December weather forecast
Mount Martha, Australia

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Weather in December

The first month of the summer, December, is an agreeable month in Mount Martha, Australia, with temperature in the range of an average high of 21.6°C (70.9°F) and an average low of 13.8°C (56.8°F).

Temperature

The shift to December signals an average high-temperature of a pleasant 21.6°C (70.9°F), subtly varied from November's 19.9°C (67.8°F). The month of December records an average low-temperature of 13.8°C (56.8°F) in Mount Martha, Australia.

Humidity

The average relative humidity in December in Mount Martha is 69%.

Rainfall

In Mount Martha, in December, it is raining for 12.6 days, with typically 44mm (1.73") of accumulated precipitation. Throughout the year, in Mount Martha, there are 177.5 rainfall days, and 562mm (22.13") of precipitation is accumulated.

Daylight

With an average of 14h and 48min of daylight, December has the longest days of the year in Mount Martha.
On the first day of December, sunrise is at 5:50 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 8:46 pm AEDT.

Sunshine

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

UV index

The month with the highest UV index in Mount Martha is 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 high daily UV index of 6 during December translates into the following directions:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Avoid direct Sun exposure and seek shade from 10 a.m. to 4 p.m., the period of highest UV radiation. Remember, however, that not all shade structures offer full protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
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Frequently asked questions

What are the temperatures in Mount Martha in December?

In Mount Martha, in December, the average high-temperature is 21.6°C (70.9°F), and the average low-temperature is 13.8°C (56.8°F).

What is the average humidity in December in Mount Martha?

The average relative humidity in December is 69%.

How many days does it rain in December in Mount Martha?

In Mount Martha, Australia, in December, during 12.6 rainfall days, 44mm (1.73") of precipitation is typically accumulated.

When are the longest days in Mount Martha?

With an average of 14h and 48min of daylight, December has the longest days of the year.

How many hours of daylight does Mount Martha have in December?

In December, the average day length is 14h and 47min.

When is the sunrise / sunset in December in Mount Martha?

In December, on the first day of the month, sunrise is at 5:50 am and sunset at 8:27 pm. On the last day of the month, sunrise is at 5:59 am and sunset at 8:46 pm AEDT.

What month has the most sunshine in Mount Martha?

The month with the most sunshine in Mount Martha is December, with an average of 9.7h of sunshine.

How long on average sun shines in December in Mount Martha?

In December, the average sunshine duration in Mount Martha is 9.7h.

When is the highest UV index in Mount Martha?

With an average maximum UV index of 6, December is the month with the highest UV index in Mount Martha, Australia.

What is the UV index intensity in December in Mount Martha?

In Mount Martha, the average daily maximum UV index in December is 6. A UV Index value of 6 to 7 symbolizes a high health threat from exposure to Sun's UV rays.

Average temperature in December
Mount Martha, Australia

Average temperature in December - Mount Martha, Australia
  • Average high temperature in December: 21.6°C

The warmest months (with the highest average high temperature) are January and February (23.4°C).
The month with the lowest average high temperature is July (13°C).

  • Average low temperature in December: 13.8°C

The month with the highest average low temperature is February (16.2°C).
The coldest months (with the lowest average low temperature) are July and August (8.6°C).

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Average pressure in December
Mount Martha, Australia

Average pressure in December - Mount Martha, Australia
  • Average pressure in December: 1012.8mbar

The month with the highest atmospheric pressure is June (1021mbar).
The month with the lowest atmospheric pressure is January (1012.6mbar).

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Average wind speed in December
Mount Martha, Australia

Average wind speed in December - Mount Martha, Australia
  • Average wind speed in December: 14km/h

The windiest months (with the highest average wind speed) are July and August (18.6km/h).
The calmest months (with the lowest average wind speed) are January, March and December (14km/h).

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Average humidity in December
Mount Martha, Australia

Average humidity in December - Mount Martha, Australia
  • Average humidity in December: 69%

The month with the highest relative humidity is June (78%).
The month with the lowest relative humidity is January (68%).

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Average rainfall in December
Mount Martha, Australia

Average rainfall in December - Mount Martha, Australia
  • Average rainfall in December: 44mm

The wettest month (with the highest rainfall) is May (59mm).
The driest month (with the least rainfall) is March (34mm).

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Average rainfall days in December
Mount Martha, Australia

Average rainfall days in December - Mount Martha, Australia
  • Average rainfall days in December: 12.6 days

The month with the highest number of rainy days is August (19.3 days).
The month with the least rainy days is January (10.1 days).

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Average daylight in December /
Average sunshine in December
Mount Martha, Australia

Average daylight in December / Average sunshine in December - Mount Martha, 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 30min).

  • Average sunshine in December: 9h and 4min

The month with the most sunshine is December (Average sunshine: 9h and 42min).
The month with the least sunshine is May (Average sunshine: 6h and 24min).

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Average sunshine days in December
Mount Martha, Australia

Average sunshine days in December - Mount Martha, Australia
  • Average sunshine days in December: 16.1 days

The month with the most sunshine days is January (17.1 days).
The month with the least sunshine days is August (9.4 days).

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Average UV index in December
Mount Martha, Australia

Average UV index in December - Mount Martha, Australia
  • Average UV index in December: 6

The month with the highest UV index is December (UV index 6).
The months with the lowest UV index are June, July and August (UV index 3).

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Average cloud cover in December
Mount Martha, Australia

Average cloud cover in December - Mount Martha, Australia
  • Average cloud cover in December: 35

The month with the most cloud cover is July (Cloud cover 49).
The month with the least cloud cover is January (Cloud cover 31).

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Average visibility in December
Mount Martha, Australia

Average visibility in December - Mount Martha, Australia
  • Average visibility in December: 10km

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

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Mount Martha, Australia

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