Yangambi weather in September

In September, Yangambi sees average daytime highs of 28°C and overnight lows near 22°C, with 172 mm of rain across 25.3 wet days and about 12 hours of daylight. It is the 9th-warmest and 3rd-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 4% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 hours at the start of September to 12 hours by month's end. Set against the rest of the year, September is Yangambi's 9th-clearest and 6th-windiest month. For the whole year in context, see Yangambi's year-round climate.

Daytime high
28°
9th warmest
Overnight low
22°
4th coldest
Rainfall
172 mm
25.3 wet days
Daylight
12 hours
6:16 AM – 6:17 PM
Cloud cover
79%
9th clearest
Wind
4 km/h
6th windiest
Solar energy
4.99 kWh/m²
Travel score
3.6
out of 10

Yangambi is locality in the Democratic Republic of Congo.

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 Yangambi reaches about 28°C in the afternoon and slips back to 22°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 30°C. Set against its neighbours, September runs on par with August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12822
22822
32822
42822
52822
62822
72822
82822
92822
102822
112822
122822
132822
142822
152822
162822
172822
182822
192822
202822
212822
222822
232822
242822
252822
262822
272822
282822
292822
302822

How September really feels in Yangambi

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.

Yangambi weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 3rd-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°6212124.6
Feb31° / 23°8213.3124.0
Mar30° / 23°14719.3123.7
Apr29° / 23°15020.9123.7
May29° / 23°12621.9123.9
Jun29° / 23°10219.2124.2
Jul29° / 22°10319.9124.3
Aug28° / 22°14524.9123.8
Sep28° / 22°17225.3123.6
Oct28° / 22°18126.3123.6
Nov28° / 22°18424.8123.8
Dec29° / 22°10217.6124.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 83%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12080
22080
32080
42080
52080
62080
71981
81981
91981
101882
111882
121783
131882
141783
151783
161783
171684
181684
191585
201585
211585
221486
231486
241486
251486
261486
271486
281486
291585
301585

Chance of precipitation in September

Any precipitation

Yangambi gets around 172 mm of rain over 25.3 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 86% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
182
283
383
484
584
685
785
885
985
1086
1186
1285
1385
1485
1585
1684
1784
1884
1984
2083
2183
2283
2383
2484
2584
2684
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 99% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Oppressive (%)Miserable (%)
11000
21000
31000
41000
51000
61000
71000
8991
9991
10991
11991
12991
13991
14991
15991
16991
17991
18991
19991
20991
21991
22991
23991
24991
25982
26982
27982
28982
29982
30982

Wind in September

Winds average 4 km/h in September.

Across September, daily wind ranges from about 4 km/h on the calmest days to 4 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
14calm
24calm
34calm
44calm
54calm
64calm
74calm
84calm
94calm
104calm
114calm
124calm
134calm
144calm
154calm
164calm
174calm
184calm
194calm
204calm
214calm
224calm
234calm
244calm
254calm
264calm
274calm
284calm
294calm
304calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 12 hours 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 0 minutes over September. Sunrise moves from 6:22 AM to 6:12 AM, and sunset from 6:22 PM to 6:11 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.06:226:22
212.06:216:22
312.06:216:22
412.06:216:21
512.06:206:21
612.06:206:21
712.06:206:20
812.06:196:20
912.06:196:19
1012.06:196:19
1112.06:186:19
1212.06:186:18
1312.06:176:18
1412.06:176:17
1512.06:176:17
1612.06:166:17
1712.06:166:16
1812.06:166:16
1912.06:156:16
2012.06:156:15
2112.06:156:15
2212.06:146:14
2312.06:146:14
2412.06:146:14
2512.06:136:13
2612.06:136:13
2712.06:136:12
2812.06:126:12
2912.06:126:12
3012.06:126:11

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.99 kWh/m².

For context, solar energy here swings from a low near 4.7 kWh/m² to a high of 5.64 kWh/m² in February across the year — September's 4.99 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
14.9Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.0Bright
145.0Bright
155.0Bright
165.0Bright
175.0Bright
185.0Bright
195.0Bright
205.0Bright
215.0Bright
225.0Bright
235.0Bright
245.0Bright
255.0Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
Planning a trip in September

Is September a good time to visit Yangambi?

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

3.6
Sightseeing
11th-best month of the year
4.3
Beach & pool
11th-best month of the year

September is a weaker month for outdoor sightseeing in Yangambi.

What to pack for Yangambi in September

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

In September, Yangambi sees daytime highs around 28°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

UV index in Yangambi 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 Yangambi peaks around March 23 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near July 13 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 highMar 23UV 13Jul 13UV 8
UV index (midday)Level
Jan12Extreme
Feb11Extreme
Mar14Extreme
Apr13Extreme
May10Extreme
Jun9Very high
Jul8Very high
Aug11Extreme
Sep11Extreme
Oct13Extreme
Nov9Very high
Dec9Very high

Air quality in Yangambi 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 Yangambi is worst in February — around 49 µg/m³ PM2.5 (poor), about 4.4× the cleanest month (October, 11 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecPoorModerateGoodModerateFeb 1748 µg/m³Oct 1911 µg/m³
PM2.5 (µg/m³)Level
Jan32Moderate
Feb49Poor
Mar40Poor
Apr25Moderate
May16Moderate
Jun21Moderate
Jul27Moderate
Aug20Moderate
Sep14Moderate
Oct11Good
Nov13Moderate
Dec24Moderate
Location & terrain

Where is Yangambi?

Yangambi sits at 0.8°N, 24.4°E, 459 m above sea level, in Democratic Republic of the Congo. The nearest listed city is Kisangani, 88 km away.

ButaAketiBumbaBabambaBondoLisala

Topography around Yangambi

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

Within 3 km, the terrain around Yangambi has only modest variations in elevation — a maximum elevation change of 112 m around an average of 410 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 148 m; within 80 km, only modest variations in elevation — a maximum elevation change of 219 m.

The land around Yangambi is covered by trees (53%), grassland (24%) and water (21%) within 3 km, trees (78%) within 16 km, and trees (95%) within 80 km.

3 km
112 m
16 km
148 m
80 km
219 m
treesshrubsgrasslandartificial surfaceswater
September weather nearby: Kisangani 88 km · Basoko 106 km · Buta 227 km · Aketi 231 km · Bumba 270 km · Babamba 345 km · Bondo 349 km · Lisala 360 km

Democratic Republic of the Congo travel facts

Travel advisory
Level 4
Do Not Travel
Power plugs
Type C / E
220 V · 50 Hz
Prices
≈ 42% of US
price level, 2025
GDP per capita
$807
2025
Happiness
3.8 / 10
World Happiness, 2025
Safe drinking water
12%
of population, 2024
Road deaths
34.9
per 100k/yr, 2019
Income group
Low
World Bank
English
Very low
EF EPI 400

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 Yangambi (0.7675°, 24.4397°, elevation 459 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).