Cool
Average highs are around 18°C, so pack for cooler days.
September verdict
Adelaide, South Australia, Australia in September
Weather score41Mixed
Mixed for holiday weather
Average highs are around 18°C, so pack for cooler days. Sunshine averages 6.9h per day, enough for a balanced month. Rainfall averages 53mm, which is relatively low for holiday planning.
September weather
Monthly averages
Temp
18°C
Rain
53mm
Sun
6.9h
Sea
14°C
Weather score
41
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 53mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 6.9h per day, enough for a balanced month.
Cool sea
Sea temperatures average 14°C, so the water can feel cool.
Map
Weather map
Compare Adelaide, South Australia, Australia with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September18°C average high
September is on the cooler side of Adelaide'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
September53mm average rain
September sits near Adelaide's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to April and October to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September6.9 hours average sun
September sits close to Adelaide's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJanuary to February and December
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September14°C average sea
September is one of the coolest sea months, so the water may feel fresher than in peak months.
Warmest seaJanuary to March
Sea temperatures are usually near 22°C in this stretch, so swimming comfort is at its strongest.
Weather score
September41 weather score
September scores below Adelaide'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.
