Climate and average weather in Rongo

In Rongo, the weather is hot, wet, and partly cloudy and remarkably steady, with daytime highs holding near hot levels all year. The wettest stretch peaks around April.

Best: late May to mid September

Over the course of the year, the temperature in Rongo typically varies from 16°C to 29°C, and is rarely below 15°C or above 32°C. February is the hottest month of the year, while June is the coldest.

Based on the travel score, the best times of year to visit Rongo for warm-weather activities are from early January to early February and late May to mid September.

Hottest
Feb
29°
Coldest
Jun
17°
Wettest
Apr
223 mm
Driest
Jul
35 mm
Rain / yr
1447 mm
199 wet days
Daylight
12.0–12.0 h
shortest–longest
Elevation
1,474 m
0.8°S
Clearest
Feb
60% cloud

Rongo 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 late May to mid September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Rongo stay fairly even through the year, without a distinct hot or cool season. The warmest month is February, with an average high of 29°C and low of 17°C; the coolest is June, with an average low of 17°C and high of 27°C.

Days typically run about 11°C warmer than nights year-round.

10°15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2817
Feb2917
Mar2817
Apr2717
May2717
Jun2717
Jul2716
Aug2717
Sep2817
Oct2817
Nov2717
Dec2717

Average hourly temperature in Rongo

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 29°C, and coldest before dawn in June, near 17°C.

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

Rongo 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
Jan28° / 17°10615.7125.5
Feb29° / 17°7512.1125.2
Mar28° / 17°15318.7124.7
Apr27° / 17°22323.7124.2
May27° / 17°15120125.0
Jun27° / 17°5411.1126.2
Jul27° / 16°358126.7
Aug27° / 17°5710.9126.2
Sep28° / 17°7413.8125.4
Oct28° / 17°14319.1124.7
Nov27° / 17°21324.1124.2
Dec27° / 17°16421.5124.8

Chance of rain

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

Rongo gets about 1447 mm of precipitation a year. On a typical day the chance of rain is very wet, but that rises and falls sharply with the seasons.

The wetter season lasts 2.4 months, from around Mar 12 to May 22, peaking in April at about 81% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 12.

April is the wettest month by volume, with 223 mm over about 24 wet days; July is the driest, with 35 mm.

0%10%20%30%40%50%60%70%80%90%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetApr 24 · 81%Jul 12 · 23%
Rain on a day (%)Rain days
Jan5016
Feb4412
Mar6019
Apr7924
May6420
Jun3711
Jul268
Aug3711
Sep4614
Oct6219
Nov7924
Dec6922

Monthly rainfall

Over a full year, Rongo collects about 1447 mm of rain across 199 wet days — roughly 121 mm in an average month.

It doesn’t fall evenly. April is the wettest month with 223 mm, while July is the driest at just 35 mm. The three wettest months alone bring about 41% of the year’s total.

050100150200250JanFebMarAprMayJunJulAugSepOctNovDec1067515322315154355774143213164
Rainfall (mm)Rain days
Jan10616
Feb7512
Mar15319
Apr22324
May15120
Jun5411
Jul358
Aug5711
Sep7414
Oct14319
Nov21324
Dec16422

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Rongo, 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 May 18 and lasts for 4.3 months, ending around September 26. The clearest month is February, when the sky is clear, mostly clear, or partly cloudy 49% of the time on average.

The cloudier part of the year begins around September 27 and lasts for 2.5 months, ending around December 11. The cloudiest month is April, when it is overcast or mostly cloudy 82% 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%JanFebMarAprMayJunJulAugSepOctNovDecJun 1 · 51%Nov 6 · 15%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan4753
Feb4951
Mar3961
Apr1882
May3565
Jun4357
Jul4555
Aug4654
Sep4555
Oct2377
Nov1981
Dec3961

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, Rongo barely changes through the year: days stay near 12 hours of light in every season.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.06:506:52
Feb12.06:556:57
Mar12.06:516:51
Apr12.06:426:41
May12.06:396:37
Jun12.06:436:41
Jul12.06:486:46
Aug12.06:466:45
Sep12.06:366:36
Oct12.06:266:27
Nov12.06:266:28
Dec12.06:366:39

Sunny days

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

Rongo averages about 5 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 1 and 9 days.

The sunnier stretch runs 3.3 months, from around Dec 12 to Mar 22. The sunniest month is February, with roughly 8 sunny days (gloomy).

The greyest month is April, down near 2 sunny days — about 75% fewer than the February peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyergloomymixedFeb 19 daysApr 241 days
Sunny daysSky
Jan8Gloomy
Feb7Gloomy
Mar6Gloomy
Apr2Gloomy
May5Gloomy
Jun5Gloomy
Jul5Gloomy
Aug5Gloomy
Sep6Gloomy
Oct3Gloomy
Nov2Gloomy
Dec6Gloomy

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 Rongo, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 3.8 months, from around February 17 to June 11. The muggiest month is April, when the air feels humid, muggy or worse about 92% of the time.

