December weather forecast
Jenolan Caves, Australia

December

Weather in December

The first month of the summer, December, is also a moderately hot month in Jenolan Caves, Australia, with an average temperature varying between 13.7°C (56.7°F) and 26.8°C (80.2°F).

Temperature

Jenolan Caves's average high-temperature in December sits at a still moderately hot 26.8°C (80.2°F), showing little difference from the previous month. Jenolan Caves documents a significant temperature variance in December, with the mean nighttime lows settling at a mild 13.7°C (56.7°F).

Humidity

December is the least humid month, with an average relative humidity of 68%.

Rainfall

In December, the rain falls for 14.5 days. Throughout December, 49mm (1.93") of precipitation is accumulated. Throughout the year, in Jenolan Caves, there are 157.9 rainfall days, and 569mm (22.4") of precipitation is accumulated.

Daylight

December has the longest days of the year, with an average of 14h and 24min of daylight.
On the first day of December, sunrise is at 5:41 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:13 pm AEDT.

Sunshine

November and December, with an average of 10.1h of sunshine, are months with the most sunshine in Jenolan Caves.

UV index

The months with the highest UV index are January 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 rays for the ordinary person.
Note: The maximum UV index, 6 during December, leads to the following recommendations:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.

Frequently asked questions

What are December temperatures in Jenolan Caves?
In Jenolan Caves, 26.8°C (80.2°F) is the average high-temperature and 13.7°C (56.7°F) is the average low-temperature during December. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which takes the relative humidity and factors it into the air temperature reading, in January is evaluated at 32°C (89.6°F).
What is the least humid month in Jenolan Caves?
With an average relative humidity of 68%, December is the least humid month.
What is the average humidity in December in Jenolan Caves?
In Jenolan Caves, Australia, the average relative humidity in December is 68%.
How many days does it rain in December in Jenolan Caves?
In Jenolan Caves, Australia, in December, it is raining for 14.5 days, with typically 49mm (1.93") of accumulated precipitation.
When are the longest days in Jenolan Caves?
The month with the longest days is December, with an average of 14h and 24min of daylight.
What is the average length of the day in December in Jenolan Caves?
In Jenolan Caves, the average day length in December is 14h and 22min.
What time are sunrise and sunset in December in Jenolan Caves?
On the first day of December in Jenolan Caves, Australia, sunrise is at 5:41 am and sunset at 7:55 pm. On the last day of the month, sunrise is at 5:51 am and sunset at 8:13 pm AEDT.
What is the month with the most sunshine in Jenolan Caves?
November and December, with an average of 10.1h of sunshine, are months with the most sunshine.
How long on average sun shines in December in Jenolan Caves?
The average sunshine duration in December is 10.1h.
What are the months with the highest UV index in Jenolan Caves?
The months with the highest UV index in Jenolan Caves, Australia, are January and December, with an average maximum UV index of 6.
How high is the UV index in December in Jenolan Caves?
In December, the average daily maximum UV index in Jenolan Caves is 6. A UV Index 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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in December
Jenolan Caves, Australia
  • Average high temperature in December: 26.8°C

The warmest month (with the highest average high temperature) is January (28.6°C).
The months with the lowest average high temperature are June and July (13.7°C).

  • Average low temperature in December: 13.7°C

The month with the highest average low temperature is January (15.4°C).
The coldest month (with the lowest average low temperature) is July (3.3°C).

Average pressure in December
Jenolan Caves, Australia
  • Average pressure in December: 1013.2mbar

The month with the highest atmospheric pressure is June (1021.6mbar).
The month with the lowest atmospheric pressure is January (1012.7mbar).

Average wind speed in December
Jenolan Caves, Australia
  • Average wind speed in December: 6.9km/h

The windiest month (with the highest average wind speed) is August (8.6km/h).
The calmest months (with the lowest average wind speed) are March and April (6.3km/h).

Average humidity in December
Jenolan Caves, Australia
  • Average humidity in December: 68%

The month with the highest relative humidity is June (82%).
The month with the lowest relative humidity is December (68%).

Average rainfall in December
Jenolan Caves, Australia
  • Average rainfall in December: 49mm

The wettest month (with the highest rainfall) is February (109mm).
The driest month (with the least rainfall) is May (22mm).

Average rainfall days in December
Jenolan Caves, Australia
  • Average rainfall days in December: 14.5 days

The month with the highest number of rainy days is March (17.7 days).
The months with the least rainy days are July and August (8.9 days).

Average daylight in December /
Average sunshine in December
Jenolan Caves, 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: 10h and 1min

The months with the most sunshine are November and December (Average sunshine: 10h and 6min).
The month with the least sunshine is June (Average sunshine: 5h and 48min).

Average sunshine days in December
Jenolan Caves, Australia
  • Average sunshine days in December: 13.8 days

The month with the most sunshine days is May (19 days).
The month with the least sunshine days is February (8.9 days).

Average UV index in December
Jenolan Caves, 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 and July (UV index 3).

Average cloud cover in December
Jenolan Caves, Australia
  • Average cloud cover in December: 39

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 29).

Average visibility in December
Jenolan Caves, Australia
  • Average visibility in December: 8km

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

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