Cool
Average highs are around 18°C, so pack for cooler days.
Weather Guide
Sydney, New South Wales, Australia Average Monthly Weather
Weather score53Mixed annual avg
Best months: December, January, February
Across the year, average daytime temperatures are around 22°C, sunshine averages 6.8h per day, and rainfall totals about 1309mm. Sea temperatures average 21°C across the year.
Annual weather
Annual averages
Temp
22°C
Rain
1309mm
Annual total
Sun
6.8h
Sea
21°C
Weather score
53
Mixed avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 96mm, so some wet days are possible.
Some sun
Sunshine averages 7.2h per day, enough for a balanced month.
Cool sea
Sea temperatures average 18°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
August18°C average high
August is on the cooler side of Sydney's year, useful if you prefer less intense daytime heat.
Warmest monthsJanuary to March and December
This stretch sets the upper range for average daytime heat.
Rain
August96mm average rain
August sits near Sydney's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJuly, September to October, and December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August7.2 hours average sun
August is brighter than Sydney's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsJanuary and August to December
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August18°C average sea
August is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaJanuary to April
Sea temperatures are usually near 23°C in this stretch, so swimming comfort is at its strongest.
Weather score
August40 weather score
August scores below Sydney's yearly average, so the weather trade-offs are more noticeable.
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