Machakos weather in September

In September, Machakos sees average daytime highs of 25°C and overnight lows near 15°C, with 7 mm of rain across 1.5 wet days and about 12 hours of daylight. It is the 6th-warmest and 11th-wettest month of the year here.

Highs climb over the month, from about 24°C in the first days to 26°C by the end. The sky is clear or mostly clear about 22% 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 Machakos's 6th-clearest and 2nd-windiest month. For the whole year in context, see Machakos's year-round climate.

Daytime high
25°
6th warmest
Overnight low
15°
4th coldest
Rainfall
7 mm
1.5 wet days
Daylight
12 hours
6:26 AM – 6:25 PM
Cloud cover
60%
6th clearest
Wind
9 km/h
2nd windiest
Solar energy
5.74 kWh/m²
Travel score
8.0
out of 10

Machakos is municipality in Machakos County, Kenya.

Founded
1887

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 24°C in the first days to 26°C by the end.

A typical September day in Machakos reaches about 25°C in the afternoon and slips back to 15°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 27°C. Set against its neighbours, September runs about 2°C warmer than August and about 1°C cooler than October.

10°15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12414
22414
32414
42414
52414
62414
72414
82414
92414
102514
112514
122514
132514
142514
152514
162515
172515
182515
192515
202515
212615
222615
232615
242615
252615
262615
272615
282615
292615
302615

Machakos weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 11th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 16°501012.16.9
Feb27° / 16°417.9126.8
Mar27° / 17°9015.3125.9
Apr25° / 17°15122.5124.8
May24° / 16°721511.96.2
Jun23° / 15°184.711.97.2
Jul23° / 14°61.611.97.5
Aug23° / 14°91.7127.6
Sep25° / 15°71.5128.0
Oct26° / 16°418.5126.9
Nov24° / 16°15522.812.14.9
Dec24° / 16°9218.612.15.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 22% of September, with mostly cloudy or overcast conditions the remaining 55%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12773
22872
32971
42971
53169
63268
73466
83565
93763
103961
114159
124258
134456
144654
154753
164951
175050
185149
195248
205446
215446
225545
235545
245545
255545
265545
275545
285545
295446
305545

Chance of precipitation in September

Any precipitation

Machakos gets around 7 mm of rain over 1.5 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 6% and peaks near 7% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
15
25
35
45
55
65
75
85
95
105
115
125
135
146
156
166
176
186
196
206
216
226
236
246
256
266
276
286
297
307

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 75% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
180200
280200
380200
479210
579210
678220
778220
878220
977230
1077230
1177230
1277230
1377230
1477230
1577230
1677230
1777230
1877230
1977230
2076240
2176240
2275250
2373261
2472271
2571281
2669301
2768311
2866331
2964342
3062362

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

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 6:32 AM to 6:20 AM, and sunset from 6:30 PM to 6:21 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:326:30
212.06:316:29
312.06:316:29
412.06:306:29
512.06:306:29
612.06:306:28
712.06:296:28
812.06:296:28
912.06:286:27
1012.06:286:27
1112.06:286:27
1212.06:276:26
1312.06:276:26
1412.06:266:26
1512.06:266:25
1612.06:266:25
1712.06:256:25
1812.06:256:24
1912.06:246:24
2012.06:246:24
2112.06:236:23
2212.06:236:23
2312.06:236:23
2412.06:226:22
2512.06:226:22
2612.06:216:22
2712.06:216:21
2812.06:216:21
2912.06:206:21
3012.06:206:21

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.74 kWh/m².

For context, solar energy here swings from a low near 4.14 kWh/m² to a high of 6.73 kWh/m² in February across the year — September's 5.74 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.9Bright
25.0Bright
35.0Bright
45.1Bright
55.1Bright
65.2Bright
75.2Bright
85.3Bright
95.4Bright
105.4Bright
115.5Bright
125.6Bright
135.6Bright
145.7Bright
155.8Bright
165.8Bright
175.9Bright
185.9Bright
196.0Bright
206.0Intense
216.0Intense
226.1Intense
236.1Intense
246.1Intense
256.2Intense
266.2Intense
276.2Intense
286.2Intense
296.2Intense
306.2Intense
Planning a trip in September

Is September a good time to visit Machakos?

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

8.0
Sightseeing
1st-best month of the year
7.2
Beach & pool
1st-best month of the year

September is one of the better times to visit Machakos for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Machakos in September

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

In September, Machakos sees daytime highs around 25°C and nights near 15°C. Worth packing: light clothes and sun protection.

light clothessun protection

UV index in Machakos 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 Machakos peaks around March 17 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 17UV 16Jun 18UV 10
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun10Extreme
Jul11Extreme
Aug12Extreme
Sep14Extreme
Oct14Extreme
Nov14Extreme
Dec13Extreme

Air quality in Machakos 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 Machakos is worst in December — around 29 µg/m³ PM2.5 (moderate), about 2.3× the cleanest month (October, 13 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateDec 2129 µg/m³Oct 913 µg/m³
PM2.5 (µg/m³)Level
Jan28Moderate
Feb24Moderate
Mar23Moderate
Apr25Moderate
May23Moderate
Jun25Moderate
Jul22Moderate
Aug17Moderate
Sep13Moderate
Oct13Moderate
Nov22Moderate
Dec29Moderate
Location & terrain

Where is Machakos?

Machakos sits at 1.5°S, 37.3°E, 1,619 m above sea level, in Kenya. The nearest listed city is Kinoi, 19 km away.

Topography around Machakos

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

Within 3 km, the terrain around Machakos has significant variations in elevation — a maximum elevation change of 517 m around an average of 1,664 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 905 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,607 m.

The land around Machakos is covered by shrubs (32%) within 3 km, shrubs (39%), grassland (27%) and cropland (22%) within 16 km, and shrubs (40%) and grassland (33%) within 80 km.

3 km
517 m
16 km
905 m
80 km
1,607 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Kinoi 19 km · Mwala 28 km · Athi River 33 km · Kitengela 34 km · Mlolongo 39 km · Githunguri 39 km · Imara Daima Estate 48 km · Wote 50 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 Machakos (-1.5223°, 37.2652°, elevation 1,619 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).