December weather forecast
Valley Heights, Australia

December

Weather in December

December, the first month of the summer in Valley Heights, is still a warm month, with an average temperature ranging between min 15.8°C (60.4°F) and max 28.2°C (82.8°F).

Temperature

The introduction of December notes a subtle temperature variation to a still moderately hot 28.2°C (82.8°F) from November's 26.4°C (79.5°F). Valley Heights witnesses a consistent, sharp contrast from the daytime highs, with an average low-temperature of 15.8°C (60.4°F) throughout December.

Heat index

December's mean heat index is appraised at a hot 31°C (87.8°F). If one sustains activity during exposure, it could lead to a sense of fatigue, with a chance of heat cramps.
Heat index values are typically calculated for conditions of shade and a light breeze. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', integrates the air's temperature and its humidity to showcase the felt temperature by people. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.

Humidity

In December, the average relative humidity is 68%.

Rainfall

In December, in Valley Heights, the rain falls for 12.4 days. Throughout December, 34mm (1.34") of precipitation is accumulated. In Valley Heights, during the entire year, the rain falls for 137.7 days and collects up to 501mm (19.72") of precipitation.

Daylight

With an average of 14h and 18min of daylight, December has the longest days of the year.
On the first day of the month, sunrise is at 5:40 am and sunset at 7:53 pm. On the last day of December, in Valley Heights, sunrise is at 5:50 am and sunset at 8:11 pm AEDT.

Sunshine

November and December, with an average of 9.8h of sunshine, are months with the most sunshine in Valley Heights.

UV index

January, February, November and December, with an average maximum UV index of 6, are months with the highest UV index in Valley Heights. A UV Index reading of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 6 in December, converts into the following recommendations:
Uphold preventive measures and conform to sun safety guidelines. Defending against skin and eye harm is crucial. Try to minimize direct Sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Also note that objects like parasols or canopies might not provide complete sun protection. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.

Frequently asked questions

Is it hot in Valley Heights during December?
The average high-temperature and low-temperature in Valley Heights, Australia, during December are 28.2°C (82.8°F) and 15.8°C (60.4°F) respectively. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, in December is appraised at 31°C (87.8°F).
What is the average humidity in December in Valley Heights?
In December, the average relative humidity in Valley Heights is 68%.
How many days does it rain in December in Valley Heights?
In Valley Heights, Australia, during December, the rain falls for 12.4 days and regularly aggregates up to 34mm (1.34") of precipitation.
When are the longest days in Valley Heights?
December has the longest days of the year in Valley Heights, Australia, with an average of 14h and 18min of daylight.
What is the average length of the day in December in Valley Heights?
In December, the average day length in Valley Heights, Australia, is 14h and 21min.
When are sunrise and sunset in December in Valley Heights?
In December, on the first day of the month, sunrise is at 5:40 am and sunset at 7:53 pm. On the last day of the month, in Valley Heights, Australia, sunrise is at 5:50 am and sunset at 8:11 pm AEDT.
What is the month with the most sunshine in Valley Heights?
The months with the most sunshine are November and December, with an average of 9.8h of sunshine.
How long on average sun shines in December in Valley Heights?
The average sunshine duration in December in Valley Heights, Australia, is 9.8h.
What is the month with the highest UV index in Valley Heights?
January, February, November and December, with an average maximum UV index of 6, are months with the highest UV index in Valley Heights, Australia.
How high is the UV index in December in Valley Heights?
In Valley Heights, the average daily maximum UV index in December is 6. A UV Index value of 6 to 7 symbolizes a high hazard to health from unsafe exposure to Sun's UV rays.
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 - Valley Heights, Australia
Average temperature in December
Valley Heights, Australia
  • Average high temperature in December: 28.2°C

The warmest month (with the highest average high temperature) is January (29.6°C).
The month with the lowest average high temperature is June (16°C).

  • Average low temperature in December: 15.8°C

The month with the highest average low temperature is January (17.4°C).
The coldest month (with the lowest average low temperature) is July (6.3°C).

Average pressure in December - Valley Heights, Australia
Average pressure in December
Valley Heights, Australia
  • Average pressure in December: 1013.3mbar

The month with the highest atmospheric pressure is June (1021.2mbar).
The month with the lowest atmospheric pressure is January (1012.8mbar).

Average wind speed in December - Valley Heights, Australia
Average wind speed in December
Valley Heights, Australia
  • Average wind speed in December: 8km/h

The windiest month (with the highest average wind speed) is September (8.3km/h).
The calmest month (with the lowest average wind speed) is April (7km/h).

Average humidity in December - Valley Heights, Australia
Average humidity in December
Valley Heights, Australia
  • Average humidity in December: 68%

The month with the highest relative humidity is June (78%).
The month with the lowest relative humidity is September (66%).

Average rainfall in December - Valley Heights, Australia
Average rainfall in December
Valley Heights, Australia
  • Average rainfall in December: 34mm

The wettest month (with the highest rainfall) is February (101mm).
The driest month (with the least rainfall) is May (22mm).

Average rainfall days in December - Valley Heights, Australia
Average rainfall days in December
Valley Heights, Australia
  • Average rainfall days in December: 12.4 days

The month with the highest number of rainy days is March (16.3 days).
The month with the least rainy days is August (6.7 days).

Average daylight in December / Average sunshine in December - Valley Heights, Australia
Average daylight in December /
Average sunshine in December
Valley Heights, 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 5min

The months with the most sunshine are November and December (Average sunshine: 9h and 48min).
The month with the least sunshine is June (Average sunshine: 6h and 0min).

Average sunshine days in December - Valley Heights, Australia
Average sunshine days in December
Valley Heights, Australia
  • Average sunshine days in December: 14.4 days

The month with the most sunshine days is August (22.7 days).
The month with the least sunshine days is February (10 days).

Average UV index in December - Valley Heights, Australia
Average UV index in December
Valley Heights, 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 April, May, June, July, August and September (UV index 4).

Average cloud cover in December - Valley Heights, Australia
Average cloud cover in December
Valley Heights, Australia
  • Average cloud cover in December: 38

The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 25).

Average visibility in December - Valley Heights, Australia
Average visibility in December
Valley Heights, Australia
  • Average visibility in December: 9km

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

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