Nairobi in september: average Weather, Temperature and Climate
Weather in Nairobi in september 2025
The weather in Nairobi in september comes from statistical datas on the past years. You can view the weather statistics for the whole month, but also navigating through the tabs for the beginning, the middle and the end of the month.
Average weather throughout september
good weather UV index: 6
Weather at 6am
61°F
Partly Cloudy
51% of time
13%
12%
10%
Weather at 12pm
76°F
Clear/Sunny
45% of time
32%
20%
4%
Weather at 6pm
74°F
Moderate rain at times
35% of time
32%
26%
9%
Weather at 3am
61°F
56%
18%
11%
8%
Evolution of daily average temperature and precipitation in Nairobi in september
These charts show the evolution of average minimum/maximum temperatures as well as average daily precipitation volume in Nairobi in september.
The climate of Nairobi in september is good
The weather in september in Nairobi is wet (with 3in of precipitation over 5 days). The weather is better from the previous month since in august it receives an average of 2.8in of precipitation over 5 days.
The climate quite good around this city september. The high seasonal norm is 79°F. The minimum is 61°F. Thus, the mean temperature average in september in Nairobi is 70°F. Note that seasonal normals are in contrast with those observed in Nairobi in the month of september with a maximum record of 92°F in 2021 and a minimum record of 52°F in 2010.
On this month of september, day length in Nairobi is generally 12:06. Sunrise is at 06:25 and sets at 18:31.
With good weather conditions, the month of september is a good time to go in this locality in Kenya.
Seasonal average climate and temperature of Nairobi in september
Check below seasonal norms These datas are compiled from the weather statements earlier years of the month of september.
| September | |||||
| Outside temperature | |||||
| Average temperature | 70°F | ||||
| Highest temperature | 79°F | ||||
| Lowest temperature | 61°F | ||||
| Highest record temperature | 92°F (2021) | ||||
| Lowest record temperature | 52°F (2010) | ||||
| Number of days at +86°F | 1 day(s) (3%) | ||||
| Number of days at +65°F | 30 day(s) (100%) | ||||
| Wind | |||||
| Wind speed | 12km/h | ||||
| Wind temperature | 61°F | ||||
| Precipitation (rainfall) | |||||
| Rainfall | 3in | ||||
| Number of days with rainfall | 5 day(s) (15%) | ||||
| Record daily rainfall | 1.4in (2020) | ||||
| Other climate data | |||||
| Humidity | 88% | ||||
| Visibility | 9.43km | ||||
| Cloud cover | 37% | ||||
| UV index | 6 | ||||
| Daily sunshine hours | 12 | ||||
| Sunrise and sunset | |||||
| Time of sunrise | 06:25 | ||||
| Time of sunset | 18:31 | ||||
| Length of day | 12:06 | ||||
| Our opinion about the weather in september | |||||
| Our opinion at whereandwhen.net | good | ||||
How was the weather last september?
Here is the day by day recorded weather in Nairobi in september 2024:
56°F to 70°F
58°F to 70°F
56°F to 72°F
56°F to 65°F
54°F to 74°F
58°F to 70°F
56°F to 74°F
52°F to 76°F
58°F to 79°F
58°F to 79°F
52°F to 77°F
58°F to 77°F
52°F to 79°F
52°F to 77°F
50°F to 76°F
50°F to 76°F
56°F to 77°F
58°F to 79°F
54°F to 79°F
56°F to 79°F
58°F to 77°F
58°F to 77°F
52°F to 74°F
54°F to 76°F
54°F to 74°F
52°F to 76°F
54°F to 79°F
54°F to 77°F
56°F to 74°F
58°F to 76°F
Map: other cities in Kenya in september
Cities near Nairobi:
| Thika in september | good weather |
| Murang'a in september | good weather |
| Lake Naivasha National Park in september | good weather |
| Nyeri in september | good weather |
| Aberdare National Park in september | good weather |
| Lake Nakuru National Park in september | good weather |
| Mount Kenya National Park in september | good weather |
| Chuka in september | good weather |
| Amboseli National Park in september | perfect weather |
| Mwingi National Reserve in september | good weather |
| Kericho in september | bad weather |
| Maasai Mara National Reserve in september | good weather |
Click over cities on the map for information about the weather in september.
Nairobi
perfect weather
good
tolerable
bad
very bad
Weather data for Nairobi in september:
Weather data for Nairobi for september are derived from an average of the weather forecast since 2009 in Nairobi. There is a margin of error and these forecasts are to be considered as general information only. The weather in Nairobi can vary slightly from year to year, but this data should limit surprises. So you can pack your bags or check for the best time in year to go to Nairobi.