The month in detail
What to expect in December
Summer in Perth brings pleasant temperatures (28°C) and long sunny days (11.5h of sunshine). Rain is virtually absent (6% of days) — ideal for planning without a backup.
December is the best month of the year in Perth. Compared to November: +4°C daytime, 7 pts fewer rainy days, +0.9h of sun per day.
This month's conditions
What it's like in December
UV index
9 · very high
protection essential
Feels like
comfortable
12°
Sea
24°C
pleasant for swimming
Daylight
14.1h of daylight
Air quality
good
AQI 24
Compare
Is December the right month?
December is actually the best month of the year in Perth. Good timing.
Book
Plan your trip
Hotels at their lowest outside peak season, highest on comfortable months. Shoulder seasons offer a good price/climate compromise.
Stay
Hotels & rentals · Perth
Expedia →
Activities
Tours, tickets, experiences
See ↓
Flights
Multi-airline comparator
Kiwi →
🎟️ Activities & tours · Perth
GetYourGuide selection · free cancellation
Practical info
What you need to know before you go
Three angles: the country (language, currency, safety, budget), the year-round climate, and the specifics of a beach holiday.
Country · Australia
🗣️LanguageEnglish
💶CurrencyAustralian Dollar ($)
🚗DrivingLeft-hand
🛡️Safety ⓘVery safe · 1/5
💰Cost of living ⓘExpensive · 4/5
🌡️ Climate
🌍Climate typeTemperate oceanic
📈Climate trend ⓘ+1.49°C/decade
🔥Hottest monthJanuary · 30°C
❄️Coolest monthJuly · 17°C
🌧️Rainiest month ⓘJuly · 48%
🏖️ Beach holiday
📅Peak seasonJuin → Sept
🏖️Swell (Sept–Mar) ⓘModérée
Explore
Other destinations in December
If December doesn't convince you for this destination, compare with others.
Location
Where is Perth ?
Global position + regional geographic context.
🌍 World
🔍 Geographic context
AustraliaTemperate oceanic climate with a 9.7 → 4.5 gap between best and worst month. 10 years of ERA5 data to choose by project.
31.95°S · 115.86°E
Questions
Frequently asked questions
What is the best time to visit Perth?
December is the best month with 28.0°C highs, 18.0°C lows, 11.5h of sunshine and 6.0% rainy days. The months of December & January offer comparable conditions.
How many hours of sunshine does Perth get in December?
Perth averages 11.5 sunshine hours per day in December. It is the sunniest month with a climate score of 9.6/10.
What is the rainiest month in Perth?
July is the most unfavourable month with July has the lowest climate score of the year and the lowest climate score of the year.
What are the temperatures at night in Perth in December?
In December, overnight lows reach 18.0°C, while afternoon highs average 28.0°C.
Is Perth good in winter?
In winter (December-February), Perth scores 9.4/10 on average — Decent period conditions for cultural visits.. The best month overall remains December with a score of 9.6/10.
When should you avoid Perth?
July is the most difficult month to visit Perth, with July has the lowest climate score of the year. Climate conditions are at their lowest of the year during this period.
Can you swim in Perth in December?
In December, the sea averages 24°C in Perth: pleasant for swimming. Swimming is pleasant without a wetsuit.
Do you need sun protection in Perth in December?
The average UV index reaches 9 in December in Perth (very high), with about 14.1h of daylight. Protection essential.