Kimilili weather in September

In September, Kimilili sees average daytime highs of 24°C and overnight lows near 14°C, with 175 mm of rain across 18.5 wet days and about 12 hours of daylight. It is the 9th-warmest and 6th-wettest month of the year here.

Day-to-day highs hold fairly steady near 24°C through the month. The sky is clear or mostly clear about 17% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 hours at the start of September to 12 hours by month's end. Set against the rest of the year, September is Kimilili's 5th-clearest and 7th-windiest month. For the whole year in context, see Kimilili's year-round climate.

Daytime high
24°
9th warmest
Overnight low
14°
3rd coldest
Rainfall
175 mm
18.5 wet days
Daylight
12 hours
6:35 AM – 6:36 PM
Cloud cover
63%
5th clearest
Wind
5 km/h
7th windiest
Solar energy
5.36 kWh/m²
Travel score
5.5
out of 10

Kimilili is human settlement.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 24°C through the month.

A typical September day in Kimilili reaches about 24°C in the afternoon and slips back to 14°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 26°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12414
22414
32414
42414
52414
62414
72414
82414
92414
102414
112414
122414
132414
142414
152414
162514
172514
182514
192514
202514
212514
222514
232514
242514
252514
262514
272514
282514
292514
302514

Kimilili weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 14°607.8126.9
Feb28° / 15°666.6126.4
Mar28° / 15°12511.6126.0
Apr26° / 16°18920.3124.8
May25° / 15°21322.1125.0
Jun24° / 14°21322.2124.9
Jul23° / 14°22327.1124.1
Aug23° / 14°26626.4124.3
Sep24° / 14°17518.5125.5
Oct25° / 15°14019.2125.3
Nov25° / 15°10416125.6
Dec26° / 14°668.5126.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 27% of September, with mostly cloudy or overcast conditions the remaining 56%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13763
23862
33862
43961
54258
64357
74357
84456
94654
104753
114753
124951
134951
144951
154951
164852
174852
184852
194753
204753
214654
224456
234456
244357
254357
264159
274159
284060
294060
304060

Chance of precipitation in September

Any precipitation

Kimilili gets around 175 mm of rain over 18.5 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 62% and peaks near 78% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
178
277
376
475
573
672
771
869
968
1066
1165
1263
1362
1460
1559
1658
1757
1857
1956
2056
2155
2255
2355
2455
2555
2655
2755
2855
2955
3055

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 63% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
14852
24951
35050
45149
55347
65446
75644
85743
95941
106040
116238
126337
136535
146634
156733
166832
176931
186931
197030
207030
217129
227129
237129
247030
257030
266931
276931
286832
296832
306733

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 5 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
15calm
25calm
35calm
45calm
55calm
65calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 hours at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 0 minutes over September. Sunrise moves from 6:40 AM to 6:31 AM, and sunset from 6:41 PM to 6:30 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:406:41
212.06:406:41
312.06:406:41
412.06:396:40
512.06:396:40
612.06:396:39
712.06:386:39
812.06:386:39
912.06:386:38
1012.06:376:38
1112.06:376:38
1212.06:376:37
1312.06:366:37
1412.06:366:36
1512.06:366:36
1612.06:356:36
1712.06:356:35
1812.06:356:35
1912.06:346:34
2012.06:346:34
2112.06:346:34
2212.06:336:33
2312.06:336:33
2412.06:336:32
2512.06:326:32
2612.06:326:32
2712.06:326:31
2812.06:316:31
2912.06:316:31
3012.06:316:30

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.36 kWh/m².

For context, solar energy here swings from a low near 4.33 kWh/m² to a high of 6.39 kWh/m² in February across the year — September's 5.36 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.1Bright
65.1Bright
75.1Bright
85.2Bright
95.2Bright
105.2Bright
115.3Bright
125.3Bright
135.3Bright
145.4Bright
155.4Bright
165.4Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in September

Is September a good time to visit Kimilili?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.5
Sightseeing
6th-best month of the year
4.7
Beach & pool
7th-best month of the year

September is a reasonable time to visit Kimilili for sightseeing.

What to pack for Kimilili in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Kimilili sees daytime highs around 24°C and nights near 14°C. Pack rain gear. Worth having: light clothes and sun protection. About 19 days see rain.

rain gearlight clothessun protection

UV index in Kimilili in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 14 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kimilili peaks around March 14 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 11 (extreme).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 14UV 16Jun 20UV 11
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug12Extreme
Sep14Extreme
Oct14Extreme
Nov13Extreme
Dec12Extreme

Air quality in Kimilili in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Kimilili is worst in December — around 83 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.

Modeled monthly averages (CAMS reanalysis, 2015–2024).

0306090JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyDec 1883 µg/m³Aug 2270 µg/m³
PM2.5 (µg/m³)Level
Jan82Unhealthy
Feb80Unhealthy
Mar79Unhealthy
Apr74Unhealthy
May73Unhealthy
Jun78Unhealthy
Jul74Unhealthy
Aug70Unhealthy
Sep71Unhealthy
Oct75Unhealthy
Nov81Unhealthy
Dec83Unhealthy
Location & terrain

Where is Kimilili?

Kimilili sits at 0.8°N, 34.7°E, 1,697 m above sea level, in Kenya. The nearest listed city is Webuye, 22 km away.

Topography around Kimilili

How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Kimilili.

Within 3 km, the terrain around Kimilili has only modest variations in elevation — a maximum elevation change of 124 m around an average of 1,686 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,120 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,231 m.

The land around Kimilili is covered by trees (44%) and cropland (36%) within 3 km, cropland (45%) and trees (32%) within 16 km, and cropland (36%), trees (27%) and shrubs (23%) within 80 km.

3 km
124 m
16 km
1,120 m
80 km
3,231 m
treesshrubsgrasslandcroplandartificial surfaces
September weather nearby: Webuye 22 km · Kiminini 26 km · Bungoma 30 km · Kitale 41 km · Moi‘s Bridge 46 km · Malaba 51 km · Manafwa 53 km · Malaba 53 km

Kenya travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type G
240 V · 50 Hz
Prices
≈ 34% of US
price level, 2025
GDP per capita
$2,363
2025
Happiness
4.7 / 10
World Happiness, 2025
Homicide rate
4.9
per 100k, 2022
Road deaths
28.3
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
High
EF EPI 593
Religion
Christian 86%Muslim 11%other 2%none 2%

Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.

Data sources

Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Kimilili (0.7877°, 34.7156°, elevation 1,697 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Monthly air-quality (PM2.5) seasonality is from the CAMS EAC4 reanalysis (Copernicus Atmosphere Monitoring Service), scaled to the WHO annual mean where available. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).