Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The commencement of December sees a minor shift in the average high-temperature, moving from 25.9°C (78.6°F) in November to a still moderately hot 29.1°C (84.4°F). Mundaring Weir notes a substantial temperature decline from the daytime peaks throughout December, with an average nighttime temperature of 17°C (62.6°F).Heat index
December's mean heat index is appraised at a tropical 30°C (86°F). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.Consider that heat index readings are for situations in the shade and light wind. Exposure to the direct sun could elevate the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', blends air temperature and moisture content to represent the felt temperature to humans. Additional elements including metabolic differences, the level of physical activity, and attire have a role in shaping the individual's temperature perception. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
Humidity
In December, the average relative humidity is 52%.Rainfall
March and December are months with the least rain when the rain falls for 4.9 days and typically aggregates up to 9mm (0.35") of rain.Daylight
With an average of 14h and 12min of daylight, December has the longest days of the year in Mundaring Weir.On the first day of the month, sunrise is at 5:01 am and sunset at 7:06 pm. On the last day of December, sunrise is at 5:12 am and sunset at 7:24 pm AWST.
Sunshine
January and December, with an average of 11.5h of sunshine, are months with the most sunshine.UV index
The months with the highest UV index are January through March and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: In December, an average UV index of 6 transforms into the following instructions:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Attempt to stay under shade and limit exposure to the Sun between 10 a.m. and 4 p.m., when UV radiation is at its peak. Remember, devices such as parasols or canopies might not provide complete sun protection. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Frequently asked questions
Is it hot in Mundaring Weir during December?
What is the average humidity in December in Mundaring Weir?
What is the driest month in Mundaring Weir?
How many days does it rain in December in Mundaring Weir?
When are the longest days in Mundaring Weir?
How many hours of daylight does Mundaring Weir have in December?
What time are sunrise and sunset in December in Mundaring Weir?
What is the month with the most sunshine in Mundaring Weir?
How many hours of sunshine does Mundaring Weir have in December?
When is the highest UV index in Mundaring Weir?
What is the UV index intensity in December in Mundaring Weir?
Average temperature in December
Mundaring Weir, Australia
- Average high temperature in December: 29.1°C
The warmest months (with the highest average high temperature) are January and February (30.8°C).
The month with the lowest average high temperature is July (17°C).
- Average low temperature in December: 17°C
The month with the highest average low temperature is February (19°C).
The coldest months (with the lowest average low temperature) are July and August (10°C).
Average pressure in December
Mundaring Weir, Australia
- Average pressure in December: 1012.4mbar
The month with the highest atmospheric pressure is July (1020.6mbar).
The month with the lowest atmospheric pressure is January (1011.3mbar).
Average wind speed in December
Mundaring Weir, Australia
- Average wind speed in December: 14.3km/h
The windiest month (with the highest average wind speed) is January (14.6km/h).
The calmest months (with the lowest average wind speed) are April and May (12km/h).
Average humidity in December
Mundaring Weir, Australia
- Average humidity in December: 52%
The months with the highest relative humidity are July and August (74%).
The month with the lowest relative humidity is January (51%).
Average rainfall in December
Mundaring Weir, Australia
- Average rainfall in December: 9mm
The wettest month (with the highest rainfall) is June (65mm).
The driest months (with the least rainfall) are March and December (9mm).
Average rainfall days in December
Mundaring Weir, Australia
- Average rainfall days in December: 4.9 days
The month with the highest number of rainy days is July (15.2 days).
The month with the least rainy days is February (3.9 days).
Average daylight in December /
Average sunshine in December
Mundaring Weir, Australia
- Average daylight in December: 14h and 1min
The month with the longest days is December (Average daylight: 14h and 12min).
The month with the shortest days is June (Average daylight: 10h and 6min).
- Average sunshine in December: 11h and 3min
The months with the most sunshine are January and December (Average sunshine: 11h and 30min).
The month with the least sunshine is August (Average sunshine: 5h and 42min).
Average sunshine days in December
Mundaring Weir, Australia
- Average sunshine days in December: 25.1 days
The month with the most sunshine days is December (25.1 days).
The month with the least sunshine days is July (13.6 days).
Average UV index in December
Mundaring Weir, Australia
- Average UV index in December: 6
The months with the highest UV index are January, February, March and December (UV index 6).
The months with the lowest UV index are May, June, July and August (UV index 4).
Average cloud cover in December
Mundaring Weir, Australia
- Average cloud cover in December: 15
The month with the most cloud cover is July (Cloud cover 40).
The month with the least cloud cover is January (Cloud cover 13).
Average visibility in December
Mundaring Weir, Australia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (10km).
The month with the lowest visibility is August (9km).
Mundaring Weir, Australia
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