Climate and average weather in Nzega

In Nzega, 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 April to early September

Over the course of the year, the temperature in Nzega typically varies from 17°C to 32°C, and is rarely below 16°C or above 34°C. October is the hottest month of the year, while January is the coldest.

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

Hottest
Oct
32°
Coldest
Jan
19°
Wettest
Dec
134 mm
Driest
Jul
0 mm
Rain / yr
703 mm
101 wet days
Daylight
11.8–12.2 h
shortest–longest
Elevation
1,241 m
4.2°S
Clearest
Jul
43% cloud

Nzega is town in Tabora Region, Tanzania.

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

Nzega 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 April to early September.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Nzega stay fairly even through the year, without a distinct hot or cool season. The warmest month is October, with an average high of 32°C and low of 20°C; the coolest is January, with an average low of 19°C and high of 28°C.

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

15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2819
Feb2919
Mar2919
Apr2819
May2919
Jun2918
Jul2917
Aug3018
Sep3119
Oct3220
Nov3020
Dec2819

Average hourly temperature in Nzega

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 October afternoons, near 32°C, and coldest before dawn in January, near 19°C.

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

Nzega 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
Jan28° / 19°11818.112.25.0
Feb29° / 19°9314.412.14.8
Mar29° / 19°11816.2124.8
Apr28° / 19°9212.411.95.3
May29° / 19°193.611.86.3
Jun29° / 18°10.311.86.8
Jul29° / 17°0011.87.1
Aug30° / 18°20.311.96.4
Sep31° / 19°40.8125.4
Oct32° / 20°214.112.14.6
Nov30° / 20°10012.212.24.6
Dec28° / 19°13418.312.24.8

Chance of rain

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

Nzega gets about 703 mm of precipitation a year. On a typical day the chance of rain is some rain, but that rises and falls sharply with the seasons.

The wetter season lasts 5.8 months, from around Nov 3 to Apr 28, peaking in December at about 61% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jun 30.

December is the wettest month by volume, with 134 mm over about 18 wet days; July is the driest, with 0 mm.

0%10%20%30%40%50%60%70%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetDec 18 · 61%Jun 30 · 0%
Rain on a day (%)Rain days
Jan5818
Feb5214
Mar5216
Apr4212
May124
Jun10
Jul00
Aug10
Sep31
Oct144
Nov4012
Dec5918

Monthly rainfall

Over a full year, Nzega collects about 703 mm of rain across 101 wet days — roughly 59 mm in an average month.

It doesn’t fall evenly. December is the wettest month with 134 mm, while July is the driest at just 0 mm. The three wettest months alone bring about 53% of the year’s total.

0255075100125150175JanFebMarAprMayJunJulAugSepOctNovDec118931189219102421100134
Rainfall (mm)Rain days
Jan11818
Feb9314
Mar11816
Apr9212
May194
Jun10
Jul00
Aug20
Sep41
Oct214
Nov10012
Dec13418

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Nzega, 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 6 and lasts for 5.4 months, ending around October 17. The clearest month is September, when the sky is clear, mostly clear, or partly cloudy 71% of the time on average.

The cloudier part of the year begins around October 18 and lasts for 6.6 months, ending around May 5. The cloudiest month is January, when it is overcast or mostly cloudy 64% 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%JanFebMarAprMayJunJulAugSepOctNovDecSep 8 · 73%Jan 15 · 35%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan3664
Feb3862
Mar4258
Apr4357
May5842
Jun6139
Jul6931
Aug6733
Sep7129
Oct5347
Nov4060
Dec3763

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, Nzega 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)
Jan12.26:507:03
Feb12.16:587:06
Mar12.06:566:58
Apr11.96:506:45
May11.86:496:38
Jun11.86:556:40
Jul11.87:006:46
Aug11.96:566:47
Sep12.06:426:41
Oct12.16:296:35
Nov12.26:276:38
Dec12.26:366:51

Sunny days

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

Nzega averages about 9 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 5 and 15 days.

The sunnier stretch runs 5.2 months, from around May 8 to Oct 12. The sunniest month is July, with roughly 14 sunny days (mixed).

The greyest month is January, down near 6 sunny days — about 60% fewer than the July peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightJul 1315 daysJan 95 days
Sunny daysSky
Jan6Gloomy
Feb6Gloomy
Mar7Gloomy
Apr7Gloomy
May11Mixed
Jun12Mixed
Jul15Mixed
Aug14Mixed
Sep14Mixed
Oct9Mixed
Nov6Gloomy
Dec6Gloomy

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

The more humid part of the year lasts 5.8 months, from around November 11 to May 7. The muggiest month is January, when the air feels humid, muggy or worse about 88% of the time.

