September · Sierra Leone
Best time to visit Bo in September Weather, crowds & prices
Weather in Bo in September
Average temperature 24°C, 530 mm of rain, about 16 days with 6+ hours of sunshine and 93% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
September score
3.5/10
Ranked #11 of 12 months
- Avg temp
- 24°C
- Rainfall
- 530 mm
- Humidity
- 93%
- Days with 6h+ sun
- 16
- Crowd Density
- Quiet / Uncrowded
- Average Expenses
- $ · Budget Friendly ($)
September in Bo scores 3.5/10 for sightseeing and cultural travel - ranked #11 of 12. Expect around 24°C, 530 mm of rain, and roughly 16 days with 6+ hours of sunshine this month.
Bo is Sierra Leone's energetic southern regional city, with markets, education, local commerce, and road connections toward the country's forests and coast.
September in Bo — the hardest end of the year
At 24°C (76°F) this is comfortable city weather in September, with sightseeing easiest before lunch and after the afternoon peak.
Expect monsoon-level rainfall at 530 mm: only about 16 days with 6+ hours of sunshine across the month, and stretches of heavy rain are normal.
That is 3.5/10 on the same scale — 11th of 12 months, versus 8.3/10 for the best month here.
Pack light clothing, a hat and real sun protection, a proper rain shell rather than an umbrella.
Expect low-season pricing, and crowds are light for this destination.
If your dates are flexible, December is materially better in Bo — 4.8 points higher on the same scale.
Frequently asked
- What is the weather like in Bo in September?
- In September, Bo averages 24°C, 530 mm of rain, and about 16 days with 6+ hours of sunshine. Its climate-comfort score is 3.5/10.
- Is September a good time to visit Bo?
- September earns a 3.5/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Bo in September?
- Expect about 530 mm of rain in September. Average humidity is 93% and there are about 16 days with 6+ hours of sunshine.
Curated in Bo
Tickets & experiences
Things to do in Bo
Bo, Sierra Leone. Live activities and tours from GetYourGuide, matched to this destination.