Adelaide weather in August
Temperature, sea and sunshine in August: long-term averages from 30 years of weather data, not a forecast.
Holiday weather in August
Good
Best time to visit: October – April
What is the weather like in Adelaide in August?
In August, Adelaide is cool: daytime highs average 15 °C, and nights cool down to about 8 °C. The sea averages 13.0 °C – swimming is only for the hardy. Expect around 6 hours of sunshine a day. Rain is frequent, with about 10 rainy days and 53 mm in total. All in all, August is a good month for a holiday in Adelaide.
August compared
How the weather changes from July to September. Tap a month to open it.
| JulyJul | AugustAug | SeptemberSep | |
|---|---|---|---|
| Score | 52 | 61 | 81 |
| Day | 14° | 15° | 17° |
| Night | 8° | 8° | 9° |
| Sea | 13° | 13° | 14° |
| Sun | 5 h | 6 h | 7 h |
| Rain days | 10 | 10 | 9 |
More details for August
- Daylight
- 10 h 46 min06:57 – 17:44
- UV index
- 4 · moderateclear sky, noon (estimate)All months
- Muggy days
- 0 daysdew point 18 °C or moreAll months
- Wind
- 24 km/haverage daily peakAll months
- Cloud cover
- 49 %on averageAll months
- Hot days
- 0 days30 °C or moreAll months
- Time zone
- UTC+9:30Australia/Adelaide
How the score comes together
- Temperatureweight 50 %67 %
- Sunshineweight 20 %52 %
- Few rainy daysweight 30 %57 %
Each factor is rated from 0 to 100 % and weighted for the travel style “City break”.
What to pack in August
- Sunscreen
- A jumper for the evenings
- Rain jacket or umbrella
Adelaide in August: quick answers
Is Adelaide hot in August?
No. In August, Adelaide is cool: daytime highs average 15 °C and nights drop to about 8 °C.
Can you swim in Adelaide in August?
Only if you don't mind cold water: in August the sea averages just 13.0 °C. Comfortable swimming is possible from January to March.
Does it rain much in Adelaide in August?
Rain is frequent, with about 10 rainy days and 53 mm in total.
Adelaide month by month
The whole year in AdelaideAll destinations: AustraliaWhere to go in AugustSea temperature in August
Climate averages 1996–2025, not a forecast. Data: Copernicus ERA5 / ERA5-Land via Open-Meteo.com (CC BY 4.0), NOAA OISST, WMO 1991–2020 (NOAA NCEI), GeoNames (CC BY 4.0). Sources & licences