Aboisso weather in September

In September, Aboisso sees average daytime highs of 28°C and overnight lows near 23°C, with 167 mm of rain across 27.7 wet days and about 12 hours of daylight. It is the 10th-warmest and 7th-wettest month of the year here.

Day-to-day highs hold fairly steady near 28°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 Aboisso's 8th-clearest and 3rd-windiest month. For the whole year in context, see Aboisso's year-round climate.

Daytime high
28°
10th warmest
Overnight low
23°
4th coldest
Rainfall
167 mm
27.7 wet days
Daylight
12 hours
6:06 AM – 6:08 PM
Cloud cover
83%
8th clearest
Wind
7 km/h
3rd windiest
Solar energy
4.08 kWh/m²
Travel score
3.2
out of 10

Aboisso is city of côte d'ivoire.

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 28°C through the month.

A typical September day in Aboisso reaches about 28°C in the afternoon and slips back to 23°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 about 1°C warmer than 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
92823
102823
112823
122823
132823
142823
152823
162823
172823
182923
192923
202923
212923
222923
232923
242923
252923
262923
272923
282923
292923
302923

How September really feels in Aboisso

Once humidity and wind are folded in, September averages 6 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
6
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.

Aboisso weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 7th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°8616.811.73.8
Feb32° / 24°11420.811.82.9
Mar32° / 24°17726.4122.6
Apr31° / 24°17626.612.12.6
May30° / 23°24629.712.22.6
Jun29° / 23°26128.612.33.0
Jul28° / 22°16225.412.33.9
Aug28° / 22°9623.112.24.2
Sep28° / 23°16727.7123.2
Oct30° / 23°22130.211.92.8
Nov31° / 23°17327.511.82.7
Dec31° / 23°10521.611.73.5

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 7% of September, with mostly cloudy or overcast conditions the remaining 93%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1595
2694
3694
4694
5694
6694
7694
8694
9694
10793
11793
12793
13793
14793
15793
16793
17793
18793
19793
20793
21793
22793
23793
24793
25892
26892
27892
28991
29991
301090

Chance of precipitation in September

Any precipitation

Aboisso gets around 167 mm of rain over 27.7 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 92% and peaks near 96% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
187
287
388
488
588
689
789
889
990
1090
1190
1291
1391
1491
1592
1692
1792
1893
1993
2093
2194
2294
2395
2495
2595
2695
2795
2896
2996
3096

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 (%)Miserable (%)
11990
21990
31990
41990
51990
61990
71990
81990
91990
101990
111990
121990
131990
141990
150991
160991
170991
180991
190991
200991
210991
220991
230991
240991
250982
260982
270982
280982
290973
300973

Wind in September

Winds average 7 km/h in September.

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.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
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 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 6:09 AM to 6:03 AM, and sunset from 6:16 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:096:16
212.16:096:15
312.16:096:15
412.16:096:14
512.16:096:14
612.16:086:13
712.16:086:13
812.16:086:12
912.16:086:12
1012.16:086:11
1112.16:076:11
1212.16:076:10
1312.06:076:10
1412.06:076:09
1512.06:066:09
1612.06:066:08
1712.06:066:08
1812.06:066:07
1912.06:066:06
2012.06:056:06
2112.06:056:05
2212.06:056:05
2312.06:056:04
2412.06:056:04
2512.06:046:03
2612.06:046:03
2712.06:046:02
2812.06:046:02
2912.06:046:01
3012.06:036:01

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.08 kWh/m².

For context, solar energy here swings from a low near 3.85 kWh/m² to a high of 5.09 kWh/m² in March across the year — September's 4.08 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.0Moderate
24.0Bright
34.0Bright
44.0Bright
54.0Bright
64.0Bright
74.0Bright
84.0Bright
94.0Bright
104.0Bright
114.0Bright
124.0Bright
134.1Bright
144.1Bright
154.1Bright
164.1Bright
174.1Bright
184.1Bright
194.1Bright
204.1Bright
214.1Bright
224.1Bright
234.2Bright
244.2Bright
254.2Bright
264.2Bright
274.2Bright
284.2Bright
294.2Bright
304.3Bright
Planning a trip in September

Hazard calendar for Aboisso

In seasonPeak

None of Aboisso's seasonal hazards are active in September. The full-year calendar below shows when the rainy season, cyclone risk and dust haze do peak.

Aboisso sees seasonal dust haze (January–April), heaviest in February.

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

Is September a good time to visit Aboisso?

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

3.2
Sightseeing
5th-best month of the year
3.9
Beach & pool
8th-best month of the year

September is a weaker month for outdoor sightseeing in Aboisso.

What to pack for Aboisso in September

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

In September, Aboisso sees daytime highs around 28°C and nights near 23°C. Pack light clothes and rain gear. About 28 days see rain.

light clothesrain gear

Sea temperature near Aboisso in September

The nearest coast averages about 25°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea at the nearest coast (about 39 km away) is warmest in May at about 29°C and coldest in August near 24°C.

The water stays above 20°C all year — warm enough for a swim any month.

22°24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb28Warm
Mar28Tropical
Apr28Tropical
May29Tropical
Jun27Warm
Jul25Warm
Aug24Warm
Sep25Warm
Oct26Warm
Nov28Tropical
Dec28Tropical

UV index in Aboisso 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 Aboisso peaks around April 11 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 16 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeVery highApr 11UV 13Dec 16UV 9
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar13Extreme
Apr14Extreme
May11Extreme
Jun11Extreme
Jul9Very high
Aug11Extreme
Sep12Extreme
Oct12Extreme
Nov10Very high
Dec9Very high

Air quality in Aboisso 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 Aboisso is worst in January — around 64 µg/m³ PM2.5 (unhealthy), about 4.4× the cleanest month (September, 15 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorJan 1763 µg/m³Sep 1115 µg/m³
PM2.5 (µg/m³)Level
Jan64Unhealthy
Feb55Poor
Mar35Poor
Apr33Moderate
May22Moderate
Jun20Moderate
Jul19Moderate
Aug15Moderate
Sep15Moderate
Oct19Moderate
Nov26Moderate
Dec52Poor
Location & terrain

Where is Aboisso?

Aboisso sits at 5.5°N, 3.2°W, 12 m above sea level, in Ivory Coast. The nearest listed city is Ahigbé Koffikro, 20 km away.

BonouaEluboBianouanGrand-Bassam

Topography around Aboisso

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

Within 3 km, the terrain around Aboisso has only modest variations in elevation — a maximum elevation change of 85 m around an average of 24 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 192 m; within 80 km, significant variations in elevation — a maximum elevation change of 450 m.

The land around Aboisso is covered by trees (77%) within 3 km, trees (85%) within 16 km, and trees (75%) and water (22%) within 80 km.

3 km
85 m
16 km
192 m
80 km
450 m
treesshrubsgrasslandartificial surfaceswater
September weather nearby: Ahigbé Koffikro 20 km · Maféré 20 km · Adiaké 23 km · Aboisso Comoé 37 km · Bonoua 48 km · Elubo 53 km · Bianouan 61 km · Grand-Bassam 65 km

Ivory Coast travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
230 V · 50 Hz
Prices
≈ 37% of US
price level, 2025
GDP per capita
$3,050
2025
Happiness
5.1 / 10
World Happiness, 2025
Safe drinking water
36%
of population, 2024
Road deaths
24.1
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Very low
EF EPI 393

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 Aboisso (5.4678°, -3.2071°, elevation 12 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).