Climate and average weather in Ar Rumaythah

In Ar Rumaythah, the summers are sweltering, dry, and clear and the winters are mild and mostly clear.

Best: early November to late March

Over the course of the year, the temperature in Ar Rumaythah typically varies from 8°C to 46°C, and is rarely below 3°C or above 50°C. August is the hottest month of the year, while January is the coldest.

Based on the travel score, the best time of year to visit Ar Rumaythah for warm-weather activities is from early November to late March.

Hottest
Aug
46°
Coldest
Jan
Wettest
Jan
22 mm
Driest
Jun
0 mm
Rain / yr
96 mm
19 wet days
Daylight
9.9–14.1 h
shortest–longest
Elevation
18 m
31.5°N
Clearest
Jul
2% cloud

Ar Rumaythah is city in Al Muthanna Governorate, Iraq.

Founded
1820

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

Ar Rumaythah 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 March.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 4.6 months, from May 16 to October 2, with daily high temperatures above 39°C. The hottest month of the year in Ar Rumaythah is August, with an average high of 46°C and low of 31°C.

The cool season lasts 3.1 months, from November 25 to February 25, with daily high temperatures below 23°C. The coldest month of the year in Ar Rumaythah is January, with an average low of 8°C and high of 18°C.

Days typically run about 13°C warmer than nights, with the widest day–night swing (around 15°C) in September.

10°20°30°40°50°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan188
Feb2110
Mar2714
Apr3320
May3925
Jun4429
Jul4631
Aug4631
Sep4327
Oct3622
Nov2614
Dec209

How hot and cold Ar Rumaythah 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, Ar Rumaythah feels like about 46°C (around July 27). About 199 days a year carry some heat stress, and 142 of them tip into dangerous heat (feels-like above 39°C), peaking in July.

10°20°30°40°50°JanFebMarAprMayJunJulAugSepOctNovDecdangerous heat
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan181858
Feb2121810
Mar27271414
Apr33332020
May39392525
Jun44442929
Jul46463131
Aug46463131
Sep42432727
Oct36362222
Nov26261414
Dec202079

Average hourly temperature in Ar Rumaythah

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 August afternoons, near 46°C, and coldest before dawn in January, near C.

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

Ar Rumaythah 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
Jan18° / 223.710.27.2
Feb21° / 10°122.710.88.2
Mar27° / 14°122.411.88.1
Apr33° / 20°102.312.74.5
May39° / 25°40.713.60.8
Jun44° / 29°00140.0
Jul46° / 31°0013.80.0
Aug46° / 31°0013.20.0
Sep43° / 27°00.112.20.0
Oct36° / 22°30.711.22.8
Nov26° / 14°172.810.47.9
Dec20° / 173.4107.6

Chance of rain

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

Ar Rumaythah gets about 96 mm of precipitation a year. On a typical day the chance of rain is mostly dry, but that rises and falls sharply with the seasons.

The wetter season lasts 6.2 months, from around Oct 28 to May 4, peaking in December at about 13% chance on a given day. The drier stretch runs the rest of the year, bottoming out around May 29.

January is the wettest month by volume, with 22 mm over about 4 wet days; June is the driest, with 0 mm.

0%10%20%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainDec 8 · 13%May 29 · 0%
Rain on a day (%)Rain days
Jan114
Feb103
Mar82
Apr82
May21
Jun00
Jul00
Aug00
Sep00
Oct21
Nov93
Dec113

Monthly rainfall

Over a full year, Ar Rumaythah collects about 96 mm of rain across 19 wet days — roughly 8 mm in an average month.

It doesn’t fall evenly. January is the wettest month with 22 mm, while June is the driest at just 0 mm. The three wettest months alone bring about 58% of the year’s total.

02550JanFebMarAprMayJunJulAugSepOctNovDec221212104031717
Rainfall (mm)Rain days
Jan224
Feb123
Mar122
Apr102
May41
Jun00
Jul00
Aug00
Sep00
Oct31
Nov173
Dec173

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Ar Rumaythah, 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 May 19 and lasts for 5.2 months, ending around October 22. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 100% of the time on average.

