Perth weather in December (Western Australia, Australia)

This month is known as a warm month. The average maximum daytime temperature in Perth in December lies at 31.3°C (88.34°F). The average minimum temperature goes down to around 14.2°C (57.56°F) (often the minimum temperature is noted at night).

December is a dry month with an average of 10mm (0.4 inches) of rain. This makes it the driest month of the year. There are generally around 3 rainy days. It is also invariably a very sunny time of year with 354 hours of sun during the entire month.


Perth, monthly averages in December

Show in Fahrenheit
Min Temperature 14 °C  
Max Temperature 31 °C  
Water Temperature 19 °C *  
Chance of Rain 10%  
Precipitation 9mm  
Rainy days 3 days  
Humidity 41% *  
Sunshine 354 hrs *  

Where to stay in Perth

Where to go in Australia in December

Find out more about the weather in Australia in December and which places have the best weather conditions in this month.

Map not visible? Whoops sorry! Please refresh the page.
Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20-29ºC / 68-84ºF and not too much precipitation (less than 90mm / 3.5inches a month).

So what to wear in December? Visitors traveling to Perth might want to wear airy clothing, t-shirts and other summer cloths. Shorts for men made of cotton or linen are good options for staying cool on a hot day. With a water temperature of around 19.0°C (66.2°F), this is a great month to swim so bring your swimwear.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do in December.

Outdoor sports

Interested in more climate information?

Weather and Climate provides you with all the information you need about the climate in Perth.

Our site offers climate and forecast data for every country in the world. Are you going to Australia? On this website you can find historical weather averages for many cities in Australia. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.