Isiolo weather in July

In July, Isiolo sees average daytime highs of 24°C and overnight lows near 15°C, with 38 mm of rain across 7.8 wet days and about 12 hours of daylight. It is the 12th-warmest and 9th-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 24% of the time in July, and the air most often feels dry.

Daylight stretches from about 12 hours at the start of July to 12 hours by month's end. Set against the rest of the year, July is Isiolo's 11th-clearest and 6th-windiest month. For the whole year in context, see Isiolo's year-round climate.

Daytime high
24°
12th warmest
Overnight low
15°
5th coldest
Rainfall
38 mm
7.8 wet days
Daylight
12 hours
6:35 AM – 6:36 PM
Cloud cover
61%
11th clearest
Wind
8 km/h
6th windiest
Solar energy
5.46 kWh/m²
Travel score
7.3
out of 10

Isiolo is city.

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

Temperature in July

Average highAverage lowShaded bands: 10–90% of days

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

A typical July day in Isiolo reaches about 24°C in the afternoon and slips back to 15°C overnight — a 9°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, July runs about 1°C cooler than June and on par with August.

10°15°20°25°30°151015202531
Avg high (°C)Avg low (°C)
12515
22515
32515
42415
52415
62415
72415
82415
92415
102415
112415
122415
132415
142415
152415
162415
172415
182415
192415
202415
212415
222415
232415
242415
252415
262415
272415
282415
292415
302415
312415

Isiolo weather by month

How July compares with the rest of the year at a glance. July is the 12th-warmest and 9th-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 July

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 24% of the time in July.

Beyond those clear spells, partly cloudy skies cover about 24% of July, with mostly cloudy or overcast conditions the remaining 52%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202531
Clearer (%)Cloudier (%)
15248
25248
35248
45248
55050
65050
74951
85050
95050
104951
115050
125050
134951
144951
154951
165050
174852
184951
194852
204753
214852
224753
234753
244654
254555
264555
274456
284555
294555
304555
314555

Chance of precipitation in July

Any precipitation

Isiolo gets around 38 mm of rain over 7.8 wet days in July. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 24% and peaks near 29% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202531
Rain chance (%)
118
218
318
419
519
619
720
820
920
1020
1120
1221
1321
1422
1522
1623
1724
1824
1925
2026
2127
2228
2328
2429
2529
2629
2729
2829
2929
3029
3129

Humidity in July

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, July lands in the dry band about 74% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202531
Dry (%)Comfortable (%)Humid (%)
171290
271290
372280
473270
573270
674260
774260
875250
976240
1076240
1177230
1277230
1377230
1477230
1577230
1676240
1776240
1875250
1975250
2074260
2173270
2273270
2372280
2472280
2572280
2672280
2773270
2872271
2973261
3074251
3174251

Wind in July

Winds average 8 km/h in July.

Across July, 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.

051015151015202531
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
318calm

Sunrise & sunset in July

DaylightNight

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

Days grow by about 0 minutes over July. Sunrise moves from 6:32 AM to 6:35 AM, and sunset from 6:34 PM to 6:36 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202531
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:326:34
212.06:336:34
312.06:336:34
412.06:336:34
512.06:336:34
612.06:336:35
712.06:336:35
812.06:346:35
912.06:346:35
1012.06:346:35
1112.06:346:35
1212.06:346:35
1312.06:346:36
1412.06:356:36
1512.06:356:36
1612.06:356:36
1712.06:356:36
1812.06:356:36
1912.06:356:36
2012.06:356:36
2112.06:356:36
2212.06:356:36
2312.06:356:36
2412.06:356:36
2512.06:356:36
2612.06:356:36
2712.06:356:36
2812.06:356:36
2912.06:356:36
3012.06:356:36
3112.06:356:36

Solar energy in July

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in July, about 5.46 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 — July's 5.46 kWh/m² sits near the bottom.

0246151015202531
Solar energy (kWh/m²)Level
15.6Bright
25.6Bright
35.6Bright
45.6Bright
55.6Bright
65.6Bright
75.6Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.4Bright
195.4Bright
205.4Bright
215.4Bright
225.4Bright
235.4Bright
245.4Bright
255.4Bright
265.4Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
315.5Bright
Planning a trip in July

Is July a good time to visit Isiolo?

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

7.3
Sightseeing
4th-best month of the year
6.3
Beach & pool
8th-best month of the year

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

What to pack for Isiolo in July

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

In July, Isiolo sees daytime highs around 24°C and nights near 15°C. Worth packing: light clothes and sun protection. About 8 days see rain.

light clothessun protection

UV index in Isiolo in July

LowModerateHighVery highExtreme

Clear-sky midday UV in July 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 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 July

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where July 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
July 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).