Climate and average weather in Kilosa

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

Best: mid May to late September

Over the course of the year, the temperature in Kilosa typically varies from 15°C to 31°C, and is rarely below 13°C or above 34°C. December is the hottest month of the year, while July is the coldest.

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

Hottest
Dec
31°
Coldest
Jul
15°
Wettest
Mar
153 mm
Driest
Jul
8 mm
Rain / yr
842 mm
131 wet days
Daylight
11.6–12.4 h
shortest–longest
Elevation
495 m
6.8°S
Clearest
Oct
49% cloud

Kilosa is city in Morogoro Region, Tanzania.

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

Kilosa 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 September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Kilosa stay fairly even through the year, without a distinct hot or cool season. The warmest month is December, with an average high of 31°C and low of 21°C; the coolest is July, with an average low of 15°C and high of 26°C.

Days typically run about 10°C warmer than nights, with the widest day–night swing (around 11°C) in September.

10°15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan3121
Feb3021
Mar2921
Apr2720
May2618
Jun2616
Jul2615
Aug2616
Sep2817
Oct3018
Nov3020
Dec3121

How hot and cold Kilosa really feels

Feels-like highFeels-like lowactual air temp

The felt-temperature range through the year — heat index on the day's high (summer humidity), wind chill on the night's low (winter wind). The dashed lines are the plain thermometer; the gap is how much hotter or colder it really feels.

On the hottest afternoons, once humidity is folded in, Kilosa feels like about 33°C (around December 23). About 79 days a year carry some heat stress, peaking in December.

10°15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan32312121
Feb32302121
Mar31292121
Apr28272020
May26261818
Jun26261616
Jul26261515
Aug26261616
Sep28281717
Oct30301818
Nov31302020
Dec32312121

Average hourly temperature in Kilosa

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 December afternoons, near 31°C, and coldest before dawn in July, near 15°C.

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

Kilosa 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
Jan31° / 21°14515.212.44.1
Feb30° / 21°1441412.24.1
Mar29° / 21°15321.6124.0
Apr27° / 20°11722.511.94.6
May26° / 18°5212.211.76.3
Jun26° / 16°123.711.67.7
Jul26° / 15°82.411.67.9
Aug26° / 16°133.911.87.5
Sep28° / 17°123.7126.9
Oct30° / 18°357.612.25.6
Nov30° / 20°5211.112.34.8
Dec31° / 21°10113.412.44.2

Chance of rain

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

Kilosa gets about 842 mm of precipitation a year. On a typical day the chance of rain is often wet, but that rises and falls sharply with the seasons.

The wetter season lasts 6.1 months, from around Nov 14 to May 17, peaking in April at about 80% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 19.

March is the wettest month by volume, with 153 mm over about 22 wet days; July is the driest, with 8 mm.

0%10%20%30%40%50%60%70%80%90%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetApr 4 · 80%Jul 19 · 7%
Rain on a day (%)Rain days
Jan4815
Feb5114
Mar6922
Apr7423
May3912
Jun134
Jul82
Aug124
Sep134
Oct258
Nov3611
Dec4413

Monthly rainfall

Over a full year, Kilosa collects about 842 mm of rain across 131 wet days — roughly 70 mm in an average month.

It doesn’t fall evenly. March is the wettest month with 153 mm, while July is the driest at just 8 mm. The three wettest months alone bring about 52% of the year’s total.

0255075100125150175200JanFebMarAprMayJunJulAugSepOctNovDec1451441531175212813123552101
Rainfall (mm)Rain days
Jan14515
Feb14414
Mar15322
Apr11723
May5212
Jun124
Jul82
Aug134
Sep124
Oct358
Nov5211
Dec10113

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Kilosa, 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 August 18 and lasts for 4.1 months, ending around December 20. The clearest month is October, when the sky is clear, mostly clear, or partly cloudy 69% of the time on average.

The cloudier part of the year begins around December 21 and lasts for 4.6 months, ending around May 8. The cloudiest month is April, when it is overcast or mostly cloudy 60% 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%JanFebMarAprMayJunJulAugSepOctNovDecOct 28 · 71%Apr 8 · 37%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearer
Clearer (%)Cloudier (%)
Jan4258
Feb4159
Mar4258
Apr4060
May5842
Jun6337
Jul5743
Aug5446
Sep6535
Oct6931
Nov6832
Dec5743

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. The longest day, around January 1, brings about 12 h 24 min of light; the shortest, around May 27, only 11 h 36 min — a swing of roughly 0 h 48 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.46:316:52
Feb12.26:406:53
Mar12.06:406:43
Apr11.96:376:28
May11.76:386:19
Jun11.66:446:20
Jul11.66:496:27
Aug11.86:436:29
Sep12.06:286:25
Oct12.26:136:22
Nov12.36:086:27
Dec12.46:166:40

Sunny days

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

Kilosa averages about 8 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 4 and 13 days.

The sunnier stretch runs 3.6 months, from around Sep 16 to Jan 3. The sunniest month is November, with roughly 13 sunny days (mixed).

