Tchibanga weather in September

In September, Tchibanga sees average daytime highs of 28°C and overnight lows near 21°C, with 50 mm of rain across 13.7 wet days and about 12 hours of daylight. It is the 9th-warmest and 9th-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 muggy.

Daylight stretches from about 11 h 54 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Tchibanga's 12th-clearest and 1st-windiest month. For the whole year in context, see Tchibanga's year-round climate.

Daytime high
28°
9th warmest
Overnight low
21°
4th coldest
Rainfall
50 mm
13.7 wet days
Daylight
12 hours
6:11 AM – 6:10 PM
Cloud cover
91%
12th clearest
Wind
7 km/h
1st windiest
Solar energy
3.41 kWh/m²
Travel score
5.2
out of 10

Tchibanga is city in the Nyanga Province of southern Gabon, situated on the Nyanga River.

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 Tchibanga reaches about 28°C in the afternoon and slips back to 21°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 29°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12720
22720
32720
42720
52720
62720
72721
82721
92721
102721
112721
122821
132821
142821
152821
162821
172821
182821
192821
202821
212821
222821
232821
242821
252821
262821
272822
282822
292822
302822

How September really feels in Tchibanga

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.

Tchibanga weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 22°27328.412.22.9
Feb30° / 22°23325.512.12.8
Mar30° / 23°22727.5122.7
Apr30° / 23°21224.611.92.9
May29° / 22°14622.611.93.7
Jun27° / 20°184.811.86.6
Jul26° / 19°61.411.87.2
Aug27° / 19°122.811.96.8
Sep28° / 21°5013.7125.2
Oct29° / 22°19828.112.13.2
Nov29° / 22°3412912.12.9
Dec29° / 22°32029.612.22.9

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 0% of September, with mostly cloudy or overcast conditions the remaining 100%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
10100
20100
30100
40100
50100
60100
70100
80100
90100
100100
110100
120100
130100
140100
150100
160100
170100
180100
190100
200100
210100
22199
23199
24199
25199
26199
27199
28199
29199
30199

Chance of precipitation in September

Any precipitation

Tchibanga gets around 50 mm of rain over 13.7 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 46% and peaks near 73% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
119
221
322
424
525
627
729
831
933
1035
1137
1239
1341
1443
1546
1648
1750
1852
1954
2056
2157
2259
2361
2463
2565
2667
2768
2870
2971
3073

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels muggy — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the muggy band about 69% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)
12953
22944
32935
41936
51927
61918
70919
808911
908713
1008515
1108218
1208020
1307723
1407426
1507228
1606931
1706634
1806337
1906040
2005842
2105545
2205347
2305149
2404951
2504852
2604654
2704456
2804258
2904060
3003961

Wind in September

Winds average 7 km/h in September, the windiest month of the year.

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

0246810151015202530
Wind speed (km/h)Feels
17calm
27calm
37calm
47calm
57calm
67calm
77calm
87calm
97calm
107calm
117calm
127calm
137calm
147calm
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 11 h 54 min at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 6 minutes over September. Sunrise moves from 6:17 AM to 6:05 AM, and sunset from 6:14 PM to 6:06 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:176:14
211.96:176:14
311.96:176:14
412.06:166:13
512.06:166:13
612.06:156:13
712.06:156:12
812.06:146:12
912.06:146:12
1012.06:146:12
1112.06:136:11
1212.06:136:11
1312.06:126:11
1412.06:126:11
1512.06:116:10
1612.06:116:10
1712.06:106:10
1812.06:106:09
1912.06:106:09
2012.06:096:09
2112.06:096:08
2212.06:086:08
2312.06:086:08
2412.06:076:08
2512.06:076:07
2612.06:066:07
2712.06:066:07
2812.06:066:07
2912.06:056:06
3012.06:056:06

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.41 kWh/m².

For context, solar energy here swings from a low near 3.36 kWh/m² to a high of 4.73 kWh/m² in March across the year — September's 3.41 kWh/m² sits near the bottom.

