What September feels like in Nairobi
September is part of Nairobi's dry season, when rain totals drop well below the wet months. Days are warm enough for short sleeves, and time outdoors is easy. Once the sun goes down the air changes: nights stay mild. Some humidity hangs in the air, noticeable when the sun is strong.
Rain in Nairobi in September
Wet days are occasional rather than regular, about one day in 5. Wet days average about 4.6 mm (0.2 in), enough to soak you without an umbrella. That is close to Nairobi's typical rain per wet day for the whole year (about 5.6 mm). It is among the three driest months of the year.
How September compares to the rest of the year
September is the 5th warmest month of the year in Nairobi. Against August, the average high is 2°C (3.6°F) higher, with about the same rain. Temperatures keep climbing into October. By October, typical highs are 25.7°C (78.3°F).
Who September suits
- Sightseeing: a good fit — the weather rarely gets in the way of a city walk.
- Parks & outdoor: a good fit — pleasant for gardens, parks and riversides.
Tips for visiting Nairobi in September
Versatile Layers
Mornings and evenings are cooler than midday, so dress in layers.
Sunglasses
Frequent sunshine — sunglasses and a light hat.
Quick questions
How warm is Nairobi in September?
Expect around 24.9°C (76.8°F) in the afternoon and 13.3°C (55.9°F) at night, which most visitors would call warm.
Does it rain a lot in Nairobi in September?
Only moderately: roughly 6 wet days and 28 mm, usually moderate rain.
What should I wear in Nairobi in September?
Based on the averages: versatile layers and sunglasses. Bring something extra for the cooler evenings.
Is September or October better for visiting Nairobi?
On our 12-month climate ranking, September comes out ahead (#2 of 12 vs #8). October has more rainy days.
