Whyalla Temperature by Month
Whyalla, South Australia, Australia has an average annual maximum temperature of 25°C (77°F), ranging from 18°C (64°F) in July to 32°C (90°F) in January. Below you'll find a full monthly breakdown and a comparison with cities worldwide.
Whyalla Monthly Temperatures
The climate in Whyalla is dynamic, ranging widely from moderate in winter to very warm in summer. Nights are significantly colder, with lows dropping from 19°C (66°F) in January to 8°C (46°F) in July.
The chart below illustrates the average maximum day and minimum night temperatures in Whyalla by month:
Low temperatures are most often recorded between 4 AM and 6 AM, while highs typically occur around 3 PM.
The chart below shows the average temperature throughout the year:
Temperature: Whyalla vs Australia
The map below shows the annual temperature across Australia. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Whyalla vs World: Temperature Compared
Whyalla's average annual maximum temperature is 25°C (77°F). To put that in context, here's how it compares to a few well-known destinations:
Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.
On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.
Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.
Melbourne, Australia averages 20°C (68°F) annually — known for unpredictable weather, with four seasons sometimes happening in one day.
Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.
The readings come from a range of sources — land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.
Seasonal temperature shifts influence more than just how warm it feels — they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.
Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Whyalla this rarely lasts long on the ground.
For more on Whyalla's weather — including monthly rainfall, sunshine hours, and humidity — visit our Whyalla climate page.
