Climate and average weather in Hīrna

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

Best: late October to late December

Over the course of the year, the temperature in Hīrna typically varies from 13°C to 28°C, and is rarely below 11°C or above 31°C. March is the hottest month of the year, while December is the coldest.

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

Hottest
Mar
28°
Coldest
Dec
13°
Wettest
May
139 mm
Driest
Jan
16 mm
Rain / yr
898 mm
141 wet days
Daylight
11.5–12.5 h
shortest–longest
Elevation
1,789 m
9.2°N
Clearest
Dec
36% cloud

Hīrna is town in Northeastern Ethiopia.

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

Hīrna 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 October to late December.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

Temperatures in Hīrna stay fairly even through the year, without a distinct hot or cool season. The warmest month is March, with an average high of 28°C and low of 17°C; the coolest is December, with an average low of 13°C and high of 25°C.

Days typically run about 10°C warmer than nights, with the widest day–night swing (around 12°C) in February.

10°15°20°25°30°35°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan2514
Feb2715
Mar2817
Apr2717
May2717
Jun2717
Jul2617
Aug2617
Sep2617
Oct2616
Nov2514
Dec2513

Average hourly temperature in Hīrna

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 28°C, and coldest before dawn in December, near 13°C.

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

Hīrna 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
Jan25° / 14°163.811.58.2
Feb27° / 15°223.511.77.7
Mar28° / 17°7910.111.96.6
Apr27° / 17°13115.812.25.6
May27° / 17°13919.712.45.1
Jun27° / 17°7015.312.55.8
Jul26° / 17°11820.712.55.3
Aug26° / 17°11819.412.35.6
Sep26° / 17°6613.412.16.3
Oct26° / 16°8511.111.86.7
Nov25° / 14°385.311.67.9
Dec25° / 13°173.111.58.4

Chance of rain

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

Hīrna gets about 898 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 6.7 months, from around Mar 24 to Oct 12, peaking in July at about 73% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Dec 25.

May is the wettest month by volume, with 139 mm over about 20 wet days; January is the driest, with 16 mm.

0%10%20%30%40%50%60%70%80%JanFebMarAprMayJunJulAugSepOctNovDecdrierwetterdriermostly drysome rainoften wetvery wetJul 26 · 73%Dec 25 · 8%
Rain on a day (%)Rain days
Jan124
Feb144
Mar3210
Apr5316
May6320
Jun5215
Jul6621
Aug6219
Sep4613
Oct3511
Nov185
Dec113

Monthly rainfall

Over a full year, Hīrna collects about 898 mm of rain across 141 wet days — roughly 75 mm in an average month.

It doesn’t fall evenly. May is the wettest month with 139 mm, while January is the driest at just 16 mm. The three wettest months alone bring about 43% of the year’s total.

0255075100125150175JanFebMarAprMayJunJulAugSepOctNovDec1622791311397011811866853817
Rainfall (mm)Rain days
Jan164
Feb224
Mar7910
Apr13116
May13920
Jun7015
Jul11821
Aug11819
Sep6613
Oct8511
Nov385
Dec173

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Hīrna, 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 August 9 and lasts for 1.7 months, ending around September 30. The clearest month is December, when the sky is clear, mostly clear, or partly cloudy 79% of the time on average.

The cloudier part of the year begins around March 4 and lasts for 3.5 months, ending around June 18. The cloudiest month is May, when it is overcast or mostly cloudy 49% 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 5 · 81%May 8 · 46%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan7228
Feb7129
Mar6139
Apr5149
May5149
Jun6634
Jul6931
Aug7327
Sep7723
Oct6634
Nov7624
Dec7921

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 May 22, brings about 12 h 30 min of light; the shortest, around January 1, only 11 h 30 min — a swing of roughly 1 hour.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan11.56:396:10
Feb11.76:396:21
Mar11.96:276:23
Apr12.26:106:22
May12.45:596:24
Jun12.56:006:32
Jul12.56:076:36
Aug12.36:116:29
Sep12.16:086:11
Oct11.86:075:54
Nov11.66:145:48
Dec11.56:285:56

Sunny days

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

Hīrna averages about 13 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 7 and 17 days.

The sunnier stretch runs 4.3 months, from around Oct 23 to Mar 2. The sunniest month is December, with roughly 17 sunny days (bright).

The greyest month is April, down near 7 sunny days — about 57% fewer than the December peak.

05101520JanFebMarAprMayJunJulAugSepOctNovDecsunniergreyersunniergloomymixedbrightDec 1717 daysApr 207 days
Sunny daysSky
Jan16Bright
Feb14Mixed
Mar11Mixed
Apr7Gloomy
May8Gloomy
Jun13Mixed
Jul13Mixed
Aug13Mixed
Sep13Mixed
Oct12Mixed
Nov15Bright
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 Hīrna, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 2.9 months, from around March 14 to June 10. The muggiest month is May, when the air feels humid, muggy or worse about 31% of the time.

