Sydney weather in August
In August, Sydney has an average high of 17 °C63 °F and an average low of 12 °C53 °F, with about 46 mm1.8 in of precipitation. It is the 11th warmest month of the year and ranks 10th for precipitation.
How August compares with other months
Compared with July, August is about the same temperature. Compared with September, August is 2.1 °C3.7 °F cooler on average. Daylight lasts about 10.9 hours around the middle of the month. Average relative humidity is 69% and the average cloud amount 46%.
Is August a good time to visit Sydney?
August is not among the most comfortable months by our comfort score: it is cool (average high 17 °C63 °F). The most comfortable months in Sydney are September–January and April and May.
What to wear in August
For Sydney in August, pack long sleeves, a sweater and a medium jacket.
August in nearby places
| Place | High °C°F | Low °C°F | Precip. mmin |
|---|---|---|---|
| Sydney | 1763 | 1253 | 461.8 |
| Liverpool | 1864 | 642 | 552.2 |
| Central Coast | 1864 | 948 | 431.7 |
| Richmond (New South Wales) | 1864 | 744 | 471.9 |
| Wollongong | 1762 | 846 | 582.3 |
| Newcastle | 1864 | 1254 | 512.0 |
| Nowra | 1762 | 1049 | 652.6 |
| Maitland | 1965 | 644 | 371.4 |
| Orange | 1153 | 134 | 411.6 |
Nearby places that are more than 1 °C1.8 °F cooler: Liverpool, Richmond (New South Wales), Wollongong and Nowra.
Other months in Sydney
- January25 °C78 °F / 20 °C68 °F
- February25 °C77 °F / 20 °C69 °F
- March24 °C75 °F / 19 °C67 °F
- April22 °C71 °F / 17 °C63 °F
- May19 °C67 °F / 15 °C58 °F
- June17 °C63 °F / 13 °C55 °F
- July16 °C61 °F / 11 °C52 °F
- August17 °C63 °F / 12 °C53 °F
- September19 °C67 °F / 13 °C56 °F
- October21 °C70 °F / 15 °C59 °F
- November23 °C73 °F / 17 °C62 °F
- December24 °C75 °F / 18 °C65 °F
Frequently asked questions
How warm is Sydney in August?
In August the average high in Sydney is 17 °C (63 °F) and the average low is 12 °C (53 °F).
Does it rain a lot in Sydney in August?
On average about 46 mm (1.8 in) of precipitation falls in August; it ranks 10th of the 12 months.
Is August the warmest month in Sydney?
No. The warmest month in Sydney is January, with an average high of 25 °C (78 °F). The coldest month is July, with an average low of 11 °C (52 °F).
How long is the day in Sydney in August?
In the middle of August the day in Sydney lasts about 10.9 hours from sunrise to sunset. The value is calculated from the position of the city and the sun.
How humid is Sydney in August?
The average relative humidity in August is about 69%. This is a long-term average for the whole day.
How cloudy is Sydney in August?
On average about 46% of the sky is covered by cloud in August. This is the mean cloud amount from satellite data, not the number of sunny days.
About this data
All figures are 25-year averages (January 2001 – December 2025) from the NASA POWER project. Temperature, humidity, wind and precipitation come from the MERRA-2 reanalysis (precipitation is the bias-corrected MERRA-2 product), cloud and solar values from CERES satellite data. They describe a grid cell of roughly 50–70 km, not a single weather station, so they can differ from airport records — most of all on coasts, in mountains and for rainfall. Average highs and lows are the monthly mean temperature plus/minus half of the average daily temperature range. Counts of rainy days are not part of this dataset.