01234151015202530
Solar energy (kWh/m²)Level
13.3Moderate
23.3Moderate
33.3Moderate
43.3Moderate
53.3Moderate
63.3Moderate
73.3Moderate
83.3Moderate
93.3Moderate
103.4Moderate
113.4Moderate
123.4Moderate
133.4Moderate
143.4Moderate
153.4Moderate
163.4Moderate
173.4Moderate
183.4Moderate
193.4Moderate
203.5Moderate
213.5Moderate
223.5Moderate
233.5Moderate
243.5Moderate
253.6Moderate
263.6Moderate
273.6Moderate
283.6Moderate
293.7Moderate
303.7Moderate
Planning a trip in September

Hazard calendar for Tchibanga

In seasonPeak

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

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

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

Is September a good time to visit Tchibanga?

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

5.2
Sightseeing
4th-best month of the year
5.6
Beach & pool
4th-best month of the year

September is a reasonable time to visit Tchibanga for sightseeing.

What to pack for Tchibanga in September

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

In September, Tchibanga sees daytime highs around 28°C and nights near 21°C. Pack light clothes and rain gear. About 14 days see rain.

light clothesrain gear

Sea temperature near Tchibanga 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 63 km away) is warmest in March at about 28°C and coldest in July near 22°C.

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

20°22°24°26°28°30°JanFebMarAprMayJunJulAugSepOctNovDecrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan27Warm
Feb28Tropical
Mar28Tropical
Apr28Warm
May26Warm
Jun23Refreshing
Jul22Refreshing
Aug22Refreshing
Sep24Warm
Oct26Warm
Nov27Warm
Dec27Warm

UV index in Tchibanga in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Tchibanga peaks around March 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 20 at about 7 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highVery highExtremeMar 17UV 14Jun 20UV 7
UV index (midday)Level
Jan13Extreme
Feb12Extreme
Mar15Extreme
Apr12Extreme
May10Very high
Jun7High
Jul8Very high
Aug8Very high
Sep11Extreme
Oct13Extreme
Nov11Extreme
Dec10Very high

Air quality in Tchibanga 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 Tchibanga is worst in July — around 27 µg/m³ PM2.5 (moderate), about 3.0× the cleanest month (October, 9 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodJul 2127 µg/m³Oct 249 µg/m³
PM2.5 (µg/m³)Level
Jan16Moderate
Feb18Moderate
Mar14Moderate
Apr13Moderate
May16Moderate
Jun23Moderate
Jul27Moderate
Aug26Moderate
Sep16Moderate
Oct9Good
Nov9Good
Dec13Moderate
Location & terrain

Where is Tchibanga?

Tchibanga sits at 2.9°S, 11.0°E, 49 m above sea level, in Gabon. The nearest listed city is Mouila, 119 km away.

MouilaMossendjoDolisieKoulamoutouLambarénéLoudima

Topography around Tchibanga

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

Within 3 km, the terrain around Tchibanga has only modest variations in elevation — a maximum elevation change of 67 m around an average of 63 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 566 m; within 80 km, large variations in elevation — a maximum elevation change of 921 m.

The land around Tchibanga is covered by grassland (56%) and trees (33%) within 3 km, trees (58%) and grassland (41%) within 16 km, and trees (74%) within 80 km.

3 km
67 m
16 km
566 m
80 km
921 m
treesshrubsgrasslandartificial surfaceswater
September weather nearby: Mouila 119 km · Mossendjo 191 km · Loandjili 225 km · Pointe-Noire 227 km · Dolisie 234 km · Koulamoutou 259 km · Lambaréné 262 km · Loudima 266 km

Gabon travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / E
220 V · 50 Hz
Prices
≈ 37% of US
price level, 2025
GDP per capita
$8,263
2025
Happiness
5.2 / 10
World Happiness, 2025
Road deaths
23.9
per 100k/yr, 2019
Income group
Upper middle
World Bank
Religion
Protestant 46%Roman Catholic 30%Muslim 11%none 7%

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 Tchibanga (-2.9332°, 10.9818°, elevation 49 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).