Rass el Djebel weather in September

In September, Rass el Djebel sees average daytime highs of 25°C and overnight lows near 23°C, with 40 mm of rain across 5.5 wet days and about 12.3 hours of daylight. It is the 3rd-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 26°C in the first days to 24°C by the end. The sky is clear or mostly clear about 64% 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 Rass el Djebel's 4th-clearest and 9th-windiest month. For the whole year in context, see Rass el Djebel's year-round climate.

Daytime high
25°
3rd warmest
Overnight low
23°
10th coldest
Rainfall
40 mm
5.5 wet days
Daylight
12 h 12 min
6:07 AM – 6:21 PM
Cloud cover
34%
4th clearest
Wind
20 km/h
9th windiest
Solar energy
5.05 kWh/m²
Travel score
8.1
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 26°C in the first days to 24°C by the end.

A typical September day in Rass el Djebel reaches about 25°C in the afternoon and slips back to 23°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 27°C. Set against its neighbours, September runs about 2°C cooler than August and about 2°C warmer than October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12624
22624
32624
42624
52624
62624
72524
82524
92524
102523
112523
122523
132523
142523
152523
162523
172523
182523
192523
202423
212423
222422
232422
242422
252422
262422
272422
282422
292422
302422

Rass el Djebel weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan14° / 13°81119.74.3
Feb14° / 12°669.810.64.2
Mar15° / 13°497.611.74.9
Apr16° / 15°407.112.95.8
May19° / 17°223.7147.4
Jun22° / 21°71.114.58.9
Jul25° / 24°10.314.39.5
Aug26° / 25°51.213.48.9
Sep25° / 23°405.512.38.1
Oct22° / 20°597.7117.4
Nov19° / 17°8311.3106.1
Dec16° / 14°8512.19.54.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 64% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 21%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18812
28812
38713
48614
58515
68515
78317
88317
98317
108119
118119
128020
137921
147822
157723
167723
177624
187624
197624
207426
217426
227426
237525
247525
257525
267525
277525
287525
297426
307426

Chance of precipitation in September

Any precipitation

Rass el Djebel gets around 40 mm of rain over 5.5 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 18% and peaks near 23% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
110
211
312
413
514
614
715
816
916
1017
1117
1217
1318
1418
1519
1620
1720
1820
1921
2021
2121
2221
2321
2421
2522
2622
2722
2822
2923
3023

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 36% 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 (%)
1021533454
2021635443
3021735423
4031836403
5031937383
6031938372
7032038362
8032039352
9042139342
10042139342
11042239332
12042239322
13052338322
14052438312
15062537312
16062636301
17072736291
18072835281
19082935271
20083035261
21193134251
221103234231
231103234221
241113334200
251113434190
261123434180
271133534170
281133534160
291143534150
301153534140

Wind in September

Winds average 20 km/h in September.

Across September, daily wind ranges from about 20 km/h on the calmest days to 21 km/h at its breeziest. It stays fairly steady from day to day.

0510152025151015202530
Wind speed (km/h)Feels
120light breeze
220light breeze
320light breeze
420light breeze
520light breeze
620light breeze
720light breeze
820breezy
920breezy
1020breezy
1120breezy
1220breezy
1320breezy
1420breezy
1521breezy
1621breezy
1721breezy
1821breezy
1921breezy
2021breezy
2121breezy
2221breezy
2321breezy
2421breezy
2521breezy
2621breezy
2721breezy
2821breezy
2921breezy
3021breezy

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 5:54 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)
112.85:546:44
212.85:556:43
312.85:566:41
412.75:576:40
512.75:576:38
612.65:586:37
712.65:596:35
812.66:006:34
912.56:016:32
1012.56:026:30
1112.46:036:29
1212.46:036:27
1312.46:046:26
1412.36:056:24
1512.36:066:22
1612.26:076:21
1712.26:086:19
1812.26:086:18
1912.16:096:16
2012.16:106:14
2112.06:116:13
2212.06:126:11
2311.96:136:10
2411.96:146:08
2511.96:156:07
2611.86:156:05
2711.86:166:03
2811.76:176:02
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 5.05 kWh/m².

For context, solar energy here swings from a low near 2.15 kWh/m² to a high of 7.52 kWh/m² in July across the year — September's 5.05 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
25.8Bright
35.7Bright
45.7Bright
55.6Bright
65.6Bright
75.5Bright
85.4Bright
95.4Bright
105.3Bright
115.3Bright
125.2Bright
135.2Bright
145.1Bright
155.1Bright
165.0Bright
175.0Bright
184.9Bright
194.9Bright
204.8Bright
214.8Bright
224.7Bright
234.7Bright
244.7Bright
254.6Bright
264.6Bright
274.5Bright
284.5Bright
294.5Bright
304.4Bright
Planning a trip in September

Hazard calendar for Rass el Djebel

In seasonPeak

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

Rass el Djebel 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 Rass el Djebel?

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

8.1
Sightseeing
4th-best month of the year
7.1
Beach & pool
3rd-best month of the year

September is one of the better times to visit Rass el Djebel for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Rass el Djebel in September

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

In September, Rass el Djebel sees daytime highs around 25°C and nights near 23°C. Worth packing: light clothes, sun protection and a windbreaker. About 6 days see rain.

light clothessun protectiona windbreaker

Sea temperature near Rass el Djebel in September

The nearest coast averages about 25°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 18 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 in Rass el Djebel 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 Rass el Djebel 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

Air quality in Rass el Djebel 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 Rass el Djebel is worst in March — around 19 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateMar 1519 µg/m³Jul 2413 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb18Moderate
Mar19Moderate
Apr17Moderate
May16Moderate
Jun14Moderate
Jul13Moderate
Aug13Moderate
Sep15Moderate
Oct16Moderate
Nov15Moderate
Dec15Moderate
Location & terrain

Where is Rass el Djebel?

Rass el Djebel sits at 37.2°N, 10.1°E, 53 m above sea level, in Tunisia. The nearest listed city is El Alia, 10 km away.

Topography around Rass el Djebel

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

Within 3 km, the terrain around Rass el Djebel has significant variations in elevation — a maximum elevation change of 255 m around an average of 53 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 319 m; within 80 km, large variations in elevation — a maximum elevation change of 725 m.

The land around Rass el Djebel is covered by grassland (28%), cropland (24%) and trees (21%) within 3 km, water (56%) and cropland (20%) within 16 km, and water (48%) and cropland (26%) within 80 km.

3 km
255 m
16 km
319 m
80 km
725 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwaterwetland
September weather nearby: El Alia 10 km · Galaat el Andeless 17 km · Menzel Jemil 19 km · Bizerte 23 km · Menzel Abderhaman 23 km · Menzel Bourguiba 31 km · Tinja 33 km · Douar Tindja 34 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 Rass el Djebel (37.2157°, 10.1253°, elevation 53 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).