Climate and average weather in Shelui

In Shelui, 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 Shelui typically varies from 16°C to 32°C, and is rarely below 15°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 Shelui for warm-weather activities is from late April to early September.

Hottest
Oct
32°
Coldest
Jan
19°
Wettest
Dec
168 mm
Driest
Jul
0 mm
Rain / yr
814 mm
100 wet days
Daylight
11.7–12.3 h
shortest–longest
Elevation
1,091 m
4.4°S
Clearest
Jul
49% cloud

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

Temperatures in Shelui 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 19°C; the coolest is January, with an average low of 19°C and high of 28°C.

Days typically run about 11°C warmer than nights, with the widest day–night swing (around 13°C) in September.

10°15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2819
Feb2919
Mar2919
Apr2819
May2918
Jun2917
Jul2916
Aug3017
Sep3118
Oct3219
Nov3120
Dec2919

How hot and cold Shelui 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, Shelui feels like about 32°C (around October 6). About 30 days a year carry some heat stress, peaking in October.

15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan29281919
Feb29291919
Mar29291919
Apr29281919
May29291818
Jun29291717
Jul29291616
Aug30301717
Sep31311818
Oct32321919
Nov31312020
Dec29291919

Average hourly temperature in Shelui

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

Shelui 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°14117.612.24.9
Feb29° / 19°10414.512.14.7
Mar29° / 19°14216.7124.6
Apr28° / 19°11613.611.95.2
May29° / 18°204.111.86.3
Jun29° / 17°10.311.86.7
Jul29° / 16°00.111.87.0
Aug30° / 17°10.211.96.3
Sep31° / 18°20.5125.3
Oct32° / 19°183.212.14.5
Nov31° / 20°10110.412.24.4
Dec29° / 19°16818.512.24.6

Chance of rain

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

Shelui gets about 814 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 5.7 months, from around Nov 9 to Apr 30, peaking in December at about 63% 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 168 mm over about 19 wet days; July is the driest, with 0 mm.

0%10%20%30%40%50%60%70%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetDec 18 · 63%Jun 30 · 0%
Rain on a day (%)Rain days
Jan5718
Feb5115
Mar5417
Apr4514
May144
Jun10
Jul00
Aug10
Sep21
Oct113
Nov3510
Dec5919

Monthly rainfall

Over a full year, Shelui collects about 814 mm of rain across 100 wet days — roughly 68 mm in an average month.

It doesn’t fall evenly. December is the wettest month with 168 mm, while July is the driest at just 0 mm. The three wettest months alone bring about 55% of the year’s total.

0255075100125150175200JanFebMarAprMayJunJulAugSepOctNovDec14110414211620101218101168
Rainfall (mm)Rain days
Jan14118
Feb10415
Mar14217
Apr11614
May204
Jun10
Jul00
Aug10
Sep21
Oct183
Nov10110
Dec16819

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Shelui, the average share of the sky covered by clouds shows moderate seasonal variation over the course of the year.

The clearer part of the year begins around June 25 and lasts for 3.6 months, ending around October 13. The clearest month is September, when the sky is clear, mostly clear, or partly cloudy 65% of the time on average.

The cloudier part of the year begins around October 14 and lasts for 6.5 months, ending around April 28. The cloudiest month is January, when it is overcast or mostly cloudy 62% 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 1 · 66%Jan 14 · 37%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan3862
Feb4159
Mar4456
Apr4456
May6040
Jun5545
Jul6139
Aug6238
Sep6535
Oct5050
Nov4456
Dec4258

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, Shelui barely changes through the year: days stay near 12 h 18 min of light in every season.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan12.26:466:59
Feb12.16:547:02
Mar12.06:526:54
Apr11.96:466:41
May11.86:456:34
Jun11.86:516:36
Jul11.86:566:42
Aug11.96:526:43
Sep12.06:386:37
Oct12.16:256:31
Nov12.26:226:35
Dec12.26:326:47

Sunny days

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

Shelui averages about 8 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 5 and 12 days.

The sunnier stretch runs 3.5 months, from around Jun 23 to Oct 8. The sunniest month is July, with roughly 12 sunny days (mixed).

The greyest month is November, down near 5 sunny days — about 55% fewer than the July peak.

