Climate and average weather in Oued Rhiou

In Oued Rhiou, the summers are sweltering, dry, and clear and the winters are mild and mostly clear.

Best: early March to early June

Over the course of the year, the temperature in Oued Rhiou typically varies from 6°C to 36°C, and is rarely below 2°C or above 40°C. July is the hottest month of the year, while January is the coldest.

Based on the travel score, the best times of year to visit Oued Rhiou for warm-weather activities are from early March to early June and late September to late November.

Hottest
Jul
36°
Coldest
Jan
Wettest
Nov
59 mm
Driest
Jul
1 mm
Rain / yr
394 mm
66 wet days
Daylight
9.6–14.4 h
shortest–longest
Elevation
97 m
36.0°N
Clearest
Jul
13% cloud

Oued Rhiou 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 March to early June.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 3.1 months, from June 13 to September 13, with daily high temperatures above 31°C. The hottest month of the year in Oued Rhiou is July, with an average high of 36°C and low of 22°C.

The cool season lasts 3.9 months, from November 16 to March 14, with daily high temperatures below 19°C. The coldest month of the year in Oued Rhiou is January, with an average low of 6°C and high of 15°C.

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

10°20°30°40°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan156
Feb166
Mar198
Apr2211
May2714
Jun3219
Jul3622
Aug3622
Sep3119
Oct2615
Nov2010
Dec167

How hot and cold Oued Rhiou 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, Oued Rhiou feels like about 37°C (around July 27). About 87 days a year carry some heat stress, peaking in July.

10°20°30°40°JanFebMarAprMayJunJulAugSepOctNovDec
Feels-like high (°C)Air high (°C)Feels-like low (°C)Air low (°C)
Jan151546
Feb161656
Mar191978
Apr22221011
May27271414
Jun32321919
Jul36362222
Aug36362222
Sep31311919
Oct26261515
Nov19201010
Dec161667

Average hourly temperature in Oued Rhiou

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 July afternoons, near 36°C, and coldest before dawn in January, near C.

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

Oued Rhiou 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
Jan15° / 528.89.84.9
Feb16° / 498.610.65.4
Mar19° / 477.611.76.7
Apr22° / 11°477.412.97.3
May27° / 14°304.813.97.5
Jun32° / 19°61.314.45.2
Jul36° / 22°10.314.22.7
Aug36° / 22°61.213.42.8
Sep31° / 19°193.612.25.4
Oct26° / 15°315.611.17.6
Nov20° / 10°598.610.16.5
Dec16° / 477.79.65.5

Chance of rain

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

Oued Rhiou gets about 394 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 7.0 months, from around Oct 10 to May 10, peaking in January at about 32% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 17.

November is the wettest month by volume, with 59 mm over about 9 wet days; July is the driest, with 1 mm.

0%10%20%30%40%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetJan 25 · 32%Jul 17 · 1%
Rain on a day (%)Rain days
Jan289
Feb319
Mar258
Apr247
May165
Jun41
Jul10
Aug41
Sep114
Oct196
Nov289
Dec258

Monthly rainfall

Over a full year, Oued Rhiou collects about 394 mm of rain across 66 wet days — roughly 33 mm in an average month.

It doesn’t fall evenly. November is the wettest month with 59 mm, while July is the driest at just 1 mm. The three wettest months alone bring about 41% of the year’s total.

0255075JanFebMarAprMayJunJulAugSepOctNovDec524947473061619315947
Rainfall (mm)Rain days
Jan529
Feb499
Mar478
Apr477
May305
Jun61
Jul10
Aug61
Sep194
Oct316
Nov599
Dec478

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In Oued Rhiou, 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 23 and lasts for 4.5 months, ending around October 5. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 93% of the time on average.

The cloudier part of the year begins around October 6 and lasts for 7.5 months, ending around May 22. The cloudiest month is December, when it is overcast or mostly cloudy 44% 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 27 · 95%Dec 7 · 54%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan5842
Feb6139
Mar6238
Apr6535
May7030
Jun8515
Jul937
Aug928
Sep7525
Oct6535
Nov5842
Dec5644

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 8, brings about 14 h 24 min of light; the shortest, around January 1, only 9 h 36 min — a swing of roughly 4 h 48 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan9.88:116:00
Feb10.67:526:30
Mar11.77:146:58
Apr12.96:297:24
May13.95:567:50
Jun14.45:448:09
Jul14.25:558:09
Aug13.46:197:42
Sep12.26:446:57
Oct11.17:096:13
Nov10.17:405:43
Dec9.68:055:40

Sunny days

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

Oued Rhiou averages about 17 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 11 and 27 days.

The sunnier stretch runs 3.8 months, from around May 24 to Sep 17. The sunniest month is July, with roughly 27 sunny days (brilliant).

The greyest month is November, down near 12 sunny days — about 55% fewer than the July peak.

051015202530JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantJul 2527 daysNov 2811 days
Sunny daysSky
Jan12Mixed
Feb12Mixed
Mar14Mixed
Apr13Mixed
May16Bright
Jun23Brilliant
Jul27Brilliant
Aug26Brilliant
Sep18Bright
Oct14Mixed
Nov12Mixed
Dec12Mixed

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 Oued Rhiou, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 4.2 months, from around June 7 to October 13. The muggiest month is August, when the air feels humid, muggy or worse about 57% of the time.

The most comfortable stretch runs from around October 14 to June 6, 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 4 · 100%Aug 19 · 41%muggyhumidcomfortabledrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
Jan1000000
Feb1000000
Mar982000
Apr9010000
May6925600
Jun42361930
Jul243329131
Aug162732214
Sep243331121
Oct50361410
Nov909100
Dec991000

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 Oued Rhiou is steady company: average speeds sit near 8 km/hcalm — in every month of the year, with no meaningful windy or calm season.

