December weather forecastIllawong, Australia
December
Weather in December
December, the first month of the summer in Illawong, is also a moderately hot month, with an average temperature varying between 27.7°C (81.9°F) and 17.1°C (62.8°F).Temperature
November's transformation into December witnesses an average high-temperature of a still moderately hot 27.7°C (81.9°F), noting a minor change from the preceding month. Illawong's temperature drops to an average low of 17.1°C (62.8°F) during the nights of December.Heat index
The heat index value during December is appraised at a tropical 30°C (86°F). Continuing activity during long-lasting exposure might induce tiredness and result in heat cramps.Given the heat index, its values are aligned with shaded sites and gentle winds. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', quantifies the warmth felt when relative humidity is considered. An individual's temperature experience can be influenced by extra factors, including metabolic differences, activity levels, and clothing. 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 highly critical to babies and toddlers. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
Humidity
The average relative humidity in December in Illawong is 68%.Rainfall
In Illawong, in December, during 12.5 rainfall days, 33mm (1.3") of precipitation is typically accumulated. Throughout the year, in Illawong, Australia, there are 138.7 rainfall days, and 508mm (20") of precipitation is accumulated.Daylight
With an average of 14h and 24min of daylight, December has the longest days of the year in Illawong.On the first day of the month, sunrise is at 5:37 am and sunset at 7:52 pm. On the last day of December, in Illawong, sunrise is at 5:47 am and sunset at 8:10 pm AEDT.
Sunshine
In December, the average sunshine in Illawong is 9.3h.UV index
January, February, November and December, with an average maximum UV index of 6, are months with the highest UV index. A UV Index of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum high daily UV index of 6 during December translates into the following directions:
Employ safeguards and advocate sun safety protocols. Shielding against skin and eye damage is crucial. UV radiation from the sun is at its strongest between 10 a.m. and 4 p.m. Try to limit direct exposure during these hours. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Illawong, Australia
- Average high temperature in December: 27.7°C
The warmest month (with the highest average high temperature) is January (29.3°C).
The month with the lowest average high temperature is June (16.8°C).
- Average low temperature in December: 17.1°C
The month with the highest average low temperature is January (18.8°C).
The coldest month (with the lowest average low temperature) is July (8°C).
Average pressure in December
Illawong, Australia
- Average pressure in December: 1013.3mbar
The month with the highest atmospheric pressure is June (1021mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).
Average wind speed in December
Illawong, Australia
- Average wind speed in December: 10.2km/h
The windiest months (with the highest average wind speed) are January, September and December (10.2km/h).
The calmest month (with the lowest average wind speed) is April (8.8km/h).
Average humidity in December
Illawong, Australia
- Average humidity in December: 68%
The month with the highest relative humidity is June (76%).
The month with the lowest relative humidity is September (65%).
Average rainfall in December
Illawong, Australia
- Average rainfall in December: 33mm
The wettest month (with the highest rainfall) is February (83mm).
The driest months (with the least rainfall) are May and September (26mm).
Average rainfall days in December
Illawong, Australia
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is February (15.8 days).
The month with the least rainy days is August (7.3 days).
Average daylight in December /
Average sunshine in December
Illawong, Australia
- Average daylight in December: 14h and 24min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in December: 9h and 18min
The month with the most sunshine is November (Average sunshine: 9h and 24min).
The month with the least sunshine is June (Average sunshine: 5h and 48min).
Average sunshine days in December
Illawong, Australia
- Average sunshine days in December: 15.8 days
The month with the most sunshine days is August (22.7 days).
The month with the least sunshine days is February (10.6 days).
Average UV index in December
Illawong, Australia
- Average UV index in December: 6
The months with the highest UV index are January, February, November and December (UV index 6).
The months with the lowest UV index are May, June, July, August and September (UV index 4).
Average cloud cover in December
Illawong, Australia
- Average cloud cover in December: 41
The month with the most cloud cover is February (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 25).
Average visibility in December
Illawong, Australia
- Average visibility in December: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
