Isiolo weather in April

In April, Isiolo sees average daytime highs of 27°C and overnight lows near 17°C, with 76 mm of rain across 11.3 wet days and about 12 hours of daylight. It is the 3rd-warmest and 2nd-wettest month of the year here.

Day-to-day highs hold fairly steady near 27°C through the month. The sky is clear or mostly clear about 32% of the time in April, and the air most often feels comfortable.

Daylight stretches from about 12 hours at the start of April to 12 hours by month's end. Set against the rest of the year, April is Isiolo's 10th-clearest and 8th-windiest month. For the whole year in context, see Isiolo's year-round climate.

Daytime high
27°
3rd warmest
Overnight low
17°
12th coldest
Rainfall
76 mm
11.3 wet days
Daylight
12 hours
6:30 AM – 6:30 PM
Cloud cover
56%
10th clearest
Wind
8 km/h
8th windiest
Solar energy
5.97 kWh/m²
Travel score
6.4
out of 10

Isiolo is city.

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

Temperature in April

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 27°C through the month.

A typical April day in Isiolo reaches about 27°C in the afternoon and slips back to 17°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 28°C. Set against its neighbours, April runs on par with March and on par with May.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12717
22717
32717
42717
52717
62717
72717
82717
92717
102717
112717
122717
132717
142717
152717
162717
172717
182717
192617
202617
212617
222617
232617
242617
252617
262617
272617
282617
292617
302617

Isiolo weather by month

How April compares with the rest of the year at a glance. April is the 3rd-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 15°418.2127.3
Feb27° / 15°234.9127.4
Mar27° / 16°438.6126.9
Apr27° / 17°7611.3126.4
May26° / 17°477.5127.2
Jun25° / 16°285.6127.5
Jul24° / 15°387.8127.3
Aug25° / 15°409.1127.1
Sep26° / 16°275.7127.6
Oct26° / 16°5310126.8
Nov24° / 16°9919.8125.5
Dec25° / 15°5513.3126.6

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 32% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 23% of April, with mostly cloudy or overcast conditions the remaining 45%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16040
26040
35941
45941
55842
65842
75842
85644
95644
105644
115644
125644
135545
145644
155644
165644
175644
185545
195545
205446
215446
225347
235347
245347
255149
265149
275149
285149
295149
305347

Chance of precipitation in April

Any precipitation

Isiolo gets around 76 mm of rain over 11.3 wet days in April. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 38% and peaks near 44% on the wettest days.

0%10%20%30%40%50%151015202530
Rain chance (%)
139
239
339
438
538
637
736
836
935
1035
1135
1234
1334
1435
1535
1635
1735
1836
1937
2037
2139
2240
2341
2442
2543
2643
2744
2844
2944
3044

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the comfortable band about 62% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
1246016
2245917
3236017
4226018
5225919
6216019
7206119
8196120
9186220
10176221
11166321
12156322
13146323
14136423
15126424
16126424
17116425
18106525
19106426
2096427
2196328
2286329
2386131
2486032
2576033
2675934
2775934
2875934
2966034
3066034

Wind in April

Winds average 8 km/h in April.

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

0246810151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

Sunrise & sunset in April

DaylightNight

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

Days grow by about 0 minutes over April. Sunrise moves from 6:34 AM to 6:27 AM, and sunset from 6:34 PM to 6:27 PM.

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

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.97 kWh/m².

For context, solar energy here swings from a low near 5.36 kWh/m² to a high of 6.82 kWh/m² in February across the year — April's 5.97 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.2Intense
46.2Intense
56.2Intense
66.2Intense
76.2Intense
86.1Intense
96.1Intense
106.1Intense
116.1Intense
126.0Intense
136.0Intense
146.0Intense
156.0Bright
166.0Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
Planning a trip in April

Is April a good time to visit Isiolo?

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

6.4
Sightseeing
11th-best month of the year
6.3
Beach & pool
9th-best month of the year

April is a reasonable time to visit Isiolo for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Isiolo in April

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

In April, Isiolo sees daytime highs around 27°C and nights near 17°C. Worth packing: light clothes, rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

UV index in Isiolo in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 15 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Isiolo peaks around March 17 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 17UV 16Jun 19UV 11
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun10Extreme
Jul11Extreme
Aug12Extreme
Sep13Extreme
Oct14Extreme
Nov13Extreme
Dec12Extreme

Air quality in Isiolo in April

GoodModeratePoorUnhealthyVery unhealthy

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

Air quality in Isiolo is worst in February — around 32 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (September, 19 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateFeb 1832 µg/m³Sep 1819 µg/m³
PM2.5 (µg/m³)Level
Jan30Moderate
Feb32Moderate
Mar31Moderate
Apr28Moderate
May25Moderate
Jun28Moderate
Jul27Moderate
Aug21Moderate
Sep19Moderate
Oct20Moderate
Nov29Moderate
Dec32Moderate
Location & terrain

Where is Isiolo?

Isiolo sits at 0.4°N, 37.6°E, 1,095 m above sea level, in Kenya. The nearest listed city is Meru, 35 km away.

NanyukiChukaEmbuKerugoyaGarba TulaKaratina

Topography around Isiolo

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

Within 3 km, the terrain around Isiolo has only modest variations in elevation — a maximum elevation change of 146 m around an average of 1,107 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 833 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,636 m.

The land around Isiolo is covered by grassland (39%), artificial surfaces (25%) and shrubs (24%) within 3 km, grassland (42%) and shrubs (39%) within 16 km, and shrubs (40%) and grassland (36%) within 80 km.

3 km
146 m
16 km
833 m
80 km
4,636 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
April weather nearby: Meru 35 km · Maua 42 km · Nanyuki 69 km · Chuka 77 km · Embu 100 km · Kerugoya 101 km · Garba Tula 106 km · Karatina 106 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 Isiolo (0.3546°, 37.5822°, elevation 1,095 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).