Sydney in Summer — Weather & What to Expect
Summer in Sydney (December, January, February) averages daytime highs of 25.3°C and lows of 18.1°C, with around 372.2mm of rain across the season (42 rainy days in total). It includes some of the best months of the year to visit (December, January, February).
In the southern hemisphere, summer in Sydney covers December, January, February.
Summer in Sydney month by month
| Month | High | Low | Rain | Rainy days | Rating |
|---|---|---|---|---|---|
| December | 24.5°C | 16.7°C | 90.5mm | 12 | 10/10 |
| January | 26.0°C | 18.9°C | 114.1mm | 14 | 9/10 |
| February | 25.4°C | 18.7°C | 167.6mm | 16 | 9/10 |
What to pack for Sydney in summer
- Light layers
- Sunscreen
- T-shirts and light trousers or shorts
- Light waterproof layer
- Compact travel umbrella
- Waterproof jacket
- Quick-dry clothing
Frequently Asked Questions
Is summer a good time to visit Sydney?
Summer in Sydney rates around 9/10 — excellent time to visit. Average highs are 25.3°C with 372.2mm of rain across the season.
How hot is Sydney in summer?
Daytime highs average 25.3°C (77.5°F) across December, January, February, with nights around 18.1°C.
What months are summer in Sydney?
Sydney is in the southern hemisphere, so summer covers December, January, February.
See also: best time to visit Sydney · Sydney annual climate · Sydney in spring · Sydney in autumn · Sydney in winter
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Once you know what summer in Sydney looks like, find out exactly what to pack for Sydney at 247PackingList. For currency, language and country facts, see the Australia guide at 247CountryInfo.
Summer in Sydney — what to pack
Travel clothing layers
Pack layers — temperatures can vary significantly between day and night.
Check Price →Check clothing sizes in Australia at 247Sizing before you shop.
More summer travel essentials
Last updated:
Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.