Mulongo weather in September

In September, Mulongo sees average daytime highs of 34°C and overnight lows near 22°C, with 28 mm of rain across 6.1 wet days and about 12 hours of daylight. It is the 2nd-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 34°C in the first days to 33°C by the end. The sky is clear or mostly clear about 37% of the time in September, and the air most often feels muggy.

Daylight stretches from about 11 h 48 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Mulongo's 5th-clearest and 5th-windiest month. For the whole year in context, see Mulongo's year-round climate.

Daytime high
34°
2nd warmest
Overnight low
22°
12th coldest
Rainfall
28 mm
6.1 wet days
Daylight
12 hours
6:08 AM – 6:05 PM
Cloud cover
53%
5th clearest
Wind
6 km/h
5th windiest
Solar energy
5.92 kWh/m²
Travel score
3.4
out of 10

Mulongo is town in Democratic Republic of the Congo.

Density
1,295/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

Highs ease over the month, from about 34°C in the first days to 33°C by the end.

A typical September day in Mulongo reaches about 34°C in the afternoon and slips back to 22°C overnight — a 12°C spread between the day's warmth and the night's chill. On most days the high lands between 31°C and 36°C. Set against its neighbours, September runs on par with August and about 3°C warmer than October.

15°20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13521
23421
33421
43422
53422
63422
73422
83422
93422
103422
113422
123422
133422
143422
153422
163422
173422
183422
193422
203422
213322
223322
233322
243322
253322
263322
273322
283322
293322
303322

How September really feels in Mulongo

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.

Mulongo weather by month

How September compares with the rest of the year at a glance. September is the 2nd-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 21°2282412.43.9
Feb29° / 22°17018.812.33.9
Mar29° / 22°17921.112.13.8
Apr30° / 22°1091511.84.2
May33° / 21°132.911.64.4
Jun33° / 20°00.111.64.3
Jul33° / 19°0011.64.3
Aug34° / 21°40.711.73.6
Sep34° / 22°286.1123.4
Oct31° / 22°11918.512.23.6
Nov29° / 21°20023.412.43.6
Dec28° / 21°23126.412.43.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 37% 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 42%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17426
27327
37228
47030
57030
66832
76733
86634
96535
106436
116337
126238
136139
146040
155941
165941
175842
185644
195545
205446
215347
225248
235149
245050
255050
264753
274654
284555
294456
304357

Chance of precipitation in September

Any precipitation

Mulongo gets around 28 mm of rain over 6.1 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 21% and peaks near 40% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
15
26
36
47
58
69
710
811
912
1013
1115
1216
1318
1419
1520
1622
1723
1824
1925
2026
2128
2229
2330
2432
2533
2635
2736
2837
2939
3040

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 40% of days. Sticky, muggy-or-worse air turns up on roughly 45% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1451724140
2431725150
3411726170
4391627180
5361627200
6341628210
7321529231
8301529251
9281529271
10261429301
11241429321
12221429342
13201328362
14181328392
15161328412
16151227433
17131227453
18111126483
19101126504
2091025524
2181024535
227924555
236823576
245822587
254721608
2636216010
2736206011
2835196013
2925186015
3024176017

Wind in September

Winds average 6 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
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
205calm
215calm
225calm
235calm
245calm
255calm
265calm
275calm
285calm
295calm
305calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 48 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over September. Sunrise moves from 6:16 AM to 5:59 AM, and sunset from 6:07 PM to 6:03 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:166:07
211.96:166:07
311.96:156:07
411.96:156:07
511.96:146:07
611.96:136:07
711.96:136:06
811.96:126:06
911.96:126:06
1011.96:116:06
1111.96:116:06
1211.96:106:06
1311.96:096:06
1411.96:096:05
1512.06:086:05
1612.06:086:05
1712.06:076:05
1812.06:066:05
1912.06:066:05
2012.06:056:04
2112.06:056:04
2212.06:046:04
2312.06:036:04
2412.06:036:04
2512.06:026:04
2612.06:026:04
2712.06:016:03
2812.06:016:03
2912.16:006:03
3012.15:596:03

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.92 kWh/m².

For context, solar energy here swings from a low near 5.01 kWh/m² to a high of 5.98 kWh/m² in August across the year — September's 5.92 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.0Intense
36.0Intense
46.0Intense
56.0Intense
66.0Intense
76.0Intense
86.0Bright
96.0Bright
106.0Bright
116.0Bright
126.0Bright
135.9Bright
145.9Bright
155.9Bright
165.9Bright
175.9Bright
185.9Bright
195.9Bright
205.9Bright
215.9Bright
225.9Bright
235.9Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
Planning a trip in September

Hazard calendar for Mulongo

In seasonPeak

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

Mulongo's monsoon runs October–April, when most of the year's rain falls.

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

Is September a good time to visit Mulongo?

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

3.4
Sightseeing
12th-best month of the year
6.5
Beach & pool
5th-best month of the year

September is a weaker month for outdoor sightseeing in Mulongo. The water and warmth also suit a beach or pool day.

What to pack for Mulongo in September

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

In September, Mulongo sees daytime highs around 34°C and nights near 22°C. Pack light clothes. Worth having: sun protection. About 6 days see rain.

light clothessun protection

UV index in Mulongo in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mulongo peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 16 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 14UV 15Aug 16UV 7
UV index (midday)Level
Jan13Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May10Very high
Jun9Very high
Jul9Very high
Aug7High
Sep9Very high
Oct12Extreme
Nov11Extreme
Dec12Extreme

Air quality in Mulongo 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 Mulongo is worst in July — around 176 µg/m³ PM2.5 (very unhealthy), about 17.5× the cleanest month (April, 10 µg/m³).

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

0306090120150180JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateUnhealthyVery unhealthyUnhealthyModerateJul 20171 µg/m³Apr 1010 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb15Moderate
Mar11Good
Apr10Good
May25Moderate
Jun100Unhealthy
Jul176Very unhealthy
Aug148Unhealthy
Sep49Poor
Oct26Moderate
Nov16Moderate
Dec12Good
Location & terrain

Where is Mulongo?

Mulongo sits at 7.8°S, 27.0°E, 597 m above sea level, in Democratic Republic of the Congo. The nearest listed city is Malemba-Nkulu, 32 km away.

BukamaKabaloPwetoNyunzuKamina

Topography around Mulongo

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

Within 3 km, the terrain around Mulongo has only modest variations in elevation — a maximum elevation change of 152 m around an average of 584 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 406 m; within 80 km, large variations in elevation — a maximum elevation change of 1,168 m.

The land around Mulongo is covered by water (35%) within 3 km, shrubs (28%) and grassland (22%) within 16 km, and trees (50%) and grassland (23%) within 80 km.

3 km
152 m
16 km
406 m
80 km
1,168 m
treesshrubsgrasslandcroplandartificial surfaceswaterwetland
September weather nearby: Malemba-Nkulu 32 km · Manono 74 km · Kipamba 76 km · Bukama 198 km · Kabalo 198 km · Pweto 221 km · Nyunzu 237 km · Kamina 242 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 Mulongo (-7.8349°, 26.9985°, elevation 597 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).