Weather in Singapore in September
September in Singapore is warm with average temperatures around 27.4°C (81.3°F). Expect significant rainfall with 167mm across approximately 21 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
29.5°C
85.1°F
Low
25.3°C
77.5°F
Precipitation
167 mm
6.6 inches
~21 rainy days
Conditions
Humidity
83%
Comparison to Adjacent Months
September is 43mm drier than October.