Climate and average weather in Ongata Rongai

In Ongata Rongai, the weather is hot, wet, and mostly clear and remarkably steady, with daytime highs holding near hot levels all year. The wettest stretch peaks around April.

Best: mid May to late October

Over the course of the year, the temperature in Ongata Rongai typically varies from 14°C to 28°C, and is rarely below 12°C or above 31°C. February is the hottest month of the year, while July is the coldest.

Based on the travel score, the best times of year to visit Ongata Rongai for warm-weather activities are from early January to late March and mid May to late October.

Hottest
Feb
28°
Coldest
Jul
14°
Wettest
Apr
100 mm
Driest
Jul
11 mm
Rain / yr
508 mm
97 wet days
Daylight
11.9–12.1 h
shortest–longest
Elevation
1,731 m
1.4°S
Clearest
Feb
49% cloud

Ongata Rongai weather by month, at a glance

The whole year in one picture — sky, rain, humidity, temperature and travel score. Click any band to jump to its full chart.

Each stripe is one measure across the whole year, stacked so a single day reads top to bottom. The sky band runs overcast grey on top down to clear blue at the base — more blue means sunnier — followed by the rainfall curve, the humidity band, a temperature strip that tints each stretch of the year by how warm its average high is, and the travel-score line at the foot. Scan straight down any date to read that day across every measure at once; the score climbs highest around mid May to late October.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

Daily average highs and lows in Ongata Rongai, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in Ongata Rongai stay fairly even through the year, without a distinct hot or cool season. The warmest month is February, with an average high of 28°C and low of 16°C; the coolest is July, with an average low of 14°C and high of 23°C.

Days typically run about 10°C warmer than nights, with the widest day–night swing (around 12°C) in February.

10°15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2716
Feb2816
Mar2817
Apr2617
May2516
Jun2415
Jul2314
Aug2414
Sep2614
Oct2616
Nov2516
Dec2616

Average hourly temperature in Ongata Rongai

A compact picture of the whole year, hour by hour: each column is a day, each row an hour, and the color is the modeled average temperature. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

Read left to right for the day of the year and top to bottom for the hour of the day; the color is the modeled temperature, cool blues through to hot reds on the same scale as the other charts. A vertical slice is a single day's swing — coolest just before dawn, warmest in the mid-afternoon — while a horizontal slice follows one hour across the seasons. The darker overlay marks night and the lighter one the twilight around sunrise and sunset. Colors run warmest on February afternoons, near 28°C, and coldest before dawn in July, near 14°C.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM

Ongata Rongai weather by month

Every month at a glance. Click a month for its detailed page.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 16°315.612.17.3
Feb28° / 16°234.4126.9
Mar28° / 17°499.4126.3
Apr26° / 17°10016.1125.6
May25° / 16°8214.711.96.1
Jun24° / 15°346.411.97.0
Jul23° / 14°112.611.97.4
Aug24° / 14°153.1127.5
Sep26° / 14°122.2127.7
Oct26° / 16°316.9127.0
Nov25° / 16°7515.812.15.8
Dec26° / 16°459.412.16.9

Chance of rain

How likely it is to rain on a typical day, and how that shifts across the wetter and drier seasons.

Ongata Rongai gets about 508 mm of precipitation a year. On a typical day the chance of rain is some rain, but that rises and falls sharply with the seasons.

The wetter season lasts 2.8 months, from around Mar 15 to Jun 7, peaking in May at about 63% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 13.

April is the wettest month by volume, with 100 mm over about 16 wet days; July is the driest, with 11 mm.

0%10%20%30%40%50%60%70%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetMay 1 · 63%Jul 13 · 7%
Rain on a day (%)Rain days
Jan186
Feb174
Mar299
Apr5416
May4615
Jun216
Jul93
Aug103
Sep82
Oct237
Nov5116
Dec319

Monthly rainfall

Over a full year, Ongata Rongai collects about 508 mm of rain across 97 wet days — roughly 42 mm in an average month.

It doesn’t fall evenly. April is the wettest month with 100 mm, while July is the driest at just 11 mm. The three wettest months alone bring about 51% of the year’s total.

0255075100125JanFebMarAprMayJunJulAugSepOctNovDec3123491008234111512317545
Rainfall (mm)Rain days
Jan316
Feb234
Mar499
Apr10016
May8215
Jun346
Jul113
Aug153
Sep122
Oct317
Nov7516
Dec459

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

How often the daytime sky is clear, partly cloudy or overcast.

In Ongata Rongai, the average share of the sky covered by clouds shows significant seasonal variation over the course of the year.

The clearer part of the year begins around November 23 and lasts for 4.8 months, ending around April 17. The clearest month is January, when the sky is clear, mostly clear, or partly cloudy 63% of the time on average.

The cloudier part of the year begins around April 18 and lasts for 4.9 months, ending around September 12. The cloudiest month is July, when it is overcast or mostly cloudy 87% of the time.

