Climate Insights for Cunnamulla

The climate in Cunnamulla is warm and mild. The average annual temperature is 22°C and approximately 333mm of precipitation falls per year. January is the wettest month, receiving around 45mm of rainfall. Cunnamulla 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: January, December, February. The coldest months are July, June, August, when temperatures can drop to 7°C.

Temperatures in Cunnamulla vary considerably across the year, with a 30°C difference between the coldest and warmest months. January is the hottest month, with daytime highs reaching 37°C and an average of 31°C. July is the coolest month, with minimum temperatures around 7°C and an average of 12°C. On average, daily temperatures fluctuate by about 12°C between overnight lows and afternoon highs. The sharpest temperature change occurs between April and May, with a 6°C shift in average temperatures.

Cunnamulla is a quite dry location, receiving approximately 333mm of precipitation annually, which averages out to around 28mm per month. The wettest month is January, averaging 45mm of rainfall. November and March also tend to see above-average precipitation. The driest month is August, with just 13mm. That's 32mm less than January, the wettest month. Precipitation varies noticeably between seasons, with the first half (January to June) of the year generally seeing more rainfall.

Cunnamulla is mildly breezy, with an average annual wind speed of 20km/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 22km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in June, with average winds dropping to 17km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 5km/h between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 18km/h in winter, 22km/h in spring, 22km/h in summer, 19km/h in autumn.

It is currently autumn in Cunnamulla, which began on March 20, 2026. Cunnamulla 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 January at around 37°C, while the coldest stretch bottoms out in July near 7°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Cunnamulla is during April, May, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 20°C with modest rainfall averaging 24mm per month. By contrast, January can be uncomfortably hot with highs reaching 37°C, while July is the coldest period with lows dropping to 7°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Cunnamulla 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.