Djelfa weather in September

In September, Djelfa sees average daytime highs of 28°C and overnight lows near 16°C, with 36 mm of rain across 6.4 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 2nd-wettest month of the year here.

Highs ease over the month, from about 31°C in the first days to 25°C by the end. The sky is clear or mostly clear about 55% of the time in September, and the air most often feels dry.

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 Djelfa's 4th-clearest and 11th-windiest month. For the whole year in context, see Djelfa's year-round climate.

Daytime high
28°
4th warmest
Overnight low
16°
9th coldest
Rainfall
36 mm
6.4 wet days
Daylight
12 h 12 min
6:35 AM – 6:48 PM
Cloud cover
41%
4th clearest
Wind
9 km/h
11th windiest
Solar energy
5.64 kWh/m²
Travel score
6.7
out of 10

Djelfa is city in Djelfa Province, Algeria.

Density
490/km²
people per km²
Founded
1852

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

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 25°C by the end.

A typical September day in Djelfa reaches about 28°C in the afternoon and slips back to 16°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 33°C. Set against its neighbours, September runs about 6°C cooler than August and about 6°C warmer than October.

10°20°30°40°151015202530
Avg high (°C)Avg low (°C)
13218
23118
33118
43118
53118
63017
73017
83017
93017
102917
112917
122916
132916
142816
152816
162816
172816
182815
192715
202715
212715
222715
232615
242614
252614
262614
272514
282514
292514
302513

How September really feels in Djelfa

Once humidity and wind are folded in, September averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Djelfa weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan10° / 2961.69.92.8
Feb12° / 245.31.710.73.6
Mar16° / 296.20.611.75.5
Apr19° / 3660.112.87.0
May25° / 12°305.6013.87.7
Jun31° / 17°164.5014.35.3
Jul35° / 21°93014.13.0
Aug34° / 20°144.6013.33.6
Sep28° / 16°366.4012.26.7
Oct22° / 11°325.2011.17.6
Nov15° / 214.7010.25.3
Dec11° / 235.40.89.73.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 55% 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 27%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18119
28020
37921
47822
57723
67624
77624
87525
97426
107426
117327
127327
137327
147228
157228
167129
177129
187129
197030
207030
217030
226931
236931
247030
256931
266931
276931
286931
296931
306931

Chance of precipitation in September

Any precipitation

Djelfa gets around 36 mm of rain over 6.4 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 20% and peaks near 22% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
119
220
321
421
522
622
722
822
922
1021
1121
1220
1320
1420
1519
1619
1719
1819
1919
2019
2119
2219
2319
2419
2519
2619
2719
2819
2919
3019

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the dry band about 86% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
189101
288111
388111
487121
587121
686131
786131
885132
984142
1084142
1184142
1284142
1383152
1483152
1584151
1684151
1784151
1884151
1984151
2084151
2185150
2285150
2385150
2485150
2586140
2686140
2787130
2887130
2987130
3088120

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
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

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 6:24 AM to 6:45 AM, and sunset from 7:10 PM to 6:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:247:10
212.76:257:08
312.76:257:07
412.76:267:05
512.66:277:04
612.66:277:02
712.56:287:01
812.56:296:59
912.56:306:58
1012.46:306:57
1112.46:316:55
1212.46:326:54
1312.36:336:52
1412.36:336:51
1512.36:346:49
1612.26:356:48
1712.26:366:46
1812.16:366:45
1912.16:376:43
2012.16:386:42
2112.06:396:40
2212.06:396:39
2312.06:406:37
2411.96:416:36
2511.96:426:34
2611.86:426:33
2711.86:436:31
2811.86:446:30
2911.76:456:29
3011.76:456:27

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.64 kWh/m².

For context, solar energy here swings from a low near 2.66 kWh/m² to a high of 7.61 kWh/m² in June across the year — September's 5.64 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.3Intense
26.2Intense
36.2Intense
46.1Intense
56.1Intense
66.0Intense
76.0Intense
86.0Bright
95.9Bright
105.9Bright
115.8Bright
125.8Bright
135.8Bright
145.7Bright
155.7Bright
165.7Bright
175.6Bright
185.6Bright
195.5Bright
205.5Bright
215.4Bright
225.4Bright
235.4Bright
245.3Bright
255.3Bright
265.2Bright
275.2Bright
285.2Bright
295.1Bright
305.1Bright
Planning a trip in September

Hazard calendar for Djelfa

In seasonPeak

In September, Djelfa sits inside its dust season. The full year is below, with each hazard's peak months called out.

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

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

Is September a good time to visit Djelfa?

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

6.7
Sightseeing
4th-best month of the year
7.5
Beach & pool
2nd-best month of the year

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

What to pack for Djelfa in September

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

In September, Djelfa sees daytime highs around 28°C and nights near 16°C. Pack light clothes. Worth having: sun protection. About 6 days see rain.

light clothessun protection

UV index in Djelfa 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 Djelfa peaks around July 12 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 12UV 10Dec 19UV 3
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar7High
Apr8Very high
May8Very high
Jun9Very high
Jul10Very high
Aug8Very high
Sep8Very high
Oct6High
Nov4Moderate
Dec3Moderate

Air quality in Djelfa 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 Djelfa is worst in June — around 35 µg/m³ PM2.5 (moderate), about 3.6× the cleanest month (December, 10 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodJun 1634 µg/m³Dec 2210 µg/m³
PM2.5 (µg/m³)Level
Jan10Good
Feb15Moderate
Mar25Moderate
Apr32Moderate
May30Moderate
Jun35Moderate
Jul31Moderate
Aug30Moderate
Sep33Moderate
Oct21Moderate
Nov13Moderate
Dec10Good
Location & terrain

Where is Djelfa?

Djelfa sits at 34.7°N, 3.3°E, 1,138 m above sea level, in Algeria. The nearest listed city is Dar Chioukh, 32 km away.

Topography around Djelfa

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

Within 3 km, the terrain around Djelfa has only modest variations in elevation — a maximum elevation change of 88 m around an average of 1,161 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 514 m; within 80 km, large variations in elevation — a maximum elevation change of 980 m.

The land around Djelfa is covered by artificial surfaces (60%) and bare terrain (23%) within 3 km, grassland (37%) and bare terrain (23%) within 16 km, and bare terrain (51%) and grassland (35%) within 80 km.

3 km
88 m
16 km
514 m
80 km
980 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Dar Chioukh 32 km · ’Aïn el Bell 37 km · Charef 43 km · Hassi Bahbah 49 km · Feidh el Botma 50 km · Messaad 62 km · El Idrissia 72 km · ’Aïn el Melh 84 km

Algeria travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
230 V · 50 Hz
Prices
≈ 33% of US
price level, 2025
GDP per capita
$6,051
2025
Happiness
5.7 / 10
World Happiness, 2025
Safe drinking water
69%
of population, 2024
Homicide rate
1.2
per 100k, 2023
Road deaths
20.9
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 468
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 Djelfa (34.6728°, 3.263°, elevation 1,138 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. 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).