Kiambu weather in May

In May, Kiambu sees average daytime highs of 24°C and overnight lows near 15°C, with 92 mm of rain across 16.1 wet days and about 11.9 hours of daylight. It is the 9th-warmest and 2nd-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 11% of the time in May, and the air most often feels comfortable.

Daylight stretches from about 12 hours at the start of May to 11 h 54 min by month's end. Set against the rest of the year, May is Kiambu's 9th-clearest and 10th-windiest month. For the whole year in context, see Kiambu's year-round climate.

Daytime high
24°
9th warmest
Overnight low
15°
10th coldest
Rainfall
92 mm
16.1 wet days
Daylight
11 h 54 min
6:30 AM – 6:27 PM
Cloud cover
68%
9th clearest
Wind
7 km/h
10th windiest
Solar energy
4.99 kWh/m²
Travel score
5.9
out of 10

Kiambu is town in Kiambu County, Kenya.

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

Temperature in May

Average highAverage lowShaded bands: 10–90% of days

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

A typical May day in Kiambu reaches about 24°C in the afternoon and slips back to 15°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 25°C. Set against its neighbours, May runs about 2°C cooler than April and about 1°C warmer than June.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12416
22416
32416
42416
52416
62416
72416
82416
92416
102416
112416
122416
132415
142415
152415
162415
172415
182415
192415
202415
212415
222415
232315
242315
252315
262315
272315
282315
292315
302314
312314

Kiambu weather by month

How May compares with the rest of the year at a glance. May is the 9th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 14°356.312.17.4
Feb27° / 15°294.7127.3
Mar27° / 16°5710.3126.6
Apr25° / 16°11419.4125.2
May24° / 15°9216.111.95.9
Jun22° / 14°427.911.96.6
Jul22° / 13°133.211.97.1
Aug23° / 13°213.9127.1
Sep24° / 13°163.3127.8
Oct25° / 15°409.3126.8
Nov24° / 15°8317.612.15.7
Dec25° / 14°4710.212.17.0

Cloud cover in May

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% of the time in May.

Beyond those clear spells, partly cloudy skies cover about 25% of May, with mostly cloudy or overcast conditions the remaining 65%.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
13169
23169
33268
43268
53367
63367
73466
83565
93565
103565
113664
123862
133763
143862
153862
163763
173763
183862
193862
203763
213763
223664
233763
243763
253763
263664
273565
283565
293466
303466
313367

Chance of precipitation in May

Any precipitation

Kiambu gets around 92 mm of rain over 16.1 wet days in May. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 52% and peaks near 69% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202531
Rain chance (%)
169
269
368
468
567
667
766
865
963
1062
1160
1259
1357
1455
1553
1652
1750
1848
1946
2044
2143
2241
2340
2439
2538
2637
2736
2836
2936
3035
3135

Humidity in May

DryComfortableHumidMuggyOppressiveMiserable

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

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

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
135542
235641
335641
435641
535740
635839
735938
836136
936235
1046333
1156431
1256629
1366727
1476825
1596823
16106921
17117019
18136918
19156916
20166915
21186913
22206812
23226711
24246511
25266410
26286210
27306010
2831609
2932599
3033589
3134579

Wind in May

Winds average 7 km/h in May.

Across May, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202531
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
158calm
168calm
178calm
188calm
198calm
208calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm
317calm

Sunrise & sunset in May

DaylightNight

Daylight runs from about 12 hours at the start of May to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over May. Sunrise moves from 6:31 AM to 6:32 AM, and sunset from 6:29 PM to 6:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:316:29
212.06:316:28
312.06:316:28
412.06:316:28
512.06:316:28
612.06:316:28
712.06:316:28
812.06:316:28
912.06:306:28
1012.06:306:28
1112.06:306:28
1212.06:306:27
1311.96:306:27
1411.96:306:27
1511.96:306:27
1611.96:306:27
1711.96:316:27
1811.96:316:27
1911.96:316:27
2011.96:316:27
2111.96:316:27
2211.96:316:27
2311.96:316:27
2411.96:316:28
2511.96:316:28
2611.96:316:28
2711.96:316:28
2811.96:316:28
2911.96:326:28
3011.96:326:28
3111.96:326:28

Solar energy in May

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in May, about 4.99 kWh/m².

For context, solar energy here swings from a low near 4.14 kWh/m² to a high of 6.81 kWh/m² in February across the year — May's 4.99 kWh/m² falls in the middle.

0246151015202531
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
284.9Bright
294.9Bright
304.9Bright
314.9Bright
Planning a trip in May

Hazard calendar for Kiambu

In seasonPeak

In May, Kiambu sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Kiambu's rainy season runs March–May, when most of the year's rain falls.

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

Is May a good time to visit Kiambu?

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

5.9
Sightseeing
10th-best month of the year
4.8
Beach & pool
11th-best month of the year

May is a reasonable time to visit Kiambu for sightseeing.

What to pack for Kiambu in May

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

In May, Kiambu sees daytime highs around 24°C and nights near 15°C. Pack rain gear. Worth having: light clothes and sun protection. About 16 days see rain.

rain gearlight clothessun protection

UV index in Kiambu in May

LowModerateHighVery highExtreme

Clear-sky midday UV in May peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kiambu peaks around March 15 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 15UV 16Jun 20UV 10
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar16Extreme
Apr15Extreme
May11Extreme
Jun10Extreme
Jul11Extreme
Aug12Extreme
Sep14Extreme
Oct14Extreme
Nov14Extreme
Dec13Extreme

Air quality in Kiambu in May

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Kiambu is worst in June — around 53 µg/m³ PM2.5 (poor), and holds fairly steady the rest of the year.

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorJun 1652 µg/m³Oct 1033 µg/m³
PM2.5 (µg/m³)Level
Jan48Poor
Feb43Poor
Mar41Poor
Apr44Poor
May47Poor
Jun53Poor
Jul48Poor
Aug39Poor
Sep34Moderate
Oct33Moderate
Nov45Poor
Dec50Poor
Location & terrain

Where is Kiambu?

Kiambu sits at 1.2°S, 36.8°E, 1,683 m above sea level, in Kenya. The nearest listed city is Karuri, 9.0 km away.

Topography around Kiambu

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

Within 3 km, the terrain around Kiambu has only modest variations in elevation — a maximum elevation change of 217 m around an average of 1,696 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 696 m; within 80 km, extreme variations in elevation — a maximum elevation change of 3,171 m.

The land around Kiambu is covered by trees (50%) within 3 km, trees (40%), artificial surfaces (25%) and shrubs (21%) within 16 km, and grassland (35%) and shrubs (30%) within 80 km.

3 km
217 m
16 km
696 m
80 km
3,171 m
treesshrubsgrasslandcroplandartificial surfaceswater
May weather nearby: Karuri 9.0 km · Pumwani 12 km · Nairobi 13 km · Ruiru 14 km · Githunguri 14 km · Imara Daima Estate 18 km · Kikuyu 21 km · Juja 21 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 Kiambu (-1.1714°, 36.8356°, elevation 1,683 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).