Mangai weather in September

In September, Mangai sees average daytime highs of 30°C and overnight lows near 22°C, with 122 mm of rain across 21.8 wet days and about 12 hours of daylight. It is the 6th-warmest and 8th-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 11% of the time in September, and the air most often feels oppressive.

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 Mangai's 4th-clearest and 3rd-windiest month. For the whole year in context, see Mangai's year-round climate.

Daytime high: 30°; 6th warmest
Overnight low: 22°; 6th coldest
Rainfall: 122 mm; 21.8 wet days
Daylight: 12 hours; 5:37 AM – 5:36 PM
Cloud cover: 71%; 4th clearest
Wind: 6 km/h; 3rd windiest
Solar energy: 5.29 kWh/m²
Travel score: 3.5; out of 10

Mangai is place in Kwilu Province, Democratic Republic of the Congo.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

← August Mangai year-round climate October →Best places to visit in September

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

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 Mangai reaches about 30°C in the afternoon and slips back to 22°C overnight — a 8°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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Avg high (°C)	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30	30
Avg low (°C)	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22	22

	Avg high (°C)	Avg low (°C)
1	30	22
2	30	22
3	30	22
4	30	22
5	30	22
6	30	22
7	30	22
8	30	22
9	30	22
10	30	22
11	30	22
12	30	22
13	30	22
14	30	22
15	30	22
16	30	22
17	30	22
18	30	22
19	30	22
20	30	22
21	30	22
22	30	22
23	30	22
24	30	22
25	30	22
26	30	22
27	30	22
28	30	22
29	30	22
30	30	22

How September really feels in Mangai

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

heat index over the day's high

Days feeling ≤ 0°C

wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Mangai weather by month

How September compares with the rest of the year at a glance. September is the 6th-warmest and 8th-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	30° / 23°	134	20	12.2	3.7
Feb	30° / 23°	141	18.1	12.1	3.6
Mar	30° / 23°	154	22.2	12	3.4
Apr	30° / 23°	157	22.4	11.9	3.5
May	30° / 23°	98	17	11.8	4.2
Jun	30° / 22°	27	6.3	11.8	5.3
Jul	31° / 22°	19	4.6	11.8	5.2
Aug	30° / 22°	65	13.6	11.9	4.3
Sep	30° / 22°	122	21.8	12	3.5
Oct	30° / 22°	169	25.3	12.1	3.3
Nov	29° / 22°	176	24.2	12.2	3.4
Dec	29° / 22°	162	23.5	12.2	3.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 11% 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 68%.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Clearer (%)	38	38	37	36	36	34	34	34	33	32	32	32	32	32	32	32	33	32	32	32	32	32	31	30	30	30	29	29	28	26
Cloudier (%)	62	62	63	64	64	66	66	66	67	68	68	68	68	68	68	68	67	68	68	68	68	68	69	70	70	70	71	71	72	74

	Clearer (%)	Cloudier (%)
1	38	62
2	38	62
3	37	63
4	36	64
5	36	64
6	34	66
7	34	66
8	34	66
9	33	67
10	32	68
11	32	68
12	32	68
13	32	68
14	32	68
15	32	68
16	32	68
17	33	67
18	32	68
19	32	68
20	32	68
21	32	68
22	32	68
23	31	69
24	30	70
25	30	70
26	30	70
27	29	71
28	29	71
29	28	72
30	26	74

Chance of precipitation in September

Any precipitation

Mangai gets around 122 mm of rain over 21.8 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 72% and peaks near 77% on the wettest days. The odds climb toward the end of the month.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Rain chance (%)	61	63	64	65	66	67	68	69	70	70	71	72	72	73	73	73	74	74	74	74	75	75	75	76	76	76	76	77	77	77

	Rain chance (%)
1	61
2	63
3	64
4	65
5	66
6	67
7	68
8	69
9	70
10	70
11	71
12	72
13	72
14	73
15	73
16	73
17	74
18	74
19	74
20	74
21	75
22	75
23	75
24	76
25	76
26	76
27	76
28	77
29	77
30	77

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 95% of days. Sticky, muggy-or-worse air turns up on roughly 100% of them.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Muggy (%)	14	13	12	11	10	9	8	7	6	6	5	5	4	4	3	3	3	2	2	2	2	2	2	2	1	1	1	1	2	2
Oppressive (%)	86	87	88	89	90	91	92	93	94	94	95	95	96	96	97	97	97	98	98	98	98	98	98	98	99	99	99	99	98	98

