Climate and average weather in Butiama

In Butiama, 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: mid May to late August

Over the course of the year, the temperature in Butiama typically varies from 17°C to 29°C, and is rarely below 16°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 Butiama for warm-weather activities is from mid May to late August.

Hottest
Sep
29°
Coldest
Dec
18°
Wettest
Dec
211 mm
Driest
Jul
23 mm
Rain / yr
1510 mm
190 wet days
Daylight
11.9–12.1 h
shortest–longest
Elevation
1,500 m
1.8°S
Clearest
Aug
60% cloud

Butiama is town in Mara, Tanzania.

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

Butiama 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 August.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Butiama stay fairly even through the year, without a distinct hot or cool season. The warmest month is September, with an average high of 29°C and low of 18°C; the coolest is December, with an average low of 18°C and high of 27°C.

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

15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2718
Feb2818
Mar2818
Apr2718
May2718
Jun2718
Jul2817
Aug2818
Sep2918
Oct2818
Nov2718
Dec2718

Average hourly temperature in Butiama

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 29°C, and coldest before dawn in December, near 18°C.

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

Butiama 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° / 18°16621.212.14.8
Feb28° / 18°1341812.14.9
Mar28° / 18°18121124.7
Apr27° / 18°20622.2124.4
May27° / 18°10815.511.95.6
Jun27° / 18°437.911.96.6
Jul28° / 17°234.311.96.9
Aug28° / 18°49811.96.0
Sep29° / 18°6410.4125.4
Oct28° / 18°11916.4124.8
Nov27° / 18°20522.112.14.5
Dec27° / 18°21123.212.14.6

Chance of rain

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

Butiama gets about 1510 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 17 to May 14, peaking in April at about 77% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 12.

December is the wettest month by volume, with 211 mm over about 23 wet days; July is the driest, with 23 mm.

0%10%20%30%40%50%60%70%80%90%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetApr 1 · 77%Jul 12 · 11%
Rain on a day (%)Rain days
Jan6821
Feb6418
Mar6821
Apr7522
May5016
Jun268
Jul154
Aug278
Sep3510
Oct5316
Nov7322
Dec7523

Monthly rainfall

Over a full year, Butiama collects about 1510 mm of rain across 190 wet days — roughly 126 mm in an average month.

It doesn’t fall evenly. December is the wettest month with 211 mm, while July is the driest at just 23 mm. The three wettest months alone bring about 41% of the year’s total.

050100150200250JanFebMarAprMayJunJulAugSepOctNovDec16613418120610843234964119205211
Rainfall (mm)Rain days
Jan16621
Feb13418
Mar18121
Apr20622
May10816
Jun438
Jul234
Aug498
Sep6410
Oct11916
Nov20522
Dec21123

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Butiama, 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 14 and lasts for 4.5 months, ending around September 26. The clearest month is August, when the sky is clear, mostly clear, or partly cloudy 52% of the time on average.

The cloudier part of the year begins around September 27 and lasts for 2.8 months, ending around December 21. The cloudiest month is April, when it is overcast or mostly cloudy 79% 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 · 56%Nov 7 · 19%mostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan4159
Feb4258
Mar3664
Apr2179
May4159
Jun4753
Jul4951
Aug5248
Sep4654
Oct2476
Nov2278
Dec3565

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, Butiama 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)
Jan12.16:516:56
Feb12.16:577:00
Mar12.06:536:54
Apr12.06:466:43
May11.96:436:38
Jun11.96:476:41
Jul11.96:536:47
Aug11.96:506:46
Sep12.06:396:38
Oct12.06:286:30
Nov12.16:276:32
Dec12.16:376:43

Sunny days

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

Butiama averages about 5 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 2 and 10 days.

The sunnier stretch runs 4.6 months, from around May 13 to Sep 28. The sunniest month is May, with roughly 7 sunny days (gloomy).

The greyest month is November, down near 2 sunny days — about 66% fewer than the May peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedMay 3110 daysNov 102 days
Sunny daysSky
Jan6Gloomy
Feb6Gloomy
Mar6Gloomy
Apr3Gloomy
May7Gloomy
Jun7Gloomy
Jul7Gloomy
Aug7Gloomy
Sep6Gloomy
Oct3Gloomy
Nov2Gloomy
Dec5Gloomy

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

The more humid part of the year lasts 7.3 months, from around October 19 to May 27. The muggiest month is April, when the air feels humid, muggy or worse about 97% of the time.

