Sydney 7-Day Weather Forecast: December 7 to December 13, 2025

Sydney residents can expect a varied week of weather, ranging from cloudy and breezy conditions to warm and humid days with occasional showers. Here is the complete Sydney 7-day weather forecast to help you plan ahead.

Sunday, December 7: Cloudy and Breezy with Spotty Showers according to Sydney 7-Day Weather Forecast

Sunday begins the week with mostly cloudy skies and breezy conditions. Temperatures will range from 22°C during the day to 18°C at night. A few isolated afternoon showers are possible, though rainfall will not be widespread.

• Probability of Rain: 55%

• RealFeel: 21°C

• UV Index: Moderate (3)

• Winds: SSE at 26 km/h

Cloud cover and breezy conditions may make outdoor activities less comfortable, especially along coastal areas.

Monday, December 8: Damp Morning, Brighter Afternoon

Monday starts with thick cloud cover and morning dampness. However, the skies will gradually brighten with periods of cloud and sunshine by afternoon. The day will feel mild to warm with temperatures between 25°C and 20°C.

• Probability of Rain: 55%

• RealFeel: 25°C

• UV Index: Moderate (5)

• Winds: NE at 20 km/h

Humidity will linger early but conditions improve later, making it a decent day for outdoor errands.

Tuesday, December 9: Hotter with Sunshine and Humidity 

Tuesday will be the warmest day of the week. Expect sunny intervals and rising humidity in the morning, followed by breezier conditions later. Daytime highs will reach 31°C, cooling to 20°C at night.

• Probability of Rain: 1%

• RealFeel: 34°C

• UV Index: Extreme (12)

• Winds: SE at 19 km/h

This is a high UV day, so sun protection is recommended.

Wednesday, December 10: Cooler with Chance of Thunderstorm according to Sydney 7-Day Weather Forecast

Temperatures will drop on Wednesday, reaching a high of 24°C. The day will stay cloudy and breezy, with a 55% chance of a thunderstorm in one or two areas.

• RealFeel: 23°C

• UV Index: Moderate (3)

• Winds: SSE at 24 km/h

Localized storms may lead to brief interruptions in outdoor plans.

Thursday, December 11: Breezy and Less Humid

Thursday brings more pleasant conditions with a mix of sun and clouds. Temperatures will stay mild at 21°C to 18°C.

• Probability of Rain: 4%

• RealFeel: 23°C

• UV Index: Extreme (12)

• Winds: SSE at 24 km/h

Lower humidity will make the day comfortable despite the strong UV index.

Friday, December 12: Cloudy with Afternoon Showers according to Sydney 7-Day Weather Forecast

Friday will be mostly cloudy and features a 69% chance of a couple of afternoon showers. Temperatures stay moderate between 23°C and 19°C.

• RealFeel: 22°C

• UV Index: Moderate (5)

• Winds: ESE at 19 km/h

Keep an umbrella handy if you plan to be outside in the afternoon.

Saturday, December 13: Warm, Humid, and Partly Sunny

Saturday ends the week with warmer and humid conditions. Expect a high of 28°C and a low of 20°C. A passing shower is possible with a 55% chance of rain.

• RealFeel: 35°C

• UV Index: Extreme (12)

• Winds: E at 15 km/h

Humidity combined with high UV levels may make the day feel significantly hotter.

Weekly Weather Summary

Sydney will experience a mix of warm, humid, and cloudy days throughout the week, with showers appearing on several occasions. The hottest day will be Tuesday, while Thursday provides the most comfortable conditions. High UV levels occur multiple days, so sun safety precautions are recommended.

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