Njombé weather in September

In September, Njombé sees average daytime highs of 29°C and overnight lows near 23°C, with 322 mm of rain across 29.2 wet days and about 12 hours of daylight. It is the 10th-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 0% 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 Njombé's 12th-clearest and 9th-windiest month. For the whole year in context, see Njombé's year-round climate.

Daytime high: 29°; 10th warmest
Overnight low: 23°; 4th coldest
Rainfall: 322 mm; 29.2 wet days
Daylight: 12 hours; 6:15 AM – 6:16 PM
Cloud cover: 88%; 12th clearest
Wind: 3 km/h; 9th windiest
Solar energy: 3.6 kWh/m²
Travel score: 2.9; out of 10

Njombé is commune and town in Cameroon.

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

← August Njombé 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 Njombé reaches about 29°C in the afternoon and slips back to 23°C overnight — a 6°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 31°C. Set against its neighbours, September runs about 1°C warmer than 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)	28	28	28	28	28	28	28	28	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29	29
Avg low (°C)	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23	23

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

How September really feels in Njombé

Once humidity and wind are folded in, September averages 17 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.

Njombé weather by month

How September compares with the rest of the year at a glance. September is the 10th-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	33° / 23°	29	8.3	11.8	3.8
Feb	33° / 24°	50	11.7	11.9	3.0
Mar	33° / 24°	151	23.8	12	2.4
Apr	31° / 24°	236	26.9	12.1	2.5
May	30° / 23°	248	28.9	12.2	2.6
Jun	29° / 23°	283	28.8	12.3	3.0
Jul	28° / 22°	333	29.3	12.2	3.3
Aug	28° / 22°	367	29.2	12.1	3.4
Sep	29° / 23°	322	29.2	12	2.9
Oct	29° / 23°	305	30.2	11.9	2.7
Nov	30° / 23°	163	25.3	11.8	3.0
Dec	31° / 23°	44	12.4	11.7	4.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 0% of the time in September, the cloudiest month of the year.

Beyond those clear spells, partly cloudy skies cover about 2% of September, with mostly cloudy or overcast conditions the remaining 98%.

	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 (%)	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	2	3	3
Cloudier (%)	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	98	97	97

	Clearer (%)	Cloudier (%)
1	2	98
2	2	98
3	2	98
4	2	98
5	2	98
6	2	98
7	2	98
8	2	98
9	2	98
10	2	98
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	3	97
30	3	97

Chance of precipitation in September

Any precipitation

Njombé gets around 322 mm of rain over 29.2 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 97% and peaks near 97% 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 (%)	96	96	96	97	97	97	97	97	97	97	97	97	97	97	97	97	97	97	97	97	97	97	97	97	97	97	97	97	97	97

	Rain chance (%)
1	96
2	96
3	96
4	97
5	97
6	97
7	97
8	97
9	97
10	97
11	97
12	97
13	97
14	97
15	97
16	97
17	97
18	97
19	97
20	97
21	97
22	97
23	97
24	97
25	97
26	97
27	97
28	97
29	97
30	97

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 94% 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
Oppressive (%)	98	98	98	98	98	98	97	97	97	96	96	96	96	95	95	94	94	94	93	93	93	92	92	92	91	91	91	91	90	90
Miserable (%)	2	2	2	2	2	2	3	3	3	4	4	4	4	5	5	6	6	6	7	7	7	8	8	8	9	9	9	9	10	10

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

Wind in September

Winds average 3 km/h in September.

Across September, daily wind ranges from about 3 km/h on the calmest days to 3 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)	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3	3
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	3	calm
2	3	calm
3	3	calm
4	3	calm
5	3	calm
6	3	calm
7	3	calm
8	3	calm
9	3	calm
10	3	calm
11	3	calm
12	3	calm
13	3	calm
14	3	calm
15	3	calm
16	3	calm
17	3	calm
18	3	calm
19	3	calm
20	3	calm
21	3	calm
22	3	calm
23	3	calm
24	3	calm
25	3	calm
26	3	calm
27	3	calm
28	3	calm
29	3	calm
30	3	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 6:18 AM to 6:12 AM, and sunset from 6:24 PM to 6:10 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	12.1	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
Sunrise (AM)	6:18	6:18	6:18	6:18	6:18	6:17	6:17	6:17	6:17	6:16	6:16	6:16	6:16	6:15	6:15	6:15	6:15	6:14	6:14	6:14	6:14	6:13	6:13	6:13	6:13	6:13	6:12	6:12	6:12	6:12
Sunset (PM)	6:24	6:23	6:23	6:22	6:22	6:21	6:21	6:20	6:20	6:19	6:19	6:18	6:18	6:17	6:17	6:16	6:16	6:15	6:15	6:14	6:14	6:13	6:13	6:12	6:12	6:11	6:11	6:11	6:10	6:10