0%100%10%90%20%80%30%70%40%60%50%50%60%40%70%30%80%20%90%10%100%0%JanFebMarAprMayJunJulAugSepOctNovDecFeb 28 · 64%Jun 28 · 12%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan6337
Feb6238
Mar6139
Apr4258
May3664
Jun1981
Jul1387
Aug1882
Sep4258
Oct4456
Nov4060
Dec5842

Daylight, sunrise and sunset

DaylightNight

Hours of daylight through the year, with sunrise and sunset times.

The gold band is daylight — sunrise runs along its lower edge, sunset along the upper — so it widens toward summer and pinches toward winter, with night the dark area above and below. Close to the equator, Ongata Rongai barely changes through the year: days stay near 12 h 06 min of light in every season.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.16:406:44
Feb12.06:466:49
Mar12.06:426:43
Apr12.06:346:32
May11.96:316:27
Jun11.96:366:31
Jul11.96:416:36
Aug12.06:386:36
Sep12.06:276:27
Oct12.06:176:19
Nov12.16:166:20
Dec12.16:276:32

Sunny days

How many genuinely sunny days each month brings — days the sky stays clear or mostly clear — banded into plain-language zones.

Ongata Rongai averages about 6 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 1 and 14 days.

The sunnier stretch runs 4.2 months, from around Dec 4 to Apr 9. The sunniest month is March, with roughly 12 sunny days (mixed).

The greyest month is June, down near 1 sunny days — about 88% fewer than the March peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedbrightMar 114 daysJun 251 days
Sunny daysSky
Jan13Mixed
Feb12Mixed
Mar12Mixed
Apr5Gloomy
May3Gloomy
Jun1Gloomy
Jul1Gloomy
Aug2Gloomy
Sep6Gloomy
Oct6Gloomy
Nov4Gloomy
Dec9Mixed

Humidity comfort

DryComfortableHumidMuggyOppressiveMiserable

Share of days at each humidity comfort level, based on the dew point — the measure that tracks how muggy it actually feels.

Humidity comfort is graded by the dew point — the temperature at which the air would be fully saturated — because it tracks how muggy it actually feels far better than relative humidity does. A low dew point feels dry and crisp; a high one feels sticky and oppressive no matter the reading on a humidity gauge.

In Ongata Rongai, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 2.6 months, from around March 16 to June 3. The muggiest month is May, when the air feels humid, muggy or worse about 33% of the time.

The most comfortable stretch runs from around June 4 to October 31, and July is the most comfortable month — the air is dry or comfortable 100% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 15 · 100%May 1 · 48%humiddrycomfortablehumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)
Jan444214
Feb57349
Mar354817
Apr75142
May115633
Jun43517
Jul82180
Aug86140
Sep84160
Oct56395
Nov126424
Dec196318

Wind

Average wind speed through the year, banded into plain-language speed zones so a number reads as 'breezy' or 'calm' without knowing the scale.

This is the average sustained wind speed at the standard 10 metres above open ground — the steady flow a weather station reports, not the sharper gusts that come and go, which can run half again as fast. It's the number that says whether a place is generally breezy or calm.

Across the year, average wind speed in Ongata Rongai is typically calm, near 9 km/h, and varies little with the seasons.

The windier part of the year lasts 6.7 months, from around Sep 16 to Apr 7. The windiest month is January, averaging about 11 km/h (calm).

The calmer part of the year runs from around Apr 8 to Sep 15, with June the calmest month at about 7 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezeJan 30 · 11 km/hJun 14 · 6 km/h
Wind speed (km/h)Feels
Jan11calm
Feb11calm
Mar11calm
Apr9calm
May7calm
Jun7calm
Jul7calm
Aug8calm
Sep9calm
Oct10calm
Nov10calm
Dec11calm

Hazard calendar for Ongata Rongai

In seasonPeak

When the seasonal hazards worth planning around — the rainy season, tropical-cyclone risk and dust haze — are active through the year.

Ongata Rongai'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

Best time to visit Ongata Rongai

TravelBeach/poolTemperatureCloudsPrecipitation

To characterize how pleasant the weather is in Ongata Rongai throughout the year, we compute two travel scores — one for general sightseeing, one for beach and pool weather.

Around late May, Ongata Rongai is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.

Inferred from the travel-score curve; month-by-month visitor numbers are a planned addition.

The travel score favors clear, rainless days with daytime highs between 18°C and 28°C. Based on this score, the best times of year to visit Ongata Rongai for general outdoor tourist activities run from mid May to late October and again from early December to late March, with a peak score in the third week of September.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebest timetravel scoretemperaturecloudsprecipitationSep 15 · 7.8

The travel score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

Travel score (0–10)Rating
Jan7.3good
Feb6.9good
Mar6.3good
Apr5.6good
May6.1good
Jun7.0good
Jul7.4good
Aug7.5ideal
Sep7.7ideal
Oct6.9good
Nov5.9good
Dec6.9good

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best times of year to visit Ongata Rongai for hot-weather activities run from mid August to late October and again from mid December to late March, with a peak score in the last week of February.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationFeb 25 · 7.8

The beach/pool score (filled area), and its constituents: the temperature score (red line), the cloud cover score (blue line), and the precipitation score (green line).

