December weather forecast
Kogarah, Australia

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Weather in December

The first month of the summer, December, is also a moderately hot month in Kogarah, Australia, with an average temperature varying between 18.4°C (65.1°F) and 25.5°C (77.9°F).

Temperature

Kogarah greets December with an average high-temperature of a still warm 25.5°C (77.9°F), marking a slight deviation from the preceding month. Throughout December, an average nighttime temperature of 18.4°C (65.1°F) is experienced.

Humidity

In Kogarah, the average relative humidity in December is 71%.

Rainfall

In Kogarah, during December, the rain falls for 10.5 days and regularly aggregates up to 23mm (0.91") of precipitation. Throughout the year, in Kogarah, there are 139.8 rainfall days, and 348mm (13.7") of precipitation is accumulated.

Sea temperature

In December, the average sea temperature in Kogarah is 21.9°C (71.4°F).
Note: When the surface water temperature is 21.9°C (71.4°F), most do not enjoy swimming. Breathing control becomes more complex as temperatures drop below 21°C (69.8°F).

Daylight

The month with the longest days in Kogarah, Australia, is December, with an average of 14h and 24min of daylight.
On the first day of the month, sunrise is at 5:37 am and sunset at 7:51 pm. On the last day of December, sunrise is at 5:47 am and sunset at 8:09 pm AEDT.

Sunshine

The average sunshine in December in Kogarah is 9.7h.

UV index

The months with the highest UV index in Kogarah are January, February and December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 6 in December converts into the following recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Be vigilant! The Sun's UV rays get a boost from sand and water reflections.
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Frequently asked questions

What are the temperatures in Kogarah in December?

The average high-temperature and low-temperature in Kogarah, Australia, during December are 25.5°C (77.9°F) and 18.4°C (65.1°F) respectively.

What is the average humidity in December in Kogarah?

In December, the average relative humidity is 71%.

How many days does it rain in December in Kogarah?

In Kogarah, Australia, in December, during 10.5 rainfall days, 23mm (0.91") of precipitation is typically accumulated.

What is the sea water temperature in December in Kogarah?

In Kogarah, in December, the average water temperature is 21.9°C (71.4°F). For most, swimming in 21.9°C (71.4°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

When are the longest days in Kogarah?

The month with the longest days in Kogarah, Australia, is December, with an average of 14h and 24min of daylight.

What is the average length of the day in December in Kogarah?

In December, the average day length in Kogarah, Australia, is 14h and 22min.

When is the sunrise / sunset in December in Kogarah?

In December, on the first day of the month, sunrise is at 5:37 am and sunset at 7:51 pm. On the last day of the month, in Kogarah, Australia, sunrise is at 5:47 am and sunset at 8:09 pm AEDT.

How long on average sun shines in December in Kogarah?

The average sunshine duration in December in Kogarah, Australia, is 9.7h.

When is the highest UV index in Kogarah?

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

What is the UV index intensity in December in Kogarah?

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

Average temperature in December
Kogarah, Australia

Average temperature in December - Kogarah, Australia
  • Average high temperature in December: 25.5°C

The warmest month (with the highest average high temperature) is January (26.9°C).
The month with the lowest average high temperature is July (16.6°C).

  • Average low temperature in December: 18.4°C

The months with the highest average low temperature are January and February (20.1°C).
The coldest month (with the lowest average low temperature) is July (10.1°C).

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Average pressure in December
Kogarah, Australia

Average pressure in December - Kogarah, Australia
  • Average pressure in December: 1013.3mbar

The month with the highest atmospheric pressure is June (1020.8mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).

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Average wind speed in December
Kogarah, Australia

Average wind speed in December - Kogarah, Australia
  • Average wind speed in December: 15.4km/h

The windiest month (with the highest average wind speed) is August (15.8km/h).
The calmest month (with the lowest average wind speed) is April (13.5km/h).

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Average humidity in December
Kogarah, Australia

Average humidity in December - Kogarah, Australia
  • Average humidity in December: 71%

The month with the highest relative humidity is February (75%).
The month with the lowest relative humidity is August (65%).

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Average rainfall in December
Kogarah, Australia

Average rainfall in December - Kogarah, Australia
  • Average rainfall in December: 23mm

The wettest month (with the highest rainfall) is March (43mm).
The driest month (with the least rainfall) is September (17mm).

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Average rainfall days in December
Kogarah, Australia

Average rainfall days in December - Kogarah, Australia
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is March (15.3 days).
The month with the least rainy days is August (9.2 days).

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Average sea temperature in December
Kogarah, Australia

Average sea temperature in December - Kogarah, 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
Kogarah, Australia

Average daylight in December / Average sunshine in December - Kogarah, 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 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 54min).

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Average sunshine days in December
Kogarah, Australia

Average sunshine days in December - Kogarah, Australia
  • Average sunshine days in December: 15.6 days

The month with the most sunshine days is July (17.6 days).
The month with the least sunshine days is February (11.8 days).

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Average UV index in December
Kogarah, Australia

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

The months with the highest UV index are January, February 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
Kogarah, Australia

Average cloud cover in December - Kogarah, Australia
  • Average cloud cover in December: 37

The month with the most cloud cover is February (Cloud cover 42).
The month with the least cloud cover is August (Cloud cover 24).

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Average visibility in December
Kogarah, Australia

Average visibility in December - Kogarah, 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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Kogarah, Australia

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