Kalemie weather in September

In September, Kalemie sees average daytime highs of 28°C and overnight lows near 24°C, with 11 mm of rain across 2.7 wet days and about 12 hours of daylight. It is the 1st-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 51% of the time in September, and the air most often feels humid.

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 Kalemie's 4th-clearest and 5th-windiest month. For the whole year in context, see Kalemie's year-round climate.

Daytime high
28°
1st warmest
Overnight low
24°
12th coldest
Rainfall
11 mm
2.7 wet days
Daylight
12 hours
5:59 AM – 5:57 PM
Cloud cover
44%
4th clearest
Wind
9 km/h
5th windiest
Solar energy
6.41 kWh/m²
Travel score
7.3
out of 10

Kalemie is ville de la République démocratique du Congo.

Founded
1891

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 Kalemie reaches about 28°C in the afternoon and slips back to 24°C overnight — a 5°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 29°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

20°23°25°28°30°151015202530
Avg high (°C)Avg low (°C)
12823
22824
32824
42824
52824
62824
72824
82824
92824
102824
112824
122824
132824
142824
152824
162824
172824
182824
192824
202824
212824
222824
232824
242824
252824
262824
272824
282824
292824
302824

Kalemie weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 23°10821.712.34.6
Feb27° / 23°9117.412.24.9
Mar26° / 23°14822.7124.5
Apr26° / 23°18023.211.94.5
May26° / 24°6110.111.76.9
Jun26° / 23°20.711.78.6
Jul26° / 23°10.211.78.9
Aug27° / 23°30.611.88.5
Sep28° / 24°112.7127.3
Oct28° / 23°5810.412.16.0
Nov26° / 23°11118.112.35.0
Dec26° / 22°12323.312.34.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 51% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 16% of September, with mostly cloudy or overcast conditions the remaining 34%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17525
27525
37426
47327
57327
67129
77129
87129
97129
107129
117129
127030
136931
146931
156931
166832
176832
186733
196733
206535
216436
226337
236238
246040
255941
265842
275743
285644
295545
305248

Chance of precipitation in September

Any precipitation

Kalemie gets around 11 mm of rain over 2.7 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 10% and peaks near 20% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
15
26
36
46
56
67
77
87
97
107
118
128
138
148
158
168
178
188
199
209
219
2210
2311
2412
2513
2615
2716
2817
2918
3020

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the humid band about 48% of days. Sticky, muggy-or-worse air turns up on roughly 41% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)
1225325
2215326
3205327
4195328
5185428
6175429
7165430
8155431
9145333
10135334
11125335
12115336
13115237
14105139
1595140
1695041
1785042
1875043
1964944
2064845
2154747
2254649
2344551
2444452
2544254
2634156
2733958
2823860
2923662
3023464

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 9 km/h on the calmest days to 10 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

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 6:06 AM to 5:51 AM, and sunset from 5:59 PM to 5:54 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:065:59
211.96:065:59
311.96:055:59
411.96:055:59
511.96:045:59
611.96:045:59
711.96:035:58
811.96:035:58
911.96:025:58
1011.96:025:58
1111.96:015:58
1211.96:015:57
1312.06:005:57
1412.06:005:57
1512.05:595:57
1612.05:595:57
1712.05:585:56
1812.05:575:56
1912.05:575:56
2012.05:565:56
2112.05:565:56
2212.05:555:55
2312.05:555:55
2412.05:545:55
2512.05:545:55
2612.05:535:55
2712.05:535:54
2812.05:525:54
2912.05:525:54
3012.05:515:54

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.41 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 5.02 kWh/m² to a high of 6.41 kWh/m² in September across the year — September's 6.41 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.4Intense
56.4Intense
66.4Intense
76.4Intense
86.4Intense
96.4Intense
106.4Intense
116.4Intense
126.4Intense
136.4Intense
146.4Intense
156.4Intense
166.4Intense
176.5Intense
186.5Intense
196.5Intense
206.5Intense
216.5Intense
226.4Intense
236.4Intense
246.4Intense
256.4Intense
266.4Intense
276.4Intense
286.3Intense
296.3Intense
306.3Intense
Planning a trip in September

Hazard calendar for Kalemie

In seasonPeak

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

Kalemie's rainy season runs November–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 Kalemie?

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

7.3
Sightseeing
4th-best month of the year
8.2
Beach & pool
3rd-best month of the year

September is one of the better times to visit Kalemie for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Kalemie in September

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

In September, Kalemie sees daytime highs around 28°C and nights near 24°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Kalemie 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 Kalemie peaks around March 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 15 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 highExtremeMar 15UV 15Aug 15UV 8
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar16Extreme
Apr14Extreme
May11Extreme
Jun9Very high
Jul10Very high
Aug7Very high
Sep11Extreme
Oct13Extreme
Nov12Extreme
Dec13Extreme

Air quality in Kalemie 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 Kalemie is worst in September — around 54 µg/m³ PM2.5 (poor), about 7.2× the cleanest month (April, 8 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModeratePoorModerateGoodSep 954 µg/m³Apr 118 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb14Moderate
Mar10Good
Apr8Good
May17Moderate
Jun42Poor
Jul45Poor
Aug54Poor
Sep54Poor
Oct20Moderate
Nov11Good
Dec9Good
Location & terrain

Where is Kalemie?

Kalemie sits at 5.9°S, 29.2°E, 787 m above sea level, in Democratic Republic of the Congo. The nearest listed city is Kalima, 120 km away.

KalimaKigomaNyunzuMwandigaBaudhuinvilleUvinzaKasuluPepa

Topography around Kalemie

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

Within 3 km, the terrain around Kalemie has only modest variations in elevation — a maximum elevation change of 147 m around an average of 795 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 569 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,739 m.

The land around Kalemie is covered by water (47%), artificial surfaces (25%) and grassland (22%) within 3 km, grassland (51%) and water (39%) within 16 km, and trees (38%), water (37%) and grassland (24%) within 80 km.

3 km
147 m
16 km
569 m
80 km
1,739 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Kalima 120 km · Kigoma 128 km · Nyunzu 130 km · Mwandiga 134 km · Baudhuinville 140 km · Uvinza 162 km · Kasulu 183 km · Pepa 205 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 Kalemie (-5.9475°, 29.1947°, elevation 787 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).