Invercargill Temperature by Month

Invercargill in Southland, New Zealand sees moderate seasonal temperature shifts, with daytime highs between 11°C (52°F) in July and 19°C (66°F) in January, averaging 15°C (59°F) annually. Explore the full monthly breakdown below.

The moderate changes in the climate in Invercargill ensure gradual weather shifts through each season. At night, temperatures drop to between 11°C (52°F) and 3°C (37°F) depending on the time of year.

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

Daily lows are most common between 4 AM and 6 AM. By 3 PM temperatures reach their daily high, driven by peak solar heating. January, the warmest month of the year, receives 187 hours of sunshine.

The chart below shows the average temperature throughout the year:

Invercargill's average annual maximum temperature is 15°C (59°F). To put that in context, here's how it compares to a few well-known destinations:

Seville, Spain averages 23°C (73°F) a year, one of the warmer cities in Western Europe, with long hot summers.

Glasgow, Scotland averages 13°C (55°F) a year, mild but often grey, with cold winters and rarely hot summers.

Shanghai, China averages 21°C (70°F) a year, with warm summers, mild winters, and a noticeable spring and autumn.

Melbourne, Australia averages 20°C (68°F) annually, known for unpredictable weather, with four seasons sometimes happening in one day.

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 the cooler months, when temperatures drop below 10°C, high humidity makes the cold feel more cutting than it would in dry conditions.

In Invercargill, July is the coolest month, with average highs of 11°C (52°F) and humidity around 88%, considered very high. 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 Invercargill this rarely lasts long on the ground.

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