Mild
Average highs are around 26°C, so days are mild rather than hot.
December verdict
Sydney, New South Wales, Australia in December
Weather score67Good
Good for holiday weather
Average highs are around 26°C, so days are mild rather than hot. Sunshine averages 7.7h per day, enough for a balanced month. Rainfall averages 86mm, so some wet days are possible.
December weather
Monthly averages
Temp
26°C
Rain
86mm
Sun
7.7h
Sea
21°C
Weather score
67
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 86mm, so some wet days are possible.
Some sun
Sunshine averages 7.7h per day, enough for a balanced month.
Cool sea
Sea temperatures average 21°C, so the water can feel cool.
Map
Weather map
Compare Sydney, New South Wales, Australia with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
December26°C average high
December is one of Sydney's warmest months, with daytime heat above the yearly average.
Warmest monthsJanuary to March and December
This stretch sets the upper range for average daytime heat.
Rain
December86mm average rain
December sits on the drier side of Sydney's year, which helps with sightseeing and transfers.
Driest monthsJuly, September to October, and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
December7.7 hours average sun
December is one of Sydney's sunniest months, with some of the strongest bright-day conditions in the yearly averages.
Brightest monthsJanuary and August to December
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
December21°C average sea
December is close to Sydney's yearly sea-temperature average, so swimming comfort is fairly typical.
Warmest seaJanuary to April
Sea temperatures are usually near 23°C in this stretch, so swimming comfort is at its strongest.
Weather score
December67 weather score
December is one of Sydney's best weather-score months, combining the strongest overall balance in the yearly averages.
Best weather monthsJanuary to March and December
These months have the strongest weather score in the monthly averages.
Hotels in Sydney, New South Wales, Australia
Marriott
W SydneySydney, New South Wales, Australia
Sydney Harbour Marriott Hotel at Circular QuaySydney, New South Wales, Australia
Sheraton Grand Sydney Hyde ParkSydney, New South Wales, Australia
Pier One Sydney Harbour, Autograph CollectionSydney, New South Wales, Australia
Four Points by Sheraton Sydney, Central ParkSydney, New South Wales, Australia