December weather forecastThirroul, Australia
December
Weather in December
December, the first month of the summer in Thirroul, is a warm month, with an average temperature varying between 17.5°C (63.5°F) and 24.1°C (75.4°F).Temperature
Thirroul's average high-temperature marks a warm 24.1°C (75.4°F) with the advent of December, closely mirroring that of the preceding month. In December, Thirroul's temperature tends to fall to an average low of 17.5°C (63.5°F) during the night.Humidity
In December, the average relative humidity in Thirroul is 74%.Rainfall
In Thirroul, in December, it is raining for 15.5 days, with typically 56mm (2.2") of accumulated precipitation. In Thirroul, during the entire year, the rain falls for 169 days and collects up to 678mm (26.69") of precipitation.Daylight
December has the longest days of the year, with an average of 14h and 24min of daylight.On the first day of December in Thirroul, sunrise is at 5:37 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 5:47 am and sunset at 8:11 pm AEDT.
Sunshine
In Thirroul, the average sunshine in December is 9.7h.UV index
The months with the highest UV index are January and December, with an average maximum UV index of 6. A UV Index reading of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.Note: In December, a daily maximum UV index of 6 leads to the following instructions:
Persist with safeguards and heed sun safety doctrines. Keeping sunburn at bay is of prime importance. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Thirroul, Australia
- Average high temperature in December: 24.1°C
The warmest month (with the highest average high temperature) is January (25.7°C).
The month with the lowest average high temperature is July (15.7°C).
- Average low temperature in December: 17.5°C
The months with the highest average low temperature are January and February (19°C).
The coldest month (with the lowest average low temperature) is July (9.7°C).
Average pressure in December
Thirroul, Australia
- Average pressure in December: 1013.3mbar
The month with the highest atmospheric pressure is June (1020.8mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).
Average wind speed in December
Thirroul, Australia
- Average wind speed in December: 14.7km/h
The windiest month (with the highest average wind speed) is August (16.2km/h).
The calmest month (with the lowest average wind speed) is April (13.9km/h).
Average humidity in December
Thirroul, Australia
- Average humidity in December: 74%
The month with the highest relative humidity is February (77%).
The month with the lowest relative humidity is August (67%).
Average rainfall in December
Thirroul, Australia
- Average rainfall in December: 56mm
The wettest month (with the highest rainfall) is February (97mm).
The driest month (with the least rainfall) is September (33mm).
Average rainfall days in December
Thirroul, Australia
- Average rainfall days in December: 15.5 days
The month with the highest number of rainy days is March (18.3 days).
The month with the least rainy days is August (9.5 days).
Average daylight in December /
Average sunshine in December
Thirroul, 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 42min
The month with the most sunshine is November (Average sunshine: 9h and 48min).
The month with the least sunshine is June (Average sunshine: 5h and 54min).
Average sunshine days in December
Thirroul, Australia
- Average sunshine days in December: 10.5 days
The month with the most sunshine days is August (19.5 days).
The month with the least sunshine days is February (7.9 days).
Average UV index in December
Thirroul, Australia
- Average UV index in December: 6
The months with the highest UV index are January 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
Thirroul, Australia
- Average cloud cover in December: 38
The month with the most cloud cover is February (Cloud cover 43).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in December
Thirroul, Australia
- Average visibility in December: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).





