Gemena weather in September

In September, Gemena sees average daytime highs of 29°C and overnight lows near 21°C, with 159 mm of rain across 23.6 wet days and about 12 hours of daylight. It is the 9th-warmest and 3rd-wettest month of the year here.

Day-to-day highs hold fairly steady near 29°C through the month. The sky is clear or mostly clear about 4% of the time in September, and the air most often feels oppressive.

Daylight stretches from about 12 h 06 min at the start of September to 12 hours by month's end. Set against the rest of the year, September is Gemena's 10th-clearest and 11th-windiest month. For the whole year in context, see Gemena's year-round climate.

Daytime high: 29°; 9th warmest
Overnight low: 21°; 4th coldest
Rainfall: 159 mm; 23.6 wet days
Daylight: 12 hours; 5:35 AM – 5:36 PM
Cloud cover: 76%; 10th clearest
Wind: 5 km/h; 11th windiest
Solar energy: 5.16 kWh/m²
Travel score: 3.5; out of 10

Gemena is town in the northwest of the Democratic Republic of Congo.

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

← August Gemena 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 29°C through the month.

A typical September day in Gemena reaches about 29°C in the afternoon and slips back to 21°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 31°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)	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	30	30	30	30	30	30	30	30	30	30	30
Avg low (°C)	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	21	22	22	22	22	22	22

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

How September really feels in Gemena

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.

Gemena weather by month

How September compares with the rest of the year at a glance. September is the 9th-warmest and 3rd-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	32° / 21°	27	5.7	11.8	4.3
Feb	33° / 22°	51	8.6	11.9	3.5
Mar	32° / 23°	132	17.2	12	3.1
Apr	31° / 23°	138	19	12.1	3.3
May	31° / 23°	114	19	12.1	3.6
Jun	30° / 22°	96	18.2	12.2	3.9
Jul	29° / 22°	123	21.4	12.2	3.9
Aug	29° / 21°	162	24.8	12.1	3.6
Sep	29° / 21°	159	23.6	12	3.5
Oct	29° / 22°	182	25.4	11.9	3.4
Nov	30° / 22°	138	21.3	11.9	3.6
Dec	31° / 21°	44	8.5	11.8	4.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 4% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 17% of September, with mostly cloudy or overcast conditions the remaining 78%.

	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 (%)	19	19	19	20	21	21	21	21	21	21	22	22	22	22	22	22	22	22	22	22	22	23	23	22	22	22	22	22	22	22
Cloudier (%)	81	81	81	80	79	79	79	79	79	79	78	78	78	78	78	78	78	78	78	78	78	77	77	78	78	78	78	78	78	78

	Clearer (%)	Cloudier (%)
1	19	81
2	19	81
3	19	81
4	20	80
5	21	79
6	21	79
7	21	79
8	21	79
9	21	79
10	21	79
11	22	78
12	22	78
13	22	78
14	22	78
15	22	78
16	22	78
17	22	78
18	22	78
19	22	78
20	22	78
21	22	78
22	23	77
23	23	77
24	22	78
25	22	78
26	22	78
27	22	78
28	22	78
29	22	78
30	22	78

Chance of precipitation in September

Any precipitation

Gemena gets around 159 mm of rain over 23.6 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 79% and peaks near 81% on the wettest days.

	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 (%)	81	81	80	80	79	79	79	78	78	78	78	78	78	78	78	78	78	78	79	79	79	79	79	79	79	79	79	79	79	79

	Rain chance (%)
1	81
2	81
3	80
4	80
5	79
6	79
7	79
8	78
9	78
10	78
11	78
12	78
13	78
14	78
15	78
16	78
17	78
18	78
19	79
20	79
21	79
22	79
23	79
24	79
25	79
26	79
27	79
28	79
29	79
30	79

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 98% 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 (%)	3	3	3	3	3	3	3	3	3	3	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2
Oppressive (%)	97	97	97	97	97	97	97	97	97	97	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98

	Muggy (%)	Oppressive (%)
1	3	97
2	3	97
3	3	97
4	3	97
5	3	97
6	3	97
7	3	97
8	3	97
9	3	97
10	3	97
11	2	98
12	2	98
13	2	98
14	2	98
15	2	98
16	2	98
17	2	98
18	2	98
19	2	98
20	2	98
21	2	98
22	2	98
23	2	98
24	2	98
25	2	98
26	2	98
27	2	98
28	2	98
29	2	98
30	2	98

Wind in September

Winds average 5 km/h in September.

Across September, daily wind ranges from about 5 km/h on the calmest days to 5 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)	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	5	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	5	calm
2	5	calm
3	5	calm
4	5	calm
5	5	calm
6	5	calm
7	5	calm
8	5	calm
9	5	calm
10	5	calm
11	5	calm
12	5	calm
13	5	calm
14	5	calm
15	5	calm
16	5	calm
17	5	calm
18	5	calm
19	5	calm
20	5	calm
21	5	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 12 h 06 min at the start of September to 12 hours by month's end. The lit band spans sunrise to sunset each day.