The most comfortable stretch runs from around May 28 to October 18, and July is the most comfortable month — the air is dry or comfortable 74% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 14 · 77%Apr 26 · 3%muggyhumidcomfortabledryhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan166726
Feb1126126
Mar175339
Apr034651
May1135729
Jun1139436
Jul3440260
Aug2837341
Sep1538433
Oct4256011
Nov067321
Dec066826

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 Butiama is steady company: average speeds sit near 7 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeJul 26 · 8 km/hApr 27 · 6 km/h
Wind speed (km/h)Feels
Jan7calm
Feb7calm
Mar7calm
Apr6calm
May6calm
Jun7calm
Jul8calm
Aug8calm
Sep7calm
Oct7calm
Nov6calm
Dec6calm

Best time to visit Butiama

TravelBeach/poolTemperatureCloudsPrecipitation

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

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

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 11 · 7.2

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
Jan4.9fair
Feb4.9fair
Mar4.7fair
Apr4.4fair
May5.6good
Jun6.6good
Jul6.9good
Aug6.0good
Sep5.4fair
Oct4.8fair
Nov4.5fair
Dec4.6fair

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 Butiama for hot-weather activities is from late May to early October, with a peak score in the second week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 13 · 7.7

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 Butiama, 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.

Butiama 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 September, Butiama sees daytime highs around 29°C and nights near 18°C. Pack light clothes and sun protection. Worth having: rain gear. About 10 days see rain.

UV index (midday) in Butiama 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 Butiama peaks around March 17 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 17UV 16Jun 18UV 10
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun10Very high
Jul11Extreme
Aug11Extreme
Sep13Extreme
Oct14Extreme
Nov13Extreme
Dec11Extreme

Average hourly UV index in Butiama

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
Apr8.56.5
May7.55.5
Jun7.55
Jul7.55.5
Aug7.55.5
Sep86
Oct86.5
Nov86.5
Dec86

Air quality in Butiama 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 Butiama is worst in July — around 21 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (April, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateGoodJul 1521 µg/m³Apr 1510 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb16Moderate
Mar12Good
Apr10Good
May12Good
Jun19Moderate
Jul21Moderate
Aug18Moderate
Sep16Moderate
Oct12Good
Nov10Good
Dec12Good
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Butiama 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. Butiama banks about 4,622 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around September.

01,0002,0003,0004,0005,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan380
Feb359
Mar397
Apr374
May385
Jun374
Jul391
Aug403
Sep403
Oct413
Nov371
Dec374

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.

Butiama receives about 5.8 kWh/m² a day of solar energy — bright — and it stays remarkably steady, holding between 5.4 and 6.4 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightintenseFeb 276.4 kWhJun 205.4 kWh
Solar energy (kWh/m²)Level
Jan5.9Bright
Feb6.3Intense
Mar6.2Intense
Apr5.7Bright
May5.6Bright
Jun5.5Bright
Jul5.6Bright
Aug5.8Bright
Sep6.1Intense
Oct5.8Bright
Nov5.5Bright
Dec5.6Bright

Where is Butiama?

Butiama sits at 1.8°S, 34.0°E, 1,500 m above sea level, in Tanzania. The nearest listed city is Nyamuswa, 16 km away.

MatongoShiratiKibaraSirari

Topography around Butiama

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

Within 3 km, the terrain around Butiama has only modest variations in elevation — a maximum elevation change of 241 m around an average of 1,459 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 545 m; within 80 km, large variations in elevation — a maximum elevation change of 656 m.

The land around Butiama is covered by shrubs (33%), cropland (30%) and grassland (29%) within 3 km, cropland (51%) and shrubs (30%) within 16 km, and cropland (29%), grassland (28%) and water (26%) within 80 km.

3 km
241 m
16 km
545 m
80 km
656 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
Nearby: Nyamuswa 16 km · Bunda 30 km · Musoma 35 km · Tarime 64 km · Matongo 70 km · Shirati 70 km · Kibara 72 km · Sirari 80 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 Butiama (-1.7667°, 33.9667°, elevation 1,500 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).