Monrovia weather in September 2025

Expect daytime maximum temperatures of 84°F in Monrovia, Liberia in September and high heat and humidity based on long-term weather averages. There are 3 hours of sunshine per day on average with 25 days with some rainfall and typically 23.1 inches of rainfall in the month.

  • 84°F maximum daytime temperature in September in Monrovia84
    84°F max day temperature
  • 3 hours of sunshine per day
  • 25 days with some rainfall in September in Monrovia25
    25 days with some rainfall
  • 70°F minimum night-time temperature in September in Monrovia70
    70°F min night temperature
  • 12 hours of daylight per day in September in Monrovia12
    12 hours of daylight per day
  • High heat & humidity in September in MonroviaH
    High heat & humidity
  • 23.1 inches monthly rainfall in September in Monrovia23.1
    23.1 inches of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Monrovia11
    11+ (Extreme) UV index
  • 81°F sea temperature in September in Monrovia81
    81°F sea temperature

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The September weather guide for Liberia (Monrovia) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Metric (°C)  |  Imperial (°F)

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How hot is it in Monrovia in September?

Daytime temperatures usually reach 84°F in Monrovia in September with high heat and humidity, falling to 70°F at night.

How sunny is it in Monrovia in September?

There are normally 3 hours of bright sunshine each day in Monrovia in September - that's 28% of daylight hours.

How warm is the sea around Monrovia in September?

The average sea temperature around Monrovia in September is 81°F.

Does it rain in Monrovia in September?

There are usually 25 days with some rain in Monrovia in September and the average monthly rainfall is 23.1 inches.

Monrovia September sunrise & sunset times

Browse the sunrise and sunset times for Monrovia in September 2025. Select a month to view Monrovia sunrise and sunset times for the next 12 months.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:36 18:50
Monday, 15th September 2025 06:34 18:43
Tuesday, 30th September 2025 06:31 18:35

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