	Muggy (%)	Oppressive (%)
1	14	86
2	13	87
3	12	88
4	11	89
5	10	90
6	9	91
7	8	92
8	7	93
9	6	94
10	6	94
11	5	95
12	5	95
13	4	96
14	4	96
15	3	97
16	3	97
17	3	97
18	2	98
19	2	98
20	2	98
21	2	98
22	2	98
23	2	98
24	2	98
25	1	99
26	1	99
27	1	99
28	1	99
29	2	98
30	2	98

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.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Wind speed (km/h)	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	5	5	5	5	5	5	5	5	5
Feels	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm	calm

	Wind speed (km/h)	Feels
1	6	calm
2	6	calm
3	6	calm
4	6	calm
5	6	calm
6	6	calm
7	6	calm
8	6	calm
9	6	calm
10	6	calm
11	6	calm
12	6	calm
13	6	calm
14	6	calm
15	6	calm
16	6	calm
17	6	calm
18	6	calm
19	6	calm
20	6	calm
21	6	calm
22	5	calm
23	5	calm
24	5	calm
25	5	calm
26	5	calm
27	5	calm
28	5	calm
29	5	calm
30	5	calm

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 5:44 AM to 5:30 AM, and sunset from 5:39 PM to 5:32 PM.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Daylight (h)	11.9	11.9	11.9	11.9	11.9	11.9	11.9	11.9	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0	12.0
Sunrise (AM)	5:44	5:43	5:43	5:43	5:42	5:42	5:41	5:41	5:40	5:40	5:39	5:39	5:38	5:38	5:37	5:37	5:36	5:36	5:35	5:35	5:34	5:34	5:33	5:33	5:33	5:32	5:32	5:31	5:31	5:30
Sunset (PM)	5:39	5:39	5:39	5:39	5:38	5:38	5:38	5:38	5:37	5:37	5:37	5:37	5:36	5:36	5:36	5:36	5:35	5:35	5:35	5:35	5:34	5:34	5:34	5:34	5:33	5:33	5:33	5:33	5:32	5:32

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	11.9	5:44	5:39
2	11.9	5:43	5:39
3	11.9	5:43	5:39
4	11.9	5:43	5:39
5	11.9	5:42	5:38
6	11.9	5:42	5:38
7	11.9	5:41	5:38
8	11.9	5:41	5:38
9	12.0	5:40	5:37
10	12.0	5:40	5:37
11	12.0	5:39	5:37
12	12.0	5:39	5:37
13	12.0	5:38	5:36
14	12.0	5:38	5:36
15	12.0	5:37	5:36
16	12.0	5:37	5:36
17	12.0	5:36	5:35
18	12.0	5:36	5:35
19	12.0	5:35	5:35
20	12.0	5:35	5:35
21	12.0	5:34	5:34
22	12.0	5:34	5:34
23	12.0	5:33	5:34
24	12.0	5:33	5:34
25	12.0	5:33	5:33
26	12.0	5:32	5:33
27	12.0	5:32	5:33
28	12.0	5:31	5:33
29	12.0	5:31	5:32
30	12.0	5:30	5:32

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.29 kWh/m².

For context, solar energy here swings from a low near 4.78 kWh/m² to a high of 5.36 kWh/m² in February across the year — September's 5.29 kWh/m² sits near the top of that range.

	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
Solar energy (kWh/m²)	5.2	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3	5.3
Level	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright	Bright

	Solar energy (kWh/m²)	Level
1	5.2	Bright
2	5.3	Bright
3	5.3	Bright
4	5.3	Bright
5	5.3	Bright
6	5.3	Bright
7	5.3	Bright
8	5.3	Bright
9	5.3	Bright
10	5.3	Bright
11	5.3	Bright
12	5.3	Bright
13	5.3	Bright
14	5.3	Bright
15	5.3	Bright
16	5.3	Bright
17	5.3	Bright
18	5.3	Bright
19	5.3	Bright
20	5.3	Bright
21	5.3	Bright
22	5.3	Bright
23	5.3	Bright
24	5.3	Bright
25	5.3	Bright
26	5.3	Bright
27	5.3	Bright
28	5.3	Bright
29	5.3	Bright
30	5.3	Bright

Planning a trip in September

Is September a good time to visit Mangai?

