Sierra Leone weather in September 2025

Expect 28°C daytime maximum temperatures in the shade with on average 4 hours of sunshine per day in Sierra Leone in September. Check more long-term weather averages for Sierra Leone in September before you book your next holiday to Sierra Leone in 2025/2026.

  • 28°C maximum daytime temperature in September in Sierra Leone (Freetown)28
    28°C max day temperature
  • 4 hours of sunshine per day
  • 24 days with some rainfall in September in Sierra Leone (Freetown)24
    24 days with some rainfall
  • 22°C minimum night-time temperature in September in Sierra Leone (Freetown)22
    22°C min night temperature
  • 12 hours of daylight per day in September in Sierra Leone (Freetown)12
    12 hours of daylight per day
  • Moderate heat & humidity in September in Sierra Leone (Freetown)M
    Moderate heat & humidity
  • 507 mm monthly rainfall in September in Sierra Leone (Freetown)507
    507 mm of monthly rainfall
  • UV (maximum) index 11+ (Extreme) in September in Sierra Leone (Freetown)11
    11+ (Extreme) UV index
  • 27°C sea temperature in September in Sierra Leone (Freetown)27
    27°C sea temperature

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The September weather guide for Sierra Leone (Freetown) 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.

Top Sierra Leone destinations

Below are average maximum temperatures at popular countries, regions and places in Sierra Leone in September. Select a holiday destination to see more weather parameters.

All Sierra Leone destinations

Metric (°C / mm)  |  Imperial (°F / inches)

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How hot is it in Sierra Leone in September?

Daytime temperatures usually reach 28°C in Freetown, Sierra Leone in September with moderate heat and humidity, falling to 22°C at night.

How sunny is it in Sierra Leone in September?

There are normally 4 hours of bright sunshine each day in Freetown, Sierra Leone in September - that's 34% of daylight hours.

How warm is the sea around Sierra Leone in September?

The average sea temperature around Freetown, Sierra Leone in September is 27°C.

Does it rain in Sierra Leone in September?

There are usually 24 days with some rain in Freetown, Sierra Leone in September and the average monthly rainfall is 507mm.

Sierra Leone September sunrise & sunset times

Browse the sunrise and sunset times for Sierra Leone in September 2025. Select a month to view Sierra Leone sunrise and sunset times for the next 12 months. The Sierra Leone sunrise and sunset times shown below are for Freetown.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Monday, 1st September 2025 06:45 19:01
Monday, 15th September 2025 06:43 18:53
Tuesday, 30th September 2025 06:41 18:44

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