Iten weather in September

In September, Iten sees average daytime highs of 23°C and overnight lows near 13°C, with 160 mm of rain across 13.8 wet days and about 12 hours of daylight. It is the 9th-warmest and 4th-wettest month of the year here.

Highs climb over the month, from about 22°C in the first days to 24°C by the end. The sky is clear or mostly clear about 29% 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 Iten's 5th-clearest and 9th-windiest month. For the whole year in context, see Iten's year-round climate.

Daytime high
23°
9th warmest
Overnight low
13°
3rd coldest
Rainfall
160 mm
13.8 wet days
Daylight
12 hours
6:32 AM – 6:32 PM
Cloud cover
57%
5th clearest
Wind
5 km/h
9th windiest
Solar energy
6.32 kWh/m²
Travel score
6.2
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 22°C in the first days to 24°C by the end.

A typical September day in Iten reaches about 23°C in the afternoon and slips back to 13°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 25°C. Set against its neighbours, September runs about 2°C warmer than August and on par with October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12213
22213
32213
42213
52213
62313
72313
82313
92313
102313
112313
122313
132313
142313
152313
162313
172314
182314
192414
202414
212414
222414
232414
242414
252414
262414
272414
282414
292414
302414

Iten weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 14°434.2127.7
Feb27° / 14°423.5127.5
Mar27° / 15°545.3127.3
Apr26° / 15°8610.1126.5
May25° / 15°11511.4126.6
Jun23° / 14°20218.5125.4
Jul22° / 13°25925.8124.2
Aug22° / 13°29725.9124.2
Sep23° / 13°16013.8126.2
Oct24° / 14°7210.2126.9
Nov24° / 14°488.9127.0
Dec25° / 14°344.6127.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 29% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 20% of September, with mostly cloudy or overcast conditions the remaining 52%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13367
23466
33565
43664
53862
64159
74258
84456
94654
104753
114951
125149
135248
145347
155446
165446
175545
185545
195446
205446
215545
225446
235446
245347
255347
265248
275248
285149
295149
305149

Chance of precipitation in September

Any precipitation

Iten gets around 160 mm of rain over 13.8 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 47% and peaks near 75% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
175
273
371
469
567
665
762
860
957
1054
1152
1249
1347
1444
1542
1640
1739
1838
1936
2035
2135
2234
2333
2433
2533
2633
2732
2832
2932
3032

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 54% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
12773
22971
33169
43367
53565
63862
74060
84357
94555
104852
115050
125347
135545
145842
156040
166139
176337
186436
196535
206535
216634
226634
236733
246733
256733
266733
276733
286733
296733
306733

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 4 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
266calm
276calm
286calm
296calm
306calm

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 6:37 AM to 6:27 AM, and sunset from 6:38 PM to 6:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:376:38
212.06:376:38
312.06:376:37
412.06:366:37
512.06:366:37
612.06:366:36
712.06:356:36
812.06:356:36
912.06:356:35
1012.06:346:35
1112.06:346:34
1212.06:346:34
1312.06:336:34
1412.06:336:33
1512.06:336:33
1612.06:326:32
1712.06:326:32
1812.06:316:32
1912.06:316:31
2012.06:316:31
2112.06:306:30
2212.06:306:30
2312.06:306:30
2412.06:296:29
2512.06:296:29
2612.06:296:29
2712.06:286:28
2812.06:286:28
2912.06:286:27
3012.06:276:27

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.32 kWh/m².

For context, solar energy here swings from a low near 5.05 kWh/m² to a high of 6.94 kWh/m² in February across the year — September's 6.32 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
46.0Bright
56.0Intense
66.0Intense
76.1Intense
86.1Intense
96.2Intense
106.2Intense
116.2Intense
126.3Intense
136.3Intense
146.3Intense
156.4Intense
166.4Intense
176.4Intense
186.4Intense
196.4Intense
206.5Intense
216.5Intense
226.5Intense
236.5Intense
246.5Intense
256.5Intense
266.5Intense
276.5Intense
286.5Intense
296.4Intense
306.4Intense
Planning a trip in September

Hazard calendar for Iten

In seasonPeak

In September, Iten sits inside its monsoon season. The full year is below, with each hazard's peak months called out.

Iten's monsoon runs June–September, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Iten?

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

6.2
Sightseeing
9th-best month of the year
4.9
Beach & pool
9th-best month of the year

September is a reasonable time to visit Iten for sightseeing.

What to pack for Iten in September

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

In September, Iten sees daytime highs around 23°C and nights near 13°C. Pack rain gear and sun protection. Worth having: light clothes. About 14 days see rain.

rain gearsun protectionlight clothes

UV index in Iten 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 Iten peaks around March 15 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 15UV 16Jun 19UV 11
UV index (midday)Level
Jan15Extreme
Feb16Extreme
Mar17Extreme
Apr15Extreme
May13Extreme
Jun11Extreme
Jul12Extreme
Aug12Extreme
Sep14Extreme
Oct14Extreme
Nov13Extreme
Dec13Extreme

Air quality in Iten 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 Iten is worst in June — around 64 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorJun 1963 µg/m³Mar 1140 µg/m³
PM2.5 (µg/m³)Level
Jan45Poor
Feb41Poor
Mar40Poor
Apr45Poor
May54Poor
Jun64Unhealthy
Jul60Unhealthy
Aug56Unhealthy
Sep57Unhealthy
Oct50Poor
Nov45Poor
Dec44Poor
Location & terrain

Where is Iten?

Iten sits at 0.7°N, 35.5°E, 2,355 m above sea level, in Kenya. The nearest listed city is Eldoret, 31 km away.

KitaleKapsabetKimininiEldama RavineKapenguria

Topography around Iten

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

Within 3 km, the terrain around Iten has significant variations in elevation — a maximum elevation change of 471 m around an average of 2,247 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,479 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,750 m.

The land around Iten is covered by cropland (40%) and trees (29%) within 3 km, cropland (35%) and trees (31%) within 16 km, and trees (36%), shrubs (28%) and cropland (24%) within 80 km.

3 km
471 m
16 km
1,479 m
80 km
2,750 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Eldoret 31 km · Kabarnet 33 km · Moi‘s Bridge 48 km · Kitale 68 km · Kapsabet 69 km · Kiminini 69 km · Eldama Ravine 73 km · Kapenguria 77 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 Iten (0.6703°, 35.5081°, elevation 2,355 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).