The greyest month is April, down near 5 sunny days — about 64% fewer than the November peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergloomymixedbrightNov 2513 daysApr 84 days
Sunny daysSky
Jan8Gloomy
Feb6Gloomy
Mar6Gloomy
Apr5Gloomy
May7Gloomy
Jun9Mixed
Jul8Gloomy
Aug6Gloomy
Sep8Mixed
Oct12Mixed
Nov13Mixed
Dec12Mixed

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

The more humid part of the year lasts 7.3 months, from around October 22 to May 30. The muggiest month is March, when the air feels humid, muggy or worse about 100% of the time.

The most comfortable stretch runs from around May 31 to October 21, and July is the most comfortable month — the air is dry or comfortable 90% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 18 · 94%Mar 15 · 0%oppressivehumidmuggycomfortabledryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan01206316
Feb01186319
Mar0077419
Apr0110808
May21343420
Jun21433330
Jul3852900
Aug21671300
Sep8682310
Oct23749120
Nov01045441
Dec0126676

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 Kilosa is steady company: average speeds sit near 5 km/hcalm — in every month of the year, with no meaningful windy or calm season.

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmOct 3 · 6 km/hMar 25 · 4 km/h
Wind speed (km/h)Feels
Jan5calm
Feb5calm
Mar4calm
Apr5calm
May5calm
Jun6calm
Jul6calm
Aug6calm
Sep6calm
Oct6calm
Nov6calm
Dec5calm

Hazard calendar for Kilosa

In seasonPeak

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

Kilosa's rainy season runs December–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 Kilosa

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid September, Kilosa 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 Kilosa for general outdoor tourist activities is from mid May to late September, with a peak score in the third week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 16 · 8.0

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
Jan4.1fair
Feb4.1fair
Mar4.0fair
Apr4.6fair
May6.3good
Jun7.7ideal
Jul7.9ideal
Aug7.5ideal
Sep6.9good
Oct5.7good
Nov4.8fair
Dec4.2fair

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

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationSep 22 · 8.0

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 Kilosa, 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.

Kilosa packs about the same all year — highs hold near 31°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 December, Kilosa sees daytime highs around 31°C and nights near 21°C. Pack light clothes and sun protection. Worth having: rain gear. About 13 days see rain.

UV index (midday) in Kilosa 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 Kilosa peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 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 12UV 15Jun 17UV 10
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun10Very high
Jul11Extreme
Aug11Extreme
Sep13Extreme
Oct14Extreme
Nov13Extreme
Dec13Extreme

Average hourly UV index in Kilosa

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)
Jan8.56.5
Feb8.57
Mar8.56.5
Apr86.5
May7.55.5
Jun7.55
Jul75
Aug7.55.5
Sep86
Oct8.56.5
Nov86.5
Dec8.56.5

Air quality in Kilosa 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 Kilosa is worst in September — around 17 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (May, 9 µg/m³).

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

01020JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1517 µg/m³May 109 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb11Good
Mar10Good
Apr9Good
May9Good
Jun10Good
Jul14Moderate
Aug16Moderate
Sep17Moderate
Oct15Moderate
Nov9Good
Dec9Good
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Kilosa 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. Kilosa banks about 4,914 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around December.

02,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan487
Feb435
Mar462
Apr408
May380
Jun327
Jul321
Aug345
Sep374
Oct432
Nov454
Dec490

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.

Kilosa receives about 5.5 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.6 and 6.3 kWh/m².

The brighter stretch of the year lasts 6.3 months, from around Sep 9 to Mar 19. The brightest month is October, averaging about 6.2 kWh/m² (intense).

The dimmest month is May, down near 4.6 kWh/m² — roughly 25% less than the October peak.

01234567JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerbrighterdimmoderatebrightintenseOct 296.3 kWhMay 174.6 kWh
Solar energy (kWh/m²)Level
Jan6.0Bright
Feb6.1Intense
Mar5.6Bright
Apr4.8Bright
May4.6Bright
Jun4.8Bright
Jul4.7Bright
Aug4.9Bright
Sep5.7Bright
Oct6.2Intense
Nov6.3Intense
Dec6.0Intense

Where is Kilosa?

Kilosa sits at 6.8°S, 37.0°E, 495 m above sea level, in Tanzania. The nearest listed city is Msowero, 41 km away.

KibakweMorogoroMpwapwaGeiro

Topography around Kilosa

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

Within 3 km, the terrain around Kilosa has significant variations in elevation — a maximum elevation change of 485 m around an average of 547 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 907 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,383 m.

The land around Kilosa is covered by trees (48%) and shrubs (24%) within 3 km, trees (49%), shrubs (21%) and cropland (20%) within 16 km, and trees (40%) and shrubs (28%) within 80 km.

3 km
485 m
16 km
907 m
80 km
2,383 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
Nearby: Msowero 41 km · Mikumi 63 km · Dumila 64 km · Magole 67 km · Kibakwe 69 km · Morogoro 75 km · Mpwapwa 77 km · Geiro 77 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 Kilosa (-6.8333°, 36.9833°, elevation 495 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).