Inkisi weather in September

In September, Inkisi sees average daytime highs of 28°C and overnight lows near 20°C, with 21 mm of rain across 6.1 wet days and about 12 hours of daylight. It is the 9th-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 5% 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 Inkisi's 5th-clearest and 2nd-windiest month. For the whole year in context, see Inkisi's year-round climate.

Daytime high
28°
9th warmest
Overnight low
20°
4th coldest
Rainfall
21 mm
6.1 wet days
Daylight
12 hours
5:55 AM – 5:53 PM
Cloud cover
72%
5th clearest
Wind
9 km/h
2nd windiest
Solar energy
4.67 kWh/m²
Travel score
6.2
out of 10

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 Inkisi reaches about 28°C in the afternoon and slips back to 20°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 30°C. Set against its neighbours, September runs about 1°C warmer than August and on par with October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12819
22819
32819
42819
52819
62819
72820
82820
92820
102820
112820
122820
132820
142820
152820
162820
172820
182820
192820
202820
212820
222920
232920
242920
252920
262920
272920
282920
292920
302920

How September really feels in Inkisi

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.

Inkisi weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 21°13422.212.33.9
Feb29° / 21°9917.312.23.9
Mar30° / 21°12819.8123.6
Apr30° / 21°17424.311.93.3
May29° / 21°8215.311.84.8
Jun28° / 19°40.911.77.7
Jul27° / 18°10.111.78.0
Aug27° / 19°61.411.87.5
Sep28° / 20°216.1126.2
Oct29° / 21°1161912.14.3
Nov28° / 21°20325.312.23.5
Dec28° / 21°17925.712.33.6

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 21% of September, with mostly cloudy or overcast conditions the remaining 74%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
12575
22575
32575
42575
52575
62575
72575
82575
92575
102575
112575
122674
132674
142773
152773
162872
172872
182872
192872
202872
212872
222872
232872
242773
252773
262773
272674
282674
292674
302575

Chance of precipitation in September

Any precipitation

Inkisi gets around 21 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 32% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
17
28
39
410
511
612
713
814
916
1017
1118
1219
1320
1422
1523
1623
1724
1825
1925
2026
2126
2226
2326
2427
2527
2628
2728
2829
2931
3032

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 57% of days. Sticky, muggy-or-worse air turns up on roughly 43% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1284140
2185140
3184150
4183160
5181180
6080200
7078220
8076240
9073270
10070300
11068320
12065350
13062380
14059410
15056440
16053470
17050500
18048520
19045550
20043570
21041590
22040600
23039610
24037630
25036640
26035650
27034660
28032680
29031681
30030691

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
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
209calm
219calm
229calm
239calm
249calm
259calm
269calm
279calm
289calm
299calm
309calm

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 6:02 AM to 5:48 AM, and sunset from 5:57 PM to 5:50 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:025:57
211.96:025:56
311.96:025:56
411.96:015:56
511.96:015:56
611.96:005:56
711.96:005:55
811.95:595:55
911.95:595:55
1011.95:585:55
1111.95:585:54
1212.05:575:54
1312.05:565:54
1412.05:565:54
1512.05:555:54
1612.05:555:53
1712.05:545:53
1812.05:545:53
1912.05:535:53
2012.05:535:52
2112.05:525:52
2212.05:525:52
2312.05:515:52
2412.05:515:51
2512.05:505:51
2612.05:505:51
2712.05:495:51
2812.05:495:51
2912.05:485:50
3012.05:485:50

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.67 kWh/m².

For context, solar energy here swings from a low near 4.4 kWh/m² to a high of 5.25 kWh/m² in March across the year — September's 4.67 kWh/m² falls in the middle.

024151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.6Bright
54.6Bright
64.6Bright
74.6Bright
84.6Bright
94.6Bright
104.6Bright
114.6Bright
124.7Bright
134.7Bright
144.7Bright
154.7Bright
164.7Bright
174.7Bright
184.7Bright
194.7Bright
204.7Bright
214.7Bright
224.7Bright
234.7Bright
244.7Bright
254.7Bright
264.7Bright
274.8Bright
284.8Bright
294.8Bright
304.8Bright
Planning a trip in September

Hazard calendar for Inkisi

In seasonPeak

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

Inkisi'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 Inkisi?

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

6.2
Sightseeing
4th-best month of the year
7.1
Beach & pool
4th-best month of the year

September is a reasonable time to visit Inkisi for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Inkisi in September

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

In September, Inkisi sees daytime highs around 28°C and nights near 20°C. Pack light clothes. Worth having: sun protection. About 6 days see rain.

light clothessun protection

UV index in Inkisi in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 10 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Inkisi peaks around March 17 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 11 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighExtremeMar 17UV 15Aug 11UV 6
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May9Very high
Jun8Very high
Jul7High
Aug6High
Sep10Extreme
Oct13Extreme
Nov12Extreme
Dec10Extreme

Air quality in Inkisi 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 Inkisi is worst in July — around 61 µg/m³ PM2.5 (unhealthy), about 3.6× the cleanest month (November, 17 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyPoorModerateJul 1660 µg/m³Nov 2117 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb22Moderate
Mar21Moderate
Apr21Moderate
May35Moderate
Jun55Unhealthy
Jul61Unhealthy
Aug54Poor
Sep51Poor
Oct25Moderate
Nov17Moderate
Dec19Moderate
Location & terrain

Where is Inkisi?

Inkisi sits at 5.1°S, 15.1°E, 516 m above sea level, in Democratic Republic of the Congo. The nearest listed city is Mbanza-Ngungu, 26 km away.

Cuímba

Topography around Inkisi

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

Within 3 km, the terrain around Inkisi has only modest variations in elevation — a maximum elevation change of 141 m around an average of 532 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 195 m; within 80 km, large variations in elevation — a maximum elevation change of 757 m.

The land around Inkisi is covered by grassland (45%) and shrubs (20%) within 3 km, grassland (61%) and shrubs (23%) within 16 km, and grassland (56%) and trees (32%) within 80 km.

3 km
141 m
16 km
195 m
80 km
757 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Mbanza-Ngungu 26 km · Kasangulu 62 km · Kimpese 84 km · Masina 91 km · Kinshasa 94 km · Brazzaville 99 km · Maquela do Zombo 103 km · Cuímba 120 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 Inkisi (-5.1312°, 15.0541°, elevation 516 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).