Adelaide weather in August
August in Adelaide: cool, a little rain, with clean air — a great time to visit.
#10 of 12 months in Adelaide · #315 of 604 destinations to visit in August · comfort 78/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Adelaide climate normals — August
| Daytime high | 15°C / 58°F | 🙂 cool |
|---|---|---|
| Nighttime low | 9°C / 48°F | |
| Feels like (high) | 12°C / 54°F | |
| Rainfall | 55 mm / 2.1 in | 🌦 some rain |
| Rainy days | 10 days | |
| Humidity | 78% | 💦 very humid |
| Dew point | 8°C / 46°F | |
| Sunshine | 8.7 h/day | |
| Daylight | 10.8 h | |
| Wind | 23 km/h / 14 mph | |
| Air quality (US AQI) | 24 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Adelaide in August — FAQ
- Is August a good time to visit Adelaide?
- August in Adelaide: cool, a little rain, with clean air — a great time to visit. It ranks #10 of 12 months for Adelaide on SeasonMap's comfort score (78/100).
- What is the weather like in Adelaide in August?
- In August, Adelaide averages a daily high of 14.5°C and a low of 8.9°C, with about 54.6 mm of rain over roughly 10.2 rainy days.
- What is the air quality in Adelaide in August?
- Adelaide has a mean US Air Quality Index of about 24 in August.