Climate and average weather in Kirundo

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

Best: mid May to mid September

Over the course of the year, the temperature in Kirundo typically varies from 16°C to 28°C, and is rarely below 14°C or above 30°C. August is the hottest month of the year, while April is the coldest.

Based on the travel score, the best time of year to visit Kirundo for warm-weather activities is from mid May to mid September.

Hottest
Aug
28°
Coldest
Apr
17°
Wettest
Apr
172 mm
Driest
Jul
4 mm
Rain / yr
1018 mm
172 wet days
Daylight
11.9–12.1 h
shortest–longest
Elevation
1,403 m
2.6°S
Clearest
Jul
63% cloud

Kirundo is place in Kirundo Province, Burundi.

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

Kirundo 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 mid September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Kirundo stay fairly even through the year, without a distinct hot or cool season. The warmest month is August, with an average high of 28°C and low of 17°C; the coolest is April, with an average low of 17°C and high of 25°C.

Days typically run about 10°C warmer than nights year-round.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2617
Feb2717
Mar2617
Apr2517
May2517
Jun2616
Jul2716
Aug2817
Sep2817
Oct2617
Nov2516
Dec2616

Average hourly temperature in Kirundo

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 August afternoons, near 28°C, and coldest before dawn in April, near 17°C.

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

Kirundo 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
Jan26° / 17°8216.312.15.4
Feb27° / 17°7615.612.15.3
Mar26° / 17°12522.1124.7
Apr25° / 17°17224.411.94.3
May25° / 17°8713.811.96.0
Jun26° / 16°132.711.97.5
Jul27° / 16°40.711.97.7
Aug28° / 17°213.411.97.1
Sep28° / 17°539.5126.2
Oct26° / 17°1281912.15.1
Nov25° / 16°14923.712.14.4
Dec26° / 16°10820.712.15.0

Chance of rain

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

Kirundo gets about 1018 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 7.4 months, from around Oct 3 to May 14, peaking in April at about 83% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 10.

April is the wettest month by volume, with 172 mm over about 24 wet days; July is the driest, with 4 mm.

0%10%20%30%40%50%60%70%80%90%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetApr 12 · 83%Jul 10 · 2%
Rain on a day (%)Rain days
Jan5416
Feb5516
Mar7022
Apr8124
May4414
Jun93
Jul31
Aug123
Sep3210
Oct6019
Nov7824
Dec6621

Monthly rainfall

Over a full year, Kirundo collects about 1018 mm of rain across 172 wet days — roughly 85 mm in an average month.

It doesn’t fall evenly. April is the wettest month with 172 mm, while July is the driest at just 4 mm. The three wettest months alone bring about 44% of the year’s total.

0255075100125150175200JanFebMarAprMayJunJulAugSepOctNovDec8276125172871342153128149108
Rainfall (mm)Rain days
Jan8216
Feb7616
Mar12522
Apr17224
May8714
Jun133
Jul41
Aug213
Sep5310
Oct12819
Nov14924
Dec10821

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Kirundo, 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 10 and lasts for 4.9 months, ending around October 5. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 38% of the time on average.

The cloudier part of the year begins around October 6 and lasts for 3.8 months, ending around January 29. The cloudiest month is November, when it is overcast or mostly cloudy 89% 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 2 · 43%Nov 13 · 9%mostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan2476
Feb2674
Mar2278
Apr1486
May3268
Jun3862
Jul3862
Aug3565
Sep3565
Oct1981
Nov1189
Dec2179

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, Kirundo 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)
Jan12.16:056:13
Feb12.16:126:17
Mar12.06:096:10
Apr11.96:025:58
May11.95:595:52
Jun11.96:045:55
Jul11.96:096:01
Aug11.96:066:01
Sep12.05:545:54
Oct12.15:435:46
Nov12.15:415:48
Dec12.15:516:00

Sunny days

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

Kirundo averages about 3 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 1 and 6 days.

The sunnier stretch runs 4.6 months, from around May 16 to Oct 3. The sunniest month is July, with roughly 5 sunny days (gloomy).

The greyest month is April, down near 1 sunny days — about 80% fewer than the July peak.

0510JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedJul 96 daysApr 221 days
Sunny daysSky
Jan2Gloomy
Feb3Gloomy
Mar2Gloomy
Apr1Gloomy
May3Gloomy
Jun4Gloomy
Jul5Gloomy
Aug5Gloomy
Sep3Gloomy
Oct2Gloomy
Nov1Gloomy
Dec1Gloomy

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

The more humid part of the year lasts 7.1 months, from around October 15 to May 19. The muggiest month is April, when the air feels humid, muggy or worse about 93% of the time.

