Climate and average weather in Kigoma

In Kigoma, 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 December.

Best: late May to early September

Over the course of the year, the temperature in Kigoma typically varies from 20°C to 30°C, and is rarely below 19°C or above 32°C. September is the hottest month of the year, while December is the coldest.

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

Hottest
Sep
30°
Coldest
Dec
21°
Wettest
Dec
298 mm
Driest
Jul
1 mm
Rain / yr
1851 mm
205 wet days
Daylight
11.7–12.3 h
shortest–longest
Elevation
769 m
4.9°S
Clearest
Jul
37% cloud

Kigoma is city in Tanzania.

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

Kigoma 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 early September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Kigoma stay fairly even through the year, without a distinct hot or cool season. The warmest month is September, with an average high of 30°C and low of 22°C; the coolest is December, with an average low of 21°C and high of 26°C.

Days typically run about 6°C warmer than nights, with the widest day–night swing (around 9°C) in August.

15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2621
Feb2722
Mar2721
Apr2721
May2821
Jun2821
Jul2920
Aug3021
Sep3022
Oct2822
Nov2621
Dec2621

Average hourly temperature in Kigoma

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 September afternoons, near 30°C, and coldest before dawn in December, near 21°C.

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

Kigoma 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° / 21°2542812.33.7
Feb27° / 22°20123.812.24.0
Mar27° / 21°27127.9123.8
Apr27° / 21°26426.311.93.8
May28° / 21°10415.611.85.6
Jun28° / 21°112.211.77.1
Jul29° / 20°10.311.77.3
Aug30° / 21°61.211.86.5
Sep30° / 22°244.9125.5
Oct28° / 22°1421812.14.7
Nov26° / 21°2762712.23.7
Dec26° / 21°29829.512.33.6

Chance of rain

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

Kigoma gets about 1851 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 6.9 months, from around Oct 16 to May 12, peaking in December at about 95% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 16.

December is the wettest month by volume, with 298 mm over about 30 wet days; July is the driest, with 1 mm.

0%10%20%30%40%50%60%70%80%90%100%110%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetDec 6 · 95%Jul 16 · 1%
Rain on a day (%)Rain days
Jan9128
Feb8524
Mar9028
Apr8826
May5016
Jun82
Jul10
Aug41
Sep185
Oct5718
Nov8927
Dec9530

Monthly rainfall

Over a full year, Kigoma collects about 1851 mm of rain across 205 wet days — roughly 154 mm in an average month.

It doesn’t fall evenly. December is the wettest month with 298 mm, while July is the driest at just 1 mm. The three wettest months alone bring about 46% of the year’s total.

050100150200250300350JanFebMarAprMayJunJulAugSepOctNovDec254201271264104111624142276298
Rainfall (mm)Rain days
Jan25428
Feb20124
Mar27128
Apr26426
May10416
Jun112
Jul10
Aug61
Sep245
Oct14218
Nov27627
Dec29830

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Kigoma, 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 8 and lasts for 5.0 months, ending around October 5. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 75% of the time on average.

The cloudier part of the year begins around October 6 and lasts for 7.0 months, ending around May 7. The cloudiest month is November, when it is overcast or mostly cloudy 91% 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%JanFebMarAprMayJunJulAugSepOctNovDecAug 16 · 76%Nov 29 · 7%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan1288
Feb1684
Mar1684
Apr1981
May4753
Jun6832
Jul7426
Aug7525
Sep6040
Oct2575
Nov991
Dec1189

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, Kigoma barely changes through the year: days stay near 12 h 18 min of light in every season.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.37:037:18
Feb12.27:117:21
Mar12.07:107:12
Apr11.97:056:59
May11.87:046:51
Jun11.77:106:53
Jul11.77:156:59
Aug11.87:107:01
Sep12.06:576:55
Oct12.16:436:50
Nov12.26:406:54
Dec12.36:497:06

Sunny days

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

Kigoma averages about 7 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 18 days.

The sunnier stretch runs 4.9 months, from around May 10 to Oct 4. The sunniest month is July, with roughly 18 sunny days (bright).

The greyest month is December, down near 1 sunny days — about 97% fewer than the July peak.

0510152025JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantJul 1218 daysDec 60 days
Sunny daysSky
Jan1Gloomy
Feb2Gloomy
Mar2Gloomy
Apr2Gloomy
May9Mixed
Jun14Mixed
Jul18Bright
Aug17Bright
Sep12Mixed
Oct4Gloomy
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 Kigoma, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 8.4 months, from around October 2 to June 13. The muggiest month is January, when the air feels humid, muggy or worse about 100% of the time.

