December weather forecastSwan View, Australia

December

Weather in December

The first month of the summer, December, is also a moderately hot month in Swan View, Australia, with an average temperature ranging between max 29.1°C (84.4°F) and min 17°C (62.6°F).

Temperature

The arrival of December signals a slight increase in the average high-temperature, moving from a moderately hot 25.9°C (78.6°F) in November to a still warm 29.1°C (84.4°F). A noteworthy temperature dip to a refreshing 17°C (62.6°F) is observed during the nights of December.

Heat index

The heat index value during December is computed to be a tropical 30°C (86°F). Unrelenting activity during exposure could cause fatigue and potentially lead to heat cramps.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. In the presence of direct sunshine, the heat index could be augmented by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', reflects the feeling of heat when considering both air temperature and humidity. One's perception of temperature can vary depending on physical activity and individual heat sensitivity, influenced by factors like wind, attire, and metabolic variations. Direct exposure to the sun's rays can enhance the felt temperature, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.

Humidity

The average relative humidity in December 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.
On the first day of December in Swan View, sunrise is at 5:02 am and sunset at 7:07 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

The months with the highest UV index are January through March and December, with an average maximum UV index of 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, a daily UV index of 6 turns into the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. 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. Boost your sun resistance with garments that are densely woven yet spacious.

Updated: Aug 5, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Swan View, in December, the average high-temperature is 29.1°C (84.4°F), and the average low-temperature is 17°C (62.6°F). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in December is computed to be 30°C (86°F).

In December, the average relative humidity is 52%.

The months with the least rainfall are March and December Rain falls for 4.9 days and accumulates 9mm (0.35") of rain.

In Swan View, in December, during 4.9 rainfall days, 9mm (0.35") of precipitation is typically accumulated.

With an average of 14h and 12min of daylight, December has the longest days of the year in Swan View.

In December, the average day length is 14h and 11min.

On the first day of December, sunrise is at 5:02 am and sunset at 7:07 pm. On the last day of the month, sunrise is at 5:12 am and sunset at 7:24 pm AWST.

January and December, with an average of 11.5h of sunshine, are months with the most sunshine.

In December, the average sunshine duration is 11.5h.

January through March and December, with an average maximum UV index of 6, are months with the highest UV index.

In December, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.

Today

Tomorrow

Long-term

Year J F M A M J J A S O N December

Nov

December

Jan

Average high temperature

25.9°C

29.1°C

30.8°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

15.4km/h

15.7km/h

15.9km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

21.7

25.1

24.3

Average UV index

Average cloud cover

Average visibility

Average temperature in December
Swan View, 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
Swan View, 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
Swan View, 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
Swan View, 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
Swan View, 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
Swan View, 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
Swan View, 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
Swan View, 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
Swan View, 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
Swan View, 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
Swan View, 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).