The most comfortable stretch runs from around May 20 to October 14, and July is the most comfortable month — the air is dry or comfortable 99% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 12 · 100%Apr 6 · 6%humidcomfortabledryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan028720
Feb229691
Mar015832
Apr07912
May435601
Jun4147120
Jul851410
Aug682660
Sep3047230
Oct637570
Nov013870
Dec018820

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

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmSep 20 · 7 km/hApr 3 · 5 km/h
Wind speed (km/h)Feels
Jan5calm
Feb5calm
Mar5calm
Apr5calm
May6calm
Jun6calm
Jul6calm
Aug6calm
Sep6calm
Oct6calm
Nov5calm
Dec5calm

Best time to visit Kirundo

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around early September, Kirundo 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 time of year to visit Kirundo for general outdoor tourist activities is from mid May to mid September, with a peak score in the second week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 8 · 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
Jan5.4fair
Feb5.3fair
Mar4.7fair
Apr4.3fair
May6.0good
Jun7.5ideal
Jul7.7ideal
Aug7.1good
Sep6.2good
Oct5.1fair
Nov4.4fair
Dec5.0fair

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best time of year to visit Kirundo for hot-weather activities is from late May to late September, with a peak score in the second week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 13 · 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 Kirundo, 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.

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

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In August, Kirundo sees daytime highs around 28°C and nights near 17°C. Pack light clothes. Worth having: sun protection. About 3 days see rain.

UV index (midday) in Kirundo 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 Kirundo peaks around March 17 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 19 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 17UV 16Jun 19UV 10
UV index (midday)Level
Jan11Extreme
Feb15Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun10Extreme
Jul11Extreme
Aug11Extreme
Sep14Extreme
Oct14Extreme
Nov13Extreme
Dec12Extreme

Average hourly UV index in Kirundo

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)
Jan7.55.5
Feb8.56.5
Mar8.56.5
Apr8.56.5
May86
Jun7.55.5
Jul7.55.5
Aug7.55.5
Sep86
Oct8.56.5
Nov86
Dec86

Air quality in Kirundo 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 Kirundo is worst in January — around 82 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyJan 1981 µg/m³May 966 µg/m³
PM2.5 (µg/m³)Level
Jan82Unhealthy
Feb80Unhealthy
Mar73Unhealthy
Apr66Unhealthy
May66Unhealthy
Jun75Unhealthy
Jul67Unhealthy
Aug72Unhealthy
Sep72Unhealthy
Oct68Unhealthy
Nov72Unhealthy
Dec77Unhealthy
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Kirundo 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. Kirundo banks about 4,169 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around September.

01,0002,0003,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan352
Feb328
Mar353
Apr328
May339
Jun332
Jul356
Aug385
Sep374
Oct359
Nov325
Dec338

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.

Kirundo receives about 5.4 kWh/m² a day of solar energy — bright — and it stays remarkably steady, holding between 4.8 and 5.9 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightintenseFeb 255.9 kWhMay 14.8 kWh
Solar energy (kWh/m²)Level
Jan5.7Bright
Feb5.9Bright
Mar5.7Bright
Apr5.0Bright
May5.0Bright
Jun5.0Bright
Jul5.2Bright
Aug5.4Bright
Sep5.7Bright
Oct5.5Bright
Nov5.1Bright
Dec5.3Bright

Where is Kirundo?

Kirundo sits at 2.6°S, 30.1°E, 1,403 m above sea level, in Burundi. The nearest listed city is Butare, 40 km away.

ButareKabangaNyamataNyanzaNgoziRuhangoBugarama

Topography around Kirundo

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

Within 3 km, the terrain around Kirundo has only modest variations in elevation — a maximum elevation change of 239 m around an average of 1,434 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 533 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,441 m.

The land around Kirundo is covered by trees (46%) within 3 km, trees (35%) and cropland (25%) within 16 km, and cropland (37%), grassland (27%) and trees (21%) within 80 km.

3 km
239 m
16 km
533 m
80 km
1,441 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
Nearby: Butare 40 km · Kabanga 42 km · Nyamata 43 km · Nyanza 46 km · Ngozi 46 km · Ruhango 52 km · Mugina 56 km · Bugarama 58 km

Burundi travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type C / E
220 V · 50 Hz
Prices
≈ 34% of US
price level, 2025
GDP per capita
$234
2025
Happiness
3.8 / 10
World Happiness, 2020
Homicide rate
5.6
per 100k, 2016
Road deaths
35.5
per 100k/yr, 2019
Income group
Low
World Bank
Religion
Christian 94%Muslim 3%other 1%none 1%

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 Kirundo (-2.5845°, 30.0959°, elevation 1,403 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).