Weather in Perth in December 2024
Average weather
Average temperature in Perth in December
Going from a maximum of +37°C during the day to a minimum of +15°C during the night, the temperature in December averages around +31°C.
The average maximum temperature goes down 18% by the end of the month, compared with the beginning of the month, from +35°C to +31°C.
Is Perth warm or cold in December?
Perth is typically warm in December.
Maximum temperatures go up compared to the previous month from +25°C to +28°C. The minimum temperature also goes up from +15°C to +17°C.
It’s generally warm, but pack a long-sleeve shirt for evenings.
Take a look at how December is compared to other months in Perth:
Water temperature in Perth in December
Water in Perth in December is Fresh. It varies from +19°C to +23°C, with an average of +21°C. The air temperature averaging +28°C is higher than the water temperature.
In December, water temperatures are average relative to the rest of the year:
Can you swim in Perth in December?
Climate in Perth in December
| November | December | January | ||||
|---|---|---|---|---|---|---|
| Avg. temperature | ||||||
| +25°C | +28°C | +30°C | ||||
| Min. temperature | ||||||
| +6°C | +6°C | +9°C | ||||
| Max. temperature | ||||||
| +40°C | +42°C | +43°C | ||||
| Rainfall | ||||||
| 21 mm | 10 mm | 15 mm | ||||
| Wind | ||||||
| 5 m/s | 5 m/s | 5 m/s | ||||
| Avg. water temperature | ||||||
| +19°C | +21°C | +22°C | ||||
| Humidity | ||||||
| 60% | 55% | 53% | ||||
| Air pressure | ||||||
| 1013 HPa | 1012 HPa | 1010 HPa | ||||
| Sunny days | ||||||
| 14 | 20 | 21 | ||||
| Cloudy days | ||||||
| 8 | 6 | 6 | ||||
| Rainy days | ||||||
| 7 | 4 | 3 | ||||
| Snowy days | ||||||
| 0 | 0 | 0 | ||||
December weather is still as great as in November. It’s getting warmer as December arrives. The average maximum temperature goes up from +25°C to +28°C during the day. As December arrives, the amount of rainfall goes down. On average, the rainfall volume decreases from 21 mm to 10 mm. It feels drier, as humidity decreases from 60% to 55%. The average wind speed doesn’t change much during December, staying around 5 m/s. The good news is there are likely to be more sunny days in December, from 14 to 20.
January brings much the same weather, it remains great.
Wind
The average wind speed is 6 m/s getting up to 9 m/s which is a medium breeze. You can feel it, especially getting out of the water.
The average wind speed in Perth is gradually increasing during December, going from 5 m/s to 5 m/s over the course of the month.
How was the weather last December in Perth?
Climate Change over Years
The climate in Perth in December has not changed much over the last 43 years.
The average temperature was the lowest in 1990 (+22°C) and the highest in 2023 (+25°C). The driest year was 2010 with only 285 mm of rainfall, and the wettest year was 2012 with 1017 mm.
FAQ
Is December a good time to visit Perth?
Can you sunbathe in Perth in December?
Can you swim in Perth in December?
Is Perth rainy in December?
Is it sunny in Perth in December?
Other cities in Australia
Monthly weather in Perth
Source of the data
For this page, we’ve looked at the typical weather in Perth, based on historical hourly weather data from January 1, 1979, to December 31, 2023.
For past dates, we show actual recorded data at the location at that time. Forecasts are based on recorded weather during that day of the year, averaged over the total years for which we have records (unless stated otherwise). The daily temperature is the highest recorded temperature in the shadow during that day.