Benin City weather in September

In September, Benin City sees average daytime highs of 29°C and overnight lows near 22°C, with 309 mm of rain across 29.2 wet days and about 12 hours of daylight. It is the 10th-warmest and 1st-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 0% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 06 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Benin City's 12th-clearest and 7th-windiest month. For the whole year in context, see Benin City's year-round climate.

Daytime high
29°
10th warmest
Overnight low
22°
5th coldest
Rainfall
309 mm
29.2 wet days
Daylight
12 hours
6:31 AM – 6:33 PM
Cloud cover
88%
12th clearest
Wind
6 km/h
7th windiest
Solar energy
3.74 kWh/m²
Travel score
3.0
out of 10

Benin City is capital city of Edo State, Nigeria.

Density
1,480/km²
people per km²
Founded
1899

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 29°C through the month.

A typical September day in Benin City reaches about 29°C in the afternoon and slips back to 22°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 30°C. Set against its neighbours, September runs on par with August and about 1°C cooler than October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12822
22822
32822
42822
52822
62822
72822
82822
92822
102822
112822
122822
132822
142822
152822
162922
172923
182923
192923
202923
212923
222923
232923
242923
252923
262923
272923
282923
292923
302923

How September really feels in Benin City

Once humidity and wind are folded in, September averages 9 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
9
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.

Benin City weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 1st-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 22°338.911.73.5
Feb33° / 24°5814.711.82.8
Mar32° / 24°14623.8122.5
Apr31° / 24°20525.612.12.6
May31° / 23°25628.712.32.6
Jun29° / 23°29529.312.42.8
Jul28° / 22°29329.912.33.2
Aug28° / 22°26628.312.23.5
Sep29° / 22°30929.2123.0
Oct30° / 23°26329.611.92.8
Nov31° / 23°9318.611.73.4
Dec32° / 22°288.611.64.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 2% of September, with mostly cloudy or overcast conditions the remaining 98%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1298
2298
3298
4298
5298
6298
7298
8298
9298
10298
11298
12298
13298
14298
15298
16298
17298
18298
19298
20298
21298
22397
23397
24397
25397
26397
27397
28397
29397
30397

Chance of precipitation in September

Any precipitation

Benin City gets around 309 mm of rain over 29.2 wet days in September, the wettest month. The line is the day-by-day chance of measurable precipitation.

Day to day, the chance of measurable rain averages around 97% and peaks near 98% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
196
296
397
497
597
698
798
898
998
1098
1198
1298
1398
1498
1598
1698
1798
1898
1998
2098
2197
2297
2397
2497
2597
2697
2797
2897
2997
3097

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 98% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
1991
2991
3991
4991
5991
6991
7991
8991
9991
10991
11991
12991
13991
14991
15991
16991
17991
18982
19982
20982
21982
22973
23973
24973
25964
26964
27955
28955
29946
30937

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 06 min at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over September. Sunrise moves from 6:34 AM to 6:28 AM, and sunset from 6:41 PM to 6:25 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:346:41
212.16:336:40
312.16:336:40
412.16:336:39
512.16:336:39
612.16:336:38
712.16:336:38
812.16:326:37
912.16:326:37
1012.16:326:36
1112.16:326:36
1212.16:326:35
1312.16:316:35
1412.06:316:34
1512.06:316:33
1612.06:316:33
1712.06:316:32
1812.06:306:32
1912.06:306:31
2012.06:306:31
2112.06:306:30
2212.06:306:30
2312.06:296:29
2412.06:296:28
2512.06:296:28
2612.06:296:27
2712.06:296:27
2812.06:296:26
2912.06:286:26
3012.06:286:25

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.74 kWh/m².

For context, solar energy here swings from a low near 3.54 kWh/m² to a high of 5.26 kWh/m² in January across the year — September's 3.74 kWh/m² sits near the bottom.

