Climate and average weather in Katerero

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

Best: early June to late August

Over the course of the year, the temperature in Katerero typically varies from 20°C to 25°C, and is rarely below 19°C or above 26°C. February is the hottest month of the year, while July is the coldest.

Based on the travel score, the best time of year to visit Katerero for warm-weather activities is from early June to late August.

Hottest
Feb
25°
Coldest
Jul
21°
Wettest
Apr
222 mm
Driest
Jul
26 mm
Rain / yr
1492 mm
242 wet days
Daylight
11.9–12.1 h
shortest–longest
Elevation
1,164 m
1.4°S
Clearest
Jul
50% cloud

Katerero 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 early June to late August.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Katerero stay fairly even through the year, without a distinct hot or cool season. The warmest month is February, with an average high of 25°C and low of 21°C; the coolest is July, with an average low of 21°C and high of 23°C.

Days typically run about 3°C warmer than nights year-round.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2421
Feb2521
Mar2521
Apr2421
May2421
Jun2421
Jul2321
Aug2320
Sep2420
Oct2421
Nov2320
Dec2421

Average hourly temperature in Katerero

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 February afternoons, near 25°C, and coldest before dawn in July, near 21°C.

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

Katerero 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
Jan24° / 21°13423.612.14.8
Feb25° / 21°12120.3124.9
Mar25° / 21°17324.7124.6
Apr24° / 21°22226.4124.1
May24° / 21°14822.211.95.1
Jun24° / 21°4910.211.96.9
Jul23° / 21°264.711.97.8
Aug23° / 20°6112.3126.6
Sep24° / 20°9319.6125.3
Oct24° / 21°14725.3124.4
Nov23° / 20°16526.512.14.1
Dec24° / 21°15225.912.14.4

Chance of rain

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

Katerero gets about 1492 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 8.0 months, from around Sep 20 to May 19, peaking in April at about 89% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 15.

April is the wettest month by volume, with 222 mm over about 26 wet days; July is the driest, with 26 mm.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetApr 19 · 89%Jul 15 · 12%
Rain on a day (%)Rain days
Jan7724
Feb7320
Mar7925
Apr8826
May7122
Jun3510
Jul175
Aug4012
Sep6520
Oct8125
Nov8827
Dec8326

Monthly rainfall

Over a full year, Katerero collects about 1492 mm of rain across 242 wet days — roughly 124 mm in an average month.

It doesn’t fall evenly. April is the wettest month with 222 mm, while July is the driest at just 26 mm. The three wettest months alone bring about 37% of the year’s total.

050100150200250JanFebMarAprMayJunJulAugSepOctNovDec13412117322214849266193147165152
Rainfall (mm)Rain days
Jan13424
Feb12120
Mar17325
Apr22226
May14822
Jun4910
Jul265
Aug6112
Sep9320
Oct14725
Nov16527
Dec15226

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Katerero, 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 4.3 months, ending around September 22. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 58% of the time on average.

The cloudier part of the year begins around February 17 and lasts for 2.8 months, ending around May 13. The cloudiest month is April, when it is overcast or mostly cloudy 80% 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 13 · 62%Apr 20 · 19%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan3466
Feb3763
Mar3169
Apr2080
May3961
Jun5149
Jul5842
Aug5347
Sep4258
Oct2575
Nov2179
Dec3169

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, Katerero 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)
Jan12.17:007:05
Feb12.07:067:09
Mar12.07:027:03
Apr12.06:546:52
May11.96:516:47
Jun11.96:566:51
Jul11.97:016:56
Aug12.06:596:56
Sep12.06:486:47
Oct12.06:376:39
Nov12.16:366:40
Dec12.16:476:52

Sunny days

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

Katerero averages about 6 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 2 and 14 days.

The sunnier stretch runs 4.3 months, from around May 13 to Sep 21. The sunniest month is July, with roughly 13 sunny days (mixed).

The greyest month is November, down near 2 sunny days — about 81% fewer than the July peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightJul 1314 daysNov 92 days
Sunny daysSky
Jan5Gloomy
Feb6Gloomy
Mar5Gloomy
Apr3Gloomy
May8Gloomy
Jun10Mixed
Jul13Mixed
Aug11Mixed
Sep7Gloomy
Oct4Gloomy
Nov2Gloomy
Dec4Gloomy

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

The more humid part of the year lasts 8.9 months, from around September 5 to June 2. 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 3 to September 4, and July is the most comfortable month — the air is dry or comfortable 38% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJul 12 · 44%Jan 1 · 0%muggyhumidcomfortablehumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan001882
Feb001585
Mar001288
Apr001585
May013662
Jun0176023
Jul137556
Aug0186121
Sep044650
Oct002673
Nov002080
Dec001882

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 Katerero is typically calm, near 11 km/h, and varies moderately with the seasons.

