Zaghouan weather in September

In September, Zaghouan sees average daytime highs of 30°C and overnight lows near 20°C, with 41 mm of rain across 5.7 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 4th-wettest month of the year here.

Highs ease over the month, from about 31°C in the first days to 28°C by the end. The sky is clear or mostly clear about 57% 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 Zaghouan's 5th-clearest and 11th-windiest month. For the whole year in context, see Zaghouan's year-round climate.

Daytime high
30°
4th warmest
Overnight low
20°
10th coldest
Rainfall
41 mm
5.7 wet days
Daylight
12 h 12 min
6:07 AM – 6:21 PM
Cloud cover
40%
5th clearest
Wind
9 km/h
11th windiest
Solar energy
5.07 kWh/m²
Travel score
6.0
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 31°C in the first days to 28°C by the end.

A typical September day in Zaghouan reaches about 30°C in the afternoon and slips back to 20°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 33°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)
13222
23222
33122
43121
53121
63121
73121
83121
93021
103021
113021
123021
133021
143021
153021
163020
172920
182920
192920
202920
212920
222920
232820
242820
252819
262819
272819
282819
292819
302719

How September really feels in Zaghouan

Once humidity and wind are folded in, September averages 6 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
6
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.

Zaghouan weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan16° / 356.99.85.3
Feb16° / 397.510.65.4
Mar18° / 437.611.76.5
Apr21° / 12°417.712.97.1
May26° / 15°234.313.98.0
Jun30° / 19°11214.46.4
Jul33° / 22°20.414.24.8
Aug33° / 22°102.113.44.5
Sep30° / 20°415.712.26.0
Oct26° / 17°457.111.17.4
Nov21° / 12°36610.17.2
Dec17° / 366.39.66.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 57% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 26%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18515
28416
38317
48317
58119
68020
78020
87822
97822
107723
117723
127525
137525
147327
157327
167327
177129
187129
197129
206931
216931
226931
237030
247030
257030
267030
276931
286931
296931
306931

Chance of precipitation in September

Any precipitation

Zaghouan gets around 41 mm of rain over 5.7 wet days in September. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 19% and peaks near 21% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
114
215
316
416
517
618
718
819
919
1019
1119
1219
1320
1420
1520
1620
1720
1820
1920
2020
2120
2220
2320
2420
2520
2620
2720
2820
2921
3021

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 39% of days. Sticky, muggy-or-worse air turns up on roughly 51% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
108304516
208304516
309314416
409314416
5010314415
6010314315
7010314315
8011314315
9011314314
10012314314
11112314214
12112314213
13113324113
14113324113
15114324112
16214324012
17214324011
18315323911
19315333910
20316333810
2141634379
2241634379
2351734368
2451735358
2551835348
2661835337
2761936337
2871936327
2972036316
3072136306

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

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 5:55 AM to 6:19 AM, and sunset from 6:44 PM to 5:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.85:556:44
212.85:566:42
312.75:566:41
412.75:576:39
512.75:586:38
612.65:596:36
712.66:006:35
812.56:006:33
912.56:016:31
1012.56:026:30
1112.46:036:28
1212.46:046:27
1312.36:046:25
1412.36:056:24
1512.36:066:22
1612.26:076:21
1712.26:086:19
1812.16:096:17
1912.16:096:16
2012.16:106:14
2112.06:116:13
2212.06:126:11
2312.06:136:10
2411.96:136:08
2511.96:146:07
2611.86:156:05
2711.86:166:04
2811.86:176:02
2911.76:186:00
3011.76:195:59

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.07 kWh/m².

For context, solar energy here swings from a low near 2.31 kWh/m² to a high of 7.59 kWh/m² in July across the year — September's 5.07 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
25.8Bright
35.8Bright
45.7Bright
55.6Bright
65.6Bright
75.5Bright
85.5Bright
95.4Bright
105.3Bright
115.3Bright
125.3Bright
135.2Bright
145.2Bright
155.1Bright
165.0Bright
175.0Bright
185.0Bright
194.9Bright
204.9Bright
214.8Bright
224.8Bright
234.7Bright
244.7Bright
254.7Bright
264.6Bright
274.6Bright
284.5Bright
294.5Bright
304.5Bright
Planning a trip in September

Hazard calendar for Zaghouan

In seasonPeak

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

Zaghouan sees seasonal dust haze (June), heaviest in June.

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

Is September a good time to visit Zaghouan?

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

6.0
Sightseeing
7th-best month of the year
7.8
Beach & pool
4th-best month of the year

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

What to pack for Zaghouan in September

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

In September, Zaghouan sees daytime highs around 30°C and nights near 20°C. Pack light clothes. Worth having: sun protection. About 6 days see rain.

light clothessun protection

Sea temperature near Zaghouan 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 43 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 30 to Nov 25 — about 5.9 months when the water holds above 20°C.

15°20°25°30°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Bracing
Mar15Bracing
Apr16Cool
May19Cool
Jun22Refreshing
Jul25Warm
Aug27Warm
Sep26Warm
Oct24Refreshing
Nov21Refreshing
Dec18Cool

UV index in Zaghouan 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 Zaghouan peaks around July 16 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 2 (moderate).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighModerateVery highVery highHighModerateJul 16UV 10Dec 21UV 2
UV index (midday)Level
Jan2Moderate
Feb4Moderate
Mar6High
Apr4Moderate
May7High
Jun9Very high
Jul10Extreme
Aug8Very high
Sep7Very high
Oct6High
Nov3Moderate
Dec2Low

Air quality in Zaghouan 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 Zaghouan is worst in February — around 38 µg/m³ PM2.5 (poor), about 1.6× the cleanest month (August, 24 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecPoorModeratePoorFeb 1638 µg/m³Aug 1024 µg/m³
PM2.5 (µg/m³)Level
Jan36Poor
Feb38Poor
Mar36Poor
Apr33Moderate
May29Moderate
Jun25Moderate
Jul24Moderate
Aug24Moderate
Sep27Moderate
Oct31Moderate
Nov34Moderate
Dec37Poor
Location & terrain

Where is Zaghouan?

Zaghouan sits at 36.4°N, 10.1°E, 176 m above sea level, in Tunisia. The nearest listed city is El Fahs, 21 km away.

Topography around Zaghouan

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

Within 3 km, the terrain around Zaghouan has large variations in elevation — a maximum elevation change of 818 m around an average of 215 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,180 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,333 m.

The land around Zaghouan is covered by grassland (36%) and trees (21%) within 3 km, grassland (40%) and cropland (35%) within 16 km, and cropland (37%), grassland (26%) and water (21%) within 80 km.

3 km
818 m
16 km
1,180 m
80 km
1,333 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: El Fahs 21 km · La Mohammedia 30 km · Fouchana 33 km · La Sebala du Mornag 33 km · El Mourouj 35 km · Boumhel El Bassatine 37 km · Grombalia 39 km · Borj Cedria 39 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 Zaghouan (36.4029°, 10.1429°, elevation 176 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).