Adelaide weather in January
January in Adelaide: warm, dry, with clean air — an excellent time to visit.
#7 of 12 months in Adelaide · #39 of 604 destinations to visit in January · comfort 88/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Adelaide climate normals — January
| Daytime high | 28°C / 83°F | 🌤 warm |
|---|---|---|
| Nighttime low | 18°C / 64°F | |
| Feels like (high) | 28°C / 82°F | |
| Rainfall | 23 mm / 0.9 in | ☀️ dry |
| Rainy days | 4 days | |
| Humidity | 58% | 🍃 comfortable |
| Dew point | 13°C / 55°F | |
| Sunshine | 12 h/day | |
| Daylight | 14.2 h | |
| Wind | 25 km/h / 16 mph | |
| Air quality (US AQI) | 25 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Adelaide in January — FAQ
- Is January a good time to visit Adelaide?
- January in Adelaide: warm, dry, with clean air — an excellent time to visit. It ranks #7 of 12 months for Adelaide on SeasonMap's comfort score (88/100).
- What is the weather like in Adelaide in January?
- In January, Adelaide averages a daily high of 28.2°C and a low of 17.7°C, with about 23.4 mm of rain over roughly 3.8 rainy days.
- What is the air quality in Adelaide in January?
- Adelaide has a mean US Air Quality Index of about 25 in January.