Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
December
Weather in December
Temperature
Transitioning into December, Koolunga experiences an average high-temperature of a still warm 29.3°C (84.7°F), marking a minor shift from the preceding month. In December, Koolunga experiences a significant drop from daily zeniths to an average nighttime temperature of 16.5°C (61.7°F).Heat index
Throughout December, the heat index is appraised at 29°C (84.2°F). With ongoing exposure and activity, one might experience weariness, and heat cramps could ensue.Records show heat index calculations are tailored for shaded regions and mild winds. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. 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. Being under direct sunshine can magnify the heat experience, possibly pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
Humidity
In December, the average relative humidity in Koolunga is 43%.Rainfall
In Koolunga, in December, during 6 rainfall days, 15mm (0.59") of precipitation is typically accumulated. In Koolunga, Australia, during the entire year, the rain falls for 95.1 days and collects up to 190mm (7.48") of precipitation.Daylight
December has the longest days of the year, with an average of 14h and 18min of daylight.On the first day of December, sunrise is at 5:59 am and sunset at 8:12 pm. On the last day of the month, sunrise is at 6:09 am and sunset at 8:30 pm ACDT.
Sunshine
December has the most sunshine of the year, with an average of 10.2h of sunshine.UV index
December is the month with the highest UV index in Koolunga, Australia, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: A daily maximum UV index of 7 in December translates into the following instructions:
Enforce precautions and stick to sun safety measures. Preservation from skin and eye damage is essential. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Koolunga during December?
What is the average humidity in December in Koolunga?
How many days does it rain in December in Koolunga?
When are the longest days in Koolunga?
What is the average length of the day in December in Koolunga?
When is the sunrise / sunset in December in Koolunga?
What month has the most sunshine in Koolunga?
How many hours of sunshine does Koolunga have in December?
What is the month with the highest UV index in Koolunga?
What is the UV index intensity in December in Koolunga?
Average temperature in December
Koolunga, Australia
- Average high temperature in December: 29.3°C
The warmest month (with the highest average high temperature) is January (32°C).
The month with the lowest average high temperature is July (14.2°C).
- Average low temperature in December: 16.5°C
The month with the highest average low temperature is January (18.8°C).
The coldest month (with the lowest average low temperature) is August (5.9°C).
Average pressure in December
Koolunga, Australia
- Average pressure in December: 1012.6mbar
The month with the highest atmospheric pressure is June (1022.4mbar).
The month with the lowest atmospheric pressure is January (1011.7mbar).
Average wind speed in December
Koolunga, Australia
- Average wind speed in December: 13.3km/h
The windiest month (with the highest average wind speed) is August (13.8km/h).
The calmest month (with the lowest average wind speed) is April (11.2km/h).
Average humidity in December
Koolunga, Australia
- Average humidity in December: 43%
The month with the highest relative humidity is July (75%).
The month with the lowest relative humidity is January (40%).
Average rainfall in December
Koolunga, Australia
- Average rainfall in December: 15mm
The wettest month (with the highest rainfall) is August (28mm).
The driest month (with the least rainfall) is March (8mm).
Average rainfall days in December
Koolunga, Australia
- Average rainfall days in December: 6 days
The month with the highest number of rainy days is August (11.3 days).
The month with the least rainy days is February (4.6 days).
Average daylight in December /
Average sunshine in December
Koolunga, Australia
- Average daylight in December: 14h and 2min
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 1min
The month with the most sunshine is December (Average sunshine: 10h and 12min).
The month with the least sunshine is August (Average sunshine: 7h and 18min).
Average sunshine days in December
Koolunga, Australia
- Average sunshine days in December: 22.3 days
The month with the most sunshine days is January (23.8 days).
The month with the least sunshine days is August (16.8 days).
Average UV index in December
Koolunga, Australia
- Average UV index in December: 7
The month with the highest UV index is December (UV index 7).
The month with the lowest UV index is June (UV index 3).
Average cloud cover in December
Koolunga, Australia
- Average cloud cover in December: 19
The months with the most cloud cover are June, July and August (Cloud cover 37).
The month with the least cloud cover is January (Cloud cover 15).
Average visibility in December
Koolunga, Australia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, November and December (10km).
The months with the lowest visibility are May, June, July, August, September and October (9km).