051015JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedJul 1112 daysNov 135 days
Sunny daysSky
Jan6Gloomy
Feb6Gloomy
Mar8Gloomy
Apr6Gloomy
May10Mixed
Jun9Mixed
Jul12Mixed
Aug11Mixed
Sep10Mixed
Oct8Gloomy
Nov5Gloomy
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 Shelui, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 5.7 months, from around November 16 to May 9. The muggiest month is January, when the air feels humid, muggy or worse about 81% of the time.

The most comfortable stretch runs from around May 10 to November 15, 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 13 · 17%muggycomfortabledryhumidhumidcomfortablehumid
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan6135229
Feb9175024
Mar6185026
Apr2255023
May2550223
Jun821610
Jul98200
Aug98200
Sep96410
Oct781561
Nov38262610
Dec14164525

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 Shelui is typically calm, near 9 km/h, and varies moderately with the seasons.

The windier part of the year lasts 6.4 months, from around Apr 24 to Nov 5. The windiest month is July, averaging about 12 km/h (light breeze).

The calmer part of the year runs from around Nov 6 to Apr 23, with January the calmest month at about 5 km/h.

05101520JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezeJul 13 · 12 km/hJan 10 · 5 km/h
Wind speed (km/h)Feels
Jan5calm
Feb6calm
Mar7calm
Apr8calm
May10calm
Jun11calm
Jul12light breeze
Aug12calm
Sep12calm
Oct11calm
Nov8calm
Dec6calm

Hazard calendar for Shelui

In seasonPeak

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

Shelui'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 Shelui

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around early May, Shelui 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 Shelui 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 8 · 7.0

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
Jan4.9fair
Feb4.7fair
Mar4.6fair
Apr5.2fair
May6.3good
Jun6.7good
Jul6.9good
Aug6.3good
Sep5.3fair
Oct4.5fair
Nov4.4fair
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 Shelui 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 17 · 8.7

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 Shelui, 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.

Shelui 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, Shelui sees daytime highs around 32°C and nights near 19°C. Pack light clothes and sun protection. About 3 days see rain.

UV index (midday) in Shelui 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 Shelui peaks around March 13 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 at about 10 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 13UV 16Jun 17UV 10
UV index (midday)Level
Jan14Extreme
Feb16Extreme
Mar16Extreme
Apr15Extreme
May12Extreme
Jun10Extreme
Jul11Extreme
Aug12Extreme
Sep13Extreme
Oct14Extreme
Nov14Extreme
Dec13Extreme

Average hourly UV index in Shelui

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
Feb8.57
Mar8.56.5
Apr8.56.5
May7.55.5
Jun7.55.5
Jul7.55.5
Aug86
Sep86
Oct8.56.5
Nov8.56.5
Dec86
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Shelui 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. Shelui banks about 5,062 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)
Jan414
Feb387
Mar430
Apr405
May417
Jun391
Jul391
Aug418
Sep443
Oct487
Nov454
Dec427

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.

Shelui 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 297.2 kWhMay 95.8 kWh
Solar energy (kWh/m²)Level
Jan6.1Intense
Feb6.5Intense
Mar6.4Intense
Apr6.0Intense
May5.9Bright
Jun5.9Bright
Jul6.2Intense
Aug6.6Intense
Sep7.1Intense
Oct7.1Intense
Nov6.4Intense
Dec6.0Bright

Where is Shelui?

Shelui sits at 4.4°S, 34.2°E, 1,091 m above sea level, in Tanzania. The nearest listed city is Kiomboi, 22 km away.

MtinkoSingidaIlongeroKishapu

Topography around Shelui

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

Within 3 km, the terrain around Shelui has only modest variations in elevation — a maximum elevation change of 34 m around an average of 1,090 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 499 m; within 80 km, large variations in elevation — a maximum elevation change of 747 m.

The land around Shelui is covered by grassland (49%) and cropland (38%) within 3 km, cropland (46%) and grassland (33%) within 16 km, and cropland (44%) and grassland (29%) within 80 km.

3 km
34 m
16 km
499 m
80 km
747 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
Nearby: Kiomboi 22 km · Igunga 36 km · Igugunu 53 km · Sepuka 56 km · Mtinko 75 km · Singida 78 km · Ilongero 81 km · Kishapu 91 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 Shelui (-4.3667°, 34.2°, elevation 1,091 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).