Kas weather in September

In September, Kas sees average daytime highs of 31°C and overnight lows near 20°C, with 78 mm of rain across 14.9 wet days and about 12.1 hours of daylight. It is the 8th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 29°C in the first days to 32°C by the end. The sky is clear or mostly clear about 36% of the time in September, and the air most often feels muggy.

Daylight stretches from about 12 h 12 min at the start of September to 11 h 54 min by month's end. Set against the rest of the year, September is Kas's 10th-clearest and 12th-windiest month. For the whole year in context, see Kas's year-round climate.

Daytime high
31°
8th warmest
Overnight low
20°
5th coldest
Rainfall
78 mm
14.9 wet days
Daylight
12 h 06 min
7:15 AM – 7:19 PM
Cloud cover
52%
10th clearest
Wind
7 km/h
12th windiest
Solar energy
6.12 kWh/m²
Travel score
4.2
out of 10

Kas is town in South Darfur, Sudan.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 29°C in the first days to 32°C by the end.

A typical September day in Kas reaches about 31°C in the afternoon and slips back to 20°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 33°C. Set against its neighbours, September runs about 2°C warmer than August and about 2°C cooler than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12920
22920
32920
43020
53020
63020
73020
83020
93020
103020
113020
123020
133020
143020
153120
163120
173120
183120
193120
203120
213120
223120
233220
243220
253220
263220
273220
283220
293220
303220

How September really feels in Kas

Once humidity and wind are folded in, September averages 2 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
2
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.

Kas weather by month

How September compares with the rest of the year at a glance. September is the 8th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 14°0011.36.6
Feb32° / 17°0011.65.1
Mar35° / 20°10.111.93.6
Apr36° / 23°3112.32.5
May36° / 23°235.212.62.3
Jun34° / 22°6013.312.72.8
Jul30° / 21°16324.712.73.4
Aug29° / 20°17123.912.43.9
Sep31° / 20°7814.912.14.2
Oct33° / 20°173.811.74.2
Nov32° / 18°0011.45.2
Dec30° / 15°0011.36.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 25% of September, with mostly cloudy or overcast conditions the remaining 39%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15644
25545
35644
45743
55842
65842
75941
85941
96040
106139
116139
126238
136337
146337
156436
166436
176436
186436
196436
206436
216436
226436
236337
246337
256337
266337
276337
286337
296337
306436

Chance of precipitation in September

Any precipitation

Kas gets around 78 mm of rain over 14.9 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 50% and peaks near 69% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
169
268
367
466
565
663
762
861
960
1059
1158
1256
1354
1453
1551
1649
1747
1845
1943
2042
2140
2239
2338
2437
2536
2635
2734
2833
2932
3031

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the muggy band about 64% of days. Sticky, muggy-or-worse air turns up on roughly 64% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
101891
201891
311989
412988
5121087
6121186
7131284
8131383
9231382
10241480
11241579
12351676
13361774
14471871
15471970
16582067
17692164
187102261
198112358
209122455
2110132552
2211142649
2313142746
2414152743
2516162841
2618162838
2719172836
2822172833
2924172831
3026172829

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 8 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
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 12 min at the start of September to 11 h 54 min by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 18 minutes over September. Sunrise moves from 7:15 AM to 7:15 AM, and sunset from 7:30 PM to 7:09 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.27:157:30
212.27:157:29
312.27:157:29
412.27:157:28
512.27:157:27
612.27:157:26
712.27:157:26
812.27:157:25
912.27:157:24
1012.17:157:24
1112.17:157:23
1212.17:157:22
1312.17:157:21
1412.17:157:21
1512.17:157:20
1612.17:157:19
1712.17:157:19
1812.07:157:18
1912.07:157:17
2012.07:157:16
2112.07:157:16
2212.07:157:15
2312.07:157:14
2412.07:157:13
2512.07:157:13
2611.97:157:12
2711.97:157:11
2811.97:157:11
2911.97:157:10
3011.97:157:09

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.12 kWh/m².

For context, solar energy here swings from a low near 5.62 kWh/m² to a high of 7.58 kWh/m² in April across the year — September's 6.12 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.9Bright
25.9Bright
35.9Bright
45.9Bright
56.0Bright
66.0Bright
76.0Bright
86.0Intense
96.0Intense
106.0Intense
116.0Intense
126.1Intense
136.1Intense
146.1Intense
156.1Intense
166.1Intense
176.2Intense
186.2Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.2Intense
246.2Intense
256.2Intense
266.2Intense
276.3Intense
286.3Intense
296.3Intense
306.3Intense
Planning a trip in September

Hazard calendar for Kas

In seasonPeak

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

Kas's rainy season runs July–September, when most of the year's rain falls.

Kas sees seasonal dust haze (March–July), heaviest in April.

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

Is September a good time to visit Kas?

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

4.2
Sightseeing
5th-best month of the year
6.0
Beach & pool
8th-best month of the year

September is a reasonable time to visit Kas for sightseeing.

What to pack for Kas in September

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

In September, Kas sees daytime highs around 31°C and nights near 20°C. Pack light clothes, rain gear and sun protection. About 15 days see rain.

light clothesrain gearsun protection

UV index in Kas in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Kas peaks around August 18 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 9 (very high).

The index reaches 3 or more — the level where the WHO recommends sun protection — every month of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highAug 18UV 13Dec 14UV 9
UV index (midday)Level
Jan10Extreme
Feb12Extreme
Mar12Extreme
Apr12Extreme
May11Extreme
Jun12Extreme
Jul10Extreme
Aug13Extreme
Sep11Extreme
Oct11Extreme
Nov10Very high
Dec9Very high

Air quality in Kas 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 Kas is worst in March — around 54 µg/m³ PM2.5 (poor), about 2.7× the cleanest month (August, 20 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateMar 2053 µg/m³Aug 2220 µg/m³
PM2.5 (µg/m³)Level
Jan27Moderate
Feb37Poor
Mar54Poor
Apr48Poor
May38Poor
Jun34Moderate
Jul28Moderate
Aug20Moderate
Sep21Moderate
Oct25Moderate
Nov22Moderate
Dec24Moderate
Location & terrain

Where is Kas?

Kas sits at 12.5°N, 24.3°E, 944 m above sea level, in Sudan. The nearest listed city is Nyala, 83 km away.

KabkābīyahSh'īarīahRahad al BardiTullusGereidaEl Fasher

Topography around Kas

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

Within 3 km, the terrain around Kas has only modest variations in elevation — a maximum elevation change of 38 m around an average of 943 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 281 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,332 m.

The land around Kas is covered by grassland (57%) and artificial surfaces (21%) within 3 km, grassland (82%) within 16 km, and grassland (78%) within 80 km.

3 km
38 m
16 km
281 m
80 km
2,332 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Nyala 83 km · Zalinjay 99 km · Kabkābīyah 129 km · Sh'īarīah 141 km · Rahad al Bardi 141 km · Tullus 160 km · Gereida 166 km · El Fasher 170 km

Sudan travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / D / F / G
230 V · 50 Hz
Prices
≈ 215% of US
price level, 2025
GDP per capita
$1,165
2025
Happiness
4.1 / 10
World Happiness, 2017
Homicide rate
5.1
per 100k, 2008
Road deaths
26.8
per 100k/yr, 2019
Income group
Low
World Bank
English
Very low
EF EPI 421

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 Kas (12.5097°, 24.2852°, elevation 944 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).