Eltham Temperature by Month

The average annual maximum temperature in Eltham, Victoria, Australia is 20°C (68°F), with daytime highs ranging from 14°C (57°F) in July to 27°C (81°F) in January. This page covers monthly averages, day-night differences, and how Eltham compares to cities worldwide.

The climate in Eltham is dynamic, ranging widely from moderate in winter to comfortable in summer. Nights are significantly colder, with lows dropping from 13°C (55°F) in January to 6°C (43°F) in July.

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

From around 4 AM to 6 AM temperatures are at their lowest; by 3 PM they've climbed to their daily peak. January, the warmest month, averages 276 hours of sunshine.

The chart below shows the average temperature throughout the year:

Eltham's average annual maximum temperature is 20°C (68°F). To put that in context, here's how it compares to a few well-known destinations:

Rome, Italy averages 20°C (68°F) annually, with reliably warm summers and comfortable winters.

Queenstown, New Zealand averages 10°C (50°F) annually, remember seasons are flipped, so its coldest months fall in June and July.

Boston, USA averages 16°C (61°F) annually, with four distinct seasons and cold winters that rival northern Europe.

Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate, hot dry summers and mild wet winters.

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 Eltham, July is the coolest month, with average highs of 14°C (57°F) and humidity around 63%, considered high. In January, the warmest month, temperatures average 27°C (81°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.

Whether a city sits on the coast or deep inland makes a significant difference to its climate. Coastal areas tend to have more stable temperatures year-round, large bodies of water absorb heat slowly in summer and release it gradually in winter, keeping extremes in check. Cities far from the sea don't benefit from that buffer, which is why continental climates tend to have hotter summers and colder winters than their coastal counterparts at the same latitude.

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