Climate Insights for Adelaide

The climate in Adelaide is temperate. The average annual temperature is 14°C and approximately 328mm of precipitation falls per year. December is the wettest month, receiving around 33mm of rainfall. Adelaide is in the Southern Hemisphere. The seasons are reversed — summer runs from December to February, while winter falls between June and August. The summer months are: November, December, March. The coldest months are June, July, August, when temperatures can drop to 3°C.

Adelaide sees moderate temperature variation throughout the year, ranging from 3°C to 20°C. November is the warmest month, though highs remain moderate at 20°C with a mean of 19°C. June is the coolest month, with minimum temperatures around 3°C and an average of 7°C. Daily temperature variation is modest, with an average difference of 3°C between highs and lows. The sharpest temperature change occurs between May and June, with a 7°C shift in average temperatures.

Adelaide is a quite dry location, receiving approximately 328mm of precipitation annually, which averages out to around 27mm per month. The wettest month is January, averaging 33mm of rainfall. February and March also tend to see above-average precipitation. The driest month is May, with just 0mm. That's 33mm less than January, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Adelaide is relatively calm, with an average annual wind speed of 9km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is August, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in June, with average winds dropping to 4km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 10km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans. Wind tends to pick up during the summer months. The seasonal averages are 8km/h in winter, 9km/h in spring, 11km/h in summer, 10km/h in autumn.

It is currently winter in Adelaide, which began on June 21, 2026. Adelaide is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in November at around 20°C, while the coldest stretch bottoms out in June near 3°C. Spring is next, beginning on September 23, 2026 — 16 days from now.

The best time to visit Adelaide is during March, April, October, November and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 17°C with modest rainfall averaging 33mm per month. By contrast, June can be quite cold with temperatures dropping to 3°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Adelaide based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.