Climate and average weather in El Alia

In El Alia, the summers are muggy, warm, dry, and clear and the winters are cool, breezy, and mostly clear.

Best: mid May to early October

Over the course of the year, the temperature in El Alia typically varies from 11°C to 27°C, and is rarely below 9°C or above 29°C. August is the hottest month of the year, while February is the coldest.

Based on the travel score, the best time of year to visit El Alia for warm-weather activities is from mid May to early October.

Hottest
Aug
27°
Coldest
Feb
11°
Wettest
Dec
84 mm
Driest
Jul
1 mm
Rain / yr
543 mm
79 wet days
Daylight
9.4–14.6 h
shortest–longest
Elevation
100 m
37.2°N
Clearest
Jul
8% cloud

El Alia 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 mid May to early October.

Temperature through the year

Average highAverage lowShaded bands: 10–90% of days

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

The hot season lasts 3.4 months, from June 20 to September 29, with daily high temperatures above 24°C. The hottest month of the year in El Alia is August, with an average high of 27°C and low of 24°C.

The cool season lasts 4.1 months, from December 6 to April 8, with daily high temperatures below 16°C. The coldest month of the year in El Alia is February, with an average low of 11°C and high of 14°C.

Days typically run about 3°C warmer than nights year-round.

10°15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDec
Avg high (°C)Avg low (°C)
Jan1412
Feb1411
Mar1512
Apr1714
May2017
Jun2320
Jul2623
Aug2724
Sep2522
Oct2220
Nov1916
Dec1613

Average hourly temperature in El Alia

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 27°C, and coldest before dawn in February, near 11°C.

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

El Alia 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
Jan14° / 12°8110.99.74.3
Feb14° / 11°701010.64.2
Mar15° / 12°527.911.75.1
Apr17° / 14°467.512.96.1
May20° / 17°254.1147.6
Jun23° / 20°81.314.59.0
Jul26° / 23°10.314.39.3
Aug27° / 24°61.313.48.7
Sep25° / 22°385.512.38.0
Oct22° / 20°557.7117.4
Nov19° / 16°7810.8106.1
Dec16° / 13°8411.99.54.8

Chance of rain

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

El Alia gets about 543 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 6.9 months, from around Sep 29 to Apr 26, peaking in November at about 40% chance on a given day. The drier stretch runs the rest of the year, bottoming out around Jul 2.

December is the wettest month by volume, with 84 mm over about 12 wet days; July is the driest, with 1 mm.

0%10%20%30%40%50%JanFebMarAprMayJunJulAugSepOctNovDecwetterdrierwettermostly drysome rainoften wetvery wetNov 30 · 40%Jul 2 · 1%
Rain on a day (%)Rain days
Jan3611
Feb3610
Mar268
Apr248
May134
Jun41
Jul10
Aug41
Sep186
Oct258
Nov3511
Dec3812

Monthly rainfall

Over a full year, El Alia collects about 543 mm of rain across 79 wet days — roughly 45 mm in an average month.

It doesn’t fall evenly. December is the wettest month with 84 mm, while July is the driest at just 1 mm. The three wettest months alone bring about 45% of the year’s total.

0255075100JanFebMarAprMayJunJulAugSepOctNovDec817052462581638557884
Rainfall (mm)Rain days
Jan8111
Feb7010
Mar528
Apr468
May254
Jun81
Jul10
Aug61
Sep386
Oct558
Nov7811
Dec8412

Clouds and sunshine

ClearMostly clearPartly cloudyMostly cloudyOvercast

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

In El Alia, 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 6 and lasts for 4.5 months, ending around September 20. The clearest month is July, when the sky is clear, mostly clear, or partly cloudy 98% of the time on average.

The cloudier part of the year begins around September 21 and lasts for 7.5 months, ending around May 5. The cloudiest month is January, when it is overcast or mostly cloudy 38% 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 23 · 99%Dec 27 · 60%clearmostly clearpartly cloudymostly cloudyovercastcloudierclearercloudier
Clearer (%)Cloudier (%)
Jan6238
Feb6436
Mar6832
Apr7030
May7525
Jun8812
Jul982
Aug937
Sep7822
Oct6931
Nov6436
Dec6238

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 36 min of light; the shortest, around December 18, only 9 h 24 min — a swing of roughly 5 h 12 min.

