Monthly climate guide
Sydney weather in August
Expect mild weather in Sydney in August: afternoons reach about 17°C (63°F), while nights drop to around 12°C (53°F). Around 52 mm of rain falls over the month (some rain), and skies are a mix of sun and cloud. Daytime highs are about the same as July and 2°C cooler than September.
What stands out in August
- Sydney is usually about 6°C warmer than Canberra, 250 km away, in August.
- August brings late winter to Sydney — the seasons are reversed south of the equator.
- August is among Sydney's three coolest months.
- Good walking weather for combining Sydney Harbour Bridge and Sydney Opera House in one day.
Avg high
17°C
63°F
Avg low
12°C
53°F
Rainfall
52 mm
some rain
Humidity
69%
relative
Sky
48%
cloud · a mix of sun and cloud
Sydney weather by month
Show the monthly averages as a table
| Month | Avg high | Avg low | Rain | Humidity | Cloud cover |
|---|---|---|---|---|---|
| January | 26°C / 79°F | 21°C / 69°F | 96 mm | 76% | 59% |
| February | 25°C / 78°F | 21°C / 70°F | 119 mm | 76% | 60% |
| March | 24°C / 76°F | 20°C / 68°F | 130 mm | 76% | 62% |
| April | 22°C / 72°F | 18°C / 64°F | 78 mm | 74% | 55% |
| May | 20°C / 67°F | 15°C / 58°F | 33 mm | 71% | 52% |
| June | 17°C / 63°F | 13°C / 56°F | 84 mm | 75% | 60% |
| July | 17°C / 62°F | 12°C / 53°F | 39 mm | 71% | 48% |
| August | 17°C / 63°F | 12°C / 53°F | 52 mm | 69% | 48% |
| September | 20°C / 67°F | 14°C / 57°F | 38 mm | 68% | 48% |
| October | 22°C / 71°F | 16°C / 60°F | 57 mm | 70% | 55% |
| November | 23°C / 74°F | 17°C / 63°F | 77 mm | 72% | 59% |
| December | 25°C / 76°F | 19°C / 66°F | 74 mm | 74% | 59% |
What to pack for August
- A warm sweater or fleece for layering
- A mid-weight jacket
- A small travel umbrella, just in case
Is August a good time to visit Sydney?
Our Sydney guide recommends: September to November or March to May — Southern Hemisphere spring and autumn, avoiding peak summer crowds and heat.
Remember Australia's seasons are reversed from the Northern Hemisphere — 'summer' here runs December to February.
Best time to visit Sydney →Other Australia cities in August
Cite or embed this data
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Sydney weather in August. WeatherCompare, 2026 (NASA POWER / ERA5, 2011–2020 monthly averages). https://weathercompare.eu/weather/australia/sydney/august
<a href="https://weathercompare.eu/weather/australia/sydney/august">Sydney weather in August</a> (WeatherCompare)
<iframe src="https://weathercompare.eu/embed/australia/sydney" width="300" height="160" style="border:0;border-radius:12px" loading="lazy" title="Sydney weather in August"></iframe> <p style="font-size:12px"><a href="https://weathercompare.eu/weather/australia/sydney/august">Sydney weather in August</a> – WeatherCompare</p>
Sydney in August: quick answers
Is August a good time to visit Sydney?
August is a reasonable time for Sydney: highs around 17°C and about 52 mm of rain, though not one of the three best months.
How warm is Sydney in August?
Average highs are about 17°C (63°F) and average lows about 12°C (53°F), based on 10 years of daily data.
Does it rain a lot in Sydney in August?
Sydney typically gets around 52 mm of rain in August — some rain.
When is the best time to visit Sydney?
September to November or March to May — Southern Hemisphere spring and autumn, avoiding peak summer crowds and heat.
Figures are long-term averages for the area around Sydney (NASA POWER / ERA5, 2011–2020), not a forecast for a specific year. For upcoming days, see the live multi-source forecast.