The cloudier part of the year begins around October 23 and lasts for 6.8 months, ending around May 18. The cloudiest month is December, when it is overcast or mostly cloudy 27% 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 4 · 100%Dec 31 · 70%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan7426
Feb8119
Mar8119
Apr8020
May8515
Jun982
Jul1000
Aug1000
Sep991
Oct9010
Nov7723
Dec7327

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 19, brings about 14 h 06 min of light; the shortest, around December 18, only 9 h 54 min — a swing of roughly 4 h 12 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan10.27:045:13
Feb10.86:485:39
Mar11.86:166:02
Apr12.75:366:23
May13.65:076:43
Jun14.04:587:01
Jul13.85:097:01
Aug13.25:286:38
Sep12.25:485:59
Oct11.26:085:21
Nov10.46:334:55
Dec10.06:574:54

Sunny days

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

Ar Rumaythah averages about 24 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 18 and 30 days.

The sunnier stretch runs 5.1 months, from around May 19 to Oct 19. The sunniest month is June, with roughly 29 sunny days (brilliant).

The greyest month is December, down near 19 sunny days — about 37% fewer than the June peak.

05101520253035JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantJun 2730 daysDec 3118 days
Sunny daysSky
Jan19Bright
Feb19Bright
Mar21Bright
Apr20Bright
May23Bright
Jun29Brilliant
Jul31Brilliant
Aug31Brilliant
Sep29Brilliant
Oct25Brilliant
Nov19Bright
Dec19Bright

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 Ar Rumaythah, the air stays dry or comfortable essentially all year. Even in November, the muggiest month, it feels humid or worse only about 5% of the time — humidity is not something you need to plan around here.

0%10%20%30%40%50%60%70%80%90%100%JanFebMarAprMayJunJulAugSepOctNovDeccomfortabledry
Dry (%)Comfortable (%)Humid (%)Muggy (%)
Jan99100
Feb99100
Mar97300
Apr93520
May96310
Jun100000
Jul98200
Aug96400
Sep98200
Oct89731
Nov851050
Dec97300

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 Ar Rumaythah is typically light breeze, near 16 km/h, and varies moderately with the seasons.

The windier part of the year lasts 4.2 months, from around May 14 to Sep 18. The windiest month is July, averaging about 21 km/h (breezy).

The calmer part of the year runs from around Sep 19 to May 13, with November the calmest month at about 13 km/h.

0510152025JanFebMarAprMayJunJulAugSepOctNovDeccalmerwindiercalmercalmlight breezebreezyJul 7 · 21 km/hNov 21 · 13 km/h
Wind speed (km/h)Feels
Jan13light breeze
Feb14light breeze
Mar15light breeze
Apr15light breeze
May16light breeze
Jun20light breeze
Jul21breezy
Aug19light breeze
Sep16light breeze
Oct13light breeze
Nov13light breeze
Dec13light breeze

Hazard calendar for Ar Rumaythah

In seasonPeak

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

Ar Rumaythah sees seasonal dust haze (February–October), heaviest in May.

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

Best time to visit Ar Rumaythah

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid November, Ar Rumaythah 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 Ar Rumaythah for general outdoor tourist activities is from early November to late March, with a peak score in the first week of March.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationMar 2 · 8.8

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
Jan7.3good
Feb8.2ideal
Mar8.1ideal
Apr4.5fair
May0.9poor
Jun0.0poor
Jul0.0poor
Aug0.0poor
Sep0.1poor
Oct2.9poor
Nov7.8ideal
Dec7.6ideal

The beach/pool score favors clear, rainless days with daytime highs between 24°C and 34°C. Based on this score, the best times of year to visit Ar Rumaythah for hot-weather activities run from late February to late April and again from late October to late November, with a peak score in the last week of March.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationMar 29 · 8.5

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 Ar Rumaythah, 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 August (highs near 46°C), the essentials are light clothes and sun protection. In the cold season around January (highs near 18°C), pack a warm layer.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In August, Ar Rumaythah sees daytime highs around 46°C and nights near 31°C. Pack light clothes and sun protection.

