Sydney weather live forecast

Today's maximum temperature in Sydney is expected to be 40°C. Select a day from the live weather forecast for Sydney, New South Wales, Australia for more weather parameters.

5-day weather forecast updated at 04:01 on Friday 19th December 2025 GMT

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The 5-day weather forecast for New South Wales (Sydney) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Sydney weather forecast by day

Below are the detailed weather forecasts for Sydney for the next 5 days.

Sydney weather for Friday 19th December 2025

Expect scattered clouds in Sydney, New South Wales with a maximum temperature of 40°C, very high levels of heat & humidity, maximum UV of 11+ (Extreme) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 12 kph from the north-east.

  • 40°C maximum temperature40
    °C maximum temperature
  • 22°C minimum temperature22
    °C minimum temperature
  • Scattered clouds
    scattered clouds
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 11+ (Extreme)11
    UV index (Extreme)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Very high heat & humidityVH
    very high heat & humidity
  • Light breeze of 12 kph from the North-East12
    kph wind from NE

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Sydney weather for Saturday 20th December 2025

Expect broken clouds in Sydney, New South Wales with a maximum temperature of 29°C, low levels of heat & humidity, maximum UV of 10 (Very High) and 5 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 16 kph from the north-east.

  • 29°C maximum temperature29
    °C maximum temperature
  • 24°C minimum temperature24
    °C minimum temperature
  • Broken clouds
    broken clouds
  • 5 hours of bright sunshine5
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 0 mm of rainfall expected0
    mm of rainfall expected
  • Low heat & humidityL
    low heat & humidity
  • Gentle breeze of 16 kph from the North-East16
    kph wind from NE

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Sydney weather for Sunday 21st December 2025

Expect isolated thunderstorms in Sydney, New South Wales with a maximum temperature of 33°C, high levels of heat & humidity, maximum UV of 10 (Very High) and 9 hours of bright sunshine. There are 0-2 mm of rainfall expected with 53% chance of some rain and a gentle breeze of 17 kph from the north-east.

  • 33°C maximum temperature33
    °C maximum temperature
  • 23°C minimum temperature23
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 9 hours of bright sunshine9
    hours of sunshine
  • UV (maximum) index 10 (Very High)10
    UV index (Very High)
  • 53% chance of some rain53
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • High heat & humidityH
    high heat & humidity
  • Gentle breeze of 17 kph from the North-East17
    kph wind from NE

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Sydney weather for Monday 22nd December 2025

Expect isolated thunderstorms in Sydney, New South Wales with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 28% chance of some rain and a moderate breeze of 21 kph from the south-east.

  • 29°C maximum temperature29
    °C maximum temperature
  • 21°C minimum temperature21
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 7 hours of bright sunshine7
    hours of sunshine
  • UV (maximum) index 11+ (Extreme)11
    UV index (Extreme)
  • 28% chance of some rain28
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 21 kph from the South-East21
    kph wind from SE

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Sydney weather for Tuesday 23rd December 2025

Expect isolated thunderstorms in Sydney, New South Wales with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 35% chance of some rain and a moderate breeze of 23 kph from the south-east.

  • 29°C maximum temperature29
    °C maximum temperature
  • 21°C minimum temperature21
    °C minimum temperature
  • Isolated thunderstorms
    isolated thunderstorms
  • 8 hours of bright sunshine8
    hours of sunshine
  • UV (maximum) index 11 (Extreme)11
    UV index (Extreme)
  • 35% chance of some rain35
    % chance of some rain
  • 0-2 mm of rainfall expected<2
    mm of rainfall expected
  • Moderate heat & humidityM
    moderate heat & humidity
  • Moderate breeze of 23 kph from the South-East23
    kph wind from SE

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  • Save on holidays & flights worldwide in the BA sale
  • Book trips to Europe, USA, Caribbean & beyond
  • Including New York, Los Angeles, Florida, Barbados & Dubai
Go to British Airways deal >>

Expires at 23:59 on Tuesday 27th Jan 2026 · View all British Airways offers

Metric (°C / mm)  |  Imperial (°F / inches)

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