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Check accurate weather in December in Perth. Expect Perth December temperature around 30°C (86°F). Read clothing tips & recommended activities.
Get the monthly weather forecast for Perth, Western Australia, Australia, including daily high/low, historical averages, to help you plan ahead.
December Weather in Perth Western Australia, Australia. Daily high temperatures increase by 5°F, from 78°F to 83°F, rarely falling below 69°F or exceeding 96°F. Daily low temperatures increase by 4°F, from 59°F to 64°F, rarely falling below 53°F or exceeding 71°F.
- Light Rainfall Mid-Month
- Well Above Average Mean Temperatures with An Extreme Heatwave in Late December
- Perth Metro
Monthly rainfall totals were less than 10 mm for most sites, which were 10-50% of the December average, although it is typical in summerMost sites recorded 2 to 3 days of light rainfall between the 17th and 19th from a weak cold front.Mean maximum temperatures were 1–3 °C above average across Greater Perth.Perth Metro recorded a mean maximum temperature of 31.7 °C, which was 2.3 °C above average, the equal second-warmest December in Perth official records, equalling with 2020 and 1931 and behind the...Perth Airport recorded a mean maximum temperature of 32.5 °C, which was 3.3 °C above average, its second-warmest December on record, behind the record of 33.9 °C in 2019.A severe to extreme heatwave hit Perth and surrounding areas in late December between the 24th and 29th, with maximum temperatures persisting over 40 °C and overnight temperatures remaining above 2...Total rainfall for Perth Metrowas 3.6 mm, which is 35% of the long-term average of 10.2 mmThe mean daily maximum temperature for Perth Metrowas 31.7 °C, which is 2.3 °C above the long-term average of 29.4 °CThe warmest day was 43.5 °C on the 26th, and the coolest day was on the 17th when the temperature reached 22.7 °CThe mean daily minimum temperature for Perth Metrowas 17.8 °C, which is 1.4 °C above the long-term average of 16.4 °C- Molly Mclaughlin
- Summer in Perth. Summer in Perth means long days and idyllic beach weather. Unlike Brisbane, Sydney, or Melbourne, this west coast city enjoys gorgeous sunsets over the water, and the colors are especially vibrant in summer.
- Fall in Perth. March, April, and May are generally warm and sunny in Perth, with low crowd levels throughout most of the season. (A small increase in visitors can be expected over the Easter break.)
- Winter in Perth. From June to August, Perth experiences its coldest and wettest season, but that doesn't mean that the sun disappears altogether. The rain tends to arrive in occasional downpours and thunderstorms, leaving plenty of time to get out and see the city.
- Spring in Perth. The days warm up quickly in spring, bringing wildflower blooms and humpback whales to Perth. The nights can remain a little chilly, but the sunshine and lack of rain more than makes up for that.
December 2020 was very warm across Greater Perth, and it was the second-warmest December on record at the Perth Metro site. Mean maximum temperatures were well above average, with a mild start to the month and a hot spell to Christmas Day. Mean minimum temperatures were also above average.
An average high-temperature, in December, in Perth, is 29.1°C (84.4°F) and the average low-temperature is 16.4°C (61.5°F). In December, the average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, is appraised at 29°C (84.2°F).
