Robbah weather in September

In September, Robbah sees average daytime highs of 35°C and overnight lows near 23°C, with 5 mm of rain across 1 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 6th-wettest month of the year here.

Highs ease over the month, from about 38°C in the first days to 33°C by the end. The sky is clear or mostly clear about 75% of the time in September, and the air most often feels dry.

Daylight stretches from about 12 h 42 min at the start of September to 11 h 42 min by month's end. Set against the rest of the year, September is Robbah's 4th-clearest and 8th-windiest month. For the whole year in context, see Robbah's year-round climate.

Daytime high
35°
4th warmest
Overnight low
23°
9th coldest
Rainfall
5 mm
1 wet days
Daylight
12 h 12 min
6:21 AM – 6:33 PM
Cloud cover
24%
4th clearest
Wind
15 km/h
8th windiest
Solar energy
6.05 kWh/m²
Travel score
3.2
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 38°C in the first days to 33°C by the end.

A typical September day in Robbah reaches about 35°C in the afternoon and slips back to 23°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 40°C. Set against its neighbours, September runs about 5°C cooler than August and about 6°C warmer than October.

20°30°40°151015202530
Avg high (°C)Avg low (°C)
13826
23825
33825
43725
53725
63725
73725
83725
93724
103624
113624
123624
133624
143624
153523
163523
173523
183523
193523
203423
213422
223422
233422
243322
253322
263322
273321
283321
293221
303221

How September really feels in Robbah

Once humidity and wind are folded in, September averages 30 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
30
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.

Robbah weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 6th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan16° / 101.7106.8
Feb19° / 41.310.87.9
Mar23° / 11°91.511.78.7
Apr27° / 15°71.112.88.1
May33° / 20°30.513.74.8
Jun38° / 24°10.114.21.7
Jul41° / 27°00.2140.0
Aug40° / 27°10.313.20.3
Sep35° / 23°5112.23.2
Oct29° / 18°51.211.26.9
Nov22° / 11°81.510.38.6
Dec17° / 71.69.87.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 75% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 14%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1946
2946
3928
4928
5928
6919
79010
89010
98911
108812
118812
128812
138614
148614
158614
168515
178515
188416
198416
208416
218317
228317
238317
248218
258218
268119
278119
288020
298020
308020

Chance of precipitation in September

Any precipitation

Robbah gets around 5 mm of rain over 1 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 3% and peaks near 5% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
12
22
32
42
52
62
72
82
92
102
112
122
132
143
153
163
173
183
193
204
214
224
234
244
254
265
275
285
295
304

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 41% of days. Sticky, muggy-or-worse air turns up on roughly 7% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
13731276
23730276
33730286
43729287
53728287
63728278
73827278
83927268
93927268
104027258
114127248
124227238
134227238
144327228
154327228
164327228
174327227
184327227
194327237
204327236
214327246
224327246
234327246
244327246
254327246
264427245
274427235
284527235
294627225
304627225

Wind in September

Winds average 15 km/h in September.

Across September, daily wind ranges from about 14 km/h on the calmest days to 15 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
115light breeze
215light breeze
315light breeze
415light breeze
515light breeze
615light breeze
715light breeze
815light breeze
915light breeze
1015light breeze
1115light breeze
1215light breeze
1315light breeze
1415light breeze
1515light breeze
1615light breeze
1715light breeze
1815light breeze
1915light breeze
2015light breeze
2115light breeze
2215light breeze
2314light breeze
2414light breeze
2514light breeze
2614light breeze
2714light breeze
2814light breeze
2914light breeze
3014light breeze

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 42 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 60 minutes over September. Sunrise moves from 6:10 AM to 6:30 AM, and sunset from 6:54 PM to 6:13 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.76:106:54
212.76:116:52
312.76:126:51
412.66:126:50
512.66:136:48
612.66:146:47
712.56:146:46
812.56:156:44
912.46:166:43
1012.46:176:41
1112.46:176:40
1212.36:186:38
1312.36:196:37
1412.36:196:36
1512.26:206:34
1612.26:216:33
1712.26:216:31
1812.16:226:30
1912.16:236:28
2012.16:236:27
2112.06:246:26
2212.06:256:24
2312.06:256:23
2411.96:266:21
2511.96:276:20
2611.96:286:19
2711.86:286:17
2811.86:296:16
2911.76:306:14
3011.76:306:13

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.05 kWh/m².

For context, solar energy here swings from a low near 3.15 kWh/m² to a high of 7.96 kWh/m² in June across the year — September's 6.05 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.6Intense
26.6Intense
36.6Intense
46.5Intense
56.5Intense
66.5Intense
76.4Intense
86.4Intense
96.3Intense
106.3Intense
116.3Intense
126.2Intense
136.2Intense
146.1Intense
156.1Intense
166.1Intense
176.0Intense
186.0Bright
195.9Bright
205.9Bright
215.8Bright
225.8Bright
235.7Bright
245.7Bright
255.7Bright
265.6Bright
275.6Bright
285.5Bright
295.5Bright
305.4Bright
Planning a trip in September

Hazard calendar for Robbah

In seasonPeak

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

Robbah sees seasonal dust haze (March–October), heaviest in June.

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

Is September a good time to visit Robbah?

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

3.2
Sightseeing
9th-best month of the year
6.7
Beach & pool
4th-best month of the year

September is a weaker month for outdoor sightseeing in Robbah. The water and warmth also suit a beach or pool day.

What to pack for Robbah in September

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

In September, Robbah sees daytime highs around 35°C and nights near 23°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Robbah in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 8 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Robbah peaks around June 19 at about 10 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 at about 3 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJun 19UV 10Dec 21UV 3
UV index (midday)Level
Jan3Moderate
Feb6High
Mar7High
Apr6High
May7High
Jun11Extreme
Jul9Very high
Aug8Very high
Sep8Very high
Oct7High
Nov4Moderate
Dec3Moderate

Air quality in Robbah 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 Robbah is worst in April — around 109 µg/m³ PM2.5 (unhealthy), about 2.5× the cleanest month (December, 44 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorApr 19107 µg/m³Dec 944 µg/m³
PM2.5 (µg/m³)Level
Jan54Poor
Feb58Unhealthy
Mar81Unhealthy
Apr109Unhealthy
May97Unhealthy
Jun101Unhealthy
Jul72Unhealthy
Aug66Unhealthy
Sep64Unhealthy
Oct50Poor
Nov44Poor
Dec44Poor
Location & terrain

Where is Robbah?

Robbah sits at 33.3°N, 6.9°E, 90 m above sea level, in Algeria. The nearest listed city is El Oued, 10 km away.

Topography around Robbah

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

Within 3 km, the terrain around Robbah has only modest variations in elevation — a maximum elevation change of 49 m around an average of 86 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 66 m; within 80 km, only modest variations in elevation — a maximum elevation change of 173 m.

The land around Robbah is covered by bare terrain (72%) within 3 km, bare terrain (86%) within 16 km, and bare terrain (99%) within 80 km.

3 km
49 m
16 km
66 m
80 km
173 m
treesgrasslandcroplandartificial surfacesbare terrain
September weather nearby: El Oued 10 km · Guemar 25 km · Debila 27 km · Reguiba 37 km · Taïbet 53 km · Megarine 77 km · Tebesbest 79 km · Touggourt 80 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 Robbah (33.2797°, 6.9098°, elevation 90 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).