Weather in Surabaya in September
September in Surabaya is warm with average temperatures around 29.6°C (85.3°F). Light rainfall with only 18mm expected.
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
33.7°C
92.7°F
Low
25.6°C
78.1°F
Precipitation
18 mm
0.7 inches
~4 rainy days
Conditions
Humidity
61%
Comparison to Adjacent Months
September is 45mm drier than October.