December weather forecastYarrawarrah, Australia
December
Weather in December
December, the first month of the summer in Yarrawarrah, is still a warm month, with an average temperature fluctuating between 27.7°C (81.9°F) and 17.1°C (62.8°F).Temperature
December's presence marks an average high-temperature of a still moderately hot 27.7°C (81.9°F), subtly varied from November's 26.2°C (79.2°F). Yarrawarrah, during the nights of December, experiences an average temperature drop to an enjoyable 17.1°C (62.8°F).Heat index
In December, the heat index is estimated at a hot 30°C (86°F). If one remains active during constant exposure, it might cause exhaustion and heat cramps.It is essential to grasp that the heat index's numbers are for shade and light wind settings. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is achieved by amalgamating air temperature with the relative humidity readings. The individual's temperature perception can be influenced by numerous factors such as metabolic variations, physical activity, and clothing. It is important to note that direct sunlight can intensify the weather impact, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly relevant to children. Young individuals are generally in more danger than adults due to their lower capacity to sweat. Moreover, their large skin surface in relation to their small bodies and the increased heat generation from their activities makes them more vulnerable.
Humidity
In December, the average relative humidity is 68%.Rainfall
In Yarrawarrah, during December, the rain falls for 12.5 days and regularly aggregates up to 33mm (1.3") of precipitation. Throughout the year, there are 138.7 rainfall days, and 508mm (20") of precipitation is accumulated.Daylight
December has the longest days of the year, with an average of 14h and 24min of daylight.On the first day of December, sunrise is at 5:37 am and sunset at 7:52 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:10 pm AEDT.
Sunshine
The average sunshine in December in Yarrawarrah is 9.3h.UV index
The months with the highest UV index in Yarrawarrah are January, February, November 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 the average person.Note: A daily maximum UV index of 6 in December translates into the following instructions:
Incorporate safeguards and honour sun safety principles. Protection from skin and eye damage is obligatory. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Yarrawarrah, 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
Yarrawarrah, 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
Yarrawarrah, 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
Yarrawarrah, 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
Yarrawarrah, 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
Yarrawarrah, 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
Yarrawarrah, 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
Yarrawarrah, 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
Yarrawarrah, 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
Yarrawarrah, 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
Yarrawarrah, 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).
