December weather forecastMiddle Swan, Australia
December
Weather in December
December, the first month of the summer in Middle Swan, is still a warm month, with temperature in the range of an average high of 29.1°C (84.4°F) and an average low of 17°C (62.6°F).Temperature
The start of December is characterized by a subtle increase in the average high-temperature, transitioning from a warm 25.9°C (78.6°F) in November to a still moderately hot 29.1°C (84.4°F). Middle Swan, during the nights of December, registers a substantial plunge from the daytime high, averaging at an enjoyable 17°C (62.6°F).Heat index
The heat index in December is appraised at a tropical 30°C (86°F). Long-lasting exposure and activity potentially induce a sense of weariness, with the risk of heat cramps.When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'feels like' or 'apparent temperature', offers an insight into how hot it feels when we factor in moisture content. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. 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 especially vital to children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
Humidity
In Middle Swan, the average relative humidity in December is 52%.Rainfall
March and December are months with the least rain in Middle Swan when the rain falls for 4.9 days and typically aggregates up to 9mm (0.35") of rain.Daylight
The month with the longest days in Middle Swan is December, with an average of 14h and 12min of daylight.On the first day of the month, sunrise is at 5:02 am and sunset at 7:07 pm. On the last day of December, sunrise is at 5:13 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 in Middle Swan.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 risk from unsafe exposure to UV radiation for the ordinary person.Note: A typical high UV index of 6 in December suggests the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. UV radiation from the Sun is most intense between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Middle Swan, 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
Middle Swan, 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
Middle Swan, 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
Middle Swan, 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
Middle Swan, 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
Middle Swan, 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
Middle Swan, 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
Middle Swan, 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
Middle Swan, 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
Middle Swan, 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
Middle Swan, 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).
