December is an ideal time to visit Perth if you're seeking a destination with brilliant weather. Anticipate average maximum temperatures of +28°C and about 20 sunny days, ensuring you'll have ample opportunities to soak up the sunshine. It's worth noting, though, that there may be some rainfall, with approximately 10 mm of precipitation over an average of 4 rainy days. So, prepare your sunglasses, a beach towel, and great walking shoes, as it's most likely going to be amazing weather. Search flightsin one click on Avionero.
Average weather
☀️
+28°C
Avg. max. temperature
+6°C
Min.
+42°C
Max.
10 mm
Total precipitation
55%
Avg. humidity
5 m/s
Avg. wind
20 ☀️
Sunny Days
6 ⛅️
Cloudy
4 🌦
Rainy
Our opinion: Perth has great weather in December.
Average temperature in Perth in December
Here are the expected maximum, average and minimum temperatures in Perth for December based on the historical data.
Last Year
Historical Data
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:
The warmest water temperatures in Perth are reached in March, when the average sea temperature rises to +23°C. The coldest water temperatures are in September, with an average of +19°C.
Can you swim in Perth in December?
Water temperature (+21°C) in Perth in December might be suited for short swims and acclimatized swimmers might find it refreshing.
🦭
Cold
Below +16°C
🏄♂️
Fresh
16°C - 21°C
🏊
Comfortable
21°C - 25°C
👙
Warm
25°C - 28°C
🔥
Very warm
+28°C and up
Think of bringing a full-body or shorty wetsuit (3mm-5mm thickness) to provide insulation and maintain body heat.
Climate in Perth in December
Perth weather looks like this, on average, in December and the surrounding months.
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 speed in Perth in December based on historical data.
Last Year
Historical Data
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?
This is the weather in Perth in December 2023:
1 December
☀️
+35°C
2 December
☁️
+27°C
3 December
☁️
+26°C
4 December
☀️
+27°C
5 December
☀️
+30°C
6 December
☀️
+32°C
7 December
☀️
+27°C
8 December
☀️
+26°C
9 December
☀️
+28°C
10 December
☀️
+31°C
11 December
☀️
+33°C
12 December
☀️
+35°C
13 December
☀️
+30°C
14 December
☀️
+29°C
15 December
☀️
+33°C
16 December
☀️
+37°C
17 December
☀️
+32°C
18 December
☀️
+31°C
19 December
☀️
+32°C
20 December
☀️
+36°C
21 December
☀️
+37°C
22 December
☀️
+31°C
23 December
☀️
+35°C
24 December
☀️
+35°C
25 December
☀️
+34°C
26 December
☀️
+25°C
27 December
☁️
+26°C
28 December
☀️
+29°C
29 December
☀️
+32°C
30 December
☀️
+36°C
31 December
☀️
+31°C
In December 2023 Perth had 28 sunny days, 3 cloudy days, and 0 rainy days. The average maximum temperature was +31°C, with an absolute maximum of +37°C and a minimum of +25°C. The average humidity was 56%, with a maximum of 93% and a minimum of 22%. The average wind speed was 6 m/s, with a maximum of 15 m/s and a minimum of 0 m/s.
Are you planning a trip in December?
Climate Change over Years
This is how Perth climate have been changing during last 43 years period.
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
Frequently asked questions about the weather in Perth in December:
Is December a good time to visit Perth?
Yes, December is a great time to go to Perth, the weather couldn’t be better. Be ready to get outside, explore and enjoy. Check what other months that are a good time to visit Perth.
Can you sunbathe in Perth in December?
December is warm in Perth. You may enjoy some beach or pool time in the day, but pack something a tad warmer for the evening.
Can you swim in Perth in December?
In general, you can swim in Perth in December, if you want to, at an average water temperature of +21°C. But it will feel quite cool, and some precautions are necessary to ensure your comfort and safety.
Is Perth rainy in December?
Perth is usually dry in December. Plan your packing around outdoor activities and exploring.
Is it sunny in Perth in December?
Yes, Perth is sunny in December. Prepare for lots of rays. Don’t forget to pack your sunglasses and sunscreen, and maybe pick up a wide-brimmed hat when you arrive.
Other cities in Australia
Check out the weather for other cities in Australia.
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.