The most comfortable stretch runs from around May 8 to November 10, and June is the most comfortable month — the air is dry or comfortable 99% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJun 29 · 100%Jan 14 · 9%muggycomfortabledryhumidhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan385929
Feb7125327
Mar4155229
Apr3224925
May3441214
Jun871110
Jul98200
Aug96310
Sep93520
Oct7017131
Nov2724409
Dec7155424

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 Nzega is typically calm, near 10 km/h, and varies moderately with the seasons.

The windier part of the year lasts 6.2 months, from around Apr 23 to Oct 27. The windiest month is July, averaging about 15 km/h (light breeze).

The calmer part of the year runs from around Oct 28 to Apr 22, with December the calmest month at about 6 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezeJul 11 · 15 km/hDec 19 · 6 km/h
Wind speed (km/h)Feels
Jan6calm
Feb7calm
Mar8calm
Apr10calm
May12light breeze
Jun13light breeze
Jul15light breeze
Aug14light breeze
Sep13light breeze
Oct12calm
Nov8calm
Dec6calm

Hazard calendar for Nzega

In seasonPeak

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

Nzega's rainy season runs November–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 Nzega

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around early May, Nzega 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 Nzega for general outdoor tourist activities is from late April to early September, 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
Jan5.0fair
Feb4.8fair
Mar4.8fair
Apr5.3fair
May6.3good
Jun6.8good
Jul7.1good
Aug6.4good
Sep5.4fair
Oct4.7fair
Nov4.6fair
Dec4.8fair

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 Nzega for hot-weather activities is from late April to late October, with a peak score in the third week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 20 · 8.8

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 Nzega, 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.

Nzega packs about the same all year — highs hold near 32°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 October, Nzega sees daytime highs around 32°C and nights near 20°C. Pack light clothes and sun protection. About 4 days see rain.

UV index (midday) in Nzega 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 Nzega peaks around February 22 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 18 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeFeb 22UV 16Jun 18UV 10
UV index (midday)Level
Jan13Extreme
Feb16Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun10Extreme
Jul11Extreme
Aug11Extreme
Sep13Extreme
Oct14Extreme
Nov14Extreme
Dec13Extreme

Average hourly UV index in Nzega

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 February 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)
Jan86.5
Feb8.57
Mar8.57
Apr86.5
May7.56
Jun7.55
Jul7.55.5
Aug7.55.5
Sep86
Oct8.56.5
Nov86.5
Dec86.5
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Nzega 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. Nzega banks about 5,154 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around October.

02,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan416
Feb390
Mar433
Apr412
May434
Jun407
Jul405
Aug435
Sep460
Oct494
Nov446
Dec422

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.

Nzega receives about 6.3 kWh/m² a day of solar energy — intense — and it stays remarkably steady, holding between 5.8 and 7.2 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.

012345678JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightintenseSep 287.2 kWhDec 185.8 kWh
Solar energy (kWh/m²)Level
Jan6.0Intense
Feb6.4Intense
Mar6.3Intense
Apr6.0Intense
May5.9Bright
Jun6.0Bright
Jul6.2Intense
Aug6.5Intense
Sep7.0Intense
Oct7.0Intense
Nov6.2Intense
Dec5.9Bright

Where is Nzega?

Nzega sits at 4.2°S, 33.2°E, 1,241 m above sea level, in Tanzania. The nearest listed city is Tinde, 37 km away.

KahamaOld ShinyangaIgungaSongwaMwadui

Topography around Nzega

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

Within 3 km, the terrain around Nzega has only modest variations in elevation — a maximum elevation change of 82 m around an average of 1,224 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 318 m; within 80 km, significant variations in elevation — a maximum elevation change of 416 m.

The land around Nzega is covered by cropland (61%) and artificial surfaces (22%) within 3 km, cropland (71%) within 16 km, and cropland (69%) within 80 km.

3 km
82 m
16 km
318 m
80 km
416 m
treesshrubsgrasslandcroplandartificial surfaceswater
Nearby: Tinde 37 km · Isaka 45 km · Shinyanga 67 km · Kahama 77 km · Old Shinyanga 78 km · Igunga 78 km · Songwa 86 km · Mwadui 87 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 Nzega (-4.2167°, 33.1833°, elevation 1,241 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. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).