The most comfortable stretch runs from around June 11 to March 13, and January 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%JanFebMarAprMayJunJulAugSepOctNovDecJan 26 · 100%May 4 · 63%humidcomfortabledrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)
Jan84151
Feb80173
Mar612811
Apr304129
May175231
Jun27667
Jul26722
Aug23707
Sep34597
Oct62327
Nov81145
Dec87112

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 Hīrna is typically calm, near 7 km/h, and varies little with the seasons.

The windier part of the year lasts 4.0 months, from around May 22 to Sep 20. The windiest month is June, averaging about 9 km/h (calm).

The calmer part of the year runs from around Sep 21 to May 21, with March the calmest month at about 6 km/h.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezeJun 30 · 10 km/hMar 17 · 6 km/h
Wind speed (km/h)Feels
Jan6calm
Feb6calm
Mar6calm
Apr6calm
May7calm
Jun9calm
Jul9calm
Aug9calm
Sep7calm
Oct6calm
Nov6calm
Dec6calm

Hazard calendar for Hīrna

In seasonPeak

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

Hīrna's rainy season runs March–October, 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 Hīrna

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late October, Hīrna 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 Hīrna for general outdoor tourist activities is from late October to early March, with a peak score in the last week of December.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationDec 22 · 8.6

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
Jan8.2ideal
Feb7.7ideal
Mar6.6good
Apr5.6good
May5.1fair
Jun5.7good
Jul5.3fair
Aug5.6good
Sep6.3good
Oct6.7good
Nov7.9ideal
Dec8.4ideal

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 Hīrna for hot-weather activities is from mid October to late March, with a peak score in the third week of February.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationFeb 21 · 7.8

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 Hīrna, 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.

Hīrna packs about the same all year — highs hold near 28°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 March, Hīrna sees daytime highs around 28°C and nights near 17°C. Pack light clothes and sun protection. Worth having: rain gear. About 10 days see rain.

UV index (midday) in Hīrna 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 Hīrna peaks around March 18 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near November 23 at about 11 (extreme).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeMar 18UV 16Nov 23UV 11
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar16Extreme
Apr15Extreme
May13Extreme
Jun12Extreme
Jul11Extreme
Aug14Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec11Extreme

Average hourly UV index in Hīrna

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)
Jan7.56
Feb86.5
Mar8.56.5
Apr8.57
May8.56.5
Jun8.56.5
Jul85.5
Aug86.5
Sep86
Oct86
Nov7.55.5
Dec7.55.5

Air quality in Hīrna 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 Hīrna is worst in November — around 28 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateNov 2128 µg/m³Aug 1819 µg/m³
PM2.5 (µg/m³)Level
Jan27Moderate
Feb27Moderate
Mar26Moderate
Apr22Moderate
May21Moderate
Jun24Moderate
Jul23Moderate
Aug19Moderate
Sep21Moderate
Oct27Moderate
Nov28Moderate
Dec28Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Hīrna 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. Hīrna banks about 4,044 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around June.

01,0002,0003,0004,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan293
Feb309
Mar376
Apr360
May381
Jun370
Jul355
Aug347
Sep343
Oct336
Nov295
Dec280

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.

Hīrna receives about 5.9 kWh/m² a day of solar energy — bright — and it stays remarkably steady, holding between 5.5 and 6.3 kWh/m² all year. For solar panels, output here is a flat line, not a seasonal wave.

01234567JanFebMarAprMayJunJulAugSepOctNovDecdimmoderatebrightintenseFeb 286.3 kWhJun 225.5 kWh
Solar energy (kWh/m²)Level
Jan5.7Bright
Feb6.2Intense
Mar6.2Intense
Apr6.0Intense
May5.9Bright
Jun5.5Bright
Jul5.5Bright
Aug5.9Bright
Sep5.9Bright
Oct6.0Bright
Nov5.8Bright
Dec5.6Bright

Where is Hīrna?

Hīrna sits at 9.2°N, 41.1°E, 1,789 m above sea level, in Ethiopia. The nearest listed city is Āsbe Teferī, 29 km away.

Dire Dawa‘Alemaya

Topography around Hīrna

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

Within 3 km, the terrain around Hīrna has large variations in elevation — a maximum elevation change of 601 m around an average of 1,925 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,423 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,667 m.

The land around Hīrna is covered by cropland (57%) and shrubs (36%) within 3 km, shrubs (51%) and cropland (46%) within 16 km, and shrubs (56%) and grassland (20%) within 80 km.

3 km
601 m
16 km
1,423 m
80 km
2,667 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
Nearby: Āsbe Teferī 29 km · Mī’ēso 38 km · Deder 39 km · Bedēsa 49 km · Chelenko 54 km · Gelemso 78 km · Dire Dawa 94 km · ‘Alemaya 102 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 Hīrna (9.2167°, 41.1°, elevation 1,789 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).