Climate Insights for Goonellabah

The climate in Goonellabah is hot. The average annual temperature is 29°C and approximately 114mm of precipitation falls per year. February is the wettest month, receiving around 33mm of rainfall. Goonellabah 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: October, September, December. The coldest months are July, November, June, when temperatures can drop to 21°C.

Temperatures in Goonellabah vary considerably across the year, with a 23°C difference between the coldest and warmest months. October is the hottest month, with daytime highs reaching 44°C and an average of 36°C. July is the coolest month, with minimum temperatures around 21°C and an average of 21°C. Daily temperature variation is modest, with an average difference of 7°C between highs and lows. The sharpest temperature change occurs between July and August, with a 12°C shift in average temperatures.

Goonellabah is a quite dry location, receiving approximately 114mm of precipitation annually, which averages out to around 9mm 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 July, 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.

Goonellabah is relatively calm, with an average annual wind speed of 5km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is July, averaging 9km/h, though still comfortable for most outdoor activities. The calmest conditions occur in November, with average winds dropping to 3km/h, making it an ideal period for wind-sensitive activities. Wind speeds vary significantly across the year, with a 6km/h difference between the calmest and windiest months. This level of variation is worth factoring into travel plans.

It is currently winter in Goonellabah, which began on June 21, 2026. Goonellabah 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 October at around 44°C, while the coldest stretch bottoms out in July near 21°C. Spring is next, beginning on September 23, 2026 — 18 days from now.

The best time to visit Goonellabah is during May, June and July, when the weather is most comfortable for travellers. During these months, average temperatures hover around 23°C with modest rainfall averaging 2mm per month. By contrast, October can be uncomfortably hot with temperatures reaching 44°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.

The table below shows monthly climate averages for Goonellabah 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.