December Weather in Sydney

By: setearning

Daily high temperatures


by 2°F , from 77°F to 79°F , rarely falling below 67°F or exceeding 90°F . Daily low temperatures increase by 3°F , from 63°F to 67°F , rarely falling below 58°F or exceeding 71°F . For reference, on January 25 , the hottest day of the year, temperatures in Sydney typically range from 68°F to 80°F , while on July 19 , the coldest day of the year, they range from 47°F to 62°F .

The month of December in Sydney experiences


cloud cover, with the percentage of time that the sky is overcast or mostly cloudy decreasing from 37% to 29% . The lowest chance of overcast or mostly cloudy conditions is 29% on December 30 .  Clouds


wet day

is one with at least 0.04 inches of liquid or liquid-equivalent precipitation. In Sydney, the chance of a wet day over the course of December is decreasing , starting the month at 28% and ending it at 22% .  Precipitation  

The average sliding 31-day rainfall during December in Sydney is

gradually decreasing , starting the month at

2.8 inches , when it rarely exceeds 5.4 inches or falls below 0.7 inches , and ending the month at 2.5 inches , when it rarely exceeds 4.6 inches or falls below 0.7 inches . .  Rain Fall 

Over the course of December in Sydney, the length of the day is

essentially constant . The shortest day of the month is

December 1 , with 14 hours, 14 minutes of daylight and the longest day is December 21 , with 14 hours, 25 minutes of daylight.  SUN

The horizontal axis is the day, the vertical axis is the hour of the day, and the colored areas indicate when the moon is above the horizon. The vertical gray bars (new Moons) and blue bars (full Moons) indicate key Moon phases.  


We base the humidity comfort level on the dew point, as it determines whether perspiration will evaporate from the skin, thereby cooling the body. Lower dew points feel drier and higher dew points feel more humid 



This section discusses the wide-area hourly average wind vector (speed and direction) at

10 meters

above the ground. The wind experienced at any given location is highly dependent on local topography and other factors, and instantaneous wind speed and direction vary more widely than hourly averages.  WIND 

The average daily incident shortwave solar energy in Sydney is

essentially constant

during December, remaining within 0.2 kWh of 7.5 kWh throughout. The highest average daily incident shortwave solar energy during December is 7.8 kWh on December 31 . Solar Energy  

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