Freetown weather in September
September in Freetown: hot, soaked, with clean air — not the time — 29 rainy days.
Updated September 2026 · climate normals from ERA5 reanalysis
#12 of 12 months in Freetown · #1279 of 1413 destinations to visit in September · comfort 48/100 (tier F)
- Days
- 27°C
- Nights
- 24°C
- Wet days
- 29
- Sun
- 6.9 h
- Humidity
- 86%
- Daylight
- 12 h
Traveller notes on Freetown in September
Forum posters describe August as the worst month for rain in Sierra Leone, with July a close second, and posters generally rate September as still solidly within the rainy season, if trending slightly better as the peak passes. Posters consistently name November through May as the dry season and the more comfortable overall window for visiting, implying September remains genuinely challenging weather-wise. Posters do flag one real upside to the rainy season: it's considered prime time for surfing along Sierra Leone's coast, for anyone interested in learning or already keen to surf. Posters generally rate September as wet and travel-disrupting, but not without its own specific appeal for visitors prioritizing surf conditions over dry, easy sightseeing.
Other months in Freetown
Forum posters consistently name November through May as Sierra Leone's dry season and the easier window for getting around, with March sitting comfortably within it - a sharp contrast to August and July, which posters specifically call out as the worst months for rain. Posters describe the dry season overall as tropical and pleasant, with great beaches and seafood on offer around Freetown without the logistical headaches that heavy rain brings to road travel during the wetter half of the year. Posters do note Freetown's coastal humidity stays high year-round regardless of season, so a March visit still calls for light, breathable clothing even without the rain itself to contend with.
Add your own note from Freetown's card on the map.
Freetown climate normals — September
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Crowds in Freetown in September
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
BusyMawlid (Prophet's Birthday), school holidays in 2 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet
Best months for Freetown's weather
Ranked by this destination's own climate comfort score across the year — a different thing from how busy it gets (see Crowds above).
Toughest weatherFreetown's weather peaks January–March.
September coincides with Flooding and landslides.
Best weatherFair weatherToughest weather
What's on in Freetown in September
Recurring seasonal events, natural spectacles, closures and holidays — curated and sourced.
- Hazard
Flooding and landslides
1 Jul – 30 Sep · usuallyFlood seasonClosuresThe heaviest weeks of the rains bring flash floods to the low-lying city and mudslides on the deforested hillsides; the Regent slide of August 2017 killed over a thousand people. Peninsula roads to the beaches wash out and journeys double in length. Source ↗
- Holiday
Mawlid (Prophet's Birthday)
20 Jul – 5 Sep · usuallyReligious feastClosuresThe Prophet's birthday is a public holiday in Sierra Leone, so offices and banks close and the mosques are full. It follows the Islamic calendar and moves about eleven days earlier each year, currently landing in August. Source ↗
- Season
Wet season
MonsoonRisk29 rainy days and about 695 mm in the month — the real kind of rainy season, not afternoon showers.
from the climate normals
Where is Freetown?
Freetown in September — FAQ
- Is September a good time to visit Freetown?
- September in Freetown: hot, soaked, with clean air — not the time — 29 rainy days. It ranks #12 of 12 months for Freetown on SeasonMap's comfort score (48/100).
- What is the weather like in Freetown in September?
- In September, Freetown averages a daily high of 26.7°C and a low of 24.3°C, with about 695.4 mm of rain over roughly 29.1 rainy days.
- What is the air quality in Freetown in September?
- Freetown has a mean US Air Quality Index of about 27 in September.