Bondo weather in September

In September, Bondo sees average daytime highs of 29°C and overnight lows near 21°C, with 151 mm of rain across 24.7 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 29°C through the month. The sky is clear or mostly clear about 5% 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 Bondo's 9th-clearest and 8th-windiest month. For the whole year in context, see Bondo's year-round climate.

Daytime high
29°
9th warmest
Overnight low
21°
7th coldest
Rainfall
151 mm
24.7 wet days
Daylight
12 hours
6:19 AM – 6:20 PM
Cloud cover
77%
9th clearest
Wind
4 km/h
8th windiest
Solar energy
5.05 kWh/m²
Travel score
3.6
out of 10

Bondo is place in Bas-Uele, Democratic Republic of the 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 29°C through the month.

A typical September day in Bondo reaches about 29°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 31°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)
12921
22921
32921
42921
52921
62921
72921
82921
92921
102921
112921
122921
132921
142921
152921
162921
172921
182921
192921
202921
212921
222921
232921
242921
252921
262921
272921
282921
292921
302921

How September really feels in Bondo

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.

Bondo 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
Jan32° / 21°244.711.84.5
Feb33° / 22°437.511.93.7
Mar32° / 22°11416.5123.5
Apr30° / 23°15420.712.13.5
May30° / 22°13221.512.23.8
Jun29° / 22°10720.412.24.0
Jul29° / 21°1112212.24.0
Aug29° / 21°14224.112.13.7
Sep29° / 21°15124.7123.6
Oct28° / 21°17626.411.93.5
Nov29° / 21°12119.611.84.1
Dec30° / 21°336.811.85.1

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 5% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 15% of September, with mostly cloudy or overcast conditions the remaining 80%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12080
22080
32080
42080
52080
62080
72080
82080
92080
102080
112080
121981
131981
141981
151981
161981
171981
181981
191981
201981
211981
221981
231981
241981
251981
261981
271981
281981
291981
301981

Chance of precipitation in September

Any precipitation

Bondo gets around 151 mm of rain over 24.7 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 82% and peaks near 84% on the wettest days.

0%20%40%60%80%151015202530
Rain chance (%)
183
283
383
483
584
684
784
884
984
1084
1184
1283
1383
1483
1582
1682
1782
1881
1981
2080
2180
2280
2380
2480
2580
2680
2780
2880
2981
3081

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 97% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)
1397
2397
3397
4397
5397
6397
7397
8397
9397
10397
11397
12397
13397
14397
15397
16397
17298
18298
19298
20298
21298
22298
23298
24298
25298
26298
27298
28298
29298
30397

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 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 6:23 AM to 6:15 AM, and sunset from 6:27 PM to 6:14 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:236:27
212.16:236:27
312.16:226:26
412.16:226:26
512.16:226:25
612.16:226:25
712.16:216:24
812.06:216:24
912.06:216:24
1012.06:216:23
1112.06:206:23
1212.06:206:22
1312.06:206:22
1412.06:196:21
1512.06:196:21
1612.06:196:20
1712.06:196:20
1812.06:186:19
1912.06:186:19
2012.06:186:18
2112.06:186:18
2212.06:176:17
2312.06:176:17
2412.06:176:16
2512.06:176:16
2612.06:166:15
2712.06:166:15
2812.06:166:15
2912.06:166:14
3012.06:156:14

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.05 kWh/m².

For context, solar energy here swings from a low near 4.83 kWh/m² to a high of 5.89 kWh/m² in February across the year — September's 5.05 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.0Bright
65.0Bright
75.0Bright
85.0Bright
95.0Bright
105.0Bright
115.0Bright
125.0Bright
135.1Bright
145.1Bright
155.1Bright
165.1Bright
175.1Bright
185.1Bright
195.1Bright
205.1Bright
215.1Bright
225.1Bright
235.1Bright
245.1Bright
255.1Bright
265.0Bright
275.0Bright
285.0Bright
295.0Bright
305.0Bright
Planning a trip in September

Is September a good time to visit Bondo?

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

3.6
Sightseeing
9th-best month of the year
4.4
Beach & pool
11th-best month of the year

September is a weaker month for outdoor sightseeing in Bondo.

What to pack for Bondo in September

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

In September, Bondo sees daytime highs around 29°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

UV index in Bondo in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Bondo peaks around October 14 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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 highOct 14UV 13Dec 15UV 9
UV index (midday)Level
Jan11Extreme
Feb12Extreme
Mar12Extreme
Apr13Extreme
May13Extreme
Jun10Extreme
Jul9Very high
Aug12Extreme
Sep12Extreme
Oct13Extreme
Nov10Very high
Dec9Very high

Air quality in Bondo 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 Bondo is worst in February — around 96 µg/m³ PM2.5 (unhealthy), about 12.6× the cleanest month (September, 8 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecModerateUnhealthyModerateModerateGoodModerateFeb 1891 µg/m³Sep 238 µg/m³
PM2.5 (µg/m³)Level
Jan31Moderate
Feb96Unhealthy
Mar66Unhealthy
Apr17Moderate
May11Good
Jun14Moderate
Jul14Moderate
Aug11Good
Sep8Good
Oct8Good
Nov14Moderate
Dec25Moderate
Location & terrain

Where is Bondo?

Bondo sits at 3.8°N, 23.7°E, 494 m above sea level, in Democratic Republic of the Congo. The nearest listed city is Aketi, 120 km away.

AketiBangassouButaZemioBumbaBasokoGbadoliteLisala

Topography around Bondo

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

Within 3 km, the terrain around Bondo has only modest variations in elevation — a maximum elevation change of 73 m around an average of 488 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 118 m; within 80 km, significant variations in elevation — a maximum elevation change of 263 m.

The land around Bondo is covered by trees (61%) within 3 km, trees (91%) within 16 km, and trees (98%) within 80 km.

3 km
73 m
16 km
118 m
80 km
263 m
treesshrubsgrasslandartificial surfaceswater
September weather nearby: Aketi 120 km · Bangassou 141 km · Buta 163 km · Zemio 210 km · Bumba 226 km · Basoko 286 km · Gbadolite 302 km · Lisala 304 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 Bondo (3.8146°, 23.6867°, elevation 494 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).