Climate Insights for Blackall

The climate in Blackall is warm and mild. The average annual temperature is 24°C and approximately 315mm of precipitation falls per year. January is the wettest month, receiving around 64mm of rainfall. Blackall 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: December, January, February. The coldest months are July, June, August, when temperatures can drop to 9°C.

Temperatures in Blackall vary considerably across the year, with a 27°C difference between the coldest and warmest months. December is the hottest month, with daytime highs reaching 36°C and an average of 30°C. July is the coolest month, with minimum temperatures around 9°C and an average of 15°C. On average, daily temperatures fluctuate by about 13°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 5°C shift in average temperatures.

Blackall is a quite dry location, receiving approximately 315mm of precipitation annually, which averages out to around 26mm per month. The wettest month is January, averaging 64mm of rainfall. March and February also tend to see above-average precipitation. The driest month is August, with just 10mm. That's 54mm 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.

Blackall is moderately windy, with an average annual wind speed of 23km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is November, averaging 26km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in June, with average winds dropping to 20km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 6km/h between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 21km/h in winter, 26km/h in spring, 24km/h in summer, 22km/h in autumn.

It is currently autumn in Blackall, which began on March 20, 2026. Blackall 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 December at around 36°C, while the coldest stretch bottoms out in July near 9°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Blackall is during April, May, June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 19°C with modest rainfall averaging 14mm per month. By contrast, December can be uncomfortably hot with temperatures reaching 36°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Blackall 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.