The most comfortable stretch runs from around June 14 to October 1, and July is the most comfortable month — the air is dry or comfortable 54% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 18 · 58%Jan 1 · 0%oppressivehumidmuggycomfortablehumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan0008416
Feb0007525
Mar0007129
Apr0018515
May0115805
Jun01652310
Jul2514340
Aug3474280
Sep12744280
Oct0518742
Nov001927
Dec000928

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

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeSep 4 · 7 km/hJan 1 · 4 km/h
Wind speed (km/h)Feels
Jan4calm
Feb5calm
Mar5calm
Apr5calm
May5calm
Jun6calm
Jul6calm
Aug7calm
Sep7calm
Oct6calm
Nov5calm
Dec5calm

Hazard calendar for Kigoma

In seasonPeak

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

Kigoma's rainy season runs October–April, 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 Kigoma

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late August, Kigoma 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 Kigoma for general outdoor tourist activities is from late May to early September, with a peak score in the second week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 9 · 7.4

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
Jan3.7fair
Feb4.0fair
Mar3.8fair
Apr3.9fair
May5.6good
Jun7.1good
Jul7.2good
Aug6.5good
Sep5.5good
Oct4.7fair
Nov3.8fair
Dec3.6fair

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 Kigoma for hot-weather activities is from late May to late September, with a peak score in the last week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 26 · 8.9

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 Kigoma, 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.

Kigoma packs about the same all year — highs hold near 30°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 September, Kigoma sees daytime highs around 30°C and nights near 22°C. Pack light clothes and sun protection. About 5 days see rain.

UV index (midday) in Kigoma 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 Kigoma peaks around March 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 14 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 15UV 15Aug 14UV 8
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun9Very high
Jul10Very high
Aug7Very high
Sep12Extreme
Oct13Extreme
Nov12Extreme
Dec12Extreme

Average hourly UV index in Kigoma

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
Jun75
Jul74.5
Aug6.53.5
Sep86
Oct86.5
Nov86
Dec86

Air quality in Kigoma 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 Kigoma is worst in August — around 51 µg/m³ PM2.5 (poor), about 5.5× the cleanest month (April, 9 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModeratePoorModerateGoodAug 1450 µg/m³Apr 189 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb15Moderate
Mar12Good
Apr9Good
May11Good
Jun25Moderate
Jul45Poor
Aug51Poor
Sep38Poor
Oct19Moderate
Nov12Moderate
Dec11Good
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Kigoma 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. Kigoma banks about 5,251 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around September.

02,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan425
Feb396
Mar435
Apr418
May447
Jun430
Jul443
Aug472
Sep481
Oct470
Nov416
Dec418

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.

Kigoma receives about 5.6 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 5.0 and 6.5 kWh/m².

The brighter stretch of the year lasts 4.0 months, from around Jun 30 to Oct 28. The brightest month is September, averaging about 6.5 kWh/m² (intense).

The dimmest month is December, down near 5.1 kWh/m² — roughly 21% less than the September peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseSep 196.5 kWhDec 65.0 kWh
Solar energy (kWh/m²)Level
Jan5.5Bright
Feb5.7Bright
Mar5.5Bright
Apr5.1Bright
May5.3Bright
Jun5.5Bright
Jul5.8Bright
Aug6.1Intense
Sep6.5Intense
Oct6.0Bright
Nov5.2Bright
Dec5.1Bright

Where is Kigoma?

Kigoma sits at 4.9°S, 29.6°E, 769 m above sea level, in Tanzania. The nearest listed city is Mwandiga, 6.0 km away.

VyandaUvinzaRumongeKalemieNgurukaGitega

Topography around Kigoma

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

Within 3 km, the terrain around Kigoma has only modest variations in elevation — a maximum elevation change of 177 m around an average of 820 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 607 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,930 m.

The land around Kigoma is covered by artificial surfaces (38%) and water (32%) within 3 km, water (56%) within 16 km, and water (44%), grassland (24%) and trees (20%) within 80 km.

3 km
177 m
16 km
607 m
80 km
1,930 m
treesshrubsgrasslandcroplandartificial surfaceswater
Nearby: Mwandiga 6.0 km · Kasulu 62 km · Vyanda 86 km · Uvinza 88 km · Rumonge 103 km · Kalemie 128 km · Nguruka 159 km · Gitega 165 km

Tanzania travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type D / G
230 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$1,319
2025
Happiness
3.9 / 10
World Happiness, 2025
Safe drinking water
31%
of population, 2024
Homicide rate
3.7
per 100k, 2020
Road deaths
31.1
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Low
EF EPI 479
Religion
Christian 63%Muslim 34%folk religion 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 Kigoma (-4.8769°, 29.6267°, elevation 769 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).