El Jem weather in September

In September, El Jem sees average daytime highs of 30°C and overnight lows near 22°C, with 36 mm of rain across 4.8 wet days and about 12.2 hours of daylight. It is the 4th-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 El Jem's 4th-clearest and 11th-windiest month. For the whole year in context, see El Jem's year-round climate.

Daytime high
30°
4th warmest
Overnight low
22°
10th coldest
Rainfall
36 mm
4.8 wet days
Daylight
12 h 12 min
6:05 AM – 6:18 PM
Cloud cover
37%
4th clearest
Wind
11 km/h
11th windiest
Solar energy
5.33 kWh/m²
Travel score
5.7
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 El Jem reaches about 30°C in the afternoon and slips back to 22°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 34°C. Set against its neighbours, September runs about 4°C cooler than August and about 4°C warmer than October.

15°20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13323
23223
33223
43223
53223
63223
73223
83123
93122
103122
113122
123122
133122
143122
153022
163022
173022
183022
193022
203021
213021
222921
232921
242921
252921
262921
272921
282920
292820
302820

How September really feels in El Jem

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.

El Jem weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan17° / 244.19.96.3
Feb18° / 203.810.76.7
Mar20° / 11°315.211.77.3
Apr23° / 13°214.512.98.0
May27° / 17°143.113.88.0
Jun31° / 20°61.314.36.0
Jul34° / 23°10.214.14.2
Aug34° / 24°81.313.34.0
Sep30° / 22°364.812.25.7
Oct26° / 18°325.811.17.5
Nov22° / 13°233.710.17.9
Dec18° / 10°233.89.77.0

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 18% of September, with mostly cloudy or overcast conditions the remaining 20%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1919
29010
38911
48812
58812
68713
78614
88515
98515
108416
118317
128317
138218
148119
158020
167921
177723
187723
197624
207525
217426
227426
237327
247228
257228
267228
277129
287129
297129
307129

Chance of precipitation in September

Any precipitation

El Jem gets around 36 mm of rain over 4.8 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 16% and peaks near 18% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
110
211
312
413
513
614
715
815
915
1016
1116
1216
1316
1416
1516
1616
1716
1817
1917
2017
2117
2217
2317
2417
2518
2618
2718
2818
2918
3018

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 40% of days. Sticky, muggy-or-worse air turns up on roughly 66% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
1161940321
2161940321
3161940321
4171940321
5172040321
6172040321
7172040321
8172040311
9172140311
10172140301
11172140301
12172240291
13272241281
14272241271
15272241271
16272341260
17382341250
18382341240
19382342230
20392441220
21492441210
224102441200
234112541190
244112540190
255122540180
265132639170
275142638170
286142737160
296152736150
306162835150

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 11 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2711calm
2811calm
2911calm
3011calm

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 5:53 AM to 6:16 AM, and sunset from 6:40 PM to 5:57 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:536:40
212.75:546:39
312.75:556:37
412.75:566:36
512.65:566:34
612.65:576:33
712.65:586:32
812.55:596:30
912.56:006:29
1012.46:006:27
1112.46:016:26
1212.46:026:24
1312.36:036:23
1412.36:036:21
1512.36:046:20
1612.26:056:18
1712.26:066:17
1812.16:066:15
1912.16:076:13
2012.16:086:12
2112.06:096:10
2212.06:106:09
2312.06:106:07
2411.96:116:06
2511.96:126:04
2611.86:136:03
2711.86:136:01
2811.86:146:00
2911.76:155:59
3011.76:165:57

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.33 kWh/m².

For context, solar energy here swings from a low near 2.6 kWh/m² to a high of 7.67 kWh/m² in July across the year — September's 5.33 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.0Intense
36.0Bright
45.9Bright
55.9Bright
65.8Bright
75.8Bright
85.7Bright
95.7Bright
105.6Bright
115.6Bright
125.5Bright
135.5Bright
145.4Bright
155.4Bright
165.3Bright
175.3Bright
185.2Bright
195.2Bright
205.2Bright
215.1Bright
225.0Bright
235.0Bright
245.0Bright
254.9Bright
264.9Bright
274.8Bright
284.8Bright
294.8Bright
304.7Bright
Planning a trip in September

Hazard calendar for El Jem

In seasonPeak

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

El Jem 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 El Jem?

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

5.7
Sightseeing
10th-best month of the year
7.9
Beach & pool
3rd-best month of the year

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

What to pack for El Jem in September

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

In September, El Jem sees daytime highs around 30°C and nights near 22°C. Pack light clothes. Worth having: sun protection. About 5 days see rain.

light clothessun protection

Sea temperature near El Jem 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 38 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 22 to Nov 25 — about 6.2 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Bracing
Mar15Cool
Apr17Cool
May19Cool
Jun23Refreshing
Jul26Warm
Aug27Warm
Sep26Warm
Oct24Warm
Nov21Refreshing
Dec18Cool

UV index in El Jem in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in El Jem peaks around July 15 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.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 15UV 10Jan 1UV 2
UV index (midday)Level
Jan2Moderate
Feb5Moderate
Mar6High
Apr5High
May7High
Jun9Very high
Jul10Extreme
Aug9Very high
Sep8Very high
Oct6High
Nov3Moderate
Dec2Moderate

Air quality in El Jem 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 El Jem is worst in January — around 32 µg/m³ PM2.5 (moderate), about 2.0× the cleanest month (July, 16 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJan 1332 µg/m³Jul 1916 µg/m³
PM2.5 (µg/m³)Level
Jan32Moderate
Feb31Moderate
Mar30Moderate
Apr26Moderate
May22Moderate
Jun18Moderate
Jul16Moderate
Aug17Moderate
Sep20Moderate
Oct26Moderate
Nov30Moderate
Dec31Moderate
Location & terrain

Where is El Jem?

El Jem sits at 35.3°N, 10.7°E, 112 m above sea level, in Tunisia. The nearest listed city is Ksour Essaf, 28 km away.

Topography around El Jem

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

Within 3 km, the terrain around El Jem has only modest variations in elevation — a maximum elevation change of 40 m around an average of 112 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 133 m; within 80 km, large variations in elevation — a maximum elevation change of 641 m.

The land around El Jem is covered by grassland (37%), cropland (37%) and artificial surfaces (22%) within 3 km, cropland (51%) and grassland (39%) within 16 km, and water (35%) and cropland (33%) within 80 km.

3 km
40 m
16 km
133 m
80 km
641 m
treesgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Ksour Essaf 28 km · Zeramedine 31 km · Djemmal 36 km · Chebba 37 km · Zouila 38 km · Mahdia 39 km · Moknine 41 km · Ksar Hellal 42 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 Jem (35.3°, 10.7167°, elevation 112 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).