051015JanFebMarAprMayJunJulAugSepOctNovDeccalmlight breezeApr 6 · 9 km/hOct 10 · 7 km/h
Wind speed (km/h)Feels
Jan8calm
Feb9calm
Mar9calm
Apr9calm
May8calm
Jun8calm
Jul8calm
Aug7calm
Sep7calm
Oct7calm
Nov8calm
Dec8calm

Hazard calendar for Oued Rhiou

In seasonPeak

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

Oued Rhiou sees seasonal dust haze (July–August), heaviest in July.

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

Best time to visit Oued Rhiou

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around mid March, Oued Rhiou 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 times of year to visit Oued Rhiou for general outdoor tourist activities run from early March to early June and again from late September to late November, with a peak score in the first week of May.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timetravel scoretemperaturecloudsprecipitationMay 6 · 7.8

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
Jan4.9fair
Feb5.4fair
Mar6.7good
Apr7.3good
May7.5good
Jun5.2fair
Jul2.8poor
Aug2.8poor
Sep5.4fair
Oct7.5good
Nov6.6good
Dec5.5fair

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 Oued Rhiou for hot-weather activities run from early May to mid July and again from late August to late October, with a peak score in the first week of June.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebest timebeach/pool scoretemperaturecloudsprecipitationJun 4 · 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 Oued Rhiou, 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 July (highs near 36°C), the essentials are light clothes and sun protection. In the cold season around January (highs near 15°C), pack a warm layer and rain gear.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In July, Oued Rhiou sees daytime highs around 36°C and nights near 22°C. Pack light clothes and sun protection.

Sea temperature near Oued Rhiou

Average ocean temperature at the nearest coast, month by month, banded into swim-comfort zones — the other half of the beach question.

The sea at the nearest coast (about 46 km away) is warmest in August at about 25°C and coldest in February near 15°C.

It's comfortable for a long swim from Jun 8 to Nov 1 — about 4.8 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar15Cool
Apr16Cool
May18Cool
Jun21Refreshing
Jul23Refreshing
Aug25Warm
Sep24Refreshing
Oct21Refreshing
Nov19Cool
Dec17Cool

UV index (midday) in Oued Rhiou 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 Oued Rhiou peaks around July 16 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 2 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 10 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 16UV 10Dec 19UV 2
UV index (midday)Level
Jan3Moderate
Feb3Moderate
Mar7High
Apr6High
May8Very high
Jun9Very high
Jul10Very high
Aug8Very high
Sep7Very high
Oct5Moderate
Nov3Moderate
Dec2Low

Average hourly UV index in Oued Rhiou

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 July the burn window is concentrated in the middle of the day: about 8.5 hours a day reach index 3 (protection recommended), and 5.5 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)
Jan00
Feb2.50
Mar62
Apr6.52
May7.54.5
Jun85
Jul8.55.5
Aug7.54.5
Sep6.53.5
Oct4.50
Nov20
Dec00

Air quality in Oued Rhiou 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 Oued Rhiou is worst in March — around 26 µg/m³ PM2.5 (moderate), about 1.6× the cleanest month (May, 16 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1626 µg/m³May 2116 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb21Moderate
Mar26Moderate
Apr20Moderate
May16Moderate
Jun17Moderate
Jul21Moderate
Aug22Moderate
Sep24Moderate
Oct20Moderate
Nov17Moderate
Dec18Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

Oued Rhiou 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
Jan980
Feb980
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. Oued Rhiou banks about 3,279 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around July.

01,0002,0003,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan13
Feb36
Mar117
Apr190
May325
Jun461
Jul588
Aug587
Sep447
Oct319
Nov145
Dec52

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.

Oued Rhiou receives about 5.1 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.3 and 7.8 kWh/m².

The brighter stretch of the year lasts 6.1 months, from around Mar 21 to Sep 23. The brightest month is June, averaging about 7.6 kWh/m² (intense).

The dimmest month is December, down near 2.4 kWh/m² — roughly 69% less than the June peak.

0123456789JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJun 277.8 kWhDec 162.3 kWh
Solar energy (kWh/m²)Level
Jan2.7Moderate
Feb3.6Moderate
Mar4.8Bright
Apr6.0Bright
May6.9Intense
Jun7.6Intense
Jul7.6Intense
Aug6.9Intense
Sep5.5Bright
Oct4.1Bright
Nov2.8Moderate
Dec2.3Moderate

Where is Oued Rhiou?

Oued Rhiou sits at 36.0°N, 0.9°E, 97 m above sea level, in Algeria. The nearest listed city is Djidiouia, 9.0 km away.

Topography around Oued Rhiou

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

Within 3 km, the terrain around Oued Rhiou has significant variations in elevation — a maximum elevation change of 398 m around an average of 144 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 645 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,952 m.

The land around Oued Rhiou is covered by grassland (40%), cropland (26%) and artificial surfaces (20%) within 3 km, cropland (49%) and grassland (38%) within 16 km, and cropland (34%) and grassland (31%) within 80 km.

3 km
398 m
16 km
645 m
80 km
1,952 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
Nearby: Djidiouia 9.0 km · Mazouna 18 km · Ammi Moussa 20 km · Boukadir 22 km · ’Aïn Merane 23 km · Oued Sly 30 km · Zemoura 30 km · Ech Chettia 40 km

Algeria travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 33% of US
price level, 2025
GDP per capita
$6,051
2025
Happiness
5.7 / 10
World Happiness, 2025
Safe drinking water
69%
of population, 2024
Homicide rate
1.2
per 100k, 2023
Road deaths
20.9
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 468
Religion
Muslim 99%

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 Oued Rhiou (35.9612°, 0.919°, elevation 97 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).