Weather in Surabaya in January
January in Surabaya is warm with average temperatures around 27.3°C (81.1°F). Expect significant rainfall with 337mm across approximately 29 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
29.0°C
84.2°F
Low
25.6°C
78.1°F
Precipitation
337 mm
13.3 inches
~29 rainy days
Conditions
Humidity
85%
Comparison to Adjacent Months
January is 36mm wetter than December.
January is 21mm wetter than February.