Foster Temperature by Month
The average annual maximum temperature in Foster, Victoria, Australia is 18°C (64°F), with daytime highs ranging from 13°C (55°F) in July to 23°C (73°F) in February. This page covers monthly averages, day-night differences, and how Foster compares to cities worldwide.
Foster Monthly Temperatures
The moderate changes in the climate in Foster ensure gradual weather shifts through each season. At night, temperatures drop to between 15°C (59°F) and 8°C (46°F) depending on the time of year.
The chart below illustrates the average maximum day and minimum night temperatures in Foster by month:
The minimum temperature is often recorded between 4 AM and 6 AM, while the highest temperature is usually reached at 3 PM, when the sun's heating effect is strongest.
The chart below shows the average temperature throughout the year:
Temperature: Foster vs Australia
The map below shows the annual temperature across Australia. You can also select individual months if you want to compare a specific time of year.
very warm
warm
pleasant
moderate
cold
very cold
Foster vs World: Temperature Compared
Foster's average annual maximum temperature is 18°C (64°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.
Toronto, Canada averages 13°C (55°F) annually, with cold snowy winters balanced by genuinely warm summers.
New York City, USA averages 17°C (63°F) a year, with hot humid summers and cold winters that bring regular snowfall.
Perth, Australia averages 25°C (77°F) annually, with a classic Mediterranean climate — hot dry summers and mild wet winters.
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.
For cities and regions with significant elevation, altitude is one of the biggest factors shaping local temperatures. As a rule of thumb, temperatures fall by around 6°C for every 1,000 metres gained — so a city at 2,000 metres will typically be around 12°C cooler than a city at sea level in the same region. Higher ground also tends to see more dramatic day-to-night temperature swings, since thinner air loses heat faster after sunset.
For more on Foster's weather — including monthly rainfall, sunshine hours, and humidity — visit our Foster climate page.