01234151015202530
Solar energy (kWh/m²)Level
13.6Moderate
23.6Moderate
33.6Moderate
43.6Moderate
53.6Moderate
63.6Moderate
73.6Moderate
83.7Moderate
93.7Moderate
103.7Moderate
113.7Moderate
123.7Moderate
133.7Moderate
143.7Moderate
153.8Moderate
163.8Moderate
173.8Moderate
183.8Moderate
193.8Moderate
203.8Moderate
213.8Moderate
223.8Moderate
233.9Moderate
243.9Moderate
253.9Moderate
263.9Moderate
273.9Moderate
283.9Moderate
293.9Moderate
303.9Moderate
Planning a trip in September

Hazard calendar for Benin City

In seasonPeak

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

Benin City's rainy season runs March–October, when most of the year's rain falls.

Benin City sees seasonal dust haze (December–April), heaviest in February.

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

Is September a good time to visit Benin City?

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

3.0
Sightseeing
6th-best month of the year
3.6
Beach & pool
11th-best month of the year

September is a weaker month for outdoor sightseeing in Benin City.

What to pack for Benin City in September

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

In September, Benin City sees daytime highs around 29°C and nights near 22°C. Pack light clothes and rain gear. About 29 days see rain.

light clothesrain gear

UV index in Benin City 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 Benin City peaks around March 22 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 21 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 highExtremeExtremeVery highMar 22UV 12Dec 21UV 8
UV index (midday)Level
Jan8Very high
Feb9Very high
Mar12Extreme
Apr12Extreme
May11Extreme
Jun11Extreme
Jul11Extreme
Aug9Very high
Sep12Extreme
Oct12Extreme
Nov10Very high
Dec8Very high

Air quality in Benin City 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 Benin City is worst in January — around 166 µg/m³ PM2.5 (very unhealthy), about 4.4× the cleanest month (August, 38 µg/m³).

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

0306090120150180JanFebMarAprMayJunJulAugSepOctNovDecVery unhealthyUnhealthyPoorUnhealthyJan 16164 µg/m³Aug 1339 µg/m³
PM2.5 (µg/m³)Level
Jan166Very unhealthy
Feb147Unhealthy
Mar85Unhealthy
Apr82Unhealthy
May65Unhealthy
Jun53Poor
Jul42Poor
Aug38Poor
Sep47Poor
Oct64Unhealthy
Nov76Unhealthy
Dec148Unhealthy
Location & terrain

Where is Benin City?

Benin City sits at 6.3°N, 5.6°E, 88 m above sea level, in Nigeria. The nearest listed city is Sapele, 50 km away.

UromiUbiajaWarriOwoOgwashi-Uku

Topography around Benin City

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

Within 3 km, the terrain around Benin City has only modest variations in elevation — a maximum elevation change of 66 m around an average of 79 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 167 m; within 80 km, significant variations in elevation — a maximum elevation change of 420 m.

The land around Benin City is covered by artificial surfaces (87%) within 3 km, trees (46%) and artificial surfaces (39%) within 16 km, and trees (76%) within 80 km.

3 km
66 m
16 km
167 m
80 km
420 m
treesshrubsgrasslandartificial surfaceswatermangroves
September weather nearby: Sapele 50 km · Agbor 64 km · Ekpoma 73 km · Uromi 88 km · Ubiaja 91 km · Warri 92 km · Owo 96 km · Ogwashi-Uku 101 km

Nigeria travel facts

Travel advisory
Level 3
Reconsider Travel
Power plugs
Type D / G
230 V · 50 Hz
Prices
≈ 13% of US
price level, 2025
GDP per capita
$1,224
2025
Happiness
4.8 / 10
World Happiness, 2025
Safe drinking water
30%
of population, 2024
Homicide rate
15.7
per 100k, 2023
Road deaths
20.7
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
High
EF EPI 569
Religion
Muslim 54%other Christian 35%Roman Catholic 11%other 1%

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 Benin City (6.3381°, 5.6258°, elevation 88 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).