Climate and average weather in Nejo

In Nejo, the summers are hot, fairly dry, and partly cloudy and the winters are warm and mostly cloudy.

Best: early November to late December

Over the course of the year, the temperature in Nejo typically varies from 15°C to 31°C, and is rarely below 13°C or above 33°C. March is the hottest month of the year, while July is the coldest.

Based on the travel score, the best times of year to visit Nejo for warm-weather activities are from early January to late January and early November to late December.

Hottest
Mar
31°
Coldest
Jul
15°
Wettest
Jun
518 mm
Driest
Jan
3 mm
Rain / yr
2837 mm
197 wet days
Daylight
11.4–12.6 h
shortest–longest
Elevation
1,888 m
9.5°N
Clearest
Dec
39% cloud

Nejo is town in Western Ethiopia.

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

Nejo 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 November to late December.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 3.0 months, from January 21 to April 22, with daily high temperatures above 29°C. The hottest month of the year in Nejo is March, with an average high of 31°C and low of 18°C.

The cool season lasts 3.2 months, from June 17 to September 21, with daily high temperatures below 25°C. The coldest month of the year in Nejo is July, with an average low of 15°C and high of 23°C.

Days typically run about 11°C warmer than nights, with the widest day–night swing (around 14°C) in February.

10°15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2915
Feb3117
Mar3118
Apr3018
May2717
Jun2516
Jul2315
Aug2315
Sep2416
Oct2515
Nov2615
Dec2815

Average hourly temperature in Nejo

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 March afternoons, near 31°C, and coldest before dawn in July, near 15°C.

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

Nejo 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
Jan29° / 15°30.811.56.9
Feb31° / 17°51.111.75.8
Mar31° / 18°314.711.95.1
Apr30° / 18°11111.212.24.8
May27° / 17°36325.412.44.2
Jun25° / 16°51829.812.53.6
Jul23° / 15°47630.612.53.6
Aug23° / 15°48130.812.33.5
Sep24° / 16°49229.612.13.7
Oct25° / 15°30425.311.84.5
Nov26° / 15°497.111.67.2
Dec28° / 15°4111.58.0

Chance of rain

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

Nejo gets about 2837 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 6.2 months, from around Apr 28 to Nov 1, peaking in August at about 100% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Feb 1.

June is the wettest month by volume, with 518 mm over about 30 wet days; January is the driest, with 3 mm.

0%10%20%30%40%50%60%70%80%90%100%110%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetAug 23 · 100%Feb 1 · 1%
Rain on a day (%)Rain days
Jan31
Feb41
Mar165
Apr3811
May8125
Jun9830
Jul9931
Aug10031
Sep9830
Oct8025
Nov267
Dec31

Monthly rainfall

Over a full year, Nejo collects about 2837 mm of rain across 197 wet days — roughly 236 mm in an average month.

It doesn’t fall evenly. June is the wettest month with 518 mm, while January is the driest at just 3 mm. The three wettest months alone bring about 53% of the year’s total.

050100150200250300350400450500550600JanFebMarAprMayJunJulAugSepOctNovDec3531111363518476481492304494
Rainfall (mm)Rain days
Jan31
Feb51
Mar315
Apr11111
May36325
Jun51830
Jul47631
Aug48131
Sep49230
Oct30425
Nov497
Dec41

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Nejo, 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 October 25 and lasts for 5.9 months, ending around April 23. The clearest month is December, when the sky is clear, mostly clear, or partly cloudy 81% of the time on average.

The cloudier part of the year begins around April 24 and lasts for 6.0 months, ending around October 24. The cloudiest month is August, when it is overcast or mostly cloudy 95% 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%JanFebMarAprMayJunJulAugSepOctNovDecDec 15 · 83%Aug 2 · 3%clearmostly clearpartly cloudymostly cloudyovercastclearercloudierclearer
Clearer (%)Cloudier (%)
Jan7030
Feb7030
Mar6238
Apr4753
May2575
Jun1387
Jul595
Aug595
Sep1486
Oct3466
Nov6634
Dec8119

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. The longest day, around June 16, brings about 12 h 36 min of light; the shortest, around December 15, only 11 h 24 min — a swing of roughly 1 h 12 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan11.57:026:32
Feb11.77:026:43
Mar11.96:506:46
Apr12.26:326:45
May12.46:216:47
Jun12.56:226:55
Jul12.56:286:59
Aug12.36:336:52
Sep12.16:316:34
Oct11.86:296:17
Nov11.66:376:10
Dec11.56:516:18

Sunny days

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

Nejo averages about 7 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 0 and 18 days.

The sunnier stretch runs 5.6 months, from around Oct 29 to Apr 15. The sunniest month is December, with roughly 17 sunny days (bright).

The greyest month is July, down near 0 sunny days — about 100% fewer than the December peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedbrightDec 1718 daysJul 60 days
Sunny daysSky
Jan15Mixed
Feb13Mixed
Mar10Mixed
Apr7Gloomy
May2Gloomy
Jun0Gloomy
Jul0Gloomy
Aug0Gloomy
Sep1Gloomy
Oct4Gloomy
Nov12Mixed
Dec17Bright

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

The more humid part of the year lasts 6.1 months, from around April 30 to November 2. The muggiest month is September, when the air feels humid, muggy or worse about 96% of the time.

