December weather forecastDerriwong, Australia
December
Weather in December
The first month of the summer, December, is a hot month in Derriwong, Australia, with an average temperature ranging between max 30.7°C (87.3°F) and min 18.5°C (65.3°F).Temperature
The onset of December brings with it an average high-temperature of a hot 30.7°C (87.3°F), showing a negligible variation from the month before. Derriwong undergoes a major shift from daytime highs, averaging an enjoyable 18.5°C (65.3°F) during the night in December.Heat index
December's heat index is estimated at a tropical 31°C (87.8°F). If exposure and activity are sustained, they might cause a feeling of weariness, resulting in heat cramps.Factoring in the heat index, values are geared towards shaded areas with light breezes. The heat index values could be amplified by up to 15 Fahrenheit (8 Celsius) degrees in direct sunlight.
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 is subjective, varying based on their activity and individual heat perception, influenced by factors like wind, clothing, and metabolic variations. Remember, direct sunlight exposure can heighten the heat impact and might increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
Humidity
The average relative humidity in December in Derriwong, Australia, is 41%.Rainfall
In Derriwong, in December, it is raining for 6.6 days, with typically 24mm (0.94") of accumulated precipitation. Throughout the year, there are 86.7 rainfall days, and 292mm (11.5") of precipitation is accumulated.Snowfall
January through July, September through December are months without snowfall.Daylight
The month with the longest days is December, with an average of 14h and 18min of daylight.On the first day of December, sunrise is at 5:54 am and sunset at 8:04 pm. On the last day of the month, sunrise is at 6:04 am and sunset at 8:22 pm AEDT.
Sunshine
The month with the most sunshine in Derriwong is December, with an average of 10.7h of sunshine.UV index
January and December, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV rays for the average person.Note: The maximum daily UV index, 7 in December, converts into the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. The Sun's UV radiation is most intense from 10 a.m. to 4 p.m. Try to avoid direct sun exposure during these hours. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Derriwong, Australia
- Average high temperature in December: 30.7°C
The warmest month (with the highest average high temperature) is January (33.7°C).
The month with the lowest average high temperature is July (13.5°C).
- Average low temperature in December: 18.5°C
The month with the highest average low temperature is January (21.4°C).
The coldest month (with the lowest average low temperature) is August (4.6°C).
Average pressure in December
Derriwong, Australia
- Average pressure in December: 1011.6mbar
The month with the highest atmospheric pressure is June (1022.3mbar).
The month with the lowest atmospheric pressure is January (1010.5mbar).
Average wind speed in December
Derriwong, Australia
- Average wind speed in December: 13.5km/h
The windiest month (with the highest average wind speed) is September (13.8km/h).
The calmest month (with the lowest average wind speed) is April (11.8km/h).
Average humidity in December
Derriwong, Australia
- Average humidity in December: 41%
The month with the highest relative humidity is June (79%).
The month with the lowest relative humidity is January (39%).
Average rainfall in December
Derriwong, Australia
- Average rainfall in December: 24mm
The wettest month (with the highest rainfall) is November (42mm).
The driest month (with the least rainfall) is September (14mm).
Average rainfall days in December
Derriwong, Australia
- Average rainfall days in December: 6.6 days
The month with the highest number of rainy days is March (8.4 days).
The months with the least rainy days are May and September (6.1 days).
Average snowfall days in December
Derriwong, Australia
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is August (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Derriwong, Australia
- Average daylight in December: 14h and 18min
The month with the longest days is December (Average daylight: 14h and 18min).
The month with the shortest days is June (Average daylight: 10h and 0min).
- Average sunshine in December: 10h and 42min
The month with the most sunshine is December (Average sunshine: 10h and 42min).
The month with the least sunshine is June (Average sunshine: 7h and 42min).
Average sunshine days in December
Derriwong, Australia
- Average sunshine days in December: 23.2 days
The month with the most sunshine days is May (23.4 days).
The month with the least sunshine days is June (19.6 days).
Average UV index in December
Derriwong, Australia
- Average UV index in December: 7
The months with the highest UV index are January and December (UV index 7).
The months with the lowest UV index are June and August (UV index 3).
Average cloud cover in December
Derriwong, Australia
- Average cloud cover in December: 17
The month with the most cloud cover is June (Cloud cover 34).
The month with the least cloud cover is December (Cloud cover 17).
Average visibility in December
Derriwong, Australia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, October, November and December (10km).
The months with the lowest visibility are June, July, August and September (9km).
