Nairobi weather in September
Nairobi in September averages 20°C (67°F), 19 mm of rain and 6 hours of sun a day. It is one of the driest months of the year here.
Of the twelve months in Nairobi, September is the fourth coldest, the third driest and the fifth dullest.
- Average temp
- 20°C (67°F)
13–26°C · 55–79°F
- Rainfall
- 19 mm
Not much rain
- Sunshine
- 6 h
hours per day
What is Nairobi like in September?
Daytime
Days are warm, typically in the mid-20s°C or above.
Rain
Rain is usually light.
Evening
Evenings are cooler. A layer helps after sunset.
What should I pack for Nairobi in September?
A layer for the evening
The day swings about 13°C between its low and its high.
Comfortable walking shoes you can rinse
Dry warm weather is walking weather, and dust gets into everything.
September compared with August and October
September in Nairobi is 1.4°C warmer than August and about as wet as it, which averages 18°C (65°F).
September in Nairobi is 1°C cooler than October and 29 mm drier than it, which averages 21°C (69°F).
Daylight in Nairobi in September
On 15 September the sun is up for 12 hours 6 minutes in Nairobi, rising about 06:24 and setting about 18:30 local time.
Where to stay in Nairobi
Dates are a starting point for September.
Travel guides for Nairobi
What to read before you book.
Nairobi weather by month
TemperatureRainfall
How September compares with the rest of the year
September is highlighted. Every other month links to its own page.
| Month | Average | Rainfall |
|---|---|---|
| January | 20°C / 69°F | 61 mm |
| February | 21°C / 70°F | 39 mm |
| March | 22°C / 71°F | 75 mm |
| April | 21°C / 69°F | 126 mm |
| May | 20°C / 68°F | 103 mm |
| June | 18°C / 65°F | 27 mm |
| July | 18°C / 64°F | 11 mm |
| August | 18°C / 65°F | 18 mm |
| September | 20°C / 67°F | 19 mm |
| October | 21°C / 69°F | 48 mm |
| November | 20°C / 69°F | 128 mm |
| December | 20°C / 69°F | 86 mm |
Check another month
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FAQs about Nairobi in September
September climate averages for Nairobi, 1991–2020.
Nairobi averages 20°C (67°F) in September, ranging from about 13°C (55°F) at night to 26°C (79°F) in the afternoon. That is a 1991–2020 average, so an individual week can run either side of it.
Barely. September sees only about 19 mm, so rain is unlikely to affect your plans.
No. September averages 20°C (67°F) against 21°C (69°F) in October — 1°C cooler.
September is 1.4°C warmer than August, and about as wet.
Yes. September falls inside the most comfortable stretch of the year here, June to October, on temperature and rainfall together.
About 6 hours of sun a day on the 1991–2020 average.
This page does not show today's weather. It is a 1991–2020 climate normal from Meteostat — a long-run average of what September is usually like, which is what you want when booking months ahead. For today or the coming week, check a live forecast.
About 12 hours 6 minutes of daylight in mid-September, against 12 hours 12 minutes in December and 12 hours 3 minutes in May.
On 15 September, sunrise is about 06:24 and sunset about 18:30 local time. Both shift across the month.