Days shrink by about 6 minutes over September. Sunrise moves from 5:39 AM to 5:31 AM, and sunset from 5:42 PM to 5:29 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)	12.1	12.1	12.1	12.1	12.1	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	12.0	12.0	12.0
Sunrise (AM)	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	5:34	5:34	5:34	5:34	5:33	5:33	5:33	5:32	5:32	5:32	5:32	5:31	5:31	5:31
Sunset (PM)	5:42	5:42	5:42	5:41	5:41	5:40	5:40	5:39	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	5:30	5:29

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.1	5:39	5:42
2	12.1	5:38	5:42
3	12.1	5:38	5:42
4	12.1	5:38	5:41
5	12.1	5:38	5:41
6	12.0	5:37	5:40
7	12.0	5:37	5:40
8	12.0	5:37	5:39
9	12.0	5:37	5:39
10	12.0	5:36	5:39
11	12.0	5:36	5:38
12	12.0	5:36	5:38
13	12.0	5:36	5:37
14	12.0	5:35	5:37
15	12.0	5:35	5:36
16	12.0	5:35	5:36
17	12.0	5:34	5:35
18	12.0	5:34	5:35
19	12.0	5:34	5:34
20	12.0	5:34	5:34
21	12.0	5:33	5:33
22	12.0	5:33	5:33
23	12.0	5:33	5:33
24	12.0	5:32	5:32
25	12.0	5:32	5:32
26	12.0	5:32	5:31
27	12.0	5:32	5:31
28	12.0	5:31	5:30
29	12.0	5:31	5:30
30	12.0	5:31	5:29

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.16 kWh/m².

For context, solar energy here swings from a low near 4.91 kWh/m² to a high of 5.81 kWh/m² in February across the year — September's 5.16 kWh/m² falls in the middle.

	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)	5.0	5.0	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.1	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2	5.2
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	5.0	Bright
2	5.0	Bright
3	5.1	Bright
4	5.1	Bright
5	5.1	Bright
6	5.1	Bright
7	5.1	Bright
8	5.1	Bright
9	5.1	Bright
10	5.1	Bright
11	5.2	Bright
12	5.2	Bright
13	5.2	Bright
14	5.2	Bright
15	5.2	Bright
16	5.2	Bright
17	5.2	Bright
18	5.2	Bright
19	5.2	Bright
20	5.2	Bright
21	5.2	Bright
22	5.2	Bright
23	5.2	Bright
24	5.2	Bright
25	5.2	Bright
26	5.2	Bright
27	5.2	Bright
28	5.2	Bright
29	5.2	Bright
30	5.2	Bright

Planning a trip in September

Is September a good time to visit Gemena?

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

3.5

Sightseeing

8th-best month of the year

4.5

Beach & pool

11th-best month of the year

September is a weaker month for outdoor sightseeing in Gemena.

What to pack for Gemena in September

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

In September, Gemena sees daytime highs around 29°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 24 days see rain.

light clothesrain gearsun protection

UV index in Gemena in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Gemena peaks around April 17 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 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.

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
UV index (midday)	11	12	10	13	11	10	9	12	12	13	10	8
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Very high	Very high	Extreme	Extreme	Extreme	Very high	Very high

	UV index (midday)	Level
Jan	11	Extreme
Feb	12	Extreme
Mar	10	Extreme
Apr	13	Extreme
May	11	Extreme
Jun	10	Very high
Jul	9	Very high
Aug	12	Extreme
Sep	12	Extreme
Oct	13	Extreme
Nov	10	Very high
Dec	8	Very high

Air quality in Gemena 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 Gemena is worst in February — around 95 µg/m³ PM2.5 (unhealthy), about 7.1× the cleanest month (October, 14 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)	62	95	75	29	17	21	22	18	14	14	20	33
Level	Unhealthy	Unhealthy	Unhealthy	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	62	Unhealthy
Feb	95	Unhealthy
Mar	75	Unhealthy
Apr	29	Moderate
May	17	Moderate
Jun	21	Moderate
Jul	22	Moderate
Aug	18	Moderate
Sep	14	Moderate
Oct	14	Moderate
Nov	20	Moderate
Dec	33	Moderate

Location & terrain

Where is Gemena?

Gemena sits at 3.3°N, 19.8°E, 420 m above sea level, in Democratic Republic of the Congo. The nearest listed city is Businga, 124 km away.

Topography around Gemena

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

Within 3 km, the terrain around Gemena has only modest variations in elevation — a maximum elevation change of 145 m around an average of 414 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 205 m; within 80 km, significant variations in elevation — a maximum elevation change of 283 m.

The land around Gemena is covered by artificial surfaces (38%), trees (35%) and grassland (26%) within 3 km, grassland (51%) and trees (47%) within 16 km, and trees (67%) and grassland (32%) within 80 km.

