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Climate · Nairobi

Nairobi in September

Warm and mostly dry, as the days hold steady.

Typical weather, averaged over 30 years

September in Nairobi is warm: highs near 79°F, lows near 56°F. Rain falls on about one day a week, less often as the month goes on, and daylight holds at about 12 hours 6 minutes.September in Nairobi is warm: highs near 26°C, lows near 13°C. Rain falls on about one day a week, less often as the month goes on, and daylight holds at about 12 hours 6 minutes.

High
79°F26°Caverage
Low
56°F13°Caverage
Wet days
1a week · 15% of days
Daylight
12h 06mon average

Is September a good time to visit Nairobi?

Yes. September is one of Nairobi's best months (June to September).

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

How September sits in the year

week by week

Temperature

Highs near 79°F in September, against 75°F to 83°F through the year.Highs near 26°C in September, against 24°C to 28°C through the year.

Chance of a wet day

15% of days in September, against 12% to 74% through the year.

Cloud cover

59% cover in September, against 59% to 75% through the year.

Daylight

12h 06m in September, against 12h 03m to 12h 12m through the year.

Week by week, lightly smoothed, with September shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. August76°24°low 55°low 13°1 wet day a weekRain on about one day a week.
  2. September79°26°low 56°low 13°1 wet day a weekRain on about one day a week.
  3. October81°27°low 58°low 14°2 wet days a weekRain on about two days a week.

Where Nairobi sits, in September

Africa/Nairobi
this place
typical high in September 40°F4°C95°F35°C
Sunrise, mid-September
6:25 AMsets 6:31 PM
Above the sea
1,670 mhigh country
Latitude
1.3°Ssouthern hemisphere
Nearest of ours
Masai Mara192 km west

The land around Nairobi, shaded by its typical high in September, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Elsewhere in Kenya in September

high · low · wet days
See September on the planning mapThe whole year in Nairobi

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Nairobi. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match.Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match. Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.