December weather forecastCooyar, Australia
December
Weather in December
The first month of the summer, December, is also a moderately hot month in Cooyar, Australia, with an average temperature varying between 28.7°C (83.7°F) and 17.4°C (63.3°F).Temperature
Cooyar experiences an average high-temperature of a still moderately hot 28.7°C (83.7°F) in December, marking an insignificant shift from 28.5°C (83.3°F) in November. Cooyar's average low-temperature for the month of December records at a refreshing 17.4°C (63.3°F).Heat index
The average heat index in December is evaluated at a hot 32°C (89.6°F). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.Note that heat index values are valued for light wind and location in the shade. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'feels like', binds temperature metrics with humidity values to give a sense of the actual warmth. The impact of weather on an individual can be subjective, affected by the person's activity and heat perception, which can vary due to elements including wind, clothing, and metabolic differences. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular 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
In December, the average relative humidity in Cooyar is 72%.Rainfall
The month with the most rainfall in Cooyar, Australia, is December, when the rain falls for 17.7 days and typically aggregates up to 78mm (3.07") of precipitation.Daylight
The month with the longest days is December, with an average of 13h and 48min of daylight.On the first day of the month, sunrise is at 4:50 am and sunset at 6:33 pm. On the last day of December, sunrise is at 5:01 am and sunset at 6:50 pm AEST.
Sunshine
In December, the average sunshine in Cooyar is 9.6h.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 reading of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high daily UV index of 6 during December translates into the following directions:
Guard oneself from overexposure. Defence against sun injury is vital. 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. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Cooyar, Australia
- Average high temperature in December: 28.7°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 (17.8°C).
- Average low temperature in December: 17.4°C
The month with the highest average low temperature is January (18.2°C).
The coldest month (with the lowest average low temperature) is July (7.9°C).
Average pressure in December
Cooyar, Australia
- Average pressure in December: 1012.7mbar
The month with the highest atmospheric pressure is July (1021mbar).
The month with the lowest atmospheric pressure is January (1011.7mbar).
Average wind speed in December
Cooyar, Australia
- Average wind speed in December: 10.7km/h
The windiest month (with the highest average wind speed) is February (11.3km/h).
The calmest months (with the lowest average wind speed) are April and May (9.6km/h).
Average humidity in December
Cooyar, Australia
- Average humidity in December: 72%
The month with the highest relative humidity is March (80%).
The month with the lowest relative humidity is September (67%).
Average rainfall in December
Cooyar, Australia
- Average rainfall in December: 78mm
The wettest month (with the highest rainfall) is December (78mm).
The driest month (with the least rainfall) is July (15mm).
Average rainfall days in December
Cooyar, Australia
- Average rainfall days in December: 17.7 days
The month with the highest number of rainy days is March (20 days).
The month with the least rainy days is August (8.3 days).
Average daylight in December /
Average sunshine in December
Cooyar, Australia
- Average daylight in December: 13h and 48min
The month with the longest days is December (Average daylight: 13h and 48min).
The month with the shortest days is June (Average daylight: 10h and 30min).
- Average sunshine in December: 9h and 36min
The month with the most sunshine is November (Average sunshine: 10h and 18min).
The month with the least sunshine is June (Average sunshine: 5h and 54min).
Average sunshine days in December
Cooyar, Australia
- Average sunshine days in December: 9.5 days
The month with the most sunshine days is August (20.1 days).
The month with the least sunshine days is February (5.8 days).
Average UV index in December
Cooyar, 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 April, May, June, July and August (UV index 4).
Average cloud cover in December
Cooyar, Australia
- Average cloud cover in December: 46
The month with the most cloud cover is March (Cloud cover 55).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Cooyar, Australia
- Average visibility in December: 8km
The month with the highest visibility is September (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, October, November and December (8km).





