December weather forecast
Kurnell, Australia

December

Weather in December

December, the first month of the summer in Kurnell, is still a warm month, with an average temperature ranging between min 18.4°C (65.1°F) and max 25.5°C (77.9°F).

Temperature

December's advent denotes a minor fluctuation in the average high-temperature to a still moderately hot 25.5°C (77.9°F) from November's 23.8°C (74.8°F). Kurnell's average low-temperature during December nights is observed to be a refreshing 18.4°C (65.1°F).

Humidity

In December, the average relative humidity is 71%.

Rainfall

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

Sea temperature

In December, the average sea temperature in Kurnell is 21.6°C (70.9°F).
Note: Swimming in water that is 21.6°C (70.9°F) is not enjoyable for most. Breathing becomes more challenging to manage as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).

Daylight

The month with the longest days in Kurnell is December, with an average of 14h and 24min of daylight.
On the first day of the month, sunrise is at 5:36 am and sunset at 7:51 pm. On the last day of December, in Kurnell, sunrise is at 5:46 am and sunset at 8:09 pm AEDT.

Sunshine

The average sunshine in December is 9.7h.

UV index

The months with the highest UV index are January, February 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 ordinary person.
Note: During December, 6 as the daily maximum UV index converts into the following advice:
Undertake protective measures and comply with sun safety rules. Shielding against skin and eye damage is essential. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Be on guard! The reflective nature of sand and water boosts UV exposure.

Frequently asked questions

What is the temperature in December in Kurnell?
In Kurnell, 25.5°C (77.9°F) is the average high-temperature and 18.4°C (65.1°F) is the average low-temperature during December.
What is the average humidity in December in Kurnell?
In Kurnell, Australia, the average relative humidity in December is 71%.
How many days does it rain in December in Kurnell?
In Kurnell, in December, during 10.5 rainfall days, 23mm (0.91") of precipitation is typically accumulated.
How cold is the water in December in Kurnell?
In Kurnell, the average seawater temperature in December is 21.6°C (70.9°F). Swimming in 21.6°C (70.9°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 Kurnell?
December has the longest days of the year in Kurnell, Australia, with an average of 14h and 24min of daylight.
What is the average length of the day in December in Kurnell?
The average day length in December in Kurnell is 14h and 23min.
What time are sunrise and sunset in December in Kurnell?
On the first day of December, sunrise is at 5:36 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 5:46 am and sunset at 8:09 pm AEDT.
How long on average sun shines in December in Kurnell?
The average sunshine duration in December in Kurnell, Australia, is 9.7h.
What is the month with the highest UV index in Kurnell?
January, February and December, with an average maximum UV index of 6, are months with the highest UV index in Kurnell, Australia.
What is the UV index reading in December in Kurnell?
In Kurnell, Australia, the average daily maximum UV index in December is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's 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 sea temperature
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December - Kurnell, Australia
Average temperature in December
Kurnell, 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).

Average pressure in December - Kurnell, Australia
Average pressure in December
Kurnell, 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).

Average wind speed in December - Kurnell, Australia
Average wind speed in December
Kurnell, 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).

Average humidity in December - Kurnell, Australia
Average humidity in December
Kurnell, 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%).

Average rainfall in December - Kurnell, Australia
Average rainfall in December
Kurnell, 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).

Average rainfall days in December - Kurnell, Australia
Average rainfall days in December
Kurnell, 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).

Average sea temperature in December - Kurnell, Australia
Average sea temperature in December
Kurnell, Australia
  • Average sea temperature in December: 21.6°C

The best month for swimming (with the highest average sea temperature) is February (23.8°C).
The coldest month (with the lowest average sea temperature) is September (18.4°C).

Average daylight in December / Average sunshine in December - Kurnell, Australia
Average daylight in December /
Average sunshine in December
Kurnell, 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).

Average sunshine days in December - Kurnell, Australia
Average sunshine days in December
Kurnell, 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).

Average UV index in December - Kurnell, Australia
Average UV index in December
Kurnell, 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).

Average cloud cover in December - Kurnell, Australia
Average cloud cover in December
Kurnell, 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).

Average visibility in December - Kurnell, Australia
Average visibility in December
Kurnell, 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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