December

Weather in Australia in December: A Traveler’s Guide 🌞🌊

December marks the beginning of summer in Australia, bringing warm temperatures, long sunny days, and vibrant outdoor activities. Whether you’re planning a beach getaway, exploring the Outback, or visiting cities like Sydney or Melbourne, understanding the weather patterns will help you pack wisely and make the most of your trip.

Climate Overview

Australia’s vast size means regional variations in December weather:

  • Northern Australia (e.g., Darwin, Cairns): Tropical wet season ☔️
    • Hot & humid (avg. 30–33°C / 86–91°F)
    • Frequent thunderstorms and monsoon rains.
    • High humidity (70–80%).
  • Eastern Coast (e.g., Sydney, Brisbane): Warm & sunny 🌤️
    • Temperatures: 20–28°C (68–82°F).
    • Occasional rain showers, but mostly pleasant.
    • Ideal for beach trips (water temps: 22–25°C / 72–77°F).
  • Southern Regions (e.g., Melbourne, Adelaide): Mild to warm ☀️
    • Temperatures: 15–26°C (59–79°F).
    • Low humidity; cooler evenings.
  • Western Australia (e.g., Perth): Hot & dry 🔥
    • Temperatures: 18–32°C (64–90°F).
    • Minimal rainfall; perfect for coastal drives.
  • Outback (e.g., Uluru): Extreme heat 🏜️
    • Daytime highs: 35–40°C (95–104°F).
    • Nights cooler (~20°C / 68°F).

What to Pack 🧳

  • Lightweight clothing (linen, cotton).
  • Sunscreen (SPF 50+), hat, and sunglasses.
  • Rain gear if visiting the north.
  • Swimwear for coastal areas.

Travel Tips

✅ Book early: December is peak tourist season due to school holidays and Christmas.
✅ Stay hydrated: Heatwaves are common, especially inland.
✅ Wildfire awareness: Check local alerts in bushfire-prone areas.

For more details on Australia’s climate, see our Australia Climate Guide.

Best Activities in December

  • Snorkeling the Great Barrier Reef 🐠 (water clarity is excellent).
  • Sydney’s New Year’s Eve fireworks 🎆 (book vantage points early!).
  • Wine tasting in Margaret River 🍷 (Western Australia).

Pro Tip: If you prefer milder weather, consider visiting in April or October.

Regional Highlights

Region Key Feature
Queensland Daintree Rainforest & Whitsunday Islands
Victoria Great Ocean Road & Melbourne’s festivals
Tasmania Cooler temps (15–22°C); ideal for hiking

Note: Cyclones can occur in northern Australia—monitor the Bureau of Meteorology for updates.

December in Australia is a festive, lively time—just prepare for the heat and crowds! For seasonal comparisons, explore our Best Time to Visit Australia guide.

🌏 More destinations: Check out Thailand or Greece for alternative winter getaways!

Basic Information about December in Australia

Feature Details
Season Summer in Australia
Average Temperature Highs around 25-30°C (77-86°F), lows around 15-20°C (59-68°F)
Rainfall Variable, with some regions experiencing dry weather and others receiving summer storms
Daylight Hours Approximately 14 hours of daylight per day
Public Holidays Christmas Day, Boxing Day, New Year’s Eve
Tourist Activities Beach outings, outdoor festivals, surfing, camping
Sea Temperature Around 20-23°C (68-73°F), suitable for swimming
Wildlife Activity Active, with many animals visible during warmer weather
Clothing Tips Light, breathable fabrics, sun protection, swimwear

December in Australia – FAQ

Question Answer
What is the typical weather in Australia during December? December marks the beginning of summer in Australia, characterized by warm to hot temperatures across most regions, with higher humidity in northern areas.
Are there any specific weather hazards in December? Yes, December can bring thunderstorms, heavy rainfall, and the possibility of tropical cyclones in northern Australia.
What is the average temperature in major cities during December? Sydney averages around 20-26°C, Melbourne around 14-25°C, Brisbane around 21-30°C, and Darwin around 24-32°C.
Is December a good time to visit Australia? Yes, December is popular for beach holidays and outdoor activities, though visitors should be prepared for hot weather and possible storms.
What are the typical rainfall patterns in December? Rainfall varies by region, with northern Australia experiencing higher rainfall due to the wet season, while southern regions tend to be drier.
Are there any public holidays or events in December? Yes, Christmas Day and Boxing Day are national holidays, and many regions host summer festivals and outdoor events.
What should travelers pack for December in Australia? Light clothing, sun protection, swimwear, and rain gear are recommended, along with hats and sunglasses for sun safety.
How is the daylight duration in December? Days are long, with up to 14 hours of daylight in southern regions, providing ample time for outdoor activities.
Are outdoor activities safe during December? Generally yes, but precautions should be taken during hot weather, and awareness of weather forecasts is advised due to possible storms.