Northam Temperature by Month

Northam, Western Australia, Australia has an average annual maximum temperature of 26°C (79°F), ranging from 18°C (64°F) in July to 34°C (93°F) in January. Below you'll find a full monthly breakdown and a comparison with cities worldwide.

Visitors to Northam will encounter a climate influenced by big temperature differences across the year. Nighttime temperatures range from 18°C (64°F) in January to 7°C (45°F) in July.

The chart below illustrates the average maximum day and minimum night temperatures in Northam 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.

The chart below shows the average temperature throughout the year:

Northam's average annual maximum temperature is 26°C (79°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.

Zermatt, Switzerland averages just 4°C (39°F) annually due to its altitude, with very cold winters and cool summers even at its warmest.

Chicago, USA averages 15°C (59°F) annually, known for extreme seasonal swings, from bitterly cold winters to warm summers.

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

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 Northam this rarely lasts long on the ground.

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