Mild
Average highs are around 21°C, so days are mild rather than hot.
September verdict
Whyalla, Australia in September
Weather score48Mixed
Mixed for holiday weather
Average highs are around 21°C, so days are mild rather than hot. Sunshine averages 7.8h per day, enough for a balanced month. Rainfall averages 29mm, which is relatively low for holiday planning.
September weather
Monthly averages
Temp
21°C
Rain
29mm
Sun
7.8h
Sea
15°C
Weather score
48
Mixed
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 29mm, which is relatively low for holiday planning.
Some sun
Sunshine averages 7.8h per day, enough for a balanced month.
Cool sea
Sea temperatures average 15°C, so the water can feel cool.
Map
Weather map
Compare Whyalla, Australia with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September21°C average high
September is on the cooler side of Whyalla'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
September29mm average rain
September is close to Whyalla's usual rainfall pattern, with little seasonal change across the year.
Driest monthsAll year
Rainfall stays comparatively low through the year.
Sun
September7.8 hours average sun
September sits close to Whyalla's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsJanuary to February and November to December
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
September15°C average sea
September is below Whyalla's yearly sea-temperature average, so swimming can feel fresher.
Warmest seaJanuary to March and December
Sea temperatures are usually near 23°C in this stretch, so swimming comfort is at its strongest.
Weather score
September48 weather score
September scores below Whyalla'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.