12 AM4 AM8 AM12 PM4 PM8 PM12 AMJanFebMarAprMayJunJulAugSepOctNovDec
Daylight (h)Sunrise (AM)Sunset (PM)
Jan9.77:385:20
Feb10.67:175:52
Mar11.76:386:21
Apr12.95:516:49
May14.05:177:16
Jun14.55:047:36
Jul14.35:167:35
Aug13.45:417:07
Sep12.36:076:21
Oct11.06:345:36
Nov10.07:065:04
Dec9.57:325:00

Sunny days

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

El Alia averages about 17 sunny days a month — counting the days the sky stays clear or mostly clear — with a clear seasonal swing between 10 and 29 days.

The sunnier stretch runs 4.8 months, from around May 3 to Sep 26. The sunniest month is July, with roughly 29 sunny days (brilliant).

The greyest month is January, down near 11 sunny days — about 62% fewer than the July peak.

05101520253035JanFebMarAprMayJunJulAugSepOctNovDecgreyersunniergreyergloomymixedbrightbrilliantJul 2329 daysJan 2410 days
Sunny daysSky
Jan11Mixed
Feb11Mixed
Mar15Mixed
Apr16Bright
May19Bright
Jun23Brilliant
Jul29Brilliant
Aug27Brilliant
Sep19Bright
Oct16Bright
Nov12Mixed
Dec11Mixed

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 El Alia, how humid it feels changes dramatically over the year.

The more humid part of the year lasts 5.4 months, from around May 21 to November 1. The muggiest month is July, when the air feels humid, muggy or worse about 99% of the time.

The most comfortable stretch runs from around November 2 to May 20, and March 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%JanFebMarAprMayJunJulAugSepOctNovDecMar 30 · 100%Jul 31 · 0%oppressivecomfortablehumidmuggydrycomfortablehumidcomfortable
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
Jan9820000
Feb9910000
Mar9460000
Apr65341000
May194831200
Jun112414060
Jul011248371
Aug00830565
Sep172637271
Oct824382740
Nov473615200
Dec88110000

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 El Alia is typically light breeze, near 20 km/h, and varies moderately with the seasons.

The windier part of the year lasts 6.2 months, from around Nov 5 to May 12. The windiest month is February, averaging about 22 km/h (breezy).

The calmer part of the year runs from around May 13 to Nov 4, with August the calmest month at about 17 km/h.

051015202530JanFebMarAprMayJunJulAugSepOctNovDecwindiercalmerwindiercalmlight breezebreezywindyFeb 2 · 23 km/hAug 17 · 16 km/h
Wind speed (km/h)Feels
Jan22breezy
Feb22breezy
Mar22breezy
Apr21breezy
May19light breeze
Jun18light breeze
Jul18light breeze
Aug17light breeze
Sep17light breeze
Oct18light breeze
Nov21breezy
Dec22breezy

Hazard calendar for El Alia

In seasonPeak

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

El Alia sees seasonal dust haze (June), heaviest in June.

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

Best time to visit El Alia

TravelBeach/poolTemperatureCloudsPrecipitation

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

Around late September, El Alia is still near the tail of its best-weather window — great conditions with the peak-season crowds already thinning.

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 El Alia for general outdoor tourist activities is from mid May to early October, with a peak score in the last week of June.

0246810JanFebMarAprMayJunJulAugSepOctNovDecbest timetravel scoretemperaturecloudsprecipitationJun 28 · 9.5

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
Jan4.3fair
Feb4.2fair
Mar5.1fair
Apr6.1good
May7.6ideal
Jun9.0ideal
Jul9.3ideal
Aug8.7ideal
Sep8.0ideal
Oct7.4good
Nov6.1good
Dec4.9fair

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 El Alia for hot-weather activities is from mid June to mid September, with a peak score in the last week of July.

024681012JanFebMarAprMayJunJulAugSepOctNovDecbest timebeach/pool scoretemperaturecloudsprecipitationJul 30 · 8.9

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 El Alia, 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 27°C), the essentials are light clothes and sun protection. In the cold season around February (highs near 14°C), pack a warm layer, rain gear and a windbreaker.

