Arrah weather in September

In September, Arrah sees average daytime highs of 30°C and overnight lows near 23°C, with 125 mm of rain across 21.7 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 30°C through the month. The sky is clear or mostly clear about 1% 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 Arrah's 7th-clearest and 8th-windiest month. For the whole year in context, see Arrah's year-round climate.

Daytime high
30°
10th warmest
Overnight low
23°
5th coldest
Rainfall
125 mm
21.7 wet days
Daylight
12 hours
6:09 AM – 6:11 PM
Cloud cover
78%
7th clearest
Wind
7 km/h
8th windiest
Solar energy
4.05 kWh/m²
Travel score
3.6
out of 10

Arrah 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 30°C through the month.

A typical September day in Arrah 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 on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12923
22923
32923
42923
52923
62923
73023
83023
93023
103023
113023
123023
133023
143023
153023
163023
173023
183023
193023
203023
213023
223023
233023
243023
253023
263023
273023
283023
293023
303023

How September really feels in Arrah

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.

Arrah 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°173.611.73.9
Feb35° / 24°438.311.82.8
Mar34° / 24°8015.5122.5
Apr33° / 24°9217.912.12.7
May32° / 24°10920.512.32.9
Jun30° / 23°11120.812.43.5
Jul29° / 22°8918.512.34.2
Aug29° / 22°9317.612.24.3
Sep30° / 23°12521.7123.6
Oct30° / 23°10120.511.93.6
Nov31° / 23°4710.211.74.3
Dec32° / 22°174.111.64.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 1% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 84%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1892
2991
3991
41090
51090
61189
71189
81288
91288
101387
111387
121486
131486
141585
151684
161783
171783
181882
191882
201981
212080
222080
232179
242179
252278
262278
272377
282377
292476
302476

Chance of precipitation in September

Any precipitation

Arrah gets around 125 mm of rain over 21.7 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 72% and peaks near 74% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
166
267
368
468
569
669
770
870
970
1070
1170
1271
1371
1471
1571
1672
1772
1873
1973
2074
2174
2274
2374
2474
2574
2674
2774
2874
2974
3074

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 95% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)
1991
2991
3991
4892
5892
6892
7892
8793
9793
10793
11793
12793
13694
14694
15694
16595
17595
18595
19595
20496
21496
22496
23397
24397
25298
26298
27298
28298
29298
30199

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
58calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
157calm
167calm
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
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 6:12 AM to 6:07 AM, and sunset from 6:19 PM to 6:04 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:126:19
212.16:126:19
312.16:116:18
412.16:116:18
512.16:116:17
612.16:116:17
712.16:116:16
812.16:116:16
912.16:106:15
1012.16:106:15
1112.16:106:14
1212.16:106:14
1312.16:106:13
1412.06:096:12
1512.06:096:12
1612.06:096:11
1712.06:096:11
1812.06:096:10
1912.06:096:10
2012.06:086:09
2112.06:086:08
2212.06:086:08
2312.06:086:07
2412.06:086:07
2512.06:086:06
2612.06:076:06
2712.06:076:05
2812.06:076:05
2912.06:076:04
3011.96:076:04

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 3.67 kWh/m² to a high of 5.21 kWh/m² in February across the year — September's 4.05 kWh/m² sits near the bottom.

012345151015202530
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
43.9Moderate
53.9Moderate
63.9Moderate
73.9Moderate
83.9Moderate
94.0Moderate
104.0Moderate
114.0Moderate
124.0Bright
134.0Bright
144.0Bright
154.0Bright
164.1Bright
174.1Bright
184.1Bright
194.1Bright
204.1Bright
214.1Bright
224.2Bright
234.2Bright
244.2Bright
254.2Bright
264.2Bright
274.2Bright
284.2Bright
294.2Bright
304.2Bright
Planning a trip in September

Hazard calendar for Arrah

In seasonPeak

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

Arrah 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 Arrah?

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

3.6
Sightseeing
6th-best month of the year
4.8
Beach & pool
10th-best month of the year

September is a weaker month for outdoor sightseeing in Arrah.

What to pack for Arrah in September

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

In September, Arrah sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. About 22 days see rain.

light clothesrain gear

UV index in Arrah 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 Arrah peaks around April 13 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 17 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeExtremeVery highApr 13UV 13Dec 17UV 9
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar13Extreme
Apr13Extreme
May11Extreme
Jun11Extreme
Jul10Very high
Aug11Extreme
Sep13Extreme
Oct12Extreme
Nov10Very high
Dec9Very high

Air quality in Arrah 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 Arrah is worst in January — around 68 µg/m³ PM2.5 (unhealthy), about 4.0× the cleanest month (August, 17 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModerateJan 2068 µg/m³Aug 2417 µg/m³
PM2.5 (µg/m³)Level
Jan68Unhealthy
Feb66Unhealthy
Mar38Poor
Apr36Poor
May23Moderate
Jun20Moderate
Jul19Moderate
Aug17Moderate
Sep17Moderate
Oct22Moderate
Nov30Moderate
Dec62Unhealthy
Location & terrain

Where is Arrah?

Arrah sits at 6.7°N, 4.0°W, 143 m above sea level, in Ivory Coast. The nearest listed city is Andé, 18 km away.

DaoukroM’BattoAbengourouAdzopé

Topography around Arrah

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

Within 3 km, the terrain around Arrah has only modest variations in elevation — a maximum elevation change of 53 m around an average of 140 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 172 m; within 80 km, significant variations in elevation — a maximum elevation change of 580 m.

The land around Arrah is covered by trees (43%), grassland (25%) and shrubs (20%) within 3 km, trees (81%) within 16 km, and trees (90%) within 80 km.

3 km
53 m
16 km
172 m
80 km
580 m
treesshrubsgrasslandartificial surfaces
September weather nearby: Andé 18 km · Bongouanou 26 km · Akoupé 33 km · Affery 39 km · Daoukro 43 km · M’Batto 48 km · Abengourou 53 km · Adzopé 64 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 Arrah (6.6734°, -3.9694°, elevation 143 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).