Weather in Monrovia in September
September in Monrovia is warm with average temperatures around 25.8°C (78.4°F). Expect significant rainfall with 265mm across approximately 23 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
27.9°C
82.2°F
Low
23.6°C
74.5°F
Precipitation
265 mm
10.4 inches
~23 rainy days
Conditions
Humidity
88%
Comparison to Adjacent Months
September is 133mm drier than August.
September is 56mm wetter than October.