December weather forecastMundaring, Australia
December
Weather in December
December, the first month of the summer in Mundaring, is also a moderately hot month, with an average temperature ranging between min 17°C (62.6°F) and max 29.1°C (84.4°F).Temperature
The arrival of December witnesses a small shift in the average high-temperature, moving from 25.9°C (78.6°F) in November to a still warm 29.1°C (84.4°F). Mundaring encounters a significant temperature differential, with an average low-temperature of 17°C (62.6°F) during December nights.Heat index
The average heat index in December is calculated to be a hot 30°C (86°F). Staying active during long-term exposure might result in a state of exhaustion and cause heat cramps.Heat index readings emphasize conditions of light breezes and shaded spots. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is the result of factoring in humidity to the air temperature, indicating perceived warmth. Elements such as metabolic variations, pregnancy, and physical exertion can shape one's weather perception. Exposure to direct sun rays can influence the heat you feel, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
Humidity
In Mundaring, the average relative humidity in December is 52%.Rainfall
The months with the least rainfall in Mundaring are March and December Rain falls for 4.9 days and accumulates 9mm (0.35") of rain.Daylight
With an average of 14h and 12min of daylight, December has the longest days of the year.On the first day of December, sunrise is at 5:02 am and sunset at 7:06 pm. On the last day of the month, 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
January through March and December, with an average maximum UV index of 6, are months with the highest UV index in Mundaring. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe exposure to UV radiation for the average person.Note: A typical high UV index of 6 in December suggests the following recommendations:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mundaring, 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, 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, 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, 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, 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, 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, Australia
- Average daylight in December: 14h and 12min
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 30min
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, 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, 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, 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, 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).
