Biskra weather in September

In September, Biskra sees average daytime highs of 35°C and overnight lows near 24°C, with 17 mm of rain across 2.5 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 37°C in the first days to 32°C by the end. The sky is clear or mostly clear about 68% 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 Biskra's 7th-clearest and 10th-windiest month. For the whole year in context, see Biskra's year-round climate.

Daytime high
35°
4th warmest
Overnight low
24°
9th coldest
Rainfall
17 mm
2.5 wet days
Daylight
12 h 12 min
6:25 AM – 6:38 PM
Cloud cover
32%
7th clearest
Wind
10 km/h
10th windiest
Solar energy
5.73 kWh/m²
Travel score
3.4
out of 10

Biskra is city in Algeria.

Density
1,605/km²
people per km²

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 37°C in the first days to 32°C by the end.

A typical September day in Biskra reaches about 35°C in the afternoon and slips back to 24°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 39°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
23726
33726
43726
53725
63725
73625
83625
93625
103625
113524
123524
133524
143524
153524
163424
173423
183423
193423
203423
213323
223322
233322
243322
253322
263222
273221
283221
293221
303221

How September really feels in Biskra

Once humidity and wind are folded in, September averages 27 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
27
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.

Biskra 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
Jan17° / 132.39.96.8
Feb19° / 81.910.77.8
Mar23° / 11°152.511.78.5
Apr27° / 15°162.512.98.0
May32° / 20°61.613.84.9
Jun38° / 26°20.714.31.6
Jul41° / 28°10.214.10.0
Aug40° / 28°40.913.30.3
Sep35° / 24°172.512.23.4
Oct29° / 18°132.311.17.0
Nov22° / 12°122.210.28.3
Dec18° / 112.29.77.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 68% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 12% of September, with mostly cloudy or overcast conditions the remaining 20%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18812
28713
38713
48614
58515
68416
78317
88317
98317
108218
118218
128119
138020
148020
157921
167921
177822
187822
197822
207822
217723
227723
237624
247723
257723
267723
277723
287723
297723
307723

Chance of precipitation in September

Any precipitation

Biskra gets around 17 mm of rain over 2.5 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 8% and peaks near 10% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
16
26
37
47
57
67
77
87
97
107
117
126
136
146
156
167
177
187
197
208
218
229
239
249
2510
2610
2710
2810
2910
3010

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 48% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
14139183
24039183
34039183
43939184
53938184
64038184
74037185
84136175
94235175
104434175
114534165
124733165
134832165
144931164
155130154
165130154
175030164
185229163
195229163
205229163
215329162
225329162
235329162
245229172
255329162
265329162
275329162
285428162
295628151
305628151

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 11 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
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
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 6:14 AM to 6:36 AM, and sunset from 7:00 PM to 6:17 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:147:00
212.76:156:58
312.76:156:57
412.76:166:56
512.66:176:54
612.66:186:53
712.56:186:51
812.56:196:50
912.56:206:48
1012.46:206:47
1112.46:216:45
1212.46:226:44
1312.36:236:42
1412.36:236:41
1512.36:246:39
1612.26:256:38
1712.26:266:36
1812.16:266:35
1912.16:276:33
2012.16:286:32
2112.06:296:30
2212.06:296:29
2312.06:306:27
2411.96:316:26
2511.96:326:24
2611.86:336:23
2711.86:336:22
2811.86:346:20
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 5.73 kWh/m².

For context, solar energy here swings from a low near 2.86 kWh/m² to a high of 7.77 kWh/m² in June across the year — September's 5.73 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
16.3Intense
26.3Intense
36.3Intense
46.2Intense
56.2Intense
66.1Intense
76.1Intense
86.0Intense
96.0Intense
106.0Bright
115.9Bright
125.9Bright
135.8Bright
145.8Bright
155.8Bright
165.7Bright
175.7Bright
185.7Bright
195.6Bright
205.6Bright
215.5Bright
225.5Bright
235.4Bright
245.4Bright
255.3Bright
265.3Bright
275.3Bright
285.2Bright
295.2Bright
305.2Bright
Planning a trip in September

Hazard calendar for Biskra

In seasonPeak

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

Biskra 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 Biskra?

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

3.4
Sightseeing
9th-best month of the year
6.8
Beach & pool
4th-best month of the year

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

What to pack for Biskra in September

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

In September, Biskra sees daytime highs around 35°C and nights near 24°C. Pack light clothes. Worth having: sun protection.

light clothessun protection

UV index in Biskra 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 Biskra peaks around June 18 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 highHighModerateJun 18UV 9Dec 20UV 2
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr6High
May8Very high
Jun9Very high
Jul8Very high
Aug8Very high
Sep7Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Biskra 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 Biskra is worst in June — around 46 µg/m³ PM2.5 (poor), about 2.6× the cleanest month (December, 18 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateJun 1745 µg/m³Dec 1418 µg/m³
PM2.5 (µg/m³)Level
Jan21Moderate
Feb20Moderate
Mar28Moderate
Apr37Poor
May38Poor
Jun46Poor
Jul39Poor
Aug36Poor
Sep35Moderate
Oct27Moderate
Nov19Moderate
Dec18Moderate
Location & terrain

Where is Biskra?

Biskra sits at 34.9°N, 5.7°E, 115 m above sea level, in Algeria. The nearest listed city is Sidi Okba, 19 km away.

Topography around Biskra

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

Within 3 km, the terrain around Biskra has only modest variations in elevation — a maximum elevation change of 101 m around an average of 115 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 480 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,325 m.

The land around Biskra is covered by artificial surfaces (59%) and bare terrain (34%) within 3 km, bare terrain (87%) within 16 km, and bare terrain (66%) and grassland (23%) within 80 km.

3 km
101 m
16 km
480 m
80 km
2,325 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Sidi Okba 19 km · Tolga 35 km · Aïn Touta 61 km · Barika 68 km · Arris 72 km · Zeribet el Oued 74 km · Ouled Djellal 77 km · N’Gaous 79 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 Biskra (34.8504°, 5.728°, elevation 115 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).