Gnago weather in September

In September, Gnago sees average daytime highs of 28°C and overnight lows near 23°C, with 134 mm of rain across 25.4 wet days and about 12 hours of daylight. It is the 9th-warmest and 4th-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 Gnago's 8th-clearest and 3rd-windiest month. For the whole year in context, see Gnago's year-round climate.

Daytime high
28°
9th warmest
Overnight low
23°
4th coldest
Rainfall
134 mm
25.4 wet days
Daylight
12 hours
6:17 AM – 6:18 PM
Cloud cover
80%
8th clearest
Wind
8 km/h
3rd windiest
Solar energy
4.18 kWh/m²
Travel score
3.7
out of 10

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 Gnago 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°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12822
22822
32822
42822
52822
62822
72822
82822
92822
102822
112822
122822
132822
142823
152823
162823
172823
182823
192823
202823
212823
222823
232823
242923
252923
262923
272923
282923
292923
302923

How September really feels in Gnago

Once humidity and wind are folded in, September averages 0 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
0
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

September sits comfortably in between — no days that feel dangerously hot or drop to a hard freeze once humidity and wind are folded in.

Gnago weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 4th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 22°6014.511.74.3
Feb32° / 23°7816.311.83.4
Mar32° / 24°11422.5122.9
Apr31° / 24°1232312.12.9
May30° / 23°21227.712.22.9
Jun28° / 23°23126.912.33.4
Jul27° / 22°10921.512.34.5
Aug27° / 22°8219.512.24.7
Sep28° / 23°13425.4123.7
Oct29° / 23°1602811.93.1
Nov30° / 23°13325.511.83.2
Dec30° / 23°8719.611.74.0

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 10% of September, with mostly cloudy or overcast conditions the remaining 89%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1793
2793
3892
4892
5892
6991
7991
8991
9991
10991
11991
12991
13991
141189
151189
161189
171189
181189
191189
201288
211288
221288
231288
241387
251387
261387
271486
281387
291486
301486

Chance of precipitation in September

Any precipitation

Gnago gets around 134 mm of rain over 25.4 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 84% and peaks near 92% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%100%151015202530
Rain chance (%)
177
278
379
479
579
680
780
880
981
1081
1181
1282
1382
1483
1583
1684
1784
1885
1986
2087
2187
2288
2388
2489
2589
2690
2790
2891
2991
3092

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 (%)
11990
21990
31990
41990
51990
61990
71990
81990
91990
101981
111981
121981
131981
141981
151981
161981
171981
181981
191981
201981
211981
221981
230991
240991
250982
260982
270982
280982
290982
300973

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 7 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
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 6:20 AM to 6:14 AM, and sunset from 6:26 PM to 6:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:206:26
212.16:206:25
312.16:196:25
412.16:196:24
512.16:196:24
612.16:196:23
712.16:196:23
812.16:186:22
912.16:186:22
1012.16:186:21
1112.16:186:21
1212.06:186:20
1312.06:176:20
1412.06:176:19
1512.06:176:19
1612.06:176:18
1712.06:166:18
1812.06:166:17
1912.06:166:17
2012.06:166:16
2112.06:166:16
2212.06:156:15
2312.06:156:15
2412.06:156:14
2512.06:156:14
2612.06:146:13
2712.06:146:13
2812.06:146:12
2912.06:146:12
3012.06:146:11

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.18 kWh/m².

For context, solar energy here swings from a low near 3.8 kWh/m² to a high of 5.25 kWh/m² in April across the year — September's 4.18 kWh/m² falls in the middle.

012345151015202530
Solar energy (kWh/m²)Level
14.0Moderate
24.0Bright
34.0Bright
44.0Bright
54.0Bright
64.0Bright
74.1Bright
84.1Bright
94.1Bright
104.1Bright
114.1Bright
124.1Bright
134.2Bright
144.2Bright
154.2Bright
164.2Bright
174.2Bright
184.2Bright
194.2Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.3Bright
304.3Bright
Planning a trip in September

Hazard calendar for Gnago

In seasonPeak

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

Gnago sees seasonal dust haze (February), heaviest in February.

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

Is September a good time to visit Gnago?

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

3.7
Sightseeing
5th-best month of the year
4.2
Beach & pool
9th-best month of the year

September is a weaker month for outdoor sightseeing in Gnago.

What to pack for Gnago in September

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

In September, Gnago sees daytime highs around 28°C and nights near 23°C. Pack light clothes and rain gear. About 25 days see rain.

light clothesrain gear

Sea temperature near Gnago in September

The nearest coast averages about 24°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 42 km away) is warmest in May at about 28°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
Feb27Warm
Mar28Warm
Apr28Tropical
May28Tropical
Jun27Warm
Jul25Warm
Aug24Refreshing
Sep24Warm
Oct26Warm
Nov28Tropical
Dec28Tropical

UV index in Gnago 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 Gnago peaks around April 9 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 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 9UV 14Jul 16UV 9
UV index (midday)Level
Jan10Extreme
Feb12Extreme
Mar14Extreme
Apr14Extreme
May12Extreme
Jun11Extreme
Jul8Very high
Aug11Extreme
Sep13Extreme
Oct12Extreme
Nov10Very high
Dec9Very high

Air quality in Gnago 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 Gnago is worst in January — around 47 µg/m³ PM2.5 (poor), about 5.3× the cleanest month (September, 9 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateGoodModerateJan 1946 µg/m³Sep 169 µg/m³
PM2.5 (µg/m³)Level
Jan47Poor
Feb43Poor
Mar26Moderate
Apr25Moderate
May15Moderate
Jun15Moderate
Jul14Moderate
Aug11Good
Sep9Good
Oct11Good
Nov17Moderate
Dec36Poor
Location & terrain

Where is Gnago?

Gnago sits at 5.2°N, 5.8°W, 74 m above sea level, in Ivory Coast. The nearest listed city is Okromodou, 18 km away.

Dagbao ISassandraGaoulouSahouaGuéyo

Topography around Gnago

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

Within 3 km, the terrain around Gnago has only modest variations in elevation — a maximum elevation change of 63 m around an average of 61 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 251 m; within 80 km, significant variations in elevation — a maximum elevation change of 435 m.

The land around Gnago is covered by trees (87%) within 3 km, trees (91%) within 16 km, and trees (72%) and water (25%) within 80 km.

3 km
63 m
16 km
251 m
80 km
435 m
treesshrubsgrasslandartificial surfaceswater
September weather nearby: Okromodou 18 km · Niapidou 31 km · Gbabam 34 km · Dagbao I 43 km · Sassandra 45 km · Gaoulou 46 km · Sahoua 55 km · Guéyo 58 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 Gnago (5.2403°, -5.7952°, elevation 74 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).