Mahdia weather in September

In September, Mahdia sees average daytime highs of 30°C and overnight lows near 23°C, with 38 mm of rain across 4.6 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 32°C in the first days to 29°C by the end. The sky is clear or mostly clear about 62% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 48 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Mahdia's 5th-clearest and 11th-windiest month. For the whole year in context, see Mahdia's year-round climate.

Daytime high
30°
3rd warmest
Overnight low
23°
10th coldest
Rainfall
38 mm
4.6 wet days
Daylight
12 h 12 min
6:03 AM – 6:17 PM
Cloud cover
37%
5th clearest
Wind
12 km/h
11th windiest
Solar energy
5.24 kWh/m²
Travel score
5.9
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 32°C in the first days to 29°C by the end.

A typical September day in Mahdia reaches about 30°C in the afternoon and slips back to 23°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 33°C. Set against its neighbours, September runs about 3°C cooler than August and about 4°C warmer than October.

15°20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13224
23224
33224
43224
53124
63124
73124
83123
93123
103123
113123
123123
133023
143023
153023
163023
173023
183023
193022
203022
212922
222922
232922
242922
252922
262922
272922
282921
292821
302821

How September really feels in Mahdia

Once humidity and wind are folded in, September averages 14 days that feel above 32°C and 0 that feel at or below 0°C — the comfort signal a plain temperature reading hides.

Days feeling ≥ 32°C
14
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Mahdia weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan17° / 10°2659.96.4
Feb18° / 10°224.510.76.6
Mar20° / 12°325.511.77.2
Apr22° / 14°214.812.97.8
May26° / 17°132.813.88.2
Jun30° / 21°51.214.46.7
Jul33° / 24°10.314.25.0
Aug33° / 24°6113.34.7
Sep30° / 23°384.612.25.9
Oct27° / 19°335.811.17.4
Nov22° / 15°264.310.17.8
Dec18° / 11°264.79.67.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 62% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 22%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
19010
28911
38812
48713
58713
68614
78515
88416
98416
108317
118218
128218
138119
148020
157921
167723
177723
187525
197525
207426
217228
227228
237228
247030
257030
267030
276931
286931
296931
306931

Chance of precipitation in September

Any precipitation

Mahdia gets around 38 mm of rain over 4.6 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 15% and peaks near 17% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
19
210
311
411
512
612
713
813
914
1014
1114
1214
1314
1414
1515
1615
1715
1816
1916
2016
2116
2217
2317
2417
2517
2617
2717
2817
2917
3017

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the muggy band about 38% of days. Sticky, muggy-or-worse air turns up on roughly 70% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1041637413
2041637403
3041636403
4041736403
5041736393
6051736393
7051836383
8051836383
9051936373
10051937363
11151937353
12152037343
13162038333
14162038323
15162138313
16162139312
17172239292
18272239282
19282239272
20282339262
21292339252
22292339242
232102439232
243102439222
253112539211
263122538211
273122638201
283132637201
294142636191
304142736180

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 12 km/h on the calmest days to 12 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
112calm
212calm
312calm
412calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312calm
1412calm
1512calm
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2112light breeze
2212light breeze
2312light breeze
2412light breeze
2512light breeze
2612light breeze
2712light breeze
2812light breeze
2912light breeze
3012light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 48 min at the start of September to 11 h 42 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 66 minutes over September. Sunrise moves from 5:52 AM to 6:15 AM, and sunset from 6:39 PM to 5:56 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:526:39
212.75:536:38
312.75:536:36
412.75:546:35
512.65:556:33
612.65:566:32
712.65:576:30
812.55:576:29
912.55:586:27
1012.45:596:26
1112.46:006:24
1212.46:006:23
1312.36:016:21
1412.36:026:20
1512.36:036:18
1612.26:036:17
1712.26:046:15
1812.16:056:14
1912.16:066:12
2012.16:076:11
2112.06:076:09
2212.06:086:08
2312.06:096:06
2411.96:106:05
2511.96:116:03
2611.86:116:02
2711.86:126:00
2811.86:135:59
2911.76:145:57
3011.76:155:56

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.24 kWh/m².

For context, solar energy here swings from a low near 2.5 kWh/m² to a high of 7.6 kWh/m² in July across the year — September's 5.24 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.0Bright
25.9Bright
35.9Bright
45.8Bright
55.8Bright
65.7Bright
75.7Bright
85.6Bright
95.6Bright
105.5Bright
115.5Bright
125.4Bright
135.4Bright
145.3Bright
155.3Bright
165.2Bright
175.2Bright
185.2Bright
195.1Bright
205.0Bright
215.0Bright
225.0Bright
234.9Bright
244.9Bright
254.8Bright
264.8Bright
274.7Bright
284.7Bright
294.7Bright
304.6Bright
Planning a trip in September

Hazard calendar for Mahdia

In seasonPeak

None of Mahdia's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Mahdia sees seasonal dust haze (April–June), heaviest in April.

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

Is September a good time to visit Mahdia?

Our two travel scores rate September for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).

5.9
Sightseeing
10th-best month of the year
8.0
Beach & pool
4th-best month of the year

September is a reasonable time to visit Mahdia for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Mahdia in September

From September's temperature range, rain chance, sun and wind — what's worth putting in the bag.

In September, Mahdia sees daytime highs around 30°C and nights near 23°C. Pack light clothes. Worth having: sun protection. About 5 days see rain.

light clothessun protection

Sea temperature near Mahdia in September

The nearest coast averages about 26°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 15 km away) is warmest in August at about 27°C and coldest in February near 15°C.

It's comfortable for a long swim from May 27 to Nov 27 — about 6.1 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Bracing
Mar15Cool
Apr16Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct24Warm
Nov21Refreshing
Dec18Cool

UV index in Mahdia in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 7 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mahdia peaks around July 16 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near January 1 at about 2 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighHighVery highHighModerateJul 16UV 10Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar6High
Apr5Moderate
May7High
Jun9Very high
Jul10Very high
Aug9Very high
Sep7Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in Mahdia in September

GoodModeratePoorUnhealthyVery unhealthy

Average fine-particle pollution (PM2.5) through the year — so you can see where September falls, not just the annual average.

Air quality in Mahdia is worst in March — around 23 µg/m³ PM2.5 (moderate), about 2.2× the cleanest month (August, 10 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateMar 1322 µg/m³Aug 1311 µg/m³
PM2.5 (µg/m³)Level
Jan21Moderate
Feb22Moderate
Mar23Moderate
Apr19Moderate
May15Moderate
Jun12Moderate
Jul11Good
Aug10Good
Sep12Moderate
Oct15Moderate
Nov18Moderate
Dec18Moderate
Location & terrain

Where is Mahdia?

Mahdia sits at 35.5°N, 11.1°E, 7 m above sea level, in Tunisia. The nearest listed city is Zouila, 0.0 km away.

Topography around Mahdia

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

Within 3 km, the terrain around Mahdia has only modest variations in elevation — a maximum elevation change of 28 m around an average of 2 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 88 m; within 80 km, only modest variations in elevation — a maximum elevation change of 222 m.

The land around Mahdia is covered by water (63%) and artificial surfaces (26%) within 3 km, water (62%) and grassland (22%) within 16 km, and water (48%) and cropland (25%) within 80 km.

3 km
28 m
16 km
88 m
80 km
222 m
grasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: Zouila 0.0 km · Ksour Essaf 11 km · Bekalta 14 km · Teboulba 17 km · Moknine 20 km · Ksar Hellal 22 km · Chebba 30 km · Djemmal 31 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 Mahdia (35.5047°, 11.0622°, elevation 7 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).