Ouaké weather in September

In September, Ouaké sees average daytime highs of 29°C and overnight lows near 22°C, with 215 mm of rain across 25.7 wet days and about 12.1 hours of daylight. It is the 10th-warmest and 2nd-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 2% 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 Ouaké's 10th-clearest and 11th-windiest month. For the whole year in context, see Ouaké's year-round climate.

Daytime high
29°
10th warmest
Overnight low
22°
5th coldest
Rainfall
215 mm
25.7 wet days
Daylight
12 h 06 min
6:47 AM – 6:50 PM
Cloud cover
76%
10th clearest
Wind
6 km/h
11th windiest
Solar energy
4.74 kWh/m²
Travel score
3.4
out of 10

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 Ouaké reaches about 29°C in the afternoon and slips back to 22°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 31°C. Set against its neighbours, September runs about 1°C warmer than August and about 2°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
112922
122922
132922
142922
152922
162922
172922
182922
192922
202922
212922
222922
232922
242922
252922
262922
272922
283022
293022
303022

How September really feels in Ouaké

Once humidity and wind are folded in, September averages 15 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
15
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.

Ouaké weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 20°10.311.54.8
Feb35° / 22°71.311.73.3
Mar36° / 24°244.611.92.4
Apr34° / 24°7713.312.22.7
May32° / 23°12319.612.43.2
Jun30° / 22°13320.612.63.8
Jul28° / 22°19626.712.53.7
Aug28° / 22°26128.412.33.6
Sep29° / 22°21525.712.13.4
Oct31° / 21°11517.211.83.9
Nov33° / 20°101.711.64.3
Dec33° / 20°10.211.44.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% 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 78%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11288
21387
31387
41387
51387
61387
71387
81585
91585
101684
111783
121783
131882
141981
152179
162278
172377
182476
192575
202773
212773
222872
232872
243070
253070
263070
273169
283169
293268
303169

Chance of precipitation in September

Any precipitation

Ouaké gets around 215 mm of rain over 25.7 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 86% and peaks near 91% on the wettest days. The odds ease toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
191
291
390
490
590
689
789
888
988
1087
1187
1287
1387
1487
1587
1686
1786
1886
1985
2085
2184
2284
2383
2483
2582
2681
2781
2880
2980
3079

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 97% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)
1496
2397
3397
4397
5397
6397
7397
8397
9397
10397
11397
12397
13397
14397
15397
16397
17397
18397
19298
20298
21298
22298
23298
24298
25298
26298
27298
28199
29199
30199

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 6 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
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

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 6:49 AM to 6:46 AM, and sunset from 7:00 PM to 6:42 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.26:497:00
212.26:486:59
312.26:486:59
412.26:486:58
512.26:486:57
612.16:486:57
712.16:486:56
812.16:486:55
912.16:486:55
1012.16:486:54
1112.16:486:54
1212.16:486:53
1312.16:486:52
1412.16:476:52
1512.16:476:51
1612.16:476:50
1712.06:476:50
1812.06:476:49
1912.06:476:48
2012.06:476:48
2112.06:476:47
2212.06:476:46
2312.06:476:46
2412.06:466:45
2512.06:466:45
2612.06:466:44
2712.06:466:43
2811.96:466:43
2911.96:466:42
3011.96:466:42

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.74 kWh/m².

For context, solar energy here swings from a low near 4.17 kWh/m² to a high of 6.37 kWh/m² in March across the year — September's 4.74 kWh/m² sits near the bottom.

0246151015202530
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.4Bright
44.4Bright
54.4Bright
64.4Bright
74.5Bright
84.5Bright
94.5Bright
104.5Bright
114.6Bright
124.6Bright
134.7Bright
144.7Bright
154.7Bright
164.8Bright
174.8Bright
184.8Bright
194.8Bright
204.9Bright
214.9Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.1Bright
275.1Bright
285.1Bright
295.1Bright
305.2Bright
Planning a trip in September

Hazard calendar for Ouaké

In seasonPeak

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

Ouaké's monsoon runs May–September, when most of the year's rain falls.

Ouaké sees seasonal dust haze (January–May), heaviest in February.

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

Is September a good time to visit Ouaké?

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

3.4
Sightseeing
8th-best month of the year
4.2
Beach & pool
10th-best month of the year

September is a weaker month for outdoor sightseeing in Ouaké.

What to pack for Ouaké in September

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

In September, Ouaké sees daytime highs around 29°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 26 days see rain.

light clothesrain gearsun protection

UV index in Ouaké in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Ouaké peaks around April 17 at about 13 (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 highApr 17UV 13Dec 17UV 8
UV index (midday)Level
Jan9Very high
Feb10Extreme
Mar11Extreme
Apr13Extreme
May12Extreme
Jun11Extreme
Jul11Extreme
Aug12Extreme
Sep13Extreme
Oct11Extreme
Nov9Very high
Dec8Very high

Air quality in Ouaké 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 Ouaké is worst in February — around 79 µg/m³ PM2.5 (unhealthy), about 5.3× the cleanest month (August, 15 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyFeb 1177 µg/m³Aug 1015 µg/m³
PM2.5 (µg/m³)Level
Jan70Unhealthy
Feb79Unhealthy
Mar52Poor
Apr41Poor
May24Moderate
Jun19Moderate
Jul15Moderate
Aug15Moderate
Sep20Moderate
Oct33Moderate
Nov49Poor
Dec71Unhealthy
Location & terrain

Where is Ouaké?

Ouaké sits at 9.7°N, 1.4°E, 396 m above sea level, in Benin. The nearest listed city is Kara, 25 km away.

BoukoumbéTchambaNatitingou

Topography around Ouaké

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

Within 3 km, the terrain around Ouaké has only modest variations in elevation — a maximum elevation change of 86 m around an average of 393 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 328 m; within 80 km, large variations in elevation — a maximum elevation change of 699 m.

The land around Ouaké is covered by cropland (63%) within 3 km, cropland (53%), grassland (22%) and shrubs (20%) within 16 km, and shrubs (41%) and cropland (29%) within 80 km.

3 km
86 m
16 km
328 m
80 km
699 m
treesshrubsgrasslandcroplandartificial surfaces
September weather nearby: Kara 25 km · Kopargo 26 km · Djougou 31 km · Niamtougou 33 km · Bafilo 37 km · Boukoumbé 65 km · Tchamba 70 km · Natitingou 71 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 Ouaké (9.6617°, 1.3847°, elevation 396 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).