Climate Overview
The climate in Mount Gambier Airport is temperate. The average annual temperature is 14°C and approximately 596mm of precipitation falls per year. July is the wettest month, receiving around 81mm of rainfall. Mount Gambier Airport 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, February, December. The coldest months are July, June, August, when temperatures can drop to 7°C.
Temperature
Mount Gambier Airport sees moderate temperature variation throughout the year, ranging from 7°C to 25°C. The warmest month is January, when average highs reach 25°C and the mean temperature sits around 19°C. July is the coolest month, with minimum temperatures around 7°C and an average of 10°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs. The sharpest temperature change occurs between March and April, with a 2°C shift in average temperatures.
Precipitation
Mount Gambier Airport is a relatively dry area, receiving approximately 596mm of precipitation annually, which averages out to around 50mm per month. The wettest month is July, averaging 81mm of rainfall. August and September also tend to see above-average precipitation. The driest month is February, with just 18mm. That's 62mm less than July, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall.
Wind
Mount Gambier Airport is moderately windy, with an average annual wind speed of 21km/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 23km/h, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in April, with average winds dropping to 19km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 4km/h between the calmest and windiest months.
Seasons
88 days until Winter
It is currently autumn in Mount Gambier Airport, which began on March 20, 2026. Mount Gambier Airport 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 25°C, while the coldest stretch bottoms out in July near 7°C. Winter is next, beginning on June 21, 2026 — 88 days from now.
Spring
Temperatures range from 8 to 20°C. Precipitation is moderate at around 183mm for the season, averaging 61mm per month. Winds are moderate at around 22km/h. Light layers work well as temperatures warm through the season — a great time to be outdoors.
Summer
Temperatures range from 12 to 25°C. Rainfall is relatively light, with around 79mm over the season and a monthly average of 26mm. Winds are moderate at around 21km/h. Comfortable clothing with a light layer for cooler evenings is all you need.
Autumn
Temperatures range from 9 to 22°C. Rainfall is relatively light, with around 119mm over the season and a monthly average of 40mm. Winds are moderate at around 20km/h. Layered clothing works best as temperatures gradually cool — enjoy the crisp air and changing scenery.
Winter
Temperatures range from 7 to 14°C. Precipitation is moderate at around 214mm for the season, averaging 71mm per month. Winds are moderate at around 21km/h. A light jacket or sweater is usually sufficient, though cooler evenings may call for an extra layer.
Best Time to Visit
The best time to visit Mount Gambier Airport is during January, February, March and December, when the weather is most comfortable for travellers. During these months, average temperatures hover around 18°C with modest rainfall averaging 26mm per month. By contrast, July can be quite cold with temperatures dropping to 7°C. With minimal rainfall expected, you can pack light and plan outdoor activities with confidence.
Monthly Climate Data
The table below shows monthly climate averages for Mount Gambier Airport 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.
