Râs el Aïoun weather in September

In September, Râs el Aïoun sees average daytime highs of 27°C and overnight lows near 15°C, with 34 mm of rain across 6.9 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 29°C in the first days to 24°C by the end. The sky is clear or mostly clear about 52% 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 Râs el Aïoun's 4th-clearest and 12th-windiest month. For the whole year in context, see Râs el Aïoun's year-round climate.

Daytime high
27°
4th warmest
Overnight low
15°
9th coldest
Rainfall
34 mm
6.9 wet days
Daylight
12 h 12 min
6:25 AM – 6:38 PM
Cloud cover
42%
4th clearest
Wind
8 km/h
12th windiest
Solar energy
5.44 kWh/m²
Travel score
7.1
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 29°C in the first days to 24°C by the end.

A typical September day in Râs el Aïoun reaches about 27°C in the afternoon and slips back to 15°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 31°C. Set against its neighbours, September runs about 6°C cooler than August and about 6°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
13018
23017
32917
42917
52917
62917
72917
82816
92816
102816
112816
122816
132716
142716
152715
162715
172715
182615
192615
202615
212615
222614
232514
242514
252514
262514
272514
282413
292413
302413

How September really feels in Râs el Aïoun

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.

Râs el Aïoun 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 daysSnow daysDaylight (hours)Travel score
Jan10° / 316.72.29.92.5
Feb11° / 266.3210.63.2
Mar15° / 407.70.811.74.8
Apr18° / 457.90.212.96.3
May24° / 11°437.3013.97.5
Jun29° / 16°174.8014.46.3
Jul33° / 19°103.6014.24.2
Aug32° / 19°185.2013.34.6
Sep27° / 15°346.9012.27.1
Oct21° / 11°285.4011.17.5
Nov15° / 295.40.110.15.1
Dec11° / 2761.39.63.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 52% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 21% 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 (%)
18218
28218
38020
47921
57921
67723
77723
87624
97624
107525
117426
127327
137327
147228
157129
167129
177030
187030
197030
206931
216931
226931
236832
246832
256832
266832
276832
286832
296931
306931

Chance of precipitation in September

Any precipitation

Râs el Aïoun gets around 34 mm of rain over 6.9 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 22% and peaks near 24% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
123
223
324
424
524
624
724
824
924
1023
1123
1222
1322
1421
1521
1621
1721
1821
1921
2021
2121
2221
2321
2421
2522
2622
2721
2821
2921
3021

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 74% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
162362
262362
362362
461363
562353
663343
764333
865323
966313
1068293
1169283
1271263
1372253
1473243
1574233
1675223
1777212
1878202
1978202
2079192
2180191
2281181
2381181
2481181
2582171
2683170
2783170
2884160
2984160
3085150

Wind in September

Winds average 8 km/h in September, the calmest month.

Across September, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

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 6:13 AM to 6:36 AM, and sunset from 7:01 PM to 6:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:137:01
212.86:146:59
312.76:156:58
412.76:166:56
512.66:176:55
612.66:176:54
712.66:186:52
812.56:196:51
912.56:206:49
1012.56:206:48
1112.46:216:46
1212.46:226:44
1312.36:236:43
1412.36:246:41
1512.36:246:40
1612.26:256:38
1712.26:266:37
1812.16:276:35
1912.16:276:34
2012.16:286:32
2112.06:296:31
2212.06:306:29
2312.06:316:28
2411.96:316:26
2511.96:326:25
2611.86:336:23
2711.86:346:22
2811.86:356:20
2911.76:356:19
3011.76:366:17

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.44 kWh/m².

For context, solar energy here swings from a low near 2.52 kWh/m² to a high of 7.58 kWh/m² in July across the year — September's 5.44 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.0Intense
36.0Intense
46.0Bright
55.9Bright
65.9Bright
75.8Bright
85.8Bright
95.7Bright
105.7Bright
115.6Bright
125.6Bright
135.6Bright
145.5Bright
155.5Bright
165.4Bright
175.4Bright
185.3Bright
195.3Bright
205.3Bright
215.2Bright
225.2Bright
235.1Bright
245.1Bright
255.0Bright
265.0Bright
275.0Bright
284.9Bright
294.9Bright
304.8Bright
Planning a trip in September

Hazard calendar for Râs el Aïoun

In seasonPeak

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

Râs el Aïoun sees seasonal dust haze (June–July), heaviest in June.

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

Is September a good time to visit Râs el Aïoun?

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

7.1
Sightseeing
3rd-best month of the year
7.3
Beach & pool
4th-best month of the year

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

What to pack for Râs el Aïoun in September

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

In September, Râs el Aïoun sees daytime highs around 27°C and nights near 15°C. Worth packing: light clothes and sun protection. About 7 days see rain.

light clothessun protection

UV index in Râs el Aïoun 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 Râs el Aïoun peaks around July 14 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 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 14UV 10Dec 20UV 2
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug8Very high
Sep8Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Râs el Aïoun 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 Râs el Aïoun is worst in September — around 32 µg/m³ PM2.5 (moderate), and holds fairly steady the rest of the year.

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateSep 1831 µg/m³Nov 2225 µg/m³
PM2.5 (µg/m³)Level
Jan25Moderate
Feb26Moderate
Mar28Moderate
Apr30Moderate
May29Moderate
Jun29Moderate
Jul27Moderate
Aug29Moderate
Sep32Moderate
Oct30Moderate
Nov25Moderate
Dec25Moderate
Location & terrain

Where is Râs el Aïoun?

Râs el Aïoun sits at 35.7°N, 5.6°E, 862 m above sea level, in Algeria. The nearest listed city is N’Gaous, 14 km away.

Topography around Râs el Aïoun

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

Within 3 km, the terrain around Râs el Aïoun has significant variations in elevation — a maximum elevation change of 264 m around an average of 891 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,248 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,097 m.

The land around Râs el Aïoun is covered by cropland (59%) and grassland (23%) within 3 km, grassland (46%) and cropland (35%) within 16 km, and cropland (38%) and grassland (35%) within 80 km.

3 km
264 m
16 km
1,248 m
80 km
2,097 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: N’Gaous 14 km · ’Aïn Azel 20 km · Merouana 25 km · Salah Bey 38 km · Aïn Touta 40 km · Barika 41 km · Aïn Oulmene 42 km · Batna 50 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 Râs el Aïoun (35.6738°, 5.6453°, elevation 862 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).