Climate and average weather in Biharamulo

In Biharamulo, 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 November.

Best: mid May to late August

Over the course of the year, the temperature in Biharamulo typically varies from 17°C to 28°C, and is rarely below 15°C or above 30°C. August is the hottest month of the year, while November is the coldest.

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

Hottest
Aug
28°
Coldest
Nov
17°
Wettest
Nov
164 mm
Driest
Jul
4 mm
Rain / yr
992 mm
161 wet days
Daylight
11.8–12.2 h
shortest–longest
Elevation
1,479 m
2.6°S
Clearest
Jul
58% cloud

Biharamulo is town in Kagera Region, Tanzania.

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

Biharamulo 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 Biharamulo, from 1991–2020 of climate data. The shaded bands show the range most days fall in — 10th to 90th percentile.

Temperatures in Biharamulo 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 November, with an average low of 17°C and high of 26°C.

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

10°15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2717
Feb2717
Mar2718
Apr2618
May2718
Jun2717
Jul2817
Aug2817
Sep2818
Oct2718
Nov2617
Dec2617

Average hourly temperature in Biharamulo

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 November, near 17°C.

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

Biharamulo 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° / 17°10918.812.15.1
Feb27° / 17°7514.512.15.4
Mar27° / 18°11618.4125.1
Apr26° / 18°1472111.94.7
May27° / 18°579.711.96.5
Jun27° / 17°81.411.97.5
Jul28° / 17°40.711.97.4
Aug28° / 17°224.211.96.4
Sep28° / 18°459.3125.8
Oct27° / 18°10417.312.15.2
Nov26° / 17°1642412.14.3
Dec26° / 17°14321.912.14.7

Chance of rain

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

Biharamulo gets about 992 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 7.2 months, from around Oct 2 to May 8, peaking in November at about 80% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 10.

November is the wettest month by volume, with 164 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 wetNov 27 · 80%Jul 10 · 1%
Rain on a day (%)Rain days
Jan6119
Feb5215
Mar5918
Apr6921
May3210
Jun51
Jul31
Aug144
Sep329
Oct5617
Nov7824
Dec7122

Monthly rainfall

Over a full year, Biharamulo collects about 992 mm of rain across 161 wet days — roughly 83 mm in an average month.

It doesn’t fall evenly. November is the wettest month with 164 mm, while July is the driest at just 4 mm. The three wettest months alone bring about 46% of the year’s total.

0255075100125150175200JanFebMarAprMayJunJulAugSepOctNovDec1097511614757842245104164143
Rainfall (mm)Rain days
Jan10919
Feb7515
Mar11618
Apr14721
May5710
Jun81
Jul41
Aug224
Sep459
Oct10417
Nov16424
Dec14322

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Biharamulo, 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 6. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 48% of the time on average.

The cloudier part of the year begins around October 7 and lasts for 3.8 months, ending around January 30. The cloudiest month is November, 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%JanFebMarAprMayJunJulAugSepOctNovDecJul 12 · 51%Nov 13 · 17%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan2773
Feb3169
Mar2773
Apr1981
May3961
Jun4357
Jul4852
Aug4456
Sep4357
Oct2872
Nov1882
Dec2476

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

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.17:007:08
Feb12.17:077:12
Mar12.07:047:05
Apr11.96:576:53
May11.96:556:47
Jun11.97:006:50
Jul11.97:056:56
Aug11.97:016:56
Sep12.06:506:49
Oct12.16:386:42
Nov12.16:366:44
Dec12.16:466:55

Sunny days

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

Biharamulo averages about 4 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 5.0 months, from around May 12 to Oct 9. The sunniest month is July, with roughly 8 sunny days (gloomy).

The greyest month is November, down near 1 sunny days — about 82% fewer than the July peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedJul 99 daysNov 131 days
Sunny daysSky
Jan3Gloomy
Feb4Gloomy
Mar4Gloomy
Apr2Gloomy
May6Gloomy
Jun6Gloomy
Jul8Gloomy
Aug7Gloomy
Sep6Gloomy
Oct4Gloomy
Nov1Gloomy
Dec2Gloomy

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

The more humid part of the year lasts 7.1 months, from around October 12 to May 14. The muggiest month is November, when the air feels humid, muggy or worse about 95% of the time.

The most comfortable stretch runs from around May 15 to October 11, and July is the most comfortable month — the air is dry or comfortable 97% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 12 · 98%Nov 21 · 4%muggyhumiddrycomfortablehumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan05904
Feb112825
Mar06868
Apr07849
May535563
Jun5036140
Jul841330
Aug6123160
Sep2637370
Oct625681
Nov05941
Dec05941

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.

