South Australia Weather

The climate in South Australia varies significantly across different regions, from coastal areas to inland plains and mountains. Below you'll find weather data for 22 key locations across the state. The dataset includes daily temperature ranges, rainfall frequency, solar radiation, humidity levels, and comfort ratings to help you understand what to expect year-round.

Climate varies dramatically across South Australia. Here are some key extremes at a glance, identified from average annual temperature and rainfall data across 22 cities and towns in the dataset.

All data in this dataset comes from the Open-Meteo Historical Weather API, sourced from official weather station networks and reanalysis models. Data reflects averages across the full 2024 calendar year. Each city includes monthly averages for maximum and minimum temperatures, total rainfall, the number of rainy days, solar exposure measured in megajoules per square metre, and relative humidity at the time of maximum daily temperature. Our comfort score synthesises these factors to rate each month from 1 (harsh conditions) to 10 (ideal), helping you find the best times to visit.

The comfort range in South Australia tells the story: Oodnadatta scores 5.4 while Ceduna leads with 7.9. The statewide average is 6.5. That's close to the national average of 6.2, though individual cities vary widely.

That 2.5-point gap between the most and least comfortable cities shows how much local geography matters. Coastal cities average a comfort score of 6.9 compared to 6.5 inland, reflecting the moderating influence of the ocean on temperature extremes and humidity. Understanding these differences helps whether you're planning a move, a holiday, or just deciding when to visit.

Each city page includes month-by-month climate data, comfort scores, packing recommendations, and detailed seasonal analysis. You'll also find comparisons to the state's capital city and links to explore weather patterns month by month.