Bousso weather in September

In September, Bousso sees average daytime highs of 31°C and overnight lows near 23°C, with 145 mm of rain across 20.7 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 30°C in the first days to 32°C by the end. The sky is clear or mostly clear about 10% 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 Bousso's 11th-clearest and 12th-windiest month. For the whole year in context, see Bousso's year-round climate.

Daytime high
31°
11th warmest
Overnight low
23°
6th coldest
Rainfall
145 mm
20.7 wet days
Daylight
12 h 06 min
5:46 AM – 5:49 PM
Cloud cover
71%
11th clearest
Wind
7 km/h
12th windiest
Solar energy
5.41 kWh/m²
Travel score
3.2
out of 10

Bousso is city and subprefecture of 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 30°C in the first days to 32°C by the end.

A typical September day in Bousso reaches about 31°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 33°C. Set against its neighbours, September runs about 1°C warmer than August and about 3°C cooler than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13023
23023
33023
43023
53023
63023
73123
83123
93123
103123
113123
123123
133123
143123
153123
163123
173123
183123
193123
203123
213223
223223
233223
243223
253223
263223
273223
283223
293224
303224

How September really feels in Bousso

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.

Bousso 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
Jan35° / 18°0011.53.3
Feb38° / 21°0011.71.4
Mar41° / 25°10.411.90.0
Apr41° / 28°113.812.20.0
May38° / 27°4610.812.51.1
Jun35° / 25°7712.512.62.5
Jul31° / 24°1662212.63.1
Aug30° / 23°2222612.33.1
Sep31° / 23°14520.712.13.2
Oct34° / 24°428.111.83.1
Nov36° / 21°10.311.52.4
Dec35° / 19°0011.43.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 10% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 19% of September, with mostly cloudy or overcast conditions the remaining 71%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12179
22278
32377
42377
52377
62377
72377
82377
92476
102575
112674
122674
132773
142773
152773
162872
172971
183070
193070
203169
213268
223466
233565
243664
253664
263862
273961
284060
294258
304456

Chance of precipitation in September

Any precipitation

Bousso gets around 145 mm of rain over 20.7 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 69% and peaks near 80% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
180
280
379
479
578
678
777
876
976
1075
1174
1274
1373
1472
1571
1670
1769
1868
1967
2065
2164
2263
2361
2460
2559
2657
2756
2854
2952
3051

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 81% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
10919
20919
309010
409010
508911
608812
708812
808713
908614
1008515
1108416
1208317
1308218
1408119
1508020
1607921
1707822
1807723
1907624
2007525
2107525
2207426
2317326
2417326
2517326
2617425
2717425
2817425
2927424
3027424

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 5:47 AM to 5:45 AM, and sunset from 5:59 PM to 5:40 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.25:475:59
212.25:475:58
312.25:475:58
412.25:475:57
512.25:475:56
612.25:465:56
712.15:465:55
812.15:465:55
912.15:465:54
1012.15:465:53
1112.15:465:53
1212.15:465:52
1312.15:465:51
1412.15:465:51
1512.15:465:50
1612.15:465:49
1712.05:465:49
1812.05:465:48
1912.05:465:47
2012.05:455:47
2112.05:455:46
2212.05:455:45
2312.05:455:45
2412.05:455:44
2512.05:455:43
2612.05:455:43
2711.95:455:42
2811.95:455:41
2911.95:455:41
3011.95:455:40

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.41 kWh/m².

For context, solar energy here swings from a low near 4.8 kWh/m² to a high of 7.03 kWh/m² in March across the year — September's 5.41 kWh/m² sits near the bottom.

0246151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.1Bright
35.1Bright
45.1Bright
55.1Bright
65.2Bright
75.2Bright
85.2Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.4Bright
145.4Bright
155.4Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.6Bright
215.6Bright
225.6Bright
235.6Bright
245.6Bright
255.7Bright
265.7Bright
275.7Bright
285.7Bright
295.7Bright
305.7Bright
Planning a trip in September

Hazard calendar for Bousso

In seasonPeak

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

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

Bousso sees seasonal dust haze (March–June), heaviest in March.

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

Is September a good time to visit Bousso?

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

3.2
Sightseeing
2nd-best month of the year
4.8
Beach & pool
6th-best month of the year

September is a weaker month for outdoor sightseeing in Bousso.

What to pack for Bousso in September

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

In September, Bousso sees daytime highs around 31°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 21 days see rain.

light clothesrain gearsun protection

UV index in Bousso 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 Bousso peaks around March 13 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 14 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeExtremeVery highMar 13UV 13Dec 14UV 8
UV index (midday)Level
Jan10Extreme
Feb12Extreme
Mar13Extreme
Apr11Extreme
May10Very high
Jun11Extreme
Jul12Extreme
Aug13Extreme
Sep11Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Bousso 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 Bousso is worst in March — around 67 µg/m³ PM2.5 (unhealthy), about 4.8× the cleanest month (July, 14 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecPoorUnhealthyPoorModeratePoorMar 1365 µg/m³Jul 1815 µg/m³
PM2.5 (µg/m³)Level
Jan51Poor
Feb58Unhealthy
Mar67Unhealthy
Apr40Poor
May22Moderate
Jun19Moderate
Jul14Moderate
Aug17Moderate
Sep19Moderate
Oct26Moderate
Nov29Moderate
Dec46Poor
Location & terrain

Where is Bousso?

Bousso sits at 10.5°N, 16.7°E, 337 m above sea level, in Chad. The nearest listed city is Déressia, 94 km away.

LaïGuelendengBéréBongorGounou GayaYagouaKelo

Topography around Bousso

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

Within 3 km, the terrain around Bousso has only modest variations in elevation — a maximum elevation change of 15 m around an average of 331 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 19 m; within 80 km, only modest variations in elevation — a maximum elevation change of 42 m.

The land around Bousso is covered by grassland (41%) and cropland (30%) within 3 km, shrubs (47%) and grassland (36%) within 16 km, and shrubs (48%) and grassland (43%) within 80 km.

3 km
15 m
16 km
19 m
80 km
42 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Déressia 94 km · Laï 129 km · Guelendeng 136 km · Béré 143 km · Bongor 148 km · Gounou Gaya 162 km · Yagoua 162 km · Kelo 164 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 Bousso (10.4847°, 16.7108°, elevation 337 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).