Across the year, average wind speed in Biharamulo is typically calm, near 7 km/h, and varies little with the seasons.

The windier part of the year lasts 5.6 months, from around May 4 to Oct 21. The windiest month is July, averaging about 8 km/h (calm).

The calmer part of the year runs from around Oct 22 to May 3, with December the calmest month at about 5 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezeJul 10 · 8 km/hDec 14 · 5 km/h
Wind speed (km/h)Feels
Jan5calm
Feb6calm
Mar6calm
Apr6calm
May7calm
Jun8calm
Jul8calm
Aug8calm
Sep7calm
Oct7calm
Nov5calm
Dec5calm

Hazard calendar for Biharamulo

In seasonPeak

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

Biharamulo'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 Biharamulo

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid August, Biharamulo 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 Biharamulo 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 8 · 7.7

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
Jan5.1fair
Feb5.4fair
Mar5.1fair
Apr4.7fair
May6.4good
Jun7.5good
Jul7.4good
Aug6.4good
Sep5.8good
Oct5.2fair
Nov4.3fair
Dec4.7fair

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

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 14 · 8.2

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 Biharamulo, 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.

Biharamulo 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, Biharamulo sees daytime highs around 28°C and nights near 17°C. Pack light clothes. Worth having: sun protection. About 4 days see rain.

UV index (midday) in Biharamulo 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 Biharamulo peaks around March 14 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 14UV 16Jun 19UV 10
UV index (midday)Level
Jan12Extreme
Feb15Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun10Extreme
Jul11Extreme
Aug11Extreme
Sep13Extreme
Oct14Extreme
Nov13Extreme
Dec12Extreme

Average hourly UV index in Biharamulo

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
Feb8.56.5
Mar8.56.5
Apr86.5
May7.56
Jun7.55
Jul7.55.5
Aug7.55.5
Sep86
Oct86.5
Nov86
Dec85.5

Air quality in Biharamulo 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 Biharamulo is worst in July — around 22 µg/m³ PM2.5 (moderate), about 1.7× the cleanest month (April, 13 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJul 1422 µg/m³Apr 2113 µg/m³
PM2.5 (µg/m³)Level
Jan22Moderate
Feb20Moderate
Mar16Moderate
Apr13Moderate
May13Moderate
Jun21Moderate
Jul22Moderate
Aug20Moderate
Sep17Moderate
Oct14Moderate
Nov15Moderate
Dec17Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Biharamulo 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. Biharamulo banks about 4,432 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around August.

01,0002,0003,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan364
Feb344
Mar381
Apr358
May374
Jun363
Jul381
Aug400
Sep386
Oct382
Nov346
Dec353

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.

Biharamulo receives about 5.6 kWh/m² a day of solar energy — bright — and it stays remarkably steady, holding between 5.2 and 6.0 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightintenseSep 226.0 kWhNov 175.2 kWh
Solar energy (kWh/m²)Level
Jan5.6Bright
Feb6.0Bright
Mar5.8Bright
Apr5.3Bright
May5.3Bright
Jun5.4Bright
Jul5.7Bright
Aug5.7Bright
Sep6.0Bright
Oct5.7Bright
Nov5.2Bright
Dec5.3Bright

Where is Biharamulo?

Biharamulo sits at 2.6°S, 31.3°E, 1,479 m above sea level, in Tanzania. The nearest listed city is Chato, 51 km away.

NgaraRulengeUyovuMhalambaBuseresereKatoroKakonko

Topography around Biharamulo

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

Within 3 km, the terrain around Biharamulo has only modest variations in elevation — a maximum elevation change of 192 m around an average of 1,461 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 473 m; within 80 km, large variations in elevation — a maximum elevation change of 775 m.

The land around Biharamulo is covered by shrubs (31%) and grassland (27%) within 3 km, shrubs (36%), grassland (23%) and cropland (22%) within 16 km, and grassland (29%) and cropland (28%) within 80 km.

3 km
192 m
16 km
473 m
80 km
775 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
Nearby: Chato 51 km · Ngara 74 km · Rulenge 76 km · Uyovu 76 km · Mhalamba 78 km · Buseresere 79 km · Katoro 80 km · Kakonko 82 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 Biharamulo (-2.6319°, 31.3089°, elevation 1,479 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).