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.1	6:18	6:24
2	12.1	6:18	6:23
3	12.1	6:18	6:23
4	12.1	6:18	6:22
5	12.1	6:18	6:22
6	12.1	6:17	6:21
7	12.1	6:17	6:21
8	12.1	6:17	6:20
9	12.1	6:17	6:20
10	12.1	6:16	6:19
11	12.0	6:16	6:19
12	12.0	6:16	6:18
13	12.0	6:16	6:18
14	12.0	6:15	6:17
15	12.0	6:15	6:17
16	12.0	6:15	6:16
17	12.0	6:15	6:16
18	12.0	6:14	6:15
19	12.0	6:14	6:15
20	12.0	6:14	6:14
21	12.0	6:14	6:14
22	12.0	6:13	6:13
23	12.0	6:13	6:13
24	12.0	6:13	6:12
25	12.0	6:13	6:12
26	12.0	6:13	6:11
27	12.0	6:12	6:11
28	12.0	6:12	6:11
29	12.0	6:12	6:10
30	12.0	6:12	6:10

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 3.6 kWh/m².

For context, solar energy here swings from a low near 3.29 kWh/m² to a high of 5.09 kWh/m² in February across the year — September's 3.6 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)	3.4	3.4	3.4	3.4	3.5	3.5	3.5	3.5	3.5	3.5	3.6	3.6	3.6	3.6	3.6	3.6	3.6	3.7	3.7	3.7	3.7	3.7	3.7	3.7	3.7	3.7	3.7	3.7	3.8	3.8
Level	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate	Moderate

	Solar energy (kWh/m²)	Level
1	3.4	Moderate
2	3.4	Moderate
3	3.4	Moderate
4	3.4	Moderate
5	3.5	Moderate
6	3.5	Moderate
7	3.5	Moderate
8	3.5	Moderate
9	3.5	Moderate
10	3.5	Moderate
11	3.6	Moderate
12	3.6	Moderate
13	3.6	Moderate
14	3.6	Moderate
15	3.6	Moderate
16	3.6	Moderate
17	3.6	Moderate
18	3.7	Moderate
19	3.7	Moderate
20	3.7	Moderate
21	3.7	Moderate
22	3.7	Moderate
23	3.7	Moderate
24	3.7	Moderate
25	3.7	Moderate
26	3.7	Moderate
27	3.7	Moderate
28	3.7	Moderate
29	3.8	Moderate
30	3.8	Moderate

Planning a trip in September

Hazard calendar for Njombé

In seasonPeak

In September, Njombé sits inside its rainy season season. The full year is below, with each hazard's peak months called out.

Njombé's rainy season runs April–October, when most of the year's rain falls.

Njombé sees seasonal dust haze (January–March), heaviest in February.

Rainy season

Dust

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is September a good time to visit Njombé?

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

2.9

Sightseeing

8th-best month of the year

3.6

Beach & pool

11th-best month of the year

September is a weaker month for outdoor sightseeing in Njombé.

