Banikoara weather in September

In September, Banikoara sees average daytime highs of 30°C and overnight lows near 23°C, with 141 mm of rain across 17.8 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 31°C by the end. The sky is clear or mostly clear about 18% 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 Banikoara's 10th-clearest and 12th-windiest month. For the whole year in context, see Banikoara's year-round climate.

Daytime high
30°
11th warmest
Overnight low
23°
6th coldest
Rainfall
141 mm
17.8 wet days
Daylight
12 h 06 min
6:43 AM – 6:46 PM
Cloud cover
67%
10th clearest
Wind
7 km/h
12th windiest
Solar energy
5.45 kWh/m²
Travel score
3.8
out of 10

Banikoara is commune of Benin.

Density
9/km²
people per km²

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 31°C by the end.

A typical September day in Banikoara reaches about 30°C in the afternoon and slips back to 23°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 32°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
73023
83023
93023
103023
113023
123023
133023
143023
153023
163023
173123
183123
193123
203123
213123
223123
233123
243123
253123
263123
273123
283123
293223
303223

How September really feels in Banikoara

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.

Banikoara 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° / 20°00.111.44.3
Feb36° / 23°10.311.62.4
Mar39° / 26°51.111.90.7
Apr39° / 27°235.812.20.6
May36° / 26°6312.712.51.7
Jun33° / 25°8314.612.62.9
Jul31° / 24°15820.712.63.4
Aug29° / 23°23924.412.43.4
Sep30° / 23°14117.812.13.8
Oct34° / 23°396.711.73.5
Nov36° / 21°10.211.52.8
Dec34° / 20°0011.43.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% 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 63%. Skies tend to open up as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12278
22278
32476
42476
52575
62674
72872
82872
92971
102971
113070
123169
133169
143268
153466
163466
173565
183763
193862
204060
214159
224456
234555
244852
254951
265149
275347
285446
295545
305644

Chance of precipitation in September

Any precipitation

Banikoara gets around 141 mm of rain over 17.8 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 59% and peaks near 75% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
175
273
372
471
571
670
769
868
967
1066
1165
1264
1363
1462
1561
1660
1759
1857
1956
2055
2153
2252
2350
2449
2547
2646
2745
2844
2942
3041

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 86% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)Miserable (%)
10955
20955
30946
40946
50937
60928
70919
80919
909010
1008911
1108812
1208713
1308713
1408614
1508515
1608416
1708416
1808317
1908218
2008218
2108119
2208119
2308020
2408020
2508020
2608020
2708020
2818019
2918019
3018118

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
18calm
28calm
38calm
48calm
58calm
68calm
78calm
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 6:43 AM to 6:42 AM, and sunset from 6:57 PM to 6:37 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:436:57
212.26:436:56
312.26:436:55
412.26:436:55
512.26:436:54
612.26:436:53
712.26:436:53
812.16:436:52
912.16:436:51
1012.16:436:51
1112.16:436:50
1212.16:436:49
1312.16:436:48
1412.16:436:48
1512.16:436:47
1612.16:436:46
1712.16:436:46
1812.06:436:45
1912.06:436:44
2012.06:436:44
2112.06:426:43
2212.06:426:42
2312.06:426:42
2412.06:426:41
2512.06:426:40
2612.06:426:40
2711.96:426:39
2811.96:426:38
2911.96:426:38
3011.96:426:37

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.45 kWh/m².

For context, solar energy here swings from a low near 4.71 kWh/m² to a high of 6.72 kWh/m² in March across the year — September's 5.45 kWh/m² sits near the bottom.

0246151015202530
Solar energy (kWh/m²)Level
14.9Bright
24.9Bright
35.0Bright
45.0Bright
55.0Bright
65.1Bright
75.1Bright
85.1Bright
95.2Bright
105.2Bright
115.2Bright
125.3Bright
135.3Bright
145.4Bright
155.4Bright
165.4Bright
175.5Bright
185.5Bright
195.6Bright
205.6Bright
215.6Bright
225.7Bright
235.7Bright
245.8Bright
255.8Bright
265.8Bright
275.9Bright
285.9Bright
295.9Bright
305.9Bright
Planning a trip in September

Hazard calendar for Banikoara

In seasonPeak

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

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

Banikoara sees seasonal dust haze (January–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 Banikoara?

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

3.8
Sightseeing
3rd-best month of the year
5.4
Beach & pool
6th-best month of the year

September is a weaker month for outdoor sightseeing in Banikoara.

What to pack for Banikoara in September

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

In September, Banikoara sees daytime highs around 30°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 Banikoara in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Banikoara peaks around September 11 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highSep 11UV 12Dec 17UV 8
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar10Very high
Apr12Extreme
May11Extreme
Jun11Extreme
Jul11Extreme
Aug12Extreme
Sep12Extreme
Oct10Extreme
Nov9Very high
Dec8Very high

Air quality in Banikoara 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 Banikoara is worst in November — around 88 µg/m³ PM2.5 (unhealthy), about 7.0× the cleanest month (August, 13 µg/m³).

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

0306090JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModerateUnhealthyNov 2387 µg/m³Aug 1213 µg/m³
PM2.5 (µg/m³)Level
Jan74Unhealthy
Feb86Unhealthy
Mar69Unhealthy
Apr47Poor
May25Moderate
Jun19Moderate
Jul14Moderate
Aug13Moderate
Sep18Moderate
Oct33Moderate
Nov88Unhealthy
Dec85Unhealthy
Location & terrain

Where is Banikoara?

Banikoara sits at 11.3°N, 2.4°E, 312 m above sea level, in Benin. The nearest listed city is Kandi, 58 km away.

KandiKérouNamponkoréSinendéDiapagaMalanvilleBembèrèkèTobré

Topography around Banikoara

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

Within 3 km, the terrain around Banikoara has only modest variations in elevation — a maximum elevation change of 39 m around an average of 311 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 105 m; within 80 km, significant variations in elevation — a maximum elevation change of 332 m.

The land around Banikoara is covered by cropland (71%) within 3 km, cropland (71%) within 16 km, and cropland (40%), shrubs (28%) and grassland (28%) within 80 km.

3 km
39 m
16 km
105 m
80 km
332 m
treesshrubsgrasslandcroplandartificial surfaces
September weather nearby: Kandi 58 km · Kérou 64 km · Namponkoré 87 km · Sinendé 106 km · Diapaga 111 km · Malanville 121 km · Bembèrèkè 122 km · Tobré 127 km

Benin travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
220 V · 50 Hz
Prices
≈ 34% of US
price level, 2025
GDP per capita
$1,658
2025
Happiness
4.4 / 10
World Happiness, 2025
Safe drinking water
18%
of population, 2024
Homicide rate
1.1
per 100k, 2017
Road deaths
26.8
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Very low
EF EPI 406
Religion
Muslim 28%Roman Catholic 26%Protestant 14%Vodoun 12%

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 Banikoara (11.2985°, 2.4386°, elevation 312 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).