Ol Kalou weather in April

In April, Ol Kalou sees average daytime highs of 20°C and overnight lows near 10°C, with 235 mm of rain across 20.6 wet days and about 12 hours of daylight. It is the 4th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 20°C through the month. The sky is clear or mostly clear about 6% of the time in April, and the air most often feels dry.

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 Ol Kalou's 9th-clearest and 11th-windiest month. For the whole year in context, see Ol Kalou's year-round climate.

Daytime high
20°
4th warmest
Overnight low
10°
11th coldest
Rainfall
235 mm
20.6 wet days
Daylight
12 hours
6:35 AM – 6:35 PM
Cloud cover
74%
9th clearest
Wind
6 km/h
11th windiest
Solar energy
5.76 kWh/m²
Travel score
4.6
out of 10

Ol Kalou is town in Kenya.

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 20°C through the month.

A typical April day in Ol Kalou reaches about 20°C in the afternoon and slips back to 10°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 22°C. Set against its neighbours, April runs about 2°C cooler than March and about 1°C warmer than May.

10°15°20°25°151015202530
Avg high (°C)Avg low (°C)
12110
22110
32110
42110
52110
62110
72110
82110
92110
102110
112110
122110
132010
142010
152010
162011
172011
182011
192011
202011
212011
222011
232011
242011
252011
262011
272011
282011
292011
302011

Ol Kalou weather by month

How April compares with the rest of the year at a glance. April is the 4th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan20° / 668.4126.6
Feb22° / 525.7127.1
Mar22° / 11211.8126.4
Apr20° / 10°23520.6124.6
May19° / 11°18118.4124.9
Jun18° / 10°13917.5124.8
Jul17° / 16422.1124.0
Aug18° / 19022.8123.9
Sep19° / 13816.8125.1
Oct19° / 20620124.6
Nov19° / 10°21123.4124.1
Dec19° / 9513.4125.6

Cloud cover in April

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 6% of the time in April.

Beyond those clear spells, partly cloudy skies cover about 21% of April, with mostly cloudy or overcast conditions the remaining 73%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13565
23466
33466
43466
53367
63268
73268
83268
93268
103070
113070
123070
132971
142971
152872
162773
172674
182674
192575
202476
212377
222278
232278
242179
252179
262179
272179
282179
292278
302278

Chance of precipitation in April

Any precipitation

Ol Kalou gets around 235 mm of rain over 20.6 wet days in April, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 68% and peaks near 77% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
156
257
358
458
559
660
760
861
962
1063
1164
1265
1366
1467
1569
1670
1771
1872
1973
2074
2175
2275
2376
2476
2577
2677
2777
2877
2977
3076

Humidity in April

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, April lands in the dry band about 98% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
1991
2991
3991
4991
5991
6991
7991
8991
9982
10982
11982
12982
13982
14982
15982
16982
17982
18982
19982
20982
21982
22973
23973
24973
25973
26964
27964
28964
29964
30964

Wind in April

Winds average 6 km/h in April.

Across April, daily wind ranges from about 6 km/h on the calmest days to 7 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
297calm
307calm

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 6:39 AM to 6:32 AM, and sunset from 6:39 PM to 6:32 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:396:39
212.06:396:39
312.06:396:38
412.06:386:38
512.06:386:38
612.06:386:37
712.06:376:37
812.06:376:37
912.06:376:37
1012.06:366:36
1112.06:366:36
1212.06:366:36
1312.06:366:35
1412.06:356:35
1512.06:356:35
1612.06:356:35
1712.06:356:34
1812.06:346:34
1912.06:346:34
2012.06:346:34
2112.06:346:33
2212.06:336:33
2312.06:336:33
2412.06:336:33
2512.06:336:32
2612.06:336:32
2712.06:336:32
2812.06:326:32
2912.06:326:32
3012.06:326:32

Solar energy in April

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in April, about 5.76 kWh/m².

For context, solar energy here swings from a low near 4.81 kWh/m² to a high of 6.95 kWh/m² in February across the year — April's 5.76 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.2Intense
26.2Intense
36.2Intense
46.1Intense
56.1Intense
66.1Intense
76.0Intense
86.0Intense
96.0Bright
106.0Bright
115.9Bright
125.9Bright
135.9Bright
145.8Bright
155.8Bright
165.8Bright
175.7Bright
185.7Bright
195.7Bright
205.6Bright
215.6Bright
225.6Bright
235.5Bright
245.5Bright
255.5Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
Planning a trip in April

Is April a good time to visit Ol Kalou?

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

4.6
Sightseeing
8th-best month of the year
2.6
Beach & pool
4th-best month of the year

April is a reasonable time to visit Ol Kalou for sightseeing.

What to pack for Ol Kalou in April

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

In April, Ol Kalou sees daytime highs around 20°C and nights near 10°C. Pack rain gear. Worth having: sun protection. About 21 days see rain.

rain gearsun protection

UV index in Ol Kalou in April

LowModerateHighVery highExtreme

Clear-sky midday UV in April peaks around 16 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ol Kalou peaks around March 16 at about 17 (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 16UV 17Jun 19UV 11
UV index (midday)Level
Jan16Extreme
Feb16Extreme
Mar17Extreme
Apr16Extreme
May13Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep14Extreme
Oct15Extreme
Nov14Extreme
Dec13Extreme

Air quality in Ol Kalou 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 Ol Kalou is worst in June — around 34 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 2334 µg/m³Oct 1224 µg/m³
PM2.5 (µg/m³)Level
Jan27Moderate
Feb31Moderate
Mar28Moderate
Apr27Moderate
May28Moderate
Jun34Moderate
Jul34Moderate
Aug28Moderate
Sep25Moderate
Oct24Moderate
Nov27Moderate
Dec28Moderate
Location & terrain

Where is Ol Kalou?

Ol Kalou sits at 0.3°S, 36.4°E, 2,348 m above sea level, in Kenya. The nearest listed city is Upper Gilgil, 14 km away.

Topography around Ol Kalou

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

Within 3 km, the terrain around Ol Kalou has only modest variations in elevation — a maximum elevation change of 197 m around an average of 2,380 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 803 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,992 m.

The land around Ol Kalou is covered by cropland (51%) and grassland (23%) within 3 km, cropland (40%) and grassland (31%) within 16 km, and grassland (33%), trees (24%) and cropland (23%) within 80 km.

3 km
197 m
16 km
803 m
80 km
2,992 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
April weather nearby: Upper Gilgil 14 km · Gilgil 27 km · Mairo Inya 33 km · Nakuru 34 km · Nyahururu 34 km · Njoro 49 km · Naivasha 50 km · Rongai 58 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 Ol Kalou (-0.2709°, 36.3792°, elevation 2,348 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).