December weather forecast
Mittagong, Australia

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Weather in December

The first month of the summer, December, is still a warm month in Mittagong, Australia, with an average temperature varying between 25.8°C (78.4°F) and 13.4°C (56.1°F).

Temperature

The average high-temperature for December is a still warm 25.8°C (78.4°F), closely aligning with the temperature of the preceding month. Mittagong reports a steady low-temperature average of 13.4°C (56.1°F) throughout December, revealing a large deviation from the daytime high.

Humidity

With an average relative humidity of 72%, December is the least humid month in Mittagong.

Rainfall

In Mittagong, Australia, during December, the rain falls for 15.7 days and regularly aggregates up to 51mm (2.01") of precipitation. Throughout the year, in Mittagong, Australia, there are 151.6 rainfall days, and 579mm (22.8") of precipitation is accumulated.

Daylight

The month with the longest days in Mittagong is December, with an average of 14h and 24min of daylight.
On the first day of the month, sunrise is at 5:38 am and sunset at 7:55 pm. On the last day of December, in Mittagong, sunrise is at 5:48 am and sunset at 8:13 pm AEDT.

Sunshine

November and December, with an average of 9.1h of sunshine, are months with the most sunshine in Mittagong.

UV index

The months with the highest UV index in Mittagong are January and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the average person.
Note: A maximum UV index of 6 in December translates into the following recommendations:
Beware of overexposure. Fair-skinned individuals risk burning in less than 20 minutes. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Opt for tightly woven and loose clothing to enhance protection from the Sun.
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Frequently asked questions

What are the temperatures in Mittagong in December?

Mittagong in December has an average high-temperature of 25.8°C (78.4°F) and an average low-temperature of 13.4°C (56.1°F). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in January is computed to be 31°C (87.8°F).

What is the least humid month in Mittagong?

The least humid month in Mittagong, Australia, is December, with an average relative humidity of 72%.

What is the average humidity in December in Mittagong?

In Mittagong, the average relative humidity in December is 72%.

How many days does it rain in December in Mittagong?

In Mittagong, Australia, during December, the rain falls for 15.7 days and regularly aggregates up to 51mm (2.01") of precipitation.

When are the longest days in Mittagong?

December has the longest days of the year, with an average of 14h and 24min of daylight.

How many hours of daylight does Mittagong have in December?

In Mittagong, Australia, the average day length in December is 14h and 25min.

What time are sunrise and sunset in December in Mittagong?

On the first day of December in Mittagong, sunrise is at 5:38 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:48 am and sunset at 8:13 pm AEDT.

What is the month with the most sunshine in Mittagong?

November and December, with an average of 9.1h of sunshine, are months with the most sunshine.

How many hours of sunshine does Mittagong have in December?

In Mittagong, Australia, the average sunshine duration in December is 9.1h.

When is the highest UV index in Mittagong?

The months with the highest UV index are January and December, with an average maximum UV index of 6.

How high is the UV index in December in Mittagong?

In December, the average daily maximum UV index in Mittagong is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to UV radiation.

Average temperature in December
Mittagong, Australia

Average temperature in December - Mittagong, Australia
  • Average high temperature in December: 25.8°C

The warmest month (with the highest average high temperature) is January (27.8°C).
The month with the lowest average high temperature is July (13.1°C).

  • Average low temperature in December: 13.4°C

The month with the highest average low temperature is January (15.3°C).
The coldest months (with the lowest average low temperature) are July and August (4.3°C).

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Average pressure in December
Mittagong, Australia

Average pressure in December - Mittagong, Australia
  • Average pressure in December: 1013.2mbar

The month with the highest atmospheric pressure is June (1021.2mbar).
The month with the lowest atmospheric pressure is January (1012.8mbar).

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Average wind speed in December
Mittagong, Australia

Average wind speed in December - Mittagong, Australia
  • Average wind speed in December: 7.8km/h

The windiest month (with the highest average wind speed) is August (9.7km/h).
The calmest months (with the lowest average wind speed) are February, March and April (7.3km/h).

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Average humidity in December
Mittagong, Australia

Average humidity in December - Mittagong, Australia
  • Average humidity in December: 72%

The month with the highest relative humidity is June (84%).
The month with the lowest relative humidity is December (72%).

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Average rainfall in December
Mittagong, Australia

Average rainfall in December - Mittagong, Australia
  • Average rainfall in December: 51mm

The wettest month (with the highest rainfall) is February (92mm).
The driest month (with the least rainfall) is May (26mm).

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Average rainfall days in December
Mittagong, Australia

Average rainfall days in December - Mittagong, Australia
  • Average rainfall days in December: 15.7 days

The month with the highest number of rainy days is March (16.9 days).
The month with the least rainy days is May (7.7 days).

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Average daylight in December /
Average sunshine in December
Mittagong, Australia

Average daylight in December / Average sunshine in December - Mittagong, 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: 9h and 1min

The months with the most sunshine are November and December (Average sunshine: 9h and 6min).
The month with the least sunshine is June (Average sunshine: 5h and 18min).

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Average sunshine days in December
Mittagong, Australia

Average sunshine days in December - Mittagong, Australia
  • Average sunshine days in December: 12.5 days

The month with the most sunshine days is May (21.2 days).
The month with the least sunshine days is February (10.4 days).

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Average UV index in December
Mittagong, Australia

Average UV index in December - Mittagong, Australia
  • Average UV index in December: 6

The months with the highest UV index are January and December (UV index 6).
The months with the lowest UV index are May, June, July and September (UV index 3).

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Average cloud cover in December
Mittagong, Australia

Average cloud cover in December - Mittagong, Australia
  • Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 57).
The month with the least cloud cover is August (Cloud cover 36).

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Average visibility in December
Mittagong, Australia

Average visibility in December - Mittagong, Australia
  • Average visibility in December: 8km

The months with the highest visibility are January, May, July, August, September, October and December (8km).
The months with the lowest visibility are February, March, April, June and November (7km).

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Mittagong, Australia

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