Sydney weather in January
January in Sydney: hot, a little rain, with clean air — an excellent time to visit.
#8 of 12 months in Sydney · #120 of 604 destinations to visit in January · comfort 84/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Sydney climate normals — January
| Daytime high | 26°C / 79°F | 🥵 hot |
|---|---|---|
| Nighttime low | 20°C / 69°F | |
| Feels like (high) | 29°C / 84°F | |
| Rainfall | 67 mm / 2.6 in | 🌦 some rain |
| Rainy days | 11 days | |
| Humidity | 78% | 💦 very humid |
| Dew point | 18°C / 64°F | |
| Sunshine | 10.4 h/day | |
| Daylight | 14.1 h | |
| Wind | 18 km/h / 11 mph | |
| Air quality (US AQI) | 46 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Sydney in January — FAQ
- Is January a good time to visit Sydney?
- January in Sydney: hot, a little rain, with clean air — an excellent time to visit. It ranks #8 of 12 months for Sydney on SeasonMap's comfort score (84/100).
- What is the weather like in Sydney in January?
- In January, Sydney averages a daily high of 25.9°C and a low of 20.4°C, with about 66.9 mm of rain over roughly 10.6 rainy days.
- What is the air quality in Sydney in January?
- Sydney has a mean US Air Quality Index of about 46 in January.