Cool
Average highs are around 18°C, so pack for cooler days.
Weather Guide
Whyalla, Australia Average Monthly Weather
Weather score62Good annual avg
Best months: January, February, December
Across the year, average daytime temperatures are around 24°C, sunshine averages 8.2h per day, and rainfall totals about 294mm. Sea temperatures average 18°C across the year.
Annual weather
Annual averages
Temp
24°C
Rain
294mm
Annual total
Sun
8.2h
Sea
18°C
Weather score
62
Good avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
SwimSwim
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 26mm, 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 13°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
August18°C average high
August has some of the coolest average daytime highs of the year, so pack for fresher conditions.
Warmest monthsJanuary to March and December
This stretch sets the upper range for average daytime heat.
Rain
August26mm average rain
August 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
August6.9 hours average sun
August is below Whyalla's yearly sunshine average, so bright-day planning is less reliable than in peak months.
Brightest monthsJanuary to February and November to December
This stretch has the strongest sunshine in the monthly averages.
Sea temperature
August13°C average sea
August is one of the coolest sea months, so the water may feel fresher than in peak months.
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
August40 weather score
August is one of the weakest weather-score months, when the overall mix is less favourable than the rest of the year.
Best weather monthsJanuary to March and December
These months have the strongest weather score in the monthly averages.
