Sydney in August
In August, Sydney has 50.3 mm (1.98 in) of rain, a daily high of 18.9 °C (66.0 °F) and a daily low of 9.7 °C (49.5 °F), as 1991-2020 model estimates; figures in brackets are converted. The daily high is a model estimate, adjusted against station records.
Last updated : first sourced version.
Best time to visit Sydney: August meets our rule. Expect 4.9 rain days (model estimate) and days that grow by 53 min.
What August is like in Sydney
- Cherry trees flower at Auburn Botanic Gardens in August, when the gardens are home to the Sydney Cherry Blossom Festival. Source: Sydney.com: Auburn Botanic Gardens, checked .
- From mid-August, spring plants burst into flower along the Royal Botanic Garden's Spring Walk. The air smells sweet with osmanthus. Source: Royal Botanic Garden Sydney: The Spring Walk, checked .
- Wattles flower in the Wattle Garden at Mount Annan in August, their main time to bloom. Hundreds of kinds of Acacia grow there. Source: Botanic Gardens of Sydney: Wattle Garden, checked .
- Stalls in Five Dock serve arancini, cannoli and pasta in mid-August. Ferragosto brings a taste of Italy. Source: City of Canada Bay: Ferragosto returns, a taste of Italy in Five Dock, checked .
Key figures
Weather in August, 1991-2020 model estimates
- Daily high
- 18.9 °C (66.0 °F)
- Daily low
- 9.7 °C (49.5 °F)
- Rain
- 50.3 mm (1.98 in) in the month
- Sunshine
- no data
Model estimate 1991-2020, not a weather station: ERA5-Land model estimates (Copernicus), computed by City by Month for the grid cell nearest the city. Daily high and Days with rain: model estimate, adjusted against station records. Licence: CC BY 4.0. Checked . How we make and test model estimates
Model estimate for the ERA5-Land grid cell at 33.9° S, 151.2° E, 4 km from the city centre point.
How we define and convert these figures
Notes. Sunshine: Not in our ERA5-Land estimates.
Daylight on 15 August 2026
- Sunrise
- 06:35 local time
- Sunset
- 17:25 local time
- Day length
- 10 h 51 min
Day length 1-31 August: 10 h 28 min to 11 h 21 min, +53 min.
Source: NOAA Solar Calculator equations, checked .
Month by month
Each month: daily high in °C, then rain in mm, 1991-2020 model estimates.
ERA5-Land model estimates 1991-2020, as above, checked .
This month against the year
| Measure | August | Rank |
|---|---|---|
| Daily high | 18.9 °C | 3rd coldest |
| Daily low | 9.7 °C | 2nd coldest |
| Rain | 50.3 mm | 2nd driest |
| Sunshine | no data | no data |
| Day length | 10 h 51 min | 4th shortest |
Equal values share a rank. How we rank months
Sydney in August, on average: 4.9 rain days (1 mm or more). Model estimate, adjusted against station records.
ERA5-Land model estimates 1991-2020, as above, checked .
Day length: NOAA solar equations, checked .
Public holidays this month
August 2026: none.
August 2027: none.
Checked against the official list, .
Source: holidays Python library, checked . Library: holidays 0.105.
Same month in 8 model-estimate cities
Sydney is warmer than 1 of our 8 model-estimate cities in August by mean daily high. How we rank cities
Closest high and low in August: Melbourne (3.3 °C apart), Porto (8.2), Lisbon (9.3).
| City | Gap from Sydney, °C | High, °C | Low, °C | Rain, mm | Sunshine, hours |
|---|---|---|---|---|---|
| Sydney (this page) | — | 18.9 | 9.7 | 50.3 | no data |
| Melbourne (closest) | 3.3 | 15.3 | 6.7 | 59.5 | no data |
| Porto (closest) | 8.2 | 27.7 | 17.3 | 26.3 | no data |
| Lisbon (closest) | 9.3 | 28.1 | 19.0 | 5.8 | no data |
| Istanbul | 11.0 | 29.1 | 21.4 | 23.7 | no data |
| Mumbai | 12.7 | 28.9 | 25.1 | no data | no data |
| Bangkok | 14.8 | 32.6 | 25.6 | no data | no data |
| Delhi | 15.6 | 33.7 | 26.0 | no data | no data |
Sources (1991-2020): ERA5-Land model estimates, checked . Each city's page names its grid cell. All sources in full on Methodology.
Sources
- Attribution: Copernicus Climate Change Service (2025): ERA5 Land hourly time-series data from 1950 to present. Copernicus Climate Change Service (C3S) Climate Data Store (CDS). DOI: 10.24381/ee82e357. Accessed on the check date shown. Generated using or contains modified Copernicus Climate Change Service information 2025. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains. Licence: CC BY 4.0. Checked .
- NOAA Solar Calculator equations, computed locally, NOAA Global Monitoring Laboratory (method); City by Month (computation). Attribution: Computed with the NOAA Solar Calculator method (no NOAA endorsement implied). Licence: Method, not data. Checked .
- holidays Python library, run locally. Attribution: holidays library, Vacanza team. Licence: MIT. Checked .
Cite this page: City by Month. "Sydney in August: weather, daylight, holidays". https://citybymonth.com/cities/australia/sydney/august/. Last updated 8 November 2026.