Kaïs weather in September

In September, Kaïs sees average daytime highs of 28°C and overnight lows near 16°C, with 30 mm of rain across 7.1 wet days and about 12.2 hours of daylight. It is the 4th-warmest and 7th-wettest month of the year here.

Highs ease over the month, from about 31°C in the first days to 26°C by the end. The sky is clear or mostly clear about 53% 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 Kaïs's 4th-clearest and 12th-windiest month. For the whole year in context, see Kaïs's year-round climate.

Daytime high
28°
4th warmest
Overnight low
16°
9th coldest
Rainfall
30 mm
7.1 wet days
Daylight
12 h 12 min
6:20 AM – 6:33 PM
Cloud cover
42%
4th clearest
Wind
7 km/h
12th windiest
Solar energy
5.3 kWh/m²
Travel score
6.4
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs ease over the month, from about 31°C in the first days to 26°C by the end.

A typical September day in Kaïs reaches about 28°C in the afternoon and slips back to 16°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 23°C and 33°C. Set against its neighbours, September runs about 5°C cooler than August and about 5°C warmer than October.

10°20°30°40°151015202530
Avg high (°C)Avg low (°C)
13118
23118
33118
43018
53018
63017
73017
83017
92917
102917
112917
122917
132916
142916
152816
162816
172816
182816
192816
202815
212715
222715
232715
242715
252715
262615
272614
282614
292614
302614

How September really feels in Kaïs

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.

Kaïs weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysSnow daysDaylight (hours)Travel score
Jan11° / 336.91.49.93.2
Feb13° / 2561.310.73.9
Mar16° / 387.80.711.75.5
Apr20° / 417.30.212.96.9
May25° / 12°376.9013.87.5
Jun31° / 17°204.5014.45.5
Jul35° / 20°103.2014.23.4
Aug34° / 20°164.8013.33.9
Sep28° / 16°307.1012.26.4
Oct23° / 12°315.6011.17.7
Nov17° / 304.90.110.16.0
Dec12° / 285.60.69.63.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 53% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 20% 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 (%)
18416
28416
38218
48218
58119
68020
78020
87822
97822
107723
117624
127426
137426
147327
157228
167129
176931
186931
196832
206733
216733
226733
236634
246634
256634
266535
276634
286634
296634
306634

Chance of precipitation in September

Any precipitation

Kaïs gets around 30 mm of rain over 7.1 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 23% and peaks near 24% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
123
223
324
424
524
624
724
824
924
1024
1123
1223
1323
1423
1523
1623
1724
1824
1924
2024
2123
2223
2323
2423
2523
2623
2722
2822
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 62% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
154406
253416
352426
452435
552435
652435
752435
853425
954415
1054406
1155396
1256386
1359365
1460355
1561345
1662335
1763325
1864315
1966304
2067294
2167294
2269283
2369283
2470282
2571272
2671272
2772271
2873261
2973261
3074251

Wind in September

Winds average 7 km/h in September, the calmest month.

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

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

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 6:08 AM to 6:31 AM, and sunset from 6:56 PM to 6:12 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.86:086:56
212.76:096:54
312.76:106:53
412.76:116:51
512.66:126:50
612.66:126:48
712.66:136:47
812.56:146:45
912.56:156:44
1012.46:156:42
1112.46:166:41
1212.46:176:39
1312.36:186:38
1412.36:186:36
1512.36:196:35
1612.26:206:33
1712.26:216:32
1812.16:226:30
1912.16:226:29
2012.16:236:27
2112.06:246:26
2212.06:256:24
2312.06:256:23
2411.96:266:21
2511.96:276:20
2611.86:286:18
2711.86:296:17
2811.86:296:15
2911.76:306:14
3011.76:316:12

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 2.46 kWh/m² to a high of 7.4 kWh/m² in July across the year — September's 5.3 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.8Bright
45.8Bright
55.7Bright
65.7Bright
75.6Bright
85.6Bright
95.6Bright
105.5Bright
115.5Bright
125.5Bright
135.4Bright
145.4Bright
155.3Bright
165.3Bright
175.2Bright
185.2Bright
195.2Bright
205.1Bright
215.1Bright
225.0Bright
235.0Bright
245.0Bright
254.9Bright
264.9Bright
274.8Bright
284.8Bright
294.8Bright
304.7Bright
Planning a trip in September

Hazard calendar for Kaïs

In seasonPeak

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

Kaïs sees seasonal dust haze (April–August), heaviest in June.

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

Is September a good time to visit Kaïs?

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

6.4
Sightseeing
4th-best month of the year
7.4
Beach & pool
2nd-best month of the year

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

What to pack for Kaïs in September

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

In September, Kaïs sees daytime highs around 28°C and nights near 16°C. Pack light clothes. Worth having: sun protection. About 7 days see rain.

light clothessun protection

UV index in Kaïs 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 Kaïs peaks around July 15 at about 10 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 15UV 10Dec 21UV 2
UV index (midday)Level
Jan3Moderate
Feb5Moderate
Mar6High
Apr7High
May8Very high
Jun9Very high
Jul10Very high
Aug8Very high
Sep8Very high
Oct6High
Nov4Moderate
Dec2Moderate

Air quality in Kaïs 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 Kaïs is worst in June — around 32 µg/m³ PM2.5 (moderate), about 1.8× the cleanest month (December, 18 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecModerateJun 1432 µg/m³Dec 1718 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb20Moderate
Mar24Moderate
Apr30Moderate
May30Moderate
Jun32Moderate
Jul29Moderate
Aug29Moderate
Sep30Moderate
Oct26Moderate
Nov19Moderate
Dec18Moderate
Location & terrain

Where is Kaïs?

Kaïs sits at 35.5°N, 6.9°E, 933 m above sea level, in Algeria. The nearest listed city is Khenchela, 21 km away.

Topography around Kaïs

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

Within 3 km, the terrain around Kaïs has significant variations in elevation — a maximum elevation change of 294 m around an average of 943 m above sea level; within 16 km, very significant variations in elevation — a maximum elevation change of 1,269 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,171 m.

The land around Kaïs is covered by cropland (51%) and grassland (22%) within 3 km, cropland (58%) and trees (21%) within 16 km, and cropland (45%) and grassland (33%) within 80 km.

3 km
294 m
16 km
1,269 m
80 km
2,171 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Khenchela 21 km · Oum el Bouaghi 46 km · Aïn Kercha 52 km · Aïn Fakroun 53 km · Aïn Beïda 54 km · Arris 59 km · Tazoult-Lambese 60 km · Aïn M’Lila 68 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 Kaïs (35.4947°, 6.9249°, elevation 933 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).