UV index (midday) in Ar Rumaythah 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 Ar Rumaythah peaks around June 14 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near January 13 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highVery highHighModerateJun 14UV 10Jan 13UV 3
UV index (midday)Level
Jan3Moderate
Feb4Moderate
Mar5High
Apr6High
May8Very high
Jun11Extreme
Jul6High
Aug9Very high
Sep4Moderate
Oct6High
Nov4Moderate
Dec3Moderate

Average hourly UV index in Ar Rumaythah

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 June the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 6 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)
Jan00
Feb3.50
Mar50
Apr60
May7.54
Jun8.56
Jul6.51.5
Aug7.54.5
Sep4.50
Oct5.50
Nov40
Dec20

Air quality in Ar Rumaythah 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 Ar Rumaythah is worst in May — around 76 µg/m³ PM2.5 (unhealthy), and holds fairly steady the rest of the year.

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyUnhealthyMay 1475 µg/m³Nov 1753 µg/m³
PM2.5 (µg/m³)Level
Jan60Unhealthy
Feb62Unhealthy
Mar75Unhealthy
Apr72Unhealthy
May76Unhealthy
Jun67Unhealthy
Jul65Unhealthy
Aug62Unhealthy
Sep61Unhealthy
Oct62Unhealthy
Nov52Poor
Dec60Unhealthy
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Ar Rumaythah 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
Jan990
Feb1000
Mar1000
Apr1000
May1000
Jun1000
Jul1000
Aug1000
Sep1000
Oct1000
Nov1000
Dec990

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. Ar Rumaythah banks about 6,054 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around July.

02,0004,0006,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan85
Feb150
Mar321
Apr487
May692
Jun797
Jul882
Aug881
Sep744
Oct580
Nov301
Dec134

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.

Ar Rumaythah receives about 5.8 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 3.2 and 7.8 kWh/m².

The brighter stretch of the year lasts 6.5 months, from around Mar 16 to Sep 28. The brightest month is June, averaging about 7.8 kWh/m² (intense).

The dimmest month is December, down near 3.2 kWh/m² — roughly 59% less than the June peak.

0123456789JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJun 197.8 kWhDec 243.2 kWh
Solar energy (kWh/m²)Level
Jan3.5Moderate
Feb4.5Bright
Mar5.8Bright
Apr6.8Intense
May7.5Intense
Jun7.8Intense
Jul7.7Intense
Aug7.3Intense
Sep6.3Intense
Oct5.0Bright
Nov3.7Moderate
Dec3.2Moderate

Where is Ar Rumaythah?

Ar Rumaythah sits at 31.5°N, 45.2°E, 18 m above sea level, in Iraq. The nearest listed city is As Samawah, 23 km away.

Nāḩiyat ash ShināfīyahAl Diwaniyah‘AfakNahiyat GhammasAl MishkhābAsh ShāmīyahQal‘at Sukkar

Topography around Ar Rumaythah

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

Within 3 km, the terrain around Ar Rumaythah has only modest variations in elevation — a maximum elevation change of 8 m around an average of 13 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 12 m; within 80 km, only modest variations in elevation — a maximum elevation change of 159 m.

The land around Ar Rumaythah is covered by cropland (36%), artificial surfaces (25%) and bare terrain (24%) within 3 km, cropland (50%) and bare terrain (41%) within 16 km, and bare terrain (61%) and cropland (35%) within 80 km.

3 km
8 m
16 km
12 m
80 km
159 m
treesshrubscroplandartificial surfacesbare terrainwater
Nearby: As Samawah 23 km · Nāḩiyat ash Shināfīyah 53 km · Al Diwaniyah 58 km · ‘Afak 60 km · Nahiyat Ghammas 60 km · Al Mishkhāb 74 km · Ash Shāmīyah 75 km · Qal‘at Sukkar 90 km

Iraq travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / D / G
230 V · 50 Hz
Prices
≈ 38% of US
price level, 2025
GDP per capita
$5,410
2025
Happiness
5.2 / 10
World Happiness, 2025
Safe drinking water
60%
of population, 2024
Homicide rate
9.5
per 100k, 2013
Road deaths
27.3
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very low
EF EPI 406
Religion
Christian 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 Ar Rumaythah (31.5284°, 45.2038°, elevation 18 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).