Climate Insights for Goulburn

The climate in Goulburn is hot. The average annual temperature is 28°C and approximately 139mm of precipitation falls per year. December is the wettest month, receiving around 33mm of rainfall. Goulburn 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: June, July, May. The coldest months are August, July, June, when temperatures can drop to 21°C.

Goulburn sees moderate temperature variation throughout the year, ranging from 21°C to 37°C. June is the hottest month, with daytime highs reaching 37°C and an average of 30°C. August is the coolest month, with minimum temperatures around 21°C and an average of 25°C. Daily temperature variation is modest, with an average difference of 4°C between highs and lows. The sharpest temperature change occurs between July and August, with a 4°C shift in average temperatures.

Goulburn is a quite dry location, receiving approximately 139mm of precipitation annually, which averages out to around 12mm per month. The wettest month is September, averaging 33mm of rainfall. December and November also tend to see above-average precipitation. The driest month is May, with just 0mm. That's 33mm less than September, 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.

Goulburn is relatively calm, with an average annual wind speed of 7km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is December, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in May, with average winds dropping to 5km/h, making it an ideal period for wind-sensitive activities. There is moderate seasonal variation in wind speed, with a 4km/h gap between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 6km/h in winter, 7km/h in spring, 8km/h in summer, 6km/h in autumn.

It is currently winter in Goulburn, which began on June 21, 2026. Goulburn 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 June at around 37°C, while the coldest stretch bottoms out in August near 21°C. Spring is next, beginning on September 23, 2026 — 18 days from now.

The table below shows monthly climate averages for Goulburn 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.