What to pack for Ongata Rongai, by month

EssentialRecommendedOptional

Month by month, what's worth putting in the bag — from the temperature range, rain chance, sun and wind. Tap a month for a quick packing note.

Ongata Rongai packs about the same all year — highs hold near 28°C. Across the year the things worth having are light clothes and sun protection.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In February, Ongata Rongai sees daytime highs around 28°C and nights near 16°C. Pack light clothes and sun protection. About 4 days see rain.

UV index (midday) in Ongata Rongai by month

LowModerateHighVery highExtreme

Clear-sky midday UV index through the year, shaded by the WHO exposure levels — how much sun protection each month calls for.

Under clear skies, the midday UV index in Ongata Rongai 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

Average hourly UV index in Ongata Rongai

LowModerateHighVery highExtreme

Modeled clear-sky UV for every hour of every day — when in the day sun protection actually matters.

The whole year hour by hour: each column is a day, each row an hour, and the color is the modeled clear-sky UV index — the midday peak scaled down as the sun sits lower in the sky. Darker overlays mark night, lighter ones the civil-twilight hours around sunrise and sunset.

UV falls off far faster than brightness as the sun drops, so even in March the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 7 hours reach 6 or more. Mornings and late afternoons stay comparatively gentle year round.

JanFebMarAprMayJunJulAugSepOctNovDec12 AM2 AM4 AM6 AM8 AM10 AM12 PM2 PM4 PM6 PM8 PM10 PM12 AM
UV ≥ 3 (h/day)UV ≥ 6 (h/day)
Jan8.56.5
Feb8.57
Mar8.57
Apr8.56.5
May86
Jun7.55
Jul7.55.5
Aug7.56
Sep86.5
Oct86.5
Nov86.5
Dec86.5

Air quality in Ongata Rongai by month

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see which months the air is worst, not just the yearly average.

Air quality in Ongata Rongai 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
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Ongata Rongai is frost-free year round — even the coldest nights rarely reach freezing, so there is no start or end to the growing season.

0%25%50%75%100%JanFebMarAprMayJunJulAugSepOctNovDecfrost-free year round
Frost-free chance (%)Frost nights
Jan1000
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec1000

Growing degree days

Degree days (base 10°C)Frost-free shaded

Growing degree days tally heat above 10°C: each day adds however many degrees its average temperature runs over that threshold, and cold days add nothing. Ongata Rongai banks about 3,822 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around March.

01,0002,0003,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan351
Feb339
Mar383
Apr344
May316
Jun271
Jul258
Aug272
Sep299
Oct342
Nov317
Dec330

Solar energy

Average daily shortwave solar energy reaching the ground, banded into brightness zones so the number means something at a glance.

Solar energy is how much sunlight actually reaches the ground each day, measured in kilowatt-hours per square metre (kWh/m²) — the combined effect of how long the sun is up, how high it climbs, and how much cloud gets in the way. It's the raw fuel a solar panel has to work with: for scale, 1 kWh/m² a day is dim and wintry, while 7+ is desert-bright.

Ongata Rongai receives about 5.6 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.4 and 6.7 kWh/m².

The brighter stretch of the year lasts 4.3 months, from around Dec 7 to Apr 15. The brightest month is February, averaging about 6.7 kWh/m² (intense).

The dimmest month is July, down near 4.4 kWh/m² — roughly 35% less than the February peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseFeb 236.7 kWhJul 174.4 kWh
Solar energy (kWh/m²)Level
Jan6.4Intense
Feb6.8Intense
Mar6.4Intense
Apr5.6Bright
May5.1Bright
Jun4.5Bright
Jul4.4Bright
Aug4.7Bright
Sep5.8Bright
Oct6.1Intense
Nov5.4Bright
Dec5.8Bright

Where is Ongata Rongai?

Ongata Rongai sits at 1.4°S, 36.8°E, 1,731 m above sea level, in Kenya. The nearest listed city is Lang'ata, 5.0 km away.

Topography around Ongata Rongai

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

Within 3 km, the terrain around Ongata Rongai has only modest variations in elevation — a maximum elevation change of 125 m around an average of 1,734 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 914 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,909 m.

The land around Ongata Rongai is covered by artificial surfaces (27%), trees (23%) and shrubs (22%) within 3 km, grassland (47%) and trees (20%) within 16 km, and grassland (39%) and shrubs (35%) within 80 km.

3 km
125 m
16 km
914 m
80 km
2,909 m
treesshrubsgrasslandcroplandartificial surfaceswater
Nearby: Lang'ata 5.0 km · Kiserian 9.0 km · Ngong 11 km · Nairobi 14 km · Imara Daima Estate 15 km · Pumwani 16 km · Mlolongo 20 km · Kikuyu 20 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 Ongata Rongai (-1.3953°, 36.764°, elevation 1,731 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).