Bolobo weather in September

In September, Bolobo sees average daytime highs of 30°C and overnight lows near 23°C, with 99 mm of rain across 20 wet days and about 12 hours of daylight. It is the 6th-warmest and 9th-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 12% 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 Bolobo's 5th-clearest and 3rd-windiest month. For the whole year in context, see Bolobo's year-round climate.

Daytime high
30°
6th warmest
Overnight low
23°
4th coldest
Rainfall
99 mm
20 wet days
Daylight
12 hours
5:50 AM – 5:49 PM
Cloud cover
70%
5th clearest
Wind
5 km/h
3rd windiest
Solar energy
5.34 kWh/m²
Travel score
3.8
out of 10

Bolobo is place in Mai-Ndombe Province, Democratic Republic of the Congo.

Density
12/km²
people per km²

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 Bolobo 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 on par with August and on par with October.

20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13023
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 Bolobo

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.

Bolobo weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan30° / 23°11018.312.13.8
Feb31° / 24°11217.112.13.4
Mar31° / 24°12220.7123.2
Apr31° / 24°15122.8123.1
May30° / 24°10419.411.93.8
Jun30° / 23°306.811.95.5
Jul30° / 23°164.711.95.8
Aug30° / 23°4811.811.94.8
Sep30° / 23°9920123.8
Oct29° / 23°17125123.4
Nov29° / 23°16724.912.13.3
Dec30° / 23°15723.512.13.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 12% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 22% of September, with mostly cloudy or overcast conditions the remaining 66%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
13961
23862
33862
43862
53862
63862
73862
83862
93862
103862
113862
123862
133862
143763
153664
163565
173466
183367
193268
203169
213070
223070
232872
242872
252773
262773
272773
282773
292773
302773

Chance of precipitation in September

Any precipitation

Bolobo gets around 99 mm of rain over 20 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 66% and peaks near 76% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
152
253
354
455
557
658
760
861
962
1063
1164
1265
1366
1467
1568
1668
1769
1869
1970
2070
2171
2271
2372
2473
2573
2674
2774
2875
2975
3076

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 93% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

0%25%50%75%100%151015202530
Muggy (%)Oppressive (%)
12080
21981
31783
41684
51585
61486
71288
81189
91090
10991
11892
12793
13694
14694
15595
16496
17496
18397
19397
20298
21298
22298
23199
24199
25199
26199
27199
28199
290100
300100

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
75calm
85calm
95calm
105calm
115calm
125calm
135calm
145calm
155calm
165calm
175calm
185calm
195calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

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 5:56 AM to 5:44 AM, and sunset from 5:54 PM to 5:45 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.05:565:54
212.05:565:53
312.05:555:53
412.05:555:53
512.05:545:52
612.05:545:52
712.05:545:52
812.05:535:52
912.05:535:51
1012.05:525:51
1112.05:525:51
1212.05:515:50
1312.05:515:50
1412.05:515:50
1512.05:505:49
1612.05:505:49
1712.05:495:49
1812.05:495:48
1912.05:485:48
2012.05:485:48
2112.05:485:47
2212.05:475:47
2312.05:475:47
2412.05:465:47
2512.05:465:46
2612.05:455:46
2712.05:455:46
2812.05:455:45
2912.05:445:45
3012.05:445:45

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.34 kWh/m².

For context, solar energy here swings from a low near 5.07 kWh/m² to a high of 5.64 kWh/m² in February across the year — September's 5.34 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.4Bright
25.4Bright
35.4Bright
45.4Bright
55.4Bright
65.4Bright
75.4Bright
85.4Bright
95.4Bright
105.4Bright
115.4Bright
125.4Bright
135.4Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
Planning a trip in September

Is September a good time to visit Bolobo?

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

3.8
Sightseeing
4th-best month of the year
5.2
Beach & pool
6th-best month of the year

September is a weaker month for outdoor sightseeing in Bolobo.

What to pack for Bolobo in September

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

In September, Bolobo sees daytime highs around 30°C and nights near 23°C. Pack light clothes and rain gear. Worth having: sun protection. About 20 days see rain.

light clothesrain gearsun protection

UV index in Bolobo 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 Bolobo peaks around March 24 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 21 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeVery highMar 24UV 13Jun 21UV 7
UV index (midday)Level
Jan13Extreme
Feb13Extreme
Mar13Extreme
Apr13Extreme
May10Very high
Jun7Very high
Jul8Very high
Aug8Very high
Sep11Extreme
Oct13Extreme
Nov10Extreme
Dec9Very high

Air quality in Bolobo 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 Bolobo is worst in August — around 65 µg/m³ PM2.5 (unhealthy), about 5.3× the cleanest month (October, 12 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyModerateAug 1163 µg/m³Oct 2312 µg/m³
PM2.5 (µg/m³)Level
Jan24Moderate
Feb29Moderate
Mar24Moderate
Apr20Moderate
May27Moderate
Jun44Poor
Jul58Unhealthy
Aug65Unhealthy
Sep26Moderate
Oct12Moderate
Nov13Moderate
Dec20Moderate
Location & terrain

Where is Bolobo?

Bolobo sits at 2.2°S, 16.2°E, 321 m above sea level, in Democratic Republic of the Congo. The nearest listed city is Gamboma, 52 km away.

MossakaMushieDjambalaNiokiBandundu ProvinceOwando

Topography around Bolobo

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

Within 3 km, the terrain around Bolobo has only modest variations in elevation — a maximum elevation change of 97 m around an average of 308 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 189 m; within 80 km, significant variations in elevation — a maximum elevation change of 396 m.

The land around Bolobo is covered by water (41%), trees (24%) and grassland (22%) within 3 km, grassland (37%), water (27%) and trees (26%) within 16 km, and grassland (47%) and trees (43%) within 80 km.

3 km
97 m
16 km
189 m
80 km
396 m
treesshrubsgrasslandartificial surfaceswaterwetland
September weather nearby: Gamboma 52 km · Oyo 114 km · Mossaka 122 km · Mushie 122 km · Djambala 170 km · Nioki 174 km · Bandundu Province 181 km · Owando 190 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 Bolobo (-2.158°, 16.2325°, elevation 321 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).