Light clothing
Warm layer
Winter coat
Rain gear
Sun protection
Windbreaker

In August, El Alia sees daytime highs around 27°C and nights near 24°C. Pack sun protection. Worth having: light clothes.

Sea temperature near El Alia

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 24 km away) is warmest in August at about 26°C and coldest in February near 15°C.

It's comfortable for a long swim from Jun 5 to Nov 14 — about 5.4 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Bracing
Mar15Bracing
Apr16Cool
May18Cool
Jun21Refreshing
Jul24Warm
Aug26Warm
Sep25Warm
Oct23Refreshing
Nov20Cool
Dec17Cool

UV index (midday) in El Alia 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 El Alia peaks around July 17 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (low).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateModerateHighVery highHighModerateJul 17UV 10Dec 21UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar6High
Apr4Moderate
May6High
Jun8Very high
Jul10Extreme
Aug8Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec2Low

Average hourly UV index in El Alia

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 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
Mar5.50
Apr4.50
May71.5
Jun7.54
Jul8.56
Aug7.54
Sep6.52.5
Oct4.50
Nov10
Dec00

Air quality in El Alia 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 El Alia is worst in September — around 20 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 1919 µg/m³Jul 1715 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb18Moderate
Mar19Moderate
Apr18Moderate
May17Moderate
Jun15Moderate
Jul15Moderate
Aug15Moderate
Sep20Moderate
Oct18Moderate
Nov16Moderate
Dec15Moderate
Almanac & agriculture

Growing season

Chance of a frost-free dayFrost-free year round

El Alia 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. El Alia banks about 3,101 degree days a year, and the running total — which growers use to time plantings and predict maturity — climbs fastest around August.

01,0002,0003,000JanFebMarAprMayJunJulAugSepOctNovDec
Growing degree days (°C·days)
Jan93
Feb74
Mar116
Apr164
May256
Jun352
Jul449
Aug482
Sep412
Oct343
Nov222
Dec138

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.

El Alia receives about 4.9 kWh/m² a day of solar energy on average — bright — with a clear seasonal swing between 2.1 and 7.6 kWh/m².

The brighter stretch of the year lasts 6.1 months, from around Mar 19 to Sep 19. The brightest month is July, averaging about 7.5 kWh/m² (intense).

The dimmest month is December, down near 2.2 kWh/m² — roughly 71% less than the July peak.

0123456789JanFebMarAprMayJunJulAugSepOctNovDecdimmerbrighterdimmerdimmoderatebrightintenseJul 27.6 kWhDec 172.1 kWh
Solar energy (kWh/m²)Level
Jan2.4Moderate
Feb3.3Moderate
Mar4.7Bright
Apr6.0Bright
May6.8Intense
Jun7.4Intense
Jul7.5Intense
Aug6.6Intense
Sep5.0Bright
Oct3.8Moderate
Nov2.6Moderate
Dec2.1Moderate

Where is El Alia?

El Alia sits at 37.2°N, 10.0°E, 100 m above sea level, in Tunisia. The nearest listed city is Rass el Djebel, 10 km away.

Topography around El Alia

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

Within 3 km, the terrain around El Alia has significant variations in elevation — a maximum elevation change of 263 m around an average of 87 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 415 m; within 80 km, large variations in elevation — a maximum elevation change of 726 m.

The land around El Alia is covered by cropland (47%) and grassland (29%) within 3 km, cropland (36%), water (30%) and grassland (20%) within 16 km, and water (45%) and cropland (28%) within 80 km.

3 km
263 m
16 km
415 m
80 km
726 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
Nearby: Rass el Djebel 10 km · Menzel Jemil 13 km · Galaat el Andeless 14 km · Menzel Abderhaman 17 km · Bizerte 18 km · Menzel Bourguiba 22 km · Tinja 24 km · Douar Tindja 25 km

Tunisia travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 29% of US
price level, 2025
GDP per capita
$4,657
2025
Happiness
4.8 / 10
World Happiness, 2025
Safe drinking water
65%
of population, 2024
Homicide rate
4.7
per 100k, 2020
Road deaths
16.5
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Low
EF EPI 498
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 El Alia (37.1691°, 10.0348°, elevation 100 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).