Aku weather in September

In September, Aku sees average daytime highs of 29°C and overnight lows near 22°C, with 295 mm of rain across 28.4 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 11 h 54 min by month's end. Set against the rest of the year, September is Aku's 11th-clearest and 9th-windiest month. For the whole year in context, see Aku's year-round climate.

Daytime high
29°
10th warmest
Overnight low
22°
5th coldest
Rainfall
295 mm
28.4 wet days
Daylight
12 hours
6:24 AM – 6:26 PM
Cloud cover
86%
11th clearest
Wind
7 km/h
9th windiest
Solar energy
4.05 kWh/m²
Travel score
3.0
out of 10

Aku is town in Enugu State.

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 Aku 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 27°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
92922
102922
112922
122922
132922
142922
152922
162922
172922
182922
192922
202922
212922
222922
232922
242922
252922
262922
272922
282922
292922
302922

How September really feels in Aku

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.

Aku 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
Jan34° / 22°102.111.73.4
Feb35° / 24°235.111.82.7
Mar34° / 24°7112122.7
Apr32° / 24°1321712.13.0
May31° / 24°21824.612.32.9
Jun29° / 23°26826.912.43.0
Jul28° / 22°24728.512.43.3
Aug28° / 22°24427.112.23.6
Sep29° / 22°29528.4123.0
Oct30° / 23°2642711.93.0
Nov31° / 23°608.911.74.2
Dec33° / 22°81.611.64.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 4% of September, with mostly cloudy or overcast conditions the remaining 96%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1397
2397
3397
4397
5397
6397
7397
8397
9397
10397
11496
12496
13496
14496
15496
16496
17496
18496
19496
20496
21496
22496
23496
24595
25595
26595
27595
28595
29595
30595

Chance of precipitation in September

Any precipitation

Aku gets around 295 mm of rain over 28.4 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 94% and peaks near 95% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
194
294
394
495
595
695
795
895
995
1095
1195
1295
1395
1495
1595
1694
1794
1894
1994
2094
2194
2294
2394
2494
2594
2694
2794
2894
2994
3094

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 99% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)
1298
2298
3298
4199
5199
6199
7199
8199
9199
10199
11199
12199
13199
14199
15199
16199
17199
18199
19199
20199
21199
22199
23199
240100
250100
260100
270100
280100
290100
300100

Wind in September

Winds average 7 km/h in September.

Across September, daily wind ranges from about 6 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
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 h 06 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 12 minutes over September. Sunrise moves from 6:27 AM to 6:22 AM, and sunset from 6:34 PM to 6:18 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:276:34
212.16:266:34
312.16:266:33
412.16:266:33
512.16:266:32
612.16:266:32
712.16:266:31
812.16:256:31
912.16:256:30
1012.16:256:29
1112.16:256:29
1212.16:256:28
1312.16:256:28
1412.06:246:27
1512.06:246:27
1612.06:246:26
1712.06:246:26
1812.06:246:25
1912.06:236:24
2012.06:236:24
2112.06:236:23
2212.06:236:23
2312.06:236:22
2412.06:236:22
2512.06:226:21
2612.06:226:21
2712.06:226:20
2812.06:226:20
2912.06:226:19
3011.96:226:18

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.05 kWh/m².

For context, solar energy here swings from a low near 3.89 kWh/m² to a high of 5.74 kWh/m² in February across the year — September's 4.05 kWh/m² sits near the bottom.

012345151015202530
Solar energy (kWh/m²)Level
14.0Moderate
24.0Moderate
34.0Moderate
44.0Moderate
54.0Moderate
64.0Moderate
74.0Moderate
84.0Bright
94.0Bright
104.0Bright
114.0Bright
124.0Bright
134.0Bright
144.1Bright
154.1Bright
164.1Bright
174.1Bright
184.1Bright
194.1Bright
204.1Bright
214.1Bright
224.1Bright
234.1Bright
244.1Bright
254.1Bright
264.1Bright
274.1Bright
284.1Bright
294.1Bright
304.1Bright
Planning a trip in September

Hazard calendar for Aku

In seasonPeak

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

Aku's rainy season runs May–October, when most of the year's rain falls.

Aku 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 Aku?

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
3.8
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Aku.

What to pack for Aku in September

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

In September, Aku sees daytime highs around 29°C and nights near 22°C. Pack light clothes and rain gear. About 28 days see rain.

light clothesrain gear

UV index in Aku 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 Aku peaks around September 20 at about 12 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 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 highSep 20UV 12Dec 19UV 8
UV index (midday)Level
Jan9Very high
Feb10Very high
Mar12Extreme
Apr10Extreme
May10Extreme
Jun11Extreme
Jul10Extreme
Aug10Very high
Sep12Extreme
Oct12Extreme
Nov10Very high
Dec8Very high

Air quality in Aku 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 Aku is worst in January — around 172 µg/m³ PM2.5 (very unhealthy), about 3.6× the cleanest month (July, 47 µg/m³).

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

0306090120150180JanFebMarAprMayJunJulAugSepOctNovDecVery unhealthyUnhealthyPoorUnhealthyJan 15169 µg/m³Jul 1948 µg/m³
PM2.5 (µg/m³)Level
Jan172Very unhealthy
Feb149Unhealthy
Mar88Unhealthy
Apr75Unhealthy
May57Unhealthy
Jun53Poor
Jul47Poor
Aug50Poor
Sep57Unhealthy
Oct75Unhealthy
Nov98Unhealthy
Dec158Very unhealthy
Location & terrain

Where is Aku?

Aku sits at 6.7°N, 7.3°E, 299 m above sea level, in Nigeria. The nearest listed city is Nsukka, 19 km away.

Topography around Aku

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

Within 3 km, the terrain around Aku has only modest variations in elevation — a maximum elevation change of 232 m around an average of 315 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 499 m; within 80 km, significant variations in elevation — a maximum elevation change of 570 m.

The land around Aku is covered by grassland (49%) and trees (36%) within 3 km, trees (70%) and grassland (23%) within 16 km, and trees (67%) within 80 km.

3 km
232 m
16 km
499 m
80 km
570 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Nsukka 19 km · Enugu-Ezike 34 km · Enugu 36 km · Eha Amufu 49 km · Otukpa 58 km · Awka 62 km · Enugu-Ukwu 69 km · Awgu 73 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 Aku (6.709°, 7.3183°, elevation 299 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).