The most comfortable stretch runs from around November 3 to April 29, and January is the most comfortable month — the air is dry or comfortable 100% of the time.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDecJan 27 · 100%Sep 15 · 2%humidcomfortabledrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)
Jan9820
Feb9640
Mar84124
Apr502524
May81477
Jun0595
Jul01981
Aug01486
Sep0496
Oct41680
Nov433819
Dec9270

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 Nejo is steady company: average speeds sit near 5 km/hcalm — in every month of the year, with no meaningful windy or calm season.

0510JanFebMarAprMayJunJulAugSepOctNovDeccalmApr 7 · 6 km/hSep 12 · 4 km/h
Wind speed (km/h)Feels
Jan6calm
Feb6calm
Mar6calm
Apr6calm
May5calm
Jun4calm
Jul4calm
Aug4calm
Sep4calm
Oct4calm
Nov4calm
Dec5calm

Hazard calendar for Nejo

In seasonPeak

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

Nejo's monsoon runs May–October, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Best time to visit Nejo

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid November, Nejo 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 Nejo for general outdoor tourist activities is from early November to late January, with a peak score in the second week of December.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationDec 14 · 8.2

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
Jan6.9good
Feb5.8good
Mar5.1fair
Apr4.8fair
May4.2fair
Jun3.6fair
Jul3.6fair
Aug3.5fair
Sep3.7fair
Oct4.6fair
Nov7.1good
Dec8.0ideal

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 Nejo for hot-weather activities is from mid November to early April, with a peak score in the third week of January.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationJan 21 · 8.6

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 Nejo, 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.

For a warm-season trip around March (highs near 31°C), the essentials are light clothes and sun protection. In the cold season around July (highs near 23°C), pack light clothes, rain gear and sun protection.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In March, Nejo sees daytime highs around 31°C and nights near 18°C. Pack light clothes and sun protection. About 5 days see rain.

UV index (midday) in Nejo 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 Nejo peaks around March 21 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 11 at about 10 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highMar 21UV 15Dec 11UV 10
UV index (midday)Level
Jan12Extreme
Feb12Extreme
Mar15Extreme
Apr14Extreme
May12Extreme
Jun12Extreme
Jul12Extreme
Aug14Extreme
Sep12Extreme
Oct12Extreme
Nov10Very high
Dec10Very high

Average hourly UV index in Nejo

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 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)
Jan7.55.5
Feb7.55.5
Mar86.5
Apr86.5
May86
Jun86
Jul8.56.5
Aug8.56.5
Sep86
Oct7.55.5
Nov75
Dec75

Air quality in Nejo 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 Nejo is worst in February — around 54 µg/m³ PM2.5 (poor), about 3.8× the cleanest month (May, 14 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateFeb 1653 µg/m³May 2015 µg/m³
PM2.5 (µg/m³)Level
Jan41Poor
Feb54Poor
Mar44Poor
Apr28Moderate
May14Moderate
Jun20Moderate
Jul20Moderate
Aug16Moderate
Sep15Moderate
Oct18Moderate
Nov23Moderate
Dec25Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Nejo 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. Nejo banks about 4,177 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around March.

01,0002,0003,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan377
Feb386
Mar452
Apr420
May371
Jun308
Jul287
Aug290
Sep297
Oct319
Nov318
Dec352

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.

Nejo receives about 5.7 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 4.6 and 6.7 kWh/m².

The brighter stretch of the year lasts 4.7 months, from around Dec 23 to May 14. The brightest month is March, averaging about 6.6 kWh/m² (intense).

The dimmest month is July, down near 4.7 kWh/m² — roughly 29% less than the March peak.

012345678JanFebMarAprMayJunJulAugSepOctNovDecbrighterdimmerdimmoderatebrightintenseMar 286.7 kWhJul 244.6 kWh
Solar energy (kWh/m²)Level
Jan6.0Bright
Feb6.4Intense
Mar6.7Intense
Apr6.4Intense
May5.7Bright
Jun5.1Bright
Jul4.7Bright
Aug5.0Bright
Sep5.8Bright
Oct5.8Bright
Nov5.6Bright
Dec5.7Bright

Where is Nejo?

Nejo sits at 9.5°N, 35.5°E, 1,888 m above sea level, in Ethiopia. The nearest listed city is Gimbi, 52 km away.

ĀsosaNek’emtēGutinĀyanaDembī Dolo

Topography around Nejo

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

Within 3 km, the terrain around Nejo has significant variations in elevation — a maximum elevation change of 259 m around an average of 1,857 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 759 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,907 m.

The land around Nejo is covered by trees (47%), cropland (22%) and grassland (20%) within 3 km, cropland (38%), trees (35%) and grassland (24%) within 16 km, and trees (49%) and cropland (27%) within 80 km.

3 km
259 m
16 km
759 m
80 km
1,907 m
treesshrubsgrasslandcroplandartificial surfaces
Nearby: Gimbi 52 km · Mendī 55 km · Bambesi 89 km · Āsosa 123 km · Nek’emtē 124 km · Gutin 125 km · Āyana 130 km · Dembī Dolo 132 km

Ethiopia travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type C / E / F / L
220 V · 50 Hz
Prices
≈ 37% of US
price level, 2025
GDP per capita
$933
2025
Happiness
4.0 / 10
World Happiness, 2025
Safe drinking water
14%
of population, 2024
Homicide rate
8.5
per 100k, 2012
Road deaths
28.2
per 100k/yr, 2019
Income group
Low
World Bank
English
Low
EF EPI 499
Religion
Ethiopian Orthodox 44%Muslim 31%Protestant 23%other 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 Nejo (9.5°, 35.5°, elevation 1,888 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).