Merouana weather in September

In September, Merouana sees average daytime highs of 27°C and overnight lows near 15°C, with 35 mm of rain across 7.7 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 5th-wettest month of the year here.

Highs ease over the month, from about 30°C in the first days to 25°C by the end. The sky is clear or mostly clear about 51% 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 Merouana's 4th-clearest and 12th-windiest month. For the whole year in context, see Merouana's year-round climate.

Daytime high
27°
4th warmest
Overnight low
15°
9th coldest
Rainfall
35 mm
7.7 wet days
Daylight
12 h 12 min
6:24 AM – 6:37 PM
Cloud cover
43%
4th clearest
Wind
8 km/h
12th windiest
Solar energy
5.39 kWh/m²
Travel score
6.8
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 30°C in the first days to 25°C by the end.

A typical September day in Merouana 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 32°C. Set against its neighbours, September runs about 5°C cooler than August and about 5°C warmer than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
13017
23017
33017
43017
52917
62917
72916
82916
92816
102816
112816
122816
132816
142815
152715
162715
172715
182715
192715
202615
212614
222614
232614
242614
252514
262514
272514
282513
292513
302413

How September really feels in Merouana

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.

Merouana weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 5th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan11° / 367.329.92.7
Feb12° / 296.92.210.73.4
Mar15° / 457.91.111.75.0
Apr19° / 478.40.212.96.4
May24° / 11°478.1013.97.4
Jun29° / 16°205.8014.46.1
Jul33° / 19°113.9014.24.1
Aug33° / 19°205.9013.34.4
Sep27° / 15°357.7012.26.8
Oct22° / 11°295.6011.17.5
Nov15° / 305.80.110.15.3
Dec11° / 336.31.29.63.3

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% 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 28%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18218
28119
38020
47921
57822
67822
77624
87624
97525
107525
117426
127327
137327
147228
157129
167129
177030
186931
196832
206832
216832
226733
236733
246733
256733
266733
276733
286733
296832
306832

Chance of precipitation in September

Any precipitation

Merouana gets around 35 mm of rain over 7.7 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 25% and peaks near 28% on the wettest days.

0%10%20%30%40%151015202530
Rain chance (%)
127
228
328
428
528
628
728
827
927
1026
1126
1225
1324
1424
1524
1624
1723
1823
1923
2023
2123
2223
2323
2423
2523
2623
2723
2823
2922
3022

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 73% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
161354
261354
361354
461354
561354
662344
762335
863325
965305
1066295
1168275
1269265
1371254
1472244
1573234
1675223
1775223
1876213
1977212
2078202
2178202
2280191
2380191
2481181
2581181
2683170
2783170
2884160
2985150
3085150

Wind in September

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

Across September, daily wind ranges from about 7 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
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
227calm
237calm
247calm
257calm
267calm
277calm
287calm
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 6:12 AM to 6:35 AM, and sunset from 7:00 PM to 6:16 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:127:00
212.86:136:58
312.76:146:57
412.76:156:55
512.66:156:54
612.66:166:52
712.66:176:51
812.56:186:49
912.56:196:48
1012.56:196:46
1112.46:206:45
1212.46:216:43
1312.36:226:42
1412.36:226:40
1512.36:236:39
1612.26:246:37
1712.26:256:36
1812.16:266:34
1912.16:266:33
2012.16:276:31
2112.06:286:30
2212.06:296:28
2312.06:306:27
2411.96:306:25
2511.96:316:24
2611.86:326:22
2711.86:336:21
2811.86:346:19
2911.76:346:18
3011.76:356:16

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.39 kWh/m².

For context, solar energy here swings from a low near 2.51 kWh/m² to a high of 7.53 kWh/m² in July across the year — September's 5.39 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.0Intense
26.0Bright
35.9Bright
45.9Bright
55.8Bright
65.8Bright
75.8Bright
85.7Bright
95.7Bright
105.6Bright
115.6Bright
125.5Bright
135.5Bright
145.5Bright
155.4Bright
165.4Bright
175.3Bright
185.3Bright
195.3Bright
205.2Bright
215.2Bright
225.1Bright
235.1Bright
245.0Bright
255.0Bright
265.0Bright
274.9Bright
284.9Bright
294.8Bright
304.8Bright
Planning a trip in September

Hazard calendar for Merouana

In seasonPeak

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

Merouana 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 Merouana?

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

6.8
Sightseeing
3rd-best month of the year
7.2
Beach & pool
4th-best month of the year

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

What to pack for Merouana in September

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

In September, Merouana sees daytime highs around 27°C and nights near 15°C. Pack light clothes. Worth having: sun protection. About 8 days see rain.

light clothessun protection

UV index in Merouana 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 Merouana 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
Mar7High
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug8Very high
Sep8Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Merouana 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 Merouana 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 Merouana?

Merouana sits at 35.6°N, 5.9°E, 992 m above sea level, in Algeria. The nearest listed city is Râs el Aïoun, 25 km away.

Topography around Merouana

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

Within 3 km, the terrain around Merouana has significant variations in elevation — a maximum elevation change of 504 m around an average of 1,044 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,320 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,121 m.

The land around Merouana is covered by cropland (41%) and grassland (33%) within 3 km, grassland (39%), cropland (31%) and trees (22%) within 16 km, and cropland (39%) and grassland (36%) within 80 km.

3 km
504 m
16 km
1,320 m
80 km
2,121 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Râs el Aïoun 25 km · Batna 25 km · Aïn Touta 28 km · N’Gaous 29 km · Tazoult-Lambese 36 km · ’Aïn Azel 42 km · Tadjenanet 55 km · Barika 56 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 Merouana (35.6311°, 5.9119°, elevation 992 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).