December weather forecast
Ettalong Beach, Australia

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Weather in December

December, the first month of the summer in Ettalong Beach, is also a moderately hot month, with an average temperature fluctuating between 25.9°C (78.6°F) and 18.1°C (64.6°F).

Temperature

Ettalong Beach marks the start of December with an average high-temperature of a still warm 25.9°C (78.6°F), hinting at a slight fluctuation from November's 24.4°C (75.9°F). In the month of December, the nighttime temperature in Ettalong Beach dips to a steady average of 18.1°C (64.6°F).

Humidity

In Ettalong Beach, the average relative humidity in December is 73%.

Rainfall

In Ettalong Beach, during December, the rain falls for 13.6 days and regularly aggregates up to 39mm (1.54") of precipitation. In Ettalong Beach, during the entire year, the rain falls for 156.9 days and collects up to 628mm (24.72") of precipitation.

Sea temperature

In December, the average sea temperature in Ettalong Beach is 21.9°C (71.4°F).
Note: The majority find it unenjoyable to swim in 21.9°C (71.4°F). Breathing becomes tougher as the water temperature descends under 21°C (69.8°F).

Daylight

December has the longest days of the year in Ettalong Beach, Australia, with an average of 14h and 18min of daylight.
On the first day of December in Ettalong Beach, sunrise is at 5:37 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:07 pm AEDT.

Sunshine

In December, the average sunshine is 9.7h.

UV index

The months with the highest UV index in Ettalong Beach are January, February, October through December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: An average UV index of 6 in December transforms into this advice:
Sidestep overexposure. Individuals with fair complexions risk burning in fewer than 20 minutes. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Warning! Sand and water reflections boost the intensity of UV exposure.
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Frequently asked questions

What are December temperatures in Ettalong Beach?

The high-temperature, in December, in Ettalong Beach, records 25.9°C (78.6°F), while the low-temperature is 18.1°C (64.6°F). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in January is estimated at 29°C (84.2°F).

What is the average humidity in December in Ettalong Beach?

In Ettalong Beach, Australia, the average relative humidity in December is 73%.

How many days does it rain in December in Ettalong Beach?

In Ettalong Beach, in December, during 13.6 rainfall days, 39mm (1.54") of precipitation is typically accumulated.

What is the sea water temperature in December in Ettalong Beach?

In Ettalong Beach, in December, the average water temperature is 21.9°C (71.4°F). Swimming in 21.9°C (71.4°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

When are the longest days in Ettalong Beach?

December has the longest days of the year in Ettalong Beach, with an average of 14h and 18min of daylight.

What is the average length of the day in December in Ettalong Beach?

The average day length in December in Ettalong Beach, Australia, is 14h and 20min.

What time are sunrise and sunset in December in Ettalong Beach?

On the first day of December, sunrise is at 5:37 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:07 pm AEDT.

How many hours of sunshine does Ettalong Beach have in December?

In December, the average sunshine duration in Ettalong Beach, Australia, is 9.7h.

When is the highest UV index in Ettalong Beach?

January, February, October through December, with an average maximum UV index of 6, are months with the highest UV index.

How high is the UV index in December in Ettalong Beach?

The average daily maximum UV index in December in Ettalong Beach is 6. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.

Average temperature in December
Ettalong Beach, Australia

Average temperature in December - Ettalong Beach, Australia
  • Average high temperature in December: 25.9°C

The warmest month (with the highest average high temperature) is January (27°C).
The month with the lowest average high temperature is July (16.5°C).

  • Average low temperature in December: 18.1°C

The month with the highest average low temperature is January (19.8°C).
The coldest month (with the lowest average low temperature) is July (9.8°C).

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Average pressure in December
Ettalong Beach, Australia

Average pressure in December - Ettalong Beach, Australia
  • Average pressure in December: 1013.3mbar

The month with the highest atmospheric pressure is June (1021mbar).
The month with the lowest atmospheric pressure is January (1012.8mbar).

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Average wind speed in December
Ettalong Beach, Australia

Average wind speed in December - Ettalong Beach, Australia
  • Average wind speed in December: 13.2km/h

The windiest month (with the highest average wind speed) is August (13.6km/h).
The calmest month (with the lowest average wind speed) is April (12km/h).

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Average humidity in December
Ettalong Beach, Australia

Average humidity in December - Ettalong Beach, Australia
  • Average humidity in December: 73%

The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (67%).

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Average rainfall in December
Ettalong Beach, Australia

Average rainfall in December - Ettalong Beach, Australia
  • Average rainfall in December: 39mm

The wettest month (with the highest rainfall) is February (100mm).
The driest month (with the least rainfall) is August (34mm).

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Average rainfall days in December
Ettalong Beach, Australia

Average rainfall days in December - Ettalong Beach, Australia
  • Average rainfall days in December: 13.6 days

The month with the highest number of rainy days is March (16.5 days).
The month with the least rainy days is August (9.2 days).

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Average sea temperature in December
Ettalong Beach, Australia

Average sea temperature in December - Ettalong Beach, Australia
  • Average sea temperature in December: 21.9°C

The best month for swimming (with the highest average sea temperature) is February (23.7°C).
The coldest month (with the lowest average sea temperature) is September (18.6°C).

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Average daylight in December /
Average sunshine in December
Ettalong Beach, Australia

Average daylight in December / Average sunshine in December - Ettalong Beach, Australia
  • Average daylight in December: 14h and 2min

The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).

  • Average sunshine in December: 9h and 4min

The month with the most sunshine is November (Average sunshine: 9h and 48min).
The month with the least sunshine is June (Average sunshine: 5h and 48min).

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Average sunshine days in December
Ettalong Beach, Australia

Average sunshine days in December - Ettalong Beach, Australia
  • Average sunshine days in December: 14.9 days

The month with the most sunshine days is August (20 days).
The month with the least sunshine days is February (10.6 days).

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Average UV index in December
Ettalong Beach, Australia

Average UV index in December - Ettalong Beach, Australia
  • Average UV index in December: 6

The months with the highest UV index are January, February, October, November and December (UV index 6).
The months with the lowest UV index are May, June, July, August and September (UV index 4).

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Average cloud cover in December
Ettalong Beach, Australia

Average cloud cover in December - Ettalong Beach, Australia
  • Average cloud cover in December: 36

The month with the most cloud cover is February (Cloud cover 41).
The month with the least cloud cover is August (Cloud cover 24).

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Average visibility in December
Ettalong Beach, Australia

Average visibility in December - Ettalong Beach, Australia
  • Average visibility in December: 10km

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

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Ettalong Beach, Australia

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