What to pack for Njombé in September

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

In September, Njombé sees daytime highs around 29°C and nights near 23°C. Pack light clothes and rain gear. About 29 days see rain.

light clothesrain gear

UV index in Njombé in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 13 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Njombé peaks around April 10 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 9 (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)	9	10	13	13	12	11	10	11	13	12	10	9
Level	Very high	Very high	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high

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

Air quality in Njombé 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 Njombé is worst in February — around 112 µg/m³ PM2.5 (unhealthy), about 4.2× the cleanest month (August, 27 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)	85	112	64	50	37	31	28	27	28	35	46	74
Level	Unhealthy	Unhealthy	Unhealthy	Poor	Poor	Moderate	Moderate	Moderate	Moderate	Poor	Poor	Unhealthy

	PM2.5 (µg/m³)	Level
Jan	85	Unhealthy
Feb	112	Unhealthy
Mar	64	Unhealthy
Apr	50	Poor
May	37	Poor
Jun	31	Moderate
Jul	28	Moderate
Aug	27	Moderate
Sep	28	Moderate
Oct	35	Poor
Nov	46	Poor
Dec	74	Unhealthy

Location & terrain

Where is Njombé?

Njombé sits at 4.6°N, 9.7°E, 74 m above sea level, in Cameroon. The nearest listed city is Penja, 7.0 km away.

Topography around Njombé

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

Within 3 km, the terrain around Njombé has significant variations in elevation — a maximum elevation change of 286 m around an average of 103 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 679 m; within 80 km, extreme variations in elevation — a maximum elevation change of 4,007 m.

The land around Njombé is covered by trees (84%) within 3 km, trees (95%) within 16 km, and trees (89%) within 80 km.

3 km

286 m

trees 84%

16 km

679 m

trees 95%

80 km

4,007 m

trees 89%

treesgrasslandartificial surfaceswatermangroves

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

September weather nearby: Penja 7.0 km · Mbanga 14 km · Loum 17 km · Tombel 18 km · Kumba 25 km · Manjo 34 km · Souza Gare 39 km · Muyuka 43 km

Cameroon travel facts

Travel advisory: Level 2; Exercise Increased Caution
Power plugs: Type C / E; 220 V · 50 Hz
Prices: ≈ 34% of US; price level, 2025
GDP per capita: $1,972; 2025
Happiness: 5.1 / 10; World Happiness, 2025
Homicide rate: 6.8; per 100k, 2022
Road deaths: 30.2; per 100k/yr, 2019
Income group: Lower middle; World Bank
English: Very low; EF EPI 445
Religion

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 Njombé (4.5806°, 9.6647°, elevation 74 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	28	23
2	28	23
3	28	23
4	28	23
5	28	23
6	28	23
7	28	23
8	28	23
9	29	23
10	29	23
11	29	23
12	29	23
13	29	23
14	29	23
15	29	23
16	29	23
17	29	23
18	29	23
19	29	23
20	29	23
21	29	23
22	29	23
23	29	23
24	29	23
25	29	23
26	29	23
27	29	23
28	29	23
29	29	23
30	29	23

	Clearer (%)	Cloudier (%)
1	2	98
2	2	98
3	2	98
4	2	98
5	2	98
6	2	98
7	2	98
8	2	98
9	2	98
10	2	98
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	3	97
30	3	97

	Rain chance (%)
1	96
2	96
3	96
4	97
5	97
6	97
7	97
8	97
9	97
10	97
11	97
12	97
13	97
14	97
15	97
16	97
17	97
18	97
19	97
20	97
21	97
22	97
23	97
24	97
25	97
26	97
27	97
28	97
29	97
30	97

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

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

	Clearer (%)	Cloudier (%)
1	2	98
2	2	98
3	2	98
4	2	98
5	2	98
6	2	98
7	2	98
8	2	98
9	2	98
10	2	98
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	3	97
30	3	97

	Rain chance (%)
1	96
2	96
3	96
4	97
5	97
6	97
7	97
8	97
9	97
10	97
11	97
12	97
13	97
14	97
15	97
16	97
17	97
18	97
19	97
20	97
21	97
22	97
23	97
24	97
25	97
26	97
27	97
28	97
29	97
30	97

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

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

	Clearer (%)	Cloudier (%)
1	2	98
2	2	98
3	2	98
4	2	98
5	2	98
6	2	98
7	2	98
8	2	98
9	2	98
10	2	98
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	3	97
30	3	97

	Rain chance (%)
1	96
2	96
3	96
4	97
5	97
6	97
7	97
8	97
9	97
10	97
11	97
12	97
13	97
14	97
15	97
16	97
17	97
18	97
19	97
20	97
21	97
22	97
23	97
24	97
25	97
26	97
27	97
28	97
29	97
30	97

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