Guelendeng weather in September

In September, Guelendeng sees average daytime highs of 32°C and overnight lows near 23°C, with 119 mm of rain across 18 wet days and about 12.1 hours of daylight. It is the 11th-warmest and 3rd-wettest month of the year here.

Highs climb over the month, from about 31°C in the first days to 33°C by the end. The sky is clear or mostly clear about 17% of the time in September, and the air most often feels oppressive.

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 Guelendeng's 10th-clearest and 12th-windiest month. For the whole year in context, see Guelendeng's year-round climate.

Daytime high
32°
11th warmest
Overnight low
23°
7th coldest
Rainfall
119 mm
18 wet days
Daylight
12 h 06 min
5:50 AM – 5:54 PM
Cloud cover
68%
10th clearest
Wind
7 km/h
12th windiest
Solar energy
5.67 kWh/m²
Travel score
3.3
out of 10

Guelendeng is human settlement in Mayo-Kebbi Est, Chad.

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 31°C in the first days to 33°C by the end.

A typical September day in Guelendeng reaches about 32°C in the afternoon and slips back to 23°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 34°C. Set against its neighbours, September runs about 1°C warmer than August and about 3°C cooler than October.

20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13123
23123
33123
43123
53123
63123
73123
83123
93123
103123
113123
123123
133123
143123
153223
163223
173223
183224
193224
203224
213224
223224
233224
243224
253324
263324
273324
283324
293324
303324

How September really feels in Guelendeng

Once humidity and wind are folded in, September averages 30 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
30
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.

Guelendeng weather by month

How September compares with the rest of the year at a glance. September is the 11th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan34° / 17°0011.44.0
Feb37° / 20°0011.62.1
Mar40° / 24°00.111.90.1
Apr41° / 27°72.512.20.0
May39° / 27°338.212.50.6
Jun36° / 26°5810.712.62.1
Jul32° / 24°13819.912.63.0
Aug30° / 23°22024.412.43.2
Sep32° / 23°1191812.13.3
Oct35° / 23°30611.82.7
Nov36° / 21°00.211.52.4
Dec34° / 18°0011.43.8

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 17% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 21% of September, with mostly cloudy or overcast conditions the remaining 63%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12575
22674
32674
42773
52872
62971
73169
83268
93268
103367
113466
123466
133565
143763
153763
163763
173961
183961
193961
204060
214159
224258
234357
244555
254555
264654
274852
284852
294951
305050

Chance of precipitation in September

Any precipitation

Guelendeng gets around 119 mm of rain over 18 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 60% and peaks near 74% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
174
273
372
471
571
670
769
869
968
1067
1166
1265
1364
1463
1562
1661
1760
1858
1957
2055
2154
2252
2351
2449
2548
2646
2745
2843
2942
3040

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the oppressive band about 78% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
10008713
20008614
30008614
40008614
50008614
60008515
70008515
80008416
90008317
100008218
110008218
120008119
130008020
140007921
150007822
160007723
170007624
180007525
190007426
200007426
210007426
220017227
230017227
240017326
250117226
260127225
270127225
280137224
290137323
301147321

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 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 5:51 AM to 5:50 AM, and sunset from 6:04 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:516:04
212.25:516:03
312.25:516:03
412.25:516:02
512.25:516:01
612.25:516:01
712.25:516:00
812.15:515:59
912.15:515:59
1012.15:515:58
1112.15:515:57
1212.15:515:57
1312.15:515:56
1412.15:505:55
1512.15:505:55
1612.15:505:54
1712.05:505:53
1812.05:505:53
1912.05:505:52
2012.05:505:51
2112.05:505:51
2212.05:505:50
2312.05:505:49
2412.05:505:48
2512.05:505:48
2612.05:505:47
2711.95:505:46
2811.95:505:46
2911.95:505:45
3011.95:505:45

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.67 kWh/m².

For context, solar energy here swings from a low near 4.97 kWh/m² to a high of 7.07 kWh/m² in March across the year — September's 5.67 kWh/m² sits near the bottom.

0246151015202530
Solar energy (kWh/m²)Level
15.2Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.4Bright
75.4Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.6Bright
135.6Bright
145.6Bright
155.7Bright
165.7Bright
175.7Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.9Bright
245.9Bright
255.9Bright
265.9Bright
275.9Bright
285.9Bright
296.0Bright
306.0Bright
Planning a trip in September

Hazard calendar for Guelendeng

In seasonPeak

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

Guelendeng's monsoon runs July–September, when most of the year's rain falls.

Guelendeng sees seasonal dust haze (February–July), heaviest in March.

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

Is September a good time to visit Guelendeng?

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

3.3
Sightseeing
3rd-best month of the year
5.2
Beach & pool
6th-best month of the year

September is a weaker month for outdoor sightseeing in Guelendeng.

What to pack for Guelendeng in September

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

In September, Guelendeng sees daytime highs around 32°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 18 days see rain.

light clothesrain gearsun protection

UV index in Guelendeng 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 Guelendeng peaks around March 15 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeVery highMar 15UV 13Dec 15UV 8
UV index (midday)Level
Jan10Extreme
Feb12Extreme
Mar13Extreme
Apr11Extreme
May9Very high
Jun10Extreme
Jul12Extreme
Aug12Extreme
Sep11Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Guelendeng 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 Guelendeng is worst in March — around 81 µg/m³ PM2.5 (unhealthy), about 4.6× the cleanest month (July, 18 µg/m³).

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorMar 1080 µg/m³Jul 2218 µg/m³
PM2.5 (µg/m³)Level
Jan70Unhealthy
Feb79Unhealthy
Mar81Unhealthy
Apr53Poor
May30Moderate
Jun25Moderate
Jul18Moderate
Aug19Moderate
Sep21Moderate
Oct30Moderate
Nov36Poor
Dec62Unhealthy
Location & terrain

Where is Guelendeng?

Guelendeng sits at 10.9°N, 15.6°E, 321 m above sea level, in Chad. The nearest listed city is Maga, 67 km away.

DourbaliBogoFiangaGuidiguis

Topography around Guelendeng

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

Within 3 km, the terrain around Guelendeng has only modest variations in elevation — a maximum elevation change of 22 m around an average of 314 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 27 m; within 80 km, only modest variations in elevation — a maximum elevation change of 48 m.

The land around Guelendeng is covered by grassland (55%) and cropland (23%) within 3 km, grassland (75%) within 16 km, and grassland (46%) and shrubs (30%) within 80 km.

3 km
22 m
16 km
27 m
80 km
48 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Maga 67 km · Yagoua 73 km · Bongor 73 km · Mandelia 96 km · Dourbali 105 km · Bogo 105 km · Fianga 120 km · Guidiguis 127 km

Chad travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / D / E / F
220 V · 50 Hz
Prices
≈ 35% of US
price level, 2025
GDP per capita
$1,022
2025
Happiness
4.4 / 10
World Happiness, 2025
Safe drinking water
6%
of population, 2024
Road deaths
32.4
per 100k/yr, 2019
Income group
Low
World Bank
Religion
Muslim 52%Protestant 24%Roman Catholic 20%none 3%

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 Guelendeng (10.9176°, 15.5501°, elevation 321 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).