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When to go · Sydney

Sydney in December

Mixed month. Peak prices, New Year's Eve closures around the harbour.

Key facts

Verdict
Mixed
Temperature
26°C (79°F) / 18°C (64°F)
average high / low
Rain days
11
Crowds
High
Australia overall
Prices
High
Australia overall

Verdict

MixedVoykit month rating for Sydney

Peak prices, New Year's Eve closures around the harbour.

All twelve months in one grid — weather, crowds and prices, with gaps left as unknown.

Is another month better than December?

December is rated mixed. These months rate higher:

Weather in December

Long-term averages
  • SydneyHighs around 26 °C (79 °F), lows around 18 °C (64 °F), rain on about 11 days
  • South-east coast, Australia · Sydney, Melbourne, Canberra, Adelaidebest weather

    Summer is beach season and school-holiday peak; Melbourne swings between cool and 40 °C (104 °F) in a day. Winter is mild and sunny in Sydney, grey and cool in Melbourne.

Summer season

Warm, humid days, long light and beach weather.

Watch: High UV, storms, school holidays and peak prices.

Festivals and holidays

Dates as our data lists them. Moving holidays (lunar and Islamic calendars, Easter) shift every year: check the date for your year before you build a trip on it.

  • Christmas and New Year's Eve

    25 Dec, 31 Dec · Harbour

    Fireworks and foreshore closures; transport crowded.

  • New Year's Eve

    Dec 31

    Harbour foreshores close to walk-ups; transport is crowded and hotels sell out.

  • New Year big impact

    31 Dec – 1 Jan · Australia

    Sydney Harbour fireworks: vantage points ticketed or claimed from morning; beds book out months ahead.

  • Summer school holidays big impact

    Mid-Dec to late Jan · Australia

    Coast, campsites, ferries and Tasmania fill; prices peak.

Crowds and prices

Crowds · Australia overall
High
Prices · Australia overall
High

Australia overall: Summer holidays begin; bushfire risk and heatwaves in the south, wet season in the north; book everything early.

High-price month: see what to book ahead.

Compare two months

Weather, crowds and prices for any two months in Sydney, side by side.

  • Verdict

    Dec: Mixed

    Mar: Great (better)

  • Daytime high

    Dec: 26 °C (79 °F)

    Mar: 25 °C (77 °F)

  • Night low

    Dec: 18 °C (64 °F)

    Mar: 18 °C (64 °F)

  • Rain days

    Dec: 11 (better)

    Mar: 13

  • Crowds

    Dec: High

    Mar: Medium

  • Prices

    Dec: High

    Mar: Medium

  • Festivals listed

    Dec: 4

    Mar: 2

December: Peak prices, New Year's Eve closures around the harbour.

March: Warm; sea still warm; fewer crowds.

Sydney: figures are long-term averages from this guide, not a forecast.

What to pack

  • A rain jacket or umbrella and shoes that dry fast

Build the full packing list for your trip →

Across Australia in December →