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

3.5

Sightseeing

7th-best month of the year

4.9

Beach & pool

7th-best month of the year

September is a weaker month for outdoor sightseeing in Mangai.

What to pack for Mangai in September

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

In September, Mangai sees daytime highs around 30°C and nights near 22°C. Pack light clothes and rain gear. Worth having: sun protection. About 22 days see rain.

light clothesrain gearsun protection

UV index in Mangai 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 Mangai peaks around March 17 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 14 at about 4 (moderate).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	12	13	14	13	9	8	7	4	10	13	13	9
Level	Extreme	Extreme	Extreme	Extreme	Very high	Very high	High	Moderate	Extreme	Extreme	Extreme	Very high

	UV index (midday)	Level
Jan	12	Extreme
Feb	13	Extreme
Mar	14	Extreme
Apr	13	Extreme
May	9	Very high
Jun	8	Very high
Jul	7	High
Aug	4	Moderate
Sep	10	Extreme
Oct	13	Extreme
Nov	13	Extreme
Dec	9	Very high

Air quality in Mangai 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 Mangai is worst in August — around 116 µg/m³ PM2.5 (unhealthy), about 10.3× the cleanest month (November, 11 µg/m³).

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

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
PM2.5 (µg/m³)	19	24	17	13	23	39	53	116	45	13	11	15
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Poor	Poor	Unhealthy	Poor	Moderate	Good	Moderate

	PM2.5 (µg/m³)	Level
Jan	19	Moderate
Feb	24	Moderate
Mar	17	Moderate
Apr	13	Moderate
May	23	Moderate
Jun	39	Poor
Jul	53	Poor
Aug	116	Unhealthy
Sep	45	Poor
Oct	13	Moderate
Nov	11	Good
Dec	15	Moderate

Location & terrain

Where is Mangai?

Mangai sits at 4.0°S, 19.5°E, 342 m above sea level, in Democratic Republic of the Congo. The nearest listed city is Dibaya-Lubwe, 39 km away.

Topography around Mangai

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

Within 3 km, the terrain around Mangai has only modest variations in elevation — a maximum elevation change of 109 m around an average of 354 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 208 m; within 80 km, significant variations in elevation — a maximum elevation change of 367 m.

The land around Mangai is covered by trees (47%) and water (33%) within 3 km, trees (79%) within 16 km, and trees (81%) within 80 km.

3 km

109 m

trees 47%

16 km

208 m

trees 79%

80 km

367 m

trees 81%

treesshrubsgrasslandcroplandartificial surfaceswater

← August Mangai year-round climate October →Best places to visit in September

September weather nearby: Dibaya-Lubwe 39 km · Dungu 88 km · Idiofa 105 km · Bulungu 118 km · Ilebo 122 km · Kikwit 138 km · Masi-Manimba 200 km · Kutu 211 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 Mangai (-4.0233°, 19.5339°, elevation 342 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).

	Avg high (°C)	Avg low (°C)
1	30	22
2	30	22
3	30	22
4	30	22
5	30	22
6	30	22
7	30	22
8	30	22
9	30	22
10	30	22
11	30	22
12	30	22
13	30	22
14	30	22
15	30	22
16	30	22
17	30	22
18	30	22
19	30	22
20	30	22
21	30	22
22	30	22
23	30	22
24	30	22
25	30	22
26	30	22
27	30	22
28	30	22
29	30	22
30	30	22

	Clearer (%)	Cloudier (%)
1	38	62
2	38	62
3	37	63
4	36	64
5	36	64
6	34	66
7	34	66
8	34	66
9	33	67
10	32	68
11	32	68
12	32	68
13	32	68
14	32	68
15	32	68
16	32	68
17	33	67
18	32	68
19	32	68
20	32	68
21	32	68
22	32	68
23	31	69
24	30	70
25	30	70
26	30	70
27	29	71
28	29	71
29	28	72
30	26	74

	Rain chance (%)
1	61
2	63
3	64
4	65
5	66
6	67
7	68
8	69
9	70
10	70
11	71
12	72
13	72
14	73
15	73
16	73
17	74
18	74
19	74
20	74
21	75
22	75
23	75
24	76
25	76
26	76
27	76
28	77
29	77
30	77