3 km

145 m

artificial surfaces 38%

16 km

205 m

grassland 51%

80 km

283 m

trees 67%

treesshrubsgrasslandartificial surfaces

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

September weather nearby: Businga 124 km · Binga 127 km · Libenge 134 km · Mindouli 141 km · Bétou 141 km · Gbadolite 178 km · Zongo 178 km · Bangui 183 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 Gemena (3.2565°, 19.7723°, elevation 420 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	29	21
2	29	21
3	29	21
4	29	21
5	29	21
6	29	21
7	29	21
8	29	21
9	29	21
10	29	21
11	29	21
12	29	21
13	29	21
14	29	21
15	29	21
16	29	21
17	29	21
18	29	21
19	29	21
20	30	21
21	30	21
22	30	21
23	30	21
24	30	21
25	30	22
26	30	22
27	30	22
28	30	22
29	30	22
30	30	22

	Clearer (%)	Cloudier (%)
1	19	81
2	19	81
3	19	81
4	20	80
5	21	79
6	21	79
7	21	79
8	21	79
9	21	79
10	21	79
11	22	78
12	22	78
13	22	78
14	22	78
15	22	78
16	22	78
17	22	78
18	22	78
19	22	78
20	22	78
21	22	78
22	23	77
23	23	77
24	22	78
25	22	78
26	22	78
27	22	78
28	22	78
29	22	78
30	22	78

	Rain chance (%)
1	81
2	81
3	80
4	80
5	79
6	79
7	79
8	78
9	78
10	78
11	78
12	78
13	78
14	78
15	78
16	78
17	78
18	78
19	79
20	79
21	79
22	79
23	79
24	79
25	79
26	79
27	79
28	79
29	79
30	79

	Muggy (%)	Oppressive (%)
1	3	97
2	3	97
3	3	97
4	3	97
5	3	97
6	3	97
7	3	97
8	3	97
9	3	97
10	3	97
11	2	98
12	2	98
13	2	98
14	2	98
15	2	98
16	2	98
17	2	98
18	2	98
19	2	98
20	2	98
21	2	98
22	2	98
23	2	98
24	2	98
25	2	98
26	2	98
27	2	98
28	2	98
29	2	98
30	2	98

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

	Clearer (%)	Cloudier (%)
1	19	81
2	19	81
3	19	81
4	20	80
5	21	79
6	21	79
7	21	79
8	21	79
9	21	79
10	21	79
11	22	78
12	22	78
13	22	78
14	22	78
15	22	78
16	22	78
17	22	78
18	22	78
19	22	78
20	22	78
21	22	78
22	23	77
23	23	77
24	22	78
25	22	78
26	22	78
27	22	78
28	22	78
29	22	78
30	22	78

	Rain chance (%)
1	81
2	81
3	80
4	80
5	79
6	79
7	79
8	78
9	78
10	78
11	78
12	78
13	78
14	78
15	78
16	78
17	78
18	78
19	79
20	79
21	79
22	79
23	79
24	79
25	79
26	79
27	79
28	79
29	79
30	79

	Muggy (%)	Oppressive (%)
1	3	97
2	3	97
3	3	97
4	3	97
5	3	97
6	3	97
7	3	97
8	3	97
9	3	97
10	3	97
11	2	98
12	2	98
13	2	98
14	2	98
15	2	98
16	2	98
17	2	98
18	2	98
19	2	98
20	2	98
21	2	98
22	2	98
23	2	98
24	2	98
25	2	98
26	2	98
27	2	98
28	2	98
29	2	98
30	2	98

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

	Clearer (%)	Cloudier (%)
1	19	81
2	19	81
3	19	81
4	20	80
5	21	79
6	21	79
7	21	79
8	21	79
9	21	79
10	21	79
11	22	78
12	22	78
13	22	78
14	22	78
15	22	78
16	22	78
17	22	78
18	22	78
19	22	78
20	22	78
21	22	78
22	23	77
23	23	77
24	22	78
25	22	78
26	22	78
27	22	78
28	22	78
29	22	78
30	22	78

	Rain chance (%)
1	81
2	81
3	80
4	80
5	79
6	79
7	79
8	78
9	78
10	78
11	78
12	78
13	78
14	78
15	78
16	78
17	78
18	78
19	79
20	79
21	79
22	79
23	79
24	79
25	79
26	79
27	79
28	79
29	79
30	79

	Muggy (%)	Oppressive (%)
1	3	97
2	3	97
3	3	97
4	3	97
5	3	97
6	3	97
7	3	97
8	3	97
9	3	97
10	3	97
11	2	98
12	2	98
13	2	98
14	2	98
15	2	98
16	2	98
17	2	98
18	2	98
19	2	98
20	2	98
21	2	98
22	2	98
23	2	98
24	2	98
25	2	98
26	2	98
27	2	98
28	2	98
29	2	98
30	2	98