December · Australia
Best time to visit Perth in December Weather, crowds & prices
Weather in Perth in December
Average temperature 24°C, 6 mm of rain, about 31 days with 6+ hours of sunshine and 52% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
December score
9.3/10
Ranked #3 of 12 months
- Avg temp
- 24°C
- Rainfall
- 6 mm
- Humidity
- 52%
- Days with 6h+ sun
- 31
- Crowd Density
- Moderate Crowds
- Average Expenses
- $$$ · Peak Season Rates ($$$)
December in Perth scores 9.3/10 for sightseeing and cultural travel - one of the top 12-month picks (#3). Expect around 24°C, 6 mm of rain, and roughly 31 days with 6+ hours of sunshine this month.
Perth spreads along the Swan River, with Kings Park, Indian Ocean beaches, and Rottnest Island close by.
December ranks 3rd of 12 for Perth — one of the best windows
At 24°C (74°F) this is comfortable city weather in December, with sightseeing easiest before lunch and after the afternoon peak.
At just 6 mm for the month, rain will not shape your plans; you get about 31 days with 6+ hours of sunshine and 14.2 hours of daylight.
On our climate-comfort scale this is one of the strongest months of the year for Perth at 9.3/10 (3rd of 12), just behind November at 10/10.
Pack light clothing, a hat and real sun protection.
Budget for peak pricing, and crowds are moderate. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Perth in December?
- In December, Perth averages 24°C, 6 mm of rain, and about 31 days with 6+ hours of sunshine. Its climate-comfort score is 9.3/10.
- Is December a good time to visit Perth?
- December earns a 9.3/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Perth in December?
- Expect about 6 mm of rain in December. Average humidity is 52% and there are about 31 days with 6+ hours of sunshine.
Curated in Perth
Tickets & experiences
Things to do in Perth
Perth, Australia. Live activities and tours from GetYourGuide, matched to this destination.