	Muggy (%)	Oppressive (%)
1	14	86
2	13	87
3	12	88
4	11	89
5	10	90
6	9	91
7	8	92
8	7	93
9	6	94
10	6	94
11	5	95
12	5	95
13	4	96
14	4	96
15	3	97
16	3	97
17	3	97
18	2	98
19	2	98
20	2	98
21	2	98
22	2	98
23	2	98
24	2	98
25	1	99
26	1	99
27	1	99
28	1	99
29	2	98
30	2	98

	Avg high (°C)	Avg low (°C)
1	30	22
2	30	22
3	30	22
4	30	22
5	30	22
6	30	22
7	30	22
8	30	22
9	30	22
10	30	22
11	30	22
12	30	22
13	30	22
14	30	22
15	30	22
16	30	22
17	30	22
18	30	22
19	30	22
20	30	22
21	30	22
22	30	22
23	30	22
24	30	22
25	30	22
26	30	22
27	30	22
28	30	22
29	30	22
30	30	22

	Clearer (%)	Cloudier (%)
1	38	62
2	38	62
3	37	63
4	36	64
5	36	64
6	34	66
7	34	66
8	34	66
9	33	67
10	32	68
11	32	68
12	32	68
13	32	68
14	32	68
15	32	68
16	32	68
17	33	67
18	32	68
19	32	68
20	32	68
21	32	68
22	32	68
23	31	69
24	30	70
25	30	70
26	30	70
27	29	71
28	29	71
29	28	72
30	26	74

	Rain chance (%)
1	61
2	63
3	64
4	65
5	66
6	67
7	68
8	69
9	70
10	70
11	71
12	72
13	72
14	73
15	73
16	73
17	74
18	74
19	74
20	74
21	75
22	75
23	75
24	76
25	76
26	76
27	76
28	77
29	77
30	77

	Muggy (%)	Oppressive (%)
1	14	86
2	13	87
3	12	88
4	11	89
5	10	90
6	9	91
7	8	92
8	7	93
9	6	94
10	6	94
11	5	95
12	5	95
13	4	96
14	4	96
15	3	97
16	3	97
17	3	97
18	2	98
19	2	98
20	2	98
21	2	98
22	2	98
23	2	98
24	2	98
25	1	99
26	1	99
27	1	99
28	1	99
29	2	98
30	2	98

	Avg high (°C)	Avg low (°C)
1	30	22
2	30	22
3	30	22
4	30	22
5	30	22
6	30	22
7	30	22
8	30	22
9	30	22
10	30	22
11	30	22
12	30	22
13	30	22
14	30	22
15	30	22
16	30	22
17	30	22
18	30	22
19	30	22
20	30	22
21	30	22
22	30	22
23	30	22
24	30	22
25	30	22
26	30	22
27	30	22
28	30	22
29	30	22
30	30	22

	Clearer (%)	Cloudier (%)
1	38	62
2	38	62
3	37	63
4	36	64
5	36	64
6	34	66
7	34	66
8	34	66
9	33	67
10	32	68
11	32	68
12	32	68
13	32	68
14	32	68
15	32	68
16	32	68
17	33	67
18	32	68
19	32	68
20	32	68
21	32	68
22	32	68
23	31	69
24	30	70
25	30	70
26	30	70
27	29	71
28	29	71
29	28	72
30	26	74

	Rain chance (%)
1	61
2	63
3	64
4	65
5	66
6	67
7	68
8	69
9	70
10	70
11	71
12	72
13	72
14	73
15	73
16	73
17	74
18	74
19	74
20	74
21	75
22	75
23	75
24	76
25	76
26	76
27	76
28	77
29	77
30	77

	Muggy (%)	Oppressive (%)
1	14	86
2	13	87
3	12	88
4	11	89
5	10	90
6	9	91
7	8	92
8	7	93
9	6	94
10	6	94
11	5	95
12	5	95
13	4	96
14	4	96
15	3	97
16	3	97
17	3	97
18	2	98
19	2	98
20	2	98
21	2	98
22	2	98
23	2	98
24	2	98
25	1	99
26	1	99
27	1	99
28	1	99
29	2	98
30	2	98