The most comfortable stretch runs from around June 12 to October 18, and July is the most comfortable month — the air is dry or comfortable 77% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 16 · 79%Apr 29 · 6%muggyhumidcomfortabledryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan424693
Feb927613
Mar417727
Apr088111
May018766
Jun442530
Jul1166230
Aug1658260
Sep1651330
Oct534600
Nov013852
Dec116812

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.

Wind in Rongo is steady company: average speeds sit near 6 km/hcalm — in every month of the year, with no meaningful windy or calm season.

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmFeb 9 · 6 km/hApr 29 · 5 km/h
Wind speed (km/h)Feels
Jan6calm
Feb6calm
Mar6calm
Apr5calm
May5calm
Jun6calm
Jul6calm
Aug6calm
Sep6calm
Oct6calm
Nov5calm
Dec5calm

Best time to visit Rongo

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around early September, Rongo is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

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 Rongo for general outdoor tourist activities run from early January to early February and again from late May to mid September, with a peak score in the second week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationJul 11 · 6.8

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
Jan5.5fair
Feb5.1fair
Mar4.7fair
Apr4.2fair
May5.0fair
Jun6.2good
Jul6.7good
Aug6.1good
Sep5.4fair
Oct4.7fair
Nov4.2fair
Dec4.8fair

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 Rongo for hot-weather activities run from late May to mid October and again from late December to mid March, with a peak score in the second week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationJul 12 · 6.8

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 Rongo, 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.

Rongo packs about the same all year — highs hold near 29°C. Across the year the things worth having are light clothes, rain gear and sun protection.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In February, Rongo sees daytime highs around 29°C and nights near 17°C. Pack light clothes and sun protection. Worth having: rain gear. About 12 days see rain.

UV index (midday) in Rongo 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 Rongo peaks around March 16 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeExtremeMar 16UV 16Jun 18UV 10
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun10Very high
Jul11Extreme
Aug11Extreme
Sep13Extreme
Oct14Extreme
Nov13Extreme
Dec12Extreme

Average hourly UV index in Rongo

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 6.5 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)
Jan86.5
Feb8.56.5
Mar8.56.5
Apr86.5
May7.55.5
Jun7.55
Jul7.55.5
Aug86
Sep86
Oct86.5
Nov86
Dec86

Air quality in Rongo 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 Rongo is worst in June — around 60 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorJun 2360 µg/m³Mar 1344 µg/m³
PM2.5 (µg/m³)Level
Jan50Poor
Feb45Poor
Mar44Poor
Apr47Poor
May52Poor
Jun60Unhealthy
Jul60Unhealthy
Aug54Poor
Sep50Poor
Oct49Poor
Nov51Poor
Dec50Poor
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Rongo 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. Rongo banks about 4,421 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around February.

01,0002,0003,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan374
Feb361
Mar397
Apr366
May371
Jun349
Jul358
Aug373
Sep376
Oct386
Nov351
Dec361

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.

Rongo receives about 6.0 kWh/m² a day of solar energy — bright — and it stays remarkably steady, holding between 5.5 and 6.6 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.

012345678JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightintenseFeb 286.6 kWhJun 215.5 kWh
Solar energy (kWh/m²)Level
Jan6.3Intense
Feb6.6Intense
Mar6.5Intense
Apr5.9Bright
May5.7Bright
Jun5.5Bright
Jul5.5Bright
Aug5.8Bright
Sep6.3Intense
Oct6.1Intense
Nov5.8Bright
Dec5.9Bright

Where is Rongo?

Rongo sits at 0.8°S, 34.6°E, 1,474 m above sea level, in Kenya. The nearest listed city is Ogembo, 15 km away.

Topography around Rongo

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

Within 3 km, the terrain around Rongo has only modest variations in elevation — a maximum elevation change of 148 m around an average of 1,446 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 694 m; within 80 km, large variations in elevation — a maximum elevation change of 1,108 m.

The land around Rongo is covered by trees (50%) and shrubs (25%) within 3 km, trees (40%) and shrubs (31%) within 16 km, and grassland (26%), trees (22%) and shrubs (21%) within 80 km.

3 km
148 m
16 km
694 m
80 km
1,108 m
treesshrubsgrasslandcroplandartificial surfaceswater
Nearby: Ogembo 15 km · Thomas Magena home 17 km · Awendo 18 km · Kisii 21 km · Homa Bay 30 km · Oyugis 31 km · Awendo 36 km · Migori 37 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 Rongo (-0.7568°, 34.5983°, elevation 1,474 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).