Nyunzu weather in September

In September, Nyunzu sees average daytime highs of 32°C and overnight lows near 21°C, with 58 mm of rain across 11.2 wet days and about 12 hours of daylight. It is the 4th-warmest and 8th-wettest month of the year here.

Highs ease over the month, from about 33°C in the first days to 31°C by the end. The sky is clear or mostly clear about 25% of the time in September, and the air most often feels muggy.

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 Nyunzu's 5th-clearest and 6th-windiest month. For the whole year in context, see Nyunzu's year-round climate.

Daytime high
32°
4th warmest
Overnight low
21°
10th coldest
Rainfall
58 mm
11.2 wet days
Daylight
12 hours
6:03 AM – 6:01 PM
Cloud cover
61%
5th clearest
Wind
6 km/h
6th windiest
Solar energy
5.51 kWh/m²
Travel score
3.8
out of 10

Nyunzu is locality in 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

Highs ease over the month, from about 33°C in the first days to 31°C by the end.

A typical September day in Nyunzu reaches about 32°C in the afternoon and slips back to 21°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 34°C. Set against its neighbours, September runs about 1°C cooler than August and about 2°C warmer than October.

15°20°25°30°35°40°151015202530
Avg high (°C)Avg low (°C)
13321
23321
33321
43321
53321
63321
73321
83221
93221
103221
113221
123221
133221
143221
153221
163221
173221
183221
193221
203221
213221
223221
233221
243221
253121
263121
273121
283121
293121
303121

How September really feels in Nyunzu

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.

Nyunzu weather by month

How September compares with the rest of the year at a glance. September is the 4th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan28° / 20°18423.212.33.8
Feb29° / 21°15319.512.23.7
Mar30° / 21°17723123.5
Apr30° / 21°12617.711.93.8
May32° / 21°316.811.74.3
Jun33° / 20°30.611.74.4
Jul33° / 20°10.311.74.3
Aug33° / 21°13311.84.0
Sep32° / 21°5811.2123.8
Oct30° / 21°16622.612.13.5
Nov28° / 20°23726.612.33.5
Dec28° / 20°21627.112.33.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 25% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 24% of September, with mostly cloudy or overcast conditions the remaining 51%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
16040
25941
35842
45743
55644
65545
75446
85347
95248
105248
115149
125149
135050
145050
154951
164951
174951
184951
194951
204753
214654
224654
234654
244456
254357
264258
274159
283961
293862
303664

Chance of precipitation in September

Any precipitation

Nyunzu gets around 58 mm of rain over 11.2 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 38% and peaks near 55% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
121
222
324
425
526
628
729
830
931
1033
1134
1235
1336
1436
1537
1638
1739
1839
1940
2041
2142
2244
2345
2446
2548
2649
2751
2852
2954
3055

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 52% of days. Sticky, muggy-or-worse air turns up on roughly 56% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1291923290
2271923301
3251824321
4231824341
5211824351
6191824371
7181824392
8161824412
9141724422
10121724442
11111724463
12101723473
1391623493
1481623503
1571523523
1661522534
1761422544
1851322564
1951221584
2041121604
2141020615
2241019625
233919645
243818665
253717676
263716686
272615707
282614717
292513728
302512729

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
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
295calm
305calm

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 6:11 AM to 5:56 AM, and sunset from 6:04 PM to 5:59 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:116:04
211.96:116:04
311.96:106:04
411.96:106:04
511.96:096:03
611.96:096:03
711.96:086:03
811.96:086:03
911.96:076:03
1011.96:066:03
1111.96:066:02
1211.96:056:02
1312.06:056:02
1412.06:046:02
1512.06:046:01
1612.06:036:01
1712.06:036:01
1812.06:026:01
1912.06:026:01
2012.06:016:00
2112.06:016:00
2212.06:006:00
2312.05:596:00
2412.05:596:00
2512.05:586:00
2612.05:585:59
2712.05:575:59
2812.05:575:59
2912.05:565:59
3012.05:565:59

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.51 kWh/m².

For context, solar energy here swings from a low near 4.92 kWh/m² to a high of 5.53 kWh/m² in February across the year — September's 5.51 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.5Bright
25.5Bright
35.5Bright
45.5Bright
55.5Bright
65.5Bright
75.5Bright
85.5Bright
95.5Bright
105.5Bright
115.5Bright
125.5Bright
135.5Bright
145.5Bright
155.5Bright
165.5Bright
175.5Bright
185.5Bright
195.5Bright
205.5Bright
215.5Bright
225.5Bright
235.5Bright
245.5Bright
255.5Bright
265.5Bright
275.5Bright
285.5Bright
295.5Bright
305.5Bright
Planning a trip in September

Hazard calendar for Nyunzu

In seasonPeak

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

Nyunzu's rainy season runs October–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 Nyunzu?

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

3.8
Sightseeing
5th-best month of the year
6.1
Beach & pool
5th-best month of the year

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

What to pack for Nyunzu in September

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

In September, Nyunzu sees daytime highs around 32°C and nights near 21°C. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

UV index in Nyunzu 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 Nyunzu peaks around March 16 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 14 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 highExtremeMar 16UV 15Aug 14UV 7
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May11Extreme
Jun9Very high
Jul9Very high
Aug7Very high
Sep11Extreme
Oct13Extreme
Nov11Extreme
Dec13Extreme

Air quality in Nyunzu 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 Nyunzu is worst in July — around 100 µg/m³ PM2.5 (unhealthy), about 10.9× the cleanest month (April, 9 µg/m³).

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

0306090120JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateUnhealthyModerateGoodJul 1997 µg/m³Apr 109 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb15Moderate
Mar10Good
Apr9Good
May27Moderate
Jun70Unhealthy
Jul100Unhealthy
Aug86Unhealthy
Sep40Poor
Oct18Moderate
Nov12Good
Dec10Good
Location & terrain

Where is Nyunzu?

Nyunzu sits at 6.0°S, 28.0°E, 734 m above sea level, in Democratic Republic of the Congo. The nearest listed city is Kalima, 57 km away.

KabaloKongoloKalemieManonoKigomaMwandigaKasongo

Topography around Nyunzu

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

Within 3 km, the terrain around Nyunzu has only modest variations in elevation — a maximum elevation change of 87 m around an average of 724 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 250 m; within 80 km, large variations in elevation — a maximum elevation change of 853 m.

The land around Nyunzu is covered by grassland (59%) and shrubs (20%) within 3 km, shrubs (40%), grassland (36%) and trees (23%) within 16 km, and trees (53%), grassland (27%) and shrubs (20%) within 80 km.

3 km
87 m
16 km
250 m
80 km
853 m
treesshrubsgrasslandartificial surfaceswetland
September weather nearby: Kalima 57 km · Kabalo 122 km · Kongolo 129 km · Kalemie 130 km · Manono 164 km · Kigoma 215 km · Mwandiga 221 km · Kasongo 226 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 Nyunzu (-5.9561°, 28.0165°, elevation 734 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).