December weather forecast
Wahroonga, Australia

December

Weather in December

The first month of the summer, December, is still a warm month in Wahroonga, Australia, with an average temperature fluctuating between 25.8°C (78.4°F) and 17.9°C (64.2°F).

Temperature

The arrival of December sees an average high-temperature of a still moderately hot 25.8°C (78.4°F), hardly diverging from November's 24.3°C (75.7°F). December brings Wahroonga a consistent average low-temperature of 17.9°C (64.2°F).

Humidity

The average relative humidity in December in Wahroonga is 71%.

Rainfall

In Wahroonga, in December, during 14.8 rainfall days, 43mm (1.69") of precipitation is typically accumulated. In Wahroonga, during the entire year, the rain falls for 169 days and collects up to 647mm (25.47") of precipitation.

Daylight

The month with the longest days in Wahroonga is December, with an average of 14h and 18min 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

In December, the average sunshine in Wahroonga is 9.7h.

UV index

January, February, November and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The maximum daily UV index of 6 during December translates into the following directions:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.

Frequently asked questions

What are December temperatures in Wahroonga?
An average high-temperature, in December, in Wahroonga, is 25.8°C (78.4°F) and the average low-temperature is 17.9°C (64.2°F). In January, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is calculated to be 30°C (86°F).
What is the average humidity in December in Wahroonga?
In December, the average relative humidity is 71%.
How much does it rain in Wahroonga in December?
In Wahroonga, Australia, during December, the rain falls for 14.8 days and regularly aggregates up to 43mm (1.69") of precipitation.
When are the longest days in Wahroonga?
The month with the longest days is December, with an average of 14h and 18min of daylight.
How many hours of daylight does Wahroonga have in December?
In December, the average day length in Wahroonga, Australia, is 14h and 21min.
When are sunrise and sunset in December in Wahroonga?
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 Wahroonga, sunrise is at 5:47 am and sunset at 8:09 pm AEDT.
How many hours of sunshine does Wahroonga have in December?
In December, the average sunshine duration in Wahroonga, Australia, is 9.7h.
When is the highest UV index in Wahroonga?
The months with the highest UV index in Wahroonga, Australia, are January, February, November and December, with an average maximum UV index of 6.
What is the UV index intensity in December in Wahroonga?
In December, the average daily maximum UV index in Wahroonga is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to 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 - Wahroonga, Australia
Average temperature in December
Wahroonga, Australia
  • Average high temperature in December: 25.8°C

The warmest month (with the highest average high temperature) is January (27.3°C).
The month with the lowest average high temperature is July (16.6°C).

  • Average low temperature in December: 17.9°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 (9.7°C).

Average pressure in December - Wahroonga, Australia
Average pressure in December
Wahroonga, Australia
  • Average pressure in December: 1013.4mbar

The month with the highest atmospheric pressure is June (1020.9mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).

Average wind speed in December - Wahroonga, Australia
Average wind speed in December
Wahroonga, Australia
  • Average wind speed in December: 13.9km/h

The windiest months (with the highest average wind speed) are January and August (14km/h).
The calmest month (with the lowest average wind speed) is April (12.2km/h).

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

The month with the highest relative humidity is February (75%).
The months with the lowest relative humidity are August and September (66%).

Average rainfall in December - Wahroonga, Australia
Average rainfall in December
Wahroonga, Australia
  • Average rainfall in December: 43mm

The wettest month (with the highest rainfall) is February (92mm).
The driest month (with the least rainfall) is September (35mm).

Average rainfall days in December - Wahroonga, Australia
Average rainfall days in December
Wahroonga, Australia
  • Average rainfall days in December: 14.8 days

The month with the highest number of rainy days is March (18.8 days).
The month with the least rainy days is August (10.1 days).

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

Average sunshine days in December - Wahroonga, Australia
Average sunshine days in December
Wahroonga, Australia
  • Average sunshine days in December: 12.6 days

The month with the most sunshine days is August (17.9 days).
The month with the least sunshine days is March (8.8 days).

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

The months with the highest UV index are January, February, November 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 - Wahroonga, Australia
Average cloud cover in December
Wahroonga, 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 - Wahroonga, Australia
Average visibility in December
Wahroonga, 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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