Weather in Sydney in January
January in Sydney is mild with average temperatures around 23.2°C (73.8°F). Moderate rainfall of 83mm spread over 12 days.
Data Note: Temperature values are 2001–2020 satellite/reanalysis grid averages from NASA POWER and may differ from airport station normals by a few degrees.
Temperature
High
25.9°C
78.6°F
Low
20.5°C
68.9°F
Precipitation
83 mm
3.3 inches
~12 rainy days
Conditions
Humidity
75%
Comparison to Adjacent Months
January is 51mm drier than February.