The windier part of the year lasts 5.6 months, from around Apr 8 to Sep 25. The windiest month is July, averaging about 14 km/h (light breeze).

The calmer part of the year runs from around Sep 26 to Apr 7, with December the calmest month at about 8 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezeJul 11 · 14 km/hDec 14 · 8 km/h
Wind speed (km/h)Feels
Jan9calm
Feb10calm
Mar10calm
Apr11calm
May12calm
Jun13light breeze
Jul14light breeze
Aug12light breeze
Sep11calm
Oct10calm
Nov8calm
Dec8calm

Best time to visit Katerero

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid June, Katerero is still near the start of its best-weather window — great conditions with the peak-season crowds not yet at full swing.

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 Katerero for general outdoor tourist activities is from early June to late August, with a peak score in the third week of July.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJul 15 · 8.1

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
Jan4.8fair
Feb4.9fair
Mar4.5fair
Apr4.1fair
May5.1fair
Jun6.9good
Jul7.8ideal
Aug6.6good
Sep5.4fair
Oct4.4fair
Nov4.1fair
Dec4.4fair

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

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 14 · 6.4

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 Katerero, 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.

Katerero packs about the same all year — highs hold near 25°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 February, Katerero sees daytime highs around 25°C and nights near 21°C. Pack rain gear. Worth having: light clothes and sun protection. About 20 days see rain.

UV index (midday) in Katerero 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 Katerero 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
Jan12Extreme
Feb15Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun10Extreme
Jul11Extreme
Aug10Extreme
Sep13Extreme
Oct13Extreme
Nov12Extreme
Dec11Extreme

Average hourly UV index in Katerero

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 7 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
Feb86.5
Mar8.57
Apr86.5
May7.56
Jun7.55
Jul7.55.5
Aug7.55.5
Sep86
Oct86
Nov86
Dec7.55.5

Air quality in Katerero 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 Katerero is worst in January — around 28 µg/m³ PM2.5 (moderate), about 2.1× the cleanest month (April, 13 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateJan 1927 µg/m³Apr 2113 µg/m³
PM2.5 (µg/m³)Level
Jan28Moderate
Feb24Moderate
Mar18Moderate
Apr13Moderate
May14Moderate
Jun20Moderate
Jul24Moderate
Aug26Moderate
Sep21Moderate
Oct16Moderate
Nov16Moderate
Dec20Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Katerero 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. Katerero banks about 4,479 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around February.

01,0002,0003,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan391
Feb366
Mar400
Apr371
May382
Jun368
Jul368
Aug367
Sep360
Oct372
Nov357
Dec376

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.

Katerero receives about 5.4 kWh/m² a day of solar energy — bright — and it stays remarkably steady, holding between 4.9 and 5.9 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightintenseFeb 155.9 kWhApr 284.9 kWh
Solar energy (kWh/m²)Level
Jan5.5Bright
Feb5.9Bright
Mar5.6Bright
Apr5.0Bright
May5.2Bright
Jun5.5Bright
Jul5.7Bright
Aug5.7Bright
Sep5.6Bright
Oct5.2Bright
Nov5.0Bright
Dec5.2Bright

Where is Katerero?

Katerero sits at 1.4°S, 31.7°E, 1,164 m above sea level, in Tanzania. The nearest listed city is Bukoba, 12 km away.

KasaaliKalisizoNakivale Refugee CampLwengo

Topography around Katerero

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

Within 3 km, the terrain around Katerero has only modest variations in elevation — a maximum elevation change of 179 m around an average of 1,192 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 278 m; within 80 km, large variations in elevation — a maximum elevation change of 601 m.

The land around Katerero is covered by grassland (44%), trees (30%) and shrubs (21%) within 3 km, grassland (30%), trees (28%) and water (21%) within 16 km, and water (48%) and grassland (24%) within 80 km.

3 km
179 m
16 km
278 m
80 km
601 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
Nearby: Bukoba 12 km · Kamachumu 27 km · Nsunga 47 km · Nshamba 49 km · Kasaali 89 km · Kalisizo 97 km · Nakivale Refugee Camp 110 km · Lwengo 115 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 Katerero (-1.4°, 31.7333°, elevation 1,164 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).