December weather forecastPenong, Australia
December
Weather in December
The first month of the summer, December, is also a moderately hot month in Penong, Australia, with an average temperature fluctuating between 18.4°C (65.1°F) and 27.3°C (81.1°F).Temperature
The advent of December reveals an average high-temperature of a still moderately hot 27.3°C (81.1°F), showing minimal difference from the prior month. Throughout December, the average low-temperature dips to a comfortable 18.4°C (65.1°F).Heat index
The heat index for December is computed to be 28°C (82.4°F). One might feel worn out with persistent exposure and activity, resulting in heat cramps.Note that heat index values are valued for light wind and location in the shade. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', evaluates the perceived heat by adding the effect of moisture in the air. Additional elements encompassing metabolic differences, the degree of physical activity, and attire can impact the individual's perception of temperature. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones are generally more prone to risk than adults due to their reduced ability to sweat. Their large skin surface area relative to their diminutive bodies and elevated heat production from their activities further enhance this risk.
Humidity
The least humid month is December, with an average relative humidity of 53%.Rainfall
In Penong, Australia, in December, it is raining for 6.2 days, with typically 14mm (0.55") of accumulated precipitation. Throughout the year, there are 103.6 rainfall days, and 213mm (8.39") of precipitation is accumulated.Daylight
December has the longest days of the year, with an average of 14h and 12min of daylight.On the first day of the month, sunrise is at 6:24 am and sunset at 8:29 pm. On the last day of December, sunrise is at 6:34 am and sunset at 8:47 pm ACDT.
Sunshine
The average sunshine in December in Penong is 9.2h.UV index
With an average maximum UV index of 7, December is the month with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for the average person.Note: The UV index of 7 in December translates into these instructions:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Penong, Australia
- Average high temperature in December: 27.3°C
The warmest month (with the highest average high temperature) is January (28.7°C).
The month with the lowest average high temperature is July (16.8°C).
- Average low temperature in December: 18.4°C
The month with the highest average low temperature is January (19.5°C).
The coldest month (with the lowest average low temperature) is August (11.1°C).
Average pressure in December
Penong, Australia
- Average pressure in December: 1012.9mbar
The month with the highest atmospheric pressure is June (1022.6mbar).
The month with the lowest atmospheric pressure is January (1012.1mbar).
Average wind speed in December
Penong, Australia
- Average wind speed in December: 20.9km/h
The windiest month (with the highest average wind speed) is January (21.4km/h).
The calmest month (with the lowest average wind speed) is April (16.8km/h).
Average humidity in December
Penong, Australia
- Average humidity in December: 53%
The months with the highest relative humidity are June, July and August (63%).
The month with the lowest relative humidity is December (53%).
Average rainfall in December
Penong, Australia
- Average rainfall in December: 14mm
The wettest months (with the highest rainfall) are August and November (24mm).
The driest month (with the least rainfall) is September (12mm).
Average rainfall days in December
Penong, Australia
- Average rainfall days in December: 6.2 days
The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is February (5.2 days).
Average daylight in December /
Average sunshine in December
Penong, 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: 9h and 12min
The month with the most sunshine is February (Average sunshine: 9h and 18min).
The months with the least sunshine are May and June (Average sunshine: 8h and 0min).
Average sunshine days in December
Penong, Australia
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is January (22.3 days).
The month with the least sunshine days is July (14.8 days).
Average UV index in December
Penong, Australia
- Average UV index in December: 7
The month with the highest UV index is December (UV index 7).
The months with the lowest UV index are May, June, July and August (UV index 4).
Average cloud cover in December
Penong, Australia
- Average cloud cover in December: 20
The months with the most cloud cover are May, June and July (Cloud cover 31).
The month with the least cloud cover is February (Cloud cover 18).
Average visibility in December
Penong, Australia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





