Avg high
27°C
Avg low
19°C
Rainfall
101 mm
Rain days
13.7
Sunshine
10.9 h/day
Daylight
14 h
What to pack for Sydney in January
- t-shirts and light layers
- a light jacket for evenings
- a compact umbrella or rain shell — rain is frequent
- expect humid, sticky conditions
Humidity averages 78%; max daily wind around 23 km/h.
How January compares
Best months in Sydney: April–May & August–September & December. See the full best time to visit Sydney guide.
Sydney in January: the details
In January, Sydney sees average daytime highs of 27°C (80°F) and overnight lows of 19°C (67°F). Rainfall totals roughly 101 mm across 13.7 rainy days, and the sun shines about 10.9 hours per day with 14 hours of daylight mid-month. Relative humidity averages 78%.
These figures are climate normals computed from the ERA5 weather reanalysis (2019–2024) for Sydney, Australia (-33.87, 151.21) — see our methodology. Actual conditions vary year to year.
Where should you go next month?
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