Bou Saâda weather in September

In September, Bou Saâda sees average daytime highs of 31°C and overnight lows near 19°C, with 34 mm of rain across 6.2 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 1st-wettest month of the year here.

Highs ease over the month, from about 34°C in the first days to 28°C by the end. The sky is clear or mostly clear about 57% 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 Bou Saâda's 4th-clearest and 11th-windiest month. For the whole year in context, see Bou Saâda's year-round climate.

Daytime high
31°
4th warmest
Overnight low
19°
9th coldest
Rainfall
34 mm
6.2 wet days
Daylight
12 h 12 min
6:31 AM – 6:44 PM
Cloud cover
39%
4th clearest
Wind
9 km/h
11th windiest
Solar energy
5.64 kWh/m²
Travel score
5.4
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 34°C in the first days to 28°C by the end.

A typical September day in Bou Saâda reaches about 31°C in the afternoon and slips back to 19°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 35°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)
13421
23421
33421
43321
53320
63320
73320
83220
93220
103219
113219
123119
133119
143119
153119
163118
173018
183018
193018
203018
213018
222917
232917
242917
252917
262817
272817
282816
292816
302816

How September really feels in Bou Saâda

Once humidity and wind are folded in, September averages 9 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
9
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.

Bou Saâda weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan13° / 234.69.94.2
Feb15° / 163.810.75.3
Mar19° / 234.511.77.1
Apr23° / 10°32512.97.7
May28° / 15°284.913.87.0
Jun34° / 20°11314.33.8
Jul38° / 24°8314.11.4
Aug37° / 23°134.513.32.0
Sep31° / 19°346.212.25.4
Oct25° / 14°304.511.17.9
Nov18° / 214.210.16.7
Dec14° / 184.19.74.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 57% 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 27%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18218
28119
38020
47921
57822
67723
77723
87624
97624
107525
117426
127426
137327
147327
157228
167228
177129
187129
197030
207030
217030
227030
237030
246931
257030
267030
277030
287030
297030
307030

Chance of precipitation in September

Any precipitation

Bou Saâda gets around 34 mm of rain over 6.2 wet days in September, the wettest month. 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 23% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
121
222
322
423
523
623
723
822
922
1021
1120
1220
1319
1419
1519
1618
1718
1818
1918
2018
2118
2218
2318
2418
2518
2618
2718
2817
2917
3017

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 62% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
16127111
25928121
35928121
45829121
55729131
65729131
75729131
85729131
95628142
105727142
115826142
125925142
136024142
146123142
156222142
166321142
176321142
186420142
196520132
206520132
216421132
226621121
236621121
246622111
256622111
266623101
276623101
28682390
29682390
30692380

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 9 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
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
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 6:20 AM to 6:42 AM, and sunset from 7:06 PM to 6:23 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:207:06
212.76:207:05
312.76:217:03
412.76:227:02
512.66:237:01
612.66:236:59
712.66:246:58
812.56:256:56
912.56:266:55
1012.46:276:53
1112.46:276:52
1212.46:286:50
1312.36:296:49
1412.36:306:47
1512.36:306:46
1612.26:316:44
1712.26:326:43
1812.16:336:41
1912.16:336:40
2012.16:346:38
2112.06:356:37
2212.06:366:35
2312.06:366:34
2411.96:376:32
2511.96:386:31
2611.86:396:29
2711.86:406:28
2811.86:406:26
2911.76:416:25
3011.76:426:23

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 2.69 kWh/m² to a high of 7.69 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
26.3Intense
36.2Intense
46.2Intense
56.1Intense
66.1Intense
76.0Intense
86.0Bright
95.9Bright
105.9Bright
115.8Bright
125.8Bright
135.8Bright
145.7Bright
155.7Bright
165.6Bright
175.6Bright
185.5Bright
195.5Bright
205.5Bright
215.4Bright
225.4Bright
235.3Bright
245.3Bright
255.3Bright
265.2Bright
275.2Bright
285.2Bright
295.1Bright
305.1Bright
Planning a trip in September

Hazard calendar for Bou Saâda

In seasonPeak

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

Bou Saâda 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 Bou Saâda?

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

5.4
Sightseeing
6th-best month of the year
7.5
Beach & pool
2nd-best month of the year

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

What to pack for Bou Saâda in September

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

In September, Bou Saâda sees daytime highs around 31°C and nights near 19°C. Pack light clothes. Worth having: sun protection. About 6 days see rain.

light clothessun protection

UV index in Bou Saâda 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 Bou Saâda peaks around July 16 at about 9 (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 16UV 9Dec 20UV 2
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar7High
Apr7High
May8Very high
Jun8Very high
Jul9Very high
Aug8Very high
Sep8Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Bou Saâda 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 Bou Saâda is worst in June — around 35 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (November, 18 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 1734 µg/m³Nov 2318 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb20Moderate
Mar26Moderate
Apr30Moderate
May31Moderate
Jun35Moderate
Jul32Moderate
Aug31Moderate
Sep33Moderate
Oct26Moderate
Nov18Moderate
Dec19Moderate
Location & terrain

Where is Bou Saâda?

Bou Saâda sits at 35.2°N, 4.2°E, 611 m above sea level, in Algeria. The nearest listed city is ’Aïn el Melh, 41 km away.

Topography around Bou Saâda

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

Within 3 km, the terrain around Bou Saâda has significant variations in elevation — a maximum elevation change of 405 m around an average of 643 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,154 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,299 m.

The land around Bou Saâda is covered by grassland (45%), bare terrain (27%) and artificial surfaces (25%) within 3 km, grassland (49%) and bare terrain (38%) within 16 km, and bare terrain (46%) and grassland (38%) within 80 km.

3 km
405 m
16 km
1,154 m
80 km
1,299 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: ’Aïn el Melh 41 km · Ain el Hadjel 58 km · M'Sila 65 km · Dar Chioukh 72 km · Sidi Aïssa 84 km · Melouza 86 km · Feidh el Botma 87 km · Birine 98 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 Bou Saâda (35.2086°, 4.174°, elevation 611 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).