Mangalmé weather in September

In September, Mangalmé sees average daytime highs of 32°C and overnight lows near 23°C, with 123 mm of rain across 16.5 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 22% 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 Mangalmé's 10th-clearest and 12th-windiest month. For the whole year in context, see Mangalmé's year-round climate.

Daytime high
32°
11th warmest
Overnight low
23°
6th coldest
Rainfall
123 mm
16.5 wet days
Daylight
12 h 06 min
5:34 AM – 5:38 PM
Cloud cover
62%
10th clearest
Wind
7 km/h
12th windiest
Solar energy
5.77 kWh/m²
Travel score
3.2
out of 10

Mangalmé is place in Guéra, 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 Mangalmé reaches about 32°C in the afternoon and slips back to 23°C overnight — a 9°C spread between the day's warmth and the night's chill. On most days the high lands between 30°C and 34°C. Set against its neighbours, September runs about 2°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
93223
103223
113223
123223
133223
143223
153223
163223
173223
183223
193323
203323
213323
223323
233323
243323
253323
263323
273323
283423
293423
303423

How September really feels in Mangalmé

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.

Mangalmé 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°0011.43.9
Feb37° / 20°0011.62.2
Mar40° / 23°10.211.90.4
Apr41° / 26°72.212.30.0
May40° / 27°297.712.60.3
Jun37° / 26°6013.212.71.3
Jul33° / 24°18123.212.72.5
Aug31° / 23°27826.212.42.9
Sep32° / 23°12316.512.13.2
Oct35° / 23°194.311.72.7
Nov36° / 21°0011.42.6
Dec35° / 18°0011.33.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 22% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 22% of September, with mostly cloudy or overcast conditions the remaining 56%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12773
22872
32872
43070
53169
63367
73367
83565
93565
103763
113862
124060
134159
144357
154456
164555
174753
184951
194852
205149
215248
225347
235446
245545
255644
265842
275941
286139
296238
306337

Chance of precipitation in September

Any precipitation

Mangalmé gets around 123 mm of rain over 16.5 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 55% and peaks near 78% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
178
278
377
476
575
673
772
870
969
1067
1165
1263
1361
1458
1556
1654
1752
1849
1947
2045
2143
2242
2340
2438
2537
2636
2734
2833
2932
3031

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 94% of days. Sticky, muggy-or-worse air turns up on roughly 99% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)Miserable (%)
100001000
200001000
300001000
400001000
500001000
600001000
700001000
800001000
90001990
100001990
110001981
120001981
130002971
140002971
150002971
160003961
170003961
180004951
190005941
200005941
210006931
220017911
230018901
240019891
2500110881
2600112861
2700213850
2801215820
2911217790
3011219770

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 5:34 AM to 5:34 AM, and sunset from 5:48 PM to 5:28 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:345:48
212.25:345:48
312.25:345:47
412.25:345:46
512.25:345:46
612.25:345:45
712.25:345:44
812.25:345:44
912.15:345:43
1012.15:345:42
1112.15:345:42
1212.15:345:41
1312.15:345:40
1412.15:345:39
1512.15:345:39
1612.15:345:38
1712.15:345:37
1812.05:345:36
1912.05:345:36
2012.05:345:35
2112.05:345:34
2212.05:345:34
2312.05:345:33
2412.05:345:32
2512.05:345:31
2611.95:345:31
2711.95:345:30
2811.95:345:29
2911.95:345:29
3011.95:345:28

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.77 kWh/m².

For context, solar energy here swings from a low near 5.05 kWh/m² to a high of 7.1 kWh/m² in March across the year — September's 5.77 kWh/m² sits near the bottom.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.5Bright
65.5Bright
75.5Bright
85.6Bright
95.6Bright
105.6Bright
115.7Bright
125.7Bright
135.7Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
226.0Bright
236.0Bright
246.0Intense
256.0Intense
266.0Intense
276.0Intense
286.0Intense
296.0Intense
306.0Intense
Planning a trip in September

Hazard calendar for Mangalmé

In seasonPeak

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

Mangalmé's monsoon runs July–August, when most of the year's rain falls.

Mangalmé sees seasonal dust haze (March–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 Mangalmé?

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

3.2
Sightseeing
3rd-best month of the year
5.3
Beach & pool
6th-best month of the year

September is a weaker month for outdoor sightseeing in Mangalmé.

What to pack for Mangalmé in September

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

In September, Mangalmé sees daytime highs around 32°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

UV index in Mangalmé 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 Mangalmé peaks around August 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 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 highAug 11UV 13Dec 16UV 8
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar12Extreme
Apr11Extreme
May10Extreme
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep11Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Mangalmé 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 Mangalmé is worst in March — around 62 µg/m³ PM2.5 (unhealthy), about 3.4× the cleanest month (August, 18 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorPoorModerateMar 1659 µg/m³Aug 1519 µg/m³
PM2.5 (µg/m³)Level
Jan29Moderate
Feb41Poor
Mar62Unhealthy
Apr40Poor
May24Moderate
Jun25Moderate
Jul20Moderate
Aug18Moderate
Sep21Moderate
Oct31Moderate
Nov31Moderate
Dec25Moderate
Location & terrain

Where is Mangalmé?

Mangalmé sits at 12.4°N, 19.6°E, 519 m above sea level, in Chad. The nearest listed city is Mongo, 102 km away.

MongoUmm HājarBitkineAm TimanAtiGoz BeidaAbéchéBokoro

Topography around Mangalmé

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

Within 3 km, the terrain around Mangalmé has significant variations in elevation — a maximum elevation change of 341 m around an average of 541 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 413 m; within 80 km, large variations in elevation — a maximum elevation change of 957 m.

The land around Mangalmé is covered by grassland (70%) within 3 km, grassland (82%) within 16 km, and grassland (70%) and shrubs (28%) within 80 km.

3 km
341 m
16 km
413 m
80 km
957 m
treesshrubsgrasslandcroplandartificial surfaces
September weather nearby: Mongo 102 km · Umm Hājar 105 km · Bitkine 158 km · Am Timan 163 km · Ati 168 km · Goz Beida 196 km · Abéché 210 km · Bokoro 278 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 Mangalmé (12.3546°, 19.6139°, elevation 519 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).