Mount Gambier Temperature by Month

Mount Gambier in South Australia, Australia sees moderate seasonal temperature shifts, with daytime highs between 14°C (57°F) in July and 24°C (75°F) in February, averaging 19°C (66°F) annually. Explore the full monthly breakdown below.

In Mount Gambier, seasonal changes bring about a moderate variation in temperatures. Nighttime lows range from 13°C (55°F) in February to 8°C (46°F) in July.

The chart below illustrates the average maximum day and minimum night temperatures in Mount Gambier by month:

The coldest point of the day usually falls between 4 AM and 6 AM, with temperatures peaking around 3 PM. February, the city's warmest month, gets 245 hours of sunshine.

The chart below shows the average temperature throughout the year:

Mount Gambier's average annual maximum temperature is 19°C (66°F). To put that in context, here's how it compares to a few well-known destinations:

Barcelona, Spain has an annual average of around 21°C (70°F), with warm summers and mild, fairly short winters.

On the cooler end, Oslo, Norway averages just 10°C (50°F) annually, with pleasant summers but long, cold winters.

New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.

Adelaide, Australia averages 21°C (70°F) a year, with warm summers, mild winters, and relatively low rainfall year-round.

Temperature alone doesn't tell the whole story, humidity plays a big role in how warm or cold it actually feels. High humidity in summer makes the heat feel more intense, particularly once temperatures climb above 25°C. In winter, the same humidity can make cold air feel sharper than the thermometer suggests.

In Mount Gambier, July is the coolest month, with average highs of 14°C (57°F) and humidity around 72%, considered high. In February, the warmest month, temperatures average 24°C (75°F) with 44% humidity, conditions that feel moderate. For a full picture, see our humidity page.

Climate temperature data is typically calculated as a 30-year average. This smooths out year-to-year variability and gives a more reliable picture of what a place is actually like, rather than what happened in any single unusual year.

The readings come from a range of sources, land-based weather stations, ocean buoys, ships, and satellites. That data is collected by weather services around the world, then pooled, quality-checked, and averaged to produce the climate records you see here.

Seasonal temperature shifts influence more than just how warm it feels, they also drive changes in rainfall, cloud cover, and wind patterns throughout the year.

Warmer air holds more moisture, which tends to mean heavier or more frequent rain during the warmer months. When temperatures drop in winter, any precipitation that does fall is more likely to come as snow or sleet, though in Mount Gambier this rarely lasts long on the ground.

For more on Mount Gambier's weather, including monthly rainfall, sunshine hours, and humidity, visit our Mount Gambier climate page.