, Australia
  • Average humidity in December: 67%

The month with the highest relative humidity is June (80%).
The month with the lowest relative humidity is January (65%).

Average rainfall in December - Mordialloc, Australia
Average rainfall in December
Mordialloc, Australia
  • Average rainfall in December: 40mm

The wettest month (with the highest rainfall) is August (52mm).
The driest month (with the least rainfall) is March (31mm).

Average rainfall days in December - Mordialloc, Australia
Average rainfall days in December
Mordialloc, Australia
  • Average rainfall days in December: 11.3 days

The month with the highest number of rainy days is August (17.8 days).
The month with the least rainy days is January (9 days).

Average daylight in December / Average sunshine in December - Mordialloc, Australia
Average daylight in December /
Average sunshine in December
Mordialloc, Australia
  • Average daylight in December: 14h and 5min

The month with the longest days is December (Average daylight: 14h and 48min).
The month with the shortest days is June (Average daylight: 9h and 36min).

  • Average sunshine in December: 9h and 4min

The month with the most sunshine is December (Average sunshine: 9h and 42min).
The months with the least sunshine are May, July and August (Average sunshine: 6h and 30min).

Average sunshine days in December - Mordialloc, Australia
Average sunshine days in December
Mordialloc, Australia
  • Average sunshine days in December: 18.6 days

The month with the most sunshine days is January (19 days).
The months with the least sunshine days are July and August (10.8 days).

Average UV index in December - Mordialloc, Australia
Average UV index in December
Mordialloc, Australia
  • Average UV index in December: 5

The months with the highest UV index are January, February, March, October, November and December (UV index 5).
The months with the lowest UV index are June, July and August (UV index 3).

Average cloud cover in December - Mordialloc, Australia
Average cloud cover in December
Mordialloc, Australia
  • Average cloud cover in December: 35

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 31).

Average visibility in December - Mordialloc, Australia
Average visibility in December
Mordialloc, Australia
  • Average visibility in December: 9km

The months with the highest visibility are January, February and March (10km).
The months with the lowest visibility are April, May, June, July, August, September, October, November and December (9km).

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