Reghaïa weather in September

In September, Reghaïa sees average daytime highs of 29°C and overnight lows near 20°C, with 33 mm of rain across 6.1 wet days and about 12.2 hours of daylight. It is the 3rd-warmest and 9th-wettest month of the year here.

Highs ease over the month, from about 30°C in the first days to 27°C by the end. The sky is clear or mostly clear about 58% of the time in September, and the air most often feels humid.

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 Reghaïa's 4th-clearest and 10th-windiest month. For the whole year in context, see Reghaïa's year-round climate.

Daytime high
29°
3rd warmest
Overnight low
20°
10th coldest
Rainfall
33 mm
6.1 wet days
Daylight
12 h 12 min
6:34 AM – 6:48 PM
Cloud cover
37%
4th clearest
Wind
10 km/h
10th windiest
Solar energy
5.3 kWh/m²
Travel score
6.6
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 27°C by the end.

A typical September day in Reghaïa reaches about 29°C in the afternoon and slips back to 20°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 32°C. Set against its neighbours, September runs about 3°C cooler than August and about 4°C warmer than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13121
23021
33021
43021
53021
63021
73021
83021
92921
102921
112920
122920
132920
142920
152920
162820
172820
182820
192819
202819
212819
222819
232719
242719
252719
262719
272719
282719
292718
302718

How September really feels in Reghaïa

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.

Reghaïa weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan15° / 7910.89.84.8
Feb16° / 671010.65.0
Mar18° / 10°658.711.76.2
Apr20° / 12°648.712.96.7
May23° / 15°486.213.97.8
Jun28° / 18°81.814.57.8
Jul31° / 21°20.514.36.0
Aug32° / 22°91.613.45.5
Sep29° / 20°336.112.26.6
Oct25° / 17°577.511.17.4
Nov20° / 12°8511.2106.2
Dec17° / 10°7510.19.55.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 58% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 26%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18515
28317
38218
48119
58020
67921
77822
87822
97723
107624
117624
127525
137525
147426
157426
167327
177327
187129
197129
207129
217129
227030
237030
247030
257030
267030
277030
287030
297030
307129

Chance of precipitation in September

Any precipitation

Reghaïa gets around 33 mm of rain over 6.1 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 20% and peaks near 26% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
110
211
312
412
513
614
714
815
916
1017
1117
1218
1319
1419
1520
1621
1722
1822
1923
2024
2124
2225
2325
2425
2526
2626
2726
2825
2925
3025

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 43% of days. Sticky, muggy-or-worse air turns up on roughly 37% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
107324713
218344612
318354511
419364411
519374310
611038429
711139419
811239408
921240397
1021341387
1121442366
1221542356
1321643345
1421643335
1531744325
1631845314
1731845304
1831946294
1932046283
2032047263
2132147253
2242248242
2342348232
2442448222
2552449212
2652549201
2762649191
2862749171
2972748161
3082848151

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 10 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
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

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 6:22 AM to 6:46 AM, and sunset from 7:11 PM to 6:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:227:11
212.86:227:10
312.76:237:08
412.76:247:07
512.76:257:05
612.66:267:03
712.66:277:02
812.56:277:00
912.56:286:59
1012.56:296:57
1112.46:306:56
1212.46:316:54
1312.46:326:53
1412.36:326:51
1512.36:336:49
1612.26:346:48
1712.26:356:46
1812.26:366:45
1912.16:376:43
2012.16:376:42
2112.06:386:40
2212.06:396:38
2311.96:406:37
2411.96:416:35
2511.96:426:34
2611.86:426:32
2711.86:436:31
2811.76:446:29
2911.76:456:28
3011.76:466:26

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.3 kWh/m².

For context, solar energy here swings from a low near 2.31 kWh/m² to a high of 7.5 kWh/m² in June across the year — September's 5.3 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.0Intense
26.0Bright
35.9Bright
45.9Bright
55.8Bright
65.8Bright
75.7Bright
85.7Bright
95.6Bright
105.6Bright
115.5Bright
125.5Bright
135.4Bright
145.4Bright
155.3Bright
165.3Bright
175.2Bright
185.2Bright
195.1Bright
205.1Bright
215.0Bright
225.0Bright
234.9Bright
244.9Bright
254.8Bright
264.8Bright
274.8Bright
284.7Bright
294.7Bright
304.7Bright
Planning a trip in September

Hazard calendar for Reghaïa

In seasonPeak

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

Reghaïa sees seasonal dust haze (June–July), heaviest in July.

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

Is September a good time to visit Reghaïa?

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

6.6
Sightseeing
5th-best month of the year
7.8
Beach & pool
4th-best month of the year

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

What to pack for Reghaïa in September

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

In September, Reghaïa sees daytime highs around 29°C and nights near 20°C. Pack light clothes. Worth having: sun protection. About 6 days see rain.

light clothessun protection

Sea temperature near Reghaïa in September

The nearest coast averages about 24°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 16 km away) is warmest in August at about 25°C and coldest in February near 15°C.

It's comfortable for a long swim from Jun 6 to Nov 5 — about 5 months when the water holds above 20°C.

15°20°25°JanFebMarAprMayJunJulAugSepOctNovDecbracingcoolrefreshingwarmcomfortable to swim
Sea temperature (°C)Comfort
Jan16Cool
Feb15Cool
Mar15Cool
Apr16Cool
May18Cool
Jun21Refreshing
Jul24Refreshing
Aug25Warm
Sep24Warm
Oct22Refreshing
Nov19Cool
Dec17Cool

UV index in Reghaïa 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 Reghaïa peaks around July 17 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 20 at about 2 (low).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 9 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecModerateHighVery highHighModerateJul 17UV 9Dec 20UV 2
UV index (midday)Level
Jan2Moderate
Feb3Moderate
Mar6High
Apr7Very high
May8Very high
Jun8Very high
Jul9Very high
Aug8Very high
Sep7High
Oct5Moderate
Nov3Moderate
Dec2Low

Air quality in Reghaïa 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 Reghaïa is worst in July — around 67 µg/m³ PM2.5 (unhealthy), about 1.7× the cleanest month (November, 40 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorJul 1966 µg/m³Nov 1841 µg/m³
PM2.5 (µg/m³)Level
Jan43Poor
Feb51Poor
Mar59Unhealthy
Apr58Unhealthy
May56Unhealthy
Jun55Poor
Jul67Unhealthy
Aug61Unhealthy
Sep48Poor
Oct52Poor
Nov40Poor
Dec47Poor
Location & terrain

Where is Reghaïa?

Reghaïa sits at 36.7°N, 3.3°E, 14 m above sea level, in Algeria. The nearest listed city is Ouled Haddaj, 2.0 km away.

Topography around Reghaïa

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

Within 3 km, the terrain around Reghaïa has only modest variations in elevation — a maximum elevation change of 53 m around an average of 25 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 656 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,266 m.

The land around Reghaïa is covered by artificial surfaces (49%) and cropland (23%) within 3 km, water (33%) and artificial surfaces (20%) within 16 km, and water (33%), trees (22%) and grassland (22%) within 80 km.

3 km
53 m
16 km
656 m
80 km
2,266 m
treesshrubsgrasslandcroplandartificial surfacesbare terrainwater
September weather nearby: Ouled Haddaj 2.0 km · Rouiba 5.0 km · Ouled Moussa 6.0 km · Boudouaou 6.0 km · Aïn Taya 8.0 km · Khemis el Khechna 10 km · Bordj el Bahri 10 km · Arbatache 11 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 Reghaïa (36.7359°, 3.3402°, elevation 14 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).