Tiassalé weather in September

In September, Tiassalé sees average daytime highs of 30°C and overnight lows near 23°C, with 148 mm of rain across 24.2 wet days and about 12 hours of daylight. It is the 9th-warmest and 2nd-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 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 Tiassalé's 8th-clearest and 5th-windiest month. For the whole year in context, see Tiassalé's year-round climate.

Daytime high
30°
9th warmest
Overnight low
23°
6th coldest
Rainfall
148 mm
24.2 wet days
Daylight
12 hours
6:13 AM – 6:15 PM
Cloud cover
79%
8th clearest
Wind
7 km/h
5th windiest
Solar energy
4.17 kWh/m²
Travel score
3.2
out of 10

Tiassalé 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 Tiassalé 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
23023
33023
43023
53023
63023
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 Tiassalé

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.

Tiassalé weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 2nd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 22°307.411.73.8
Feb34° / 24°6011.911.82.8
Mar34° / 24°10319.2122.4
Apr33° / 24°10521.312.12.4
May32° / 24°14525.312.32.6
Jun30° / 23°16325.712.33.1
Jul29° / 22°10420.412.33.9
Aug29° / 22°9518.612.24.1
Sep30° / 23°14824.2123.2
Oct31° / 23°14526.311.92.9
Nov31° / 23°9820.711.73.2
Dec31° / 23°4310.811.74.3

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 11% of September, with mostly cloudy or overcast conditions the remaining 88%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1595
2694
3694
4793
5793
6892
7892
8991
9991
10991
11991
121090
131090
141189
151189
161189
171288
181288
191288
201387
211486
221585
231585
241684
251783
261783
271882
281882
291981
301981

Chance of precipitation in September

Any precipitation

Tiassalé gets around 148 mm of rain over 24.2 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 80% and peaks near 85% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
174
275
376
477
577
678
778
879
979
1079
1179
1280
1380
1480
1580
1680
1780
1881
1981
2081
2182
2282
2382
2483
2583
2683
2784
2884
2984
3085

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
Muggy (%)Oppressive (%)Miserable (%)
15950
25950
35950
44960
54960
64960
74960
83970
93970
103970
113970
123970
132980
142980
152980
162980
172980
181990
191990
201990
211990
221990
231990
241990
251990
261990
271990
281990
290991
300991

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
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 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 6:16 AM to 6:10 AM, and sunset from 6:22 PM to 6:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:166:22
212.16:156:22
312.16:156:21
412.16:156:21
512.16:156:20
612.16:156:20
712.16:146:19
812.16:146:19
912.16:146:18
1012.16:146:18
1112.16:146:17
1212.16:136:17
1312.06:136:16
1412.06:136:16
1512.06:136:15
1612.06:136:15
1712.06:126:14
1812.06:126:13
1912.06:126:13
2012.06:126:12
2112.06:126:12
2212.06:116:11
2312.06:116:11
2412.06:116:10
2512.06:116:10
2612.06:116:09
2712.06:106:09
2812.06:106:08
2912.06:106:08
3012.06:106:07

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.17 kWh/m².

For context, solar energy here swings from a low near 3.79 kWh/m² to a high of 5.33 kWh/m² in April across the year — September's 4.17 kWh/m² sits near the bottom.

012345151015202530
Solar energy (kWh/m²)Level
14.0Moderate
24.0Moderate
34.0Bright
44.0Bright
54.0Bright
64.0Bright
74.0Bright
84.1Bright
94.1Bright
104.1Bright
114.1Bright
124.1Bright
134.1Bright
144.2Bright
154.2Bright
164.2Bright
174.2Bright
184.2Bright
194.2Bright
204.2Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.4Bright
304.4Bright
Planning a trip in September

Hazard calendar for Tiassalé

In seasonPeak

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

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

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

Is September a good time to visit Tiassalé?

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
4.4
Beach & pool
8th-best month of the year

September is a weaker month for outdoor sightseeing in Tiassalé.

What to pack for Tiassalé in September

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

In September, Tiassalé sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. About 24 days see rain.

light clothesrain gear

UV index in Tiassalé 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 Tiassalé peaks around April 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 16 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeVery highApr 10UV 13Jul 16UV 8
UV index (midday)Level
Jan10Very high
Feb12Extreme
Mar13Extreme
Apr13Extreme
May12Extreme
Jun11Extreme
Jul8Very high
Aug11Extreme
Sep13Extreme
Oct12Extreme
Nov10Very high
Dec8Very high

Air quality in Tiassalé 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 Tiassalé is worst in January — around 69 µg/m³ PM2.5 (unhealthy), about 3.8× the cleanest month (August, 18 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorJan 1668 µg/m³Aug 2418 µg/m³
PM2.5 (µg/m³)Level
Jan69Unhealthy
Feb59Unhealthy
Mar40Poor
Apr37Poor
May26Moderate
Jun23Moderate
Jul21Moderate
Aug18Moderate
Sep18Moderate
Oct24Moderate
Nov34Moderate
Dec60Unhealthy
Location & terrain

Where is Tiassalé?

Tiassalé sits at 5.9°N, 4.8°W, 29 m above sea level, in Ivory Coast. The nearest listed city is Ndouci, 8.0 km away.

AhouanouDivoRubino

Topography around Tiassalé

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

Within 3 km, the terrain around Tiassalé has only modest variations in elevation — a maximum elevation change of 60 m around an average of 30 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 129 m; within 80 km, significant variations in elevation — a maximum elevation change of 554 m.

The land around Tiassalé is covered by trees (50%) and grassland (32%) within 3 km, trees (80%) within 16 km, and trees (83%) within 80 km.

3 km
60 m
16 km
129 m
80 km
554 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Ndouci 8.0 km · Nzianouan 13 km · Gbolouville 21 km · Erémankono 22 km · Ogoudou 37 km · Ahouanou 44 km · Divo 59 km · Rubino 60 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 Tiassalé (5.8984°, -4.8229°, elevation 29 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).