Bertoua weather in September

In September, Bertoua sees average daytime highs of 28°C and overnight lows near 20°C, with 166 mm of rain across 24.5 wet days and about 12 hours of daylight. It is the 10th-warmest and 2nd-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 2% of the time in September, and the air most often feels muggy.

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 Bertoua's 11th-clearest and 6th-windiest month. For the whole year in context, see Bertoua's year-round climate.

Daytime high: 28°; 10th warmest
Overnight low: 20°; 6th coldest
Rainfall: 166 mm; 24.5 wet days
Daylight: 12 hours; 5:59 AM – 6:00 PM
Cloud cover: 81%; 11th clearest
Wind: 6 km/h; 6th windiest
Solar energy: 4.55 kWh/m²
Travel score: 4.0; out of 10

Bertoua is commune of Cameroon.

Density: 1,380/km²; people per km²
Founded: 1927

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

← August Bertoua 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 28°C through the month.

A typical September day in Bertoua reaches about 28°C in the afternoon and slips back to 20°C overnight — a 7°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 29°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)	27	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28	28
Avg low (°C)	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20	20

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

How September really feels in Bertoua

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

heat index over the day's high

Days feeling ≤ 0°C

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.

Bertoua weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 2nd-wettest month here — the current month is highlighted below.

Month	High / Low (°C)	Rainfall (mm)	Wet days	Daylight (hours)	Travel score
Jan	31° / 19°	13	3.1	11.8	5.0
Feb	32° / 21°	27	5.1	11.9	4.1
Mar	32° / 22°	105	14.1	12	3.7
Apr	30° / 21°	160	21.4	12.1	3.5
May	29° / 21°	140	22.3	12.2	3.8
Jun	28° / 21°	115	21.1	12.3	4.4
Jul	27° / 20°	129	22.1	12.2	4.5
Aug	27° / 20°	144	23	12.1	4.3
Sep	28° / 20°	166	24.5	12	4.0
Oct	28° / 20°	223	27.6	11.9	3.6
Nov	29° / 20°	130	16.7	11.8	4.5
Dec	30° / 19°	25	4.2	11.7	5.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 2% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 88%.

	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 (%)	9	9	10	10	10	10	11	12	12	12	13	13	13	13	14	14	14	14	14	14	14	13	13	13	13	13	13	13	13	13
Cloudier (%)	91	91	90	90	90	90	89	88	88	88	87	87	87	87	86	86	86	86	86	86	86	87	87	87	87	87	87	87	87	87

	Clearer (%)	Cloudier (%)
1	9	91
2	9	91
3	10	90
4	10	90
5	10	90
6	10	90
7	11	89
8	12	88
9	12	88
10	12	88
11	13	87
12	13	87
13	13	87
14	13	87
15	14	86
16	14	86
17	14	86
18	14	86
19	14	86
20	14	86
21	14	86
22	13	87
23	13	87
24	13	87
25	13	87
26	13	87
27	13	87
28	13	87
29	13	87
30	13	87

Chance of precipitation in September

Any precipitation

Bertoua gets around 166 mm of rain over 24.5 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 82% and peaks near 86% 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 (%)	78	78	78	78	78	78	78	79	79	80	80	81	82	82	83	83	84	84	84	85	85	85	85	85	86	86	86	86	86	86

	Rain chance (%)
1	78
2	78
3	78
4	78
5	78
6	78
7	78
8	79
9	79
10	80
11	80
12	81
13	82
14	82
15	83
16	83
17	84
18	84
19	84
20	85
21	85
22	85
23	85
24	85
25	86
26	86
27	86
28	86
29	86
30	86

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 97% 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 (%)	99	99	99	99	98	98	98	98	98	97	97	97	97	97	96	96	96	96	96	96	96	96	96	95	95	95	95	94	94	93
Oppressive (%)	1	1	1	1	2	2	2	2	2	3	3	3	3	3	4	4	4	4	4	4	4	4	4	5	5	5	5	6	6	7

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

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 7 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)	7	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	6	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	7	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	6	calm
23	6	calm
24	6	calm
25	6	calm
26	6	calm
27	6	calm
28	6	calm
29	6	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 6:02 AM to 5:56 AM, and sunset from 6:08 PM to 5:54 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)	6:02	6:02	6:02	6:02	6:01	6:01	6:01	6:01	6:01	6:00	6:00	6:00	6:00	5:59	5:59	5:59	5:59	5:58	5:58	5:58	5:58	5:57	5:57	5:57	5:57	5:56	5:56	5:56	5:56	5:56
Sunset (PM)	6:08	6:07	6:07	6:06	6:06	6:05	6:05	6:04	6:04	6:03	6:03	6:02	6:02	6:01	6:01	6:00	6:00	5:59	5:59	5:58	5:58	5:57	5:57	5:56	5:56	5:55	5:55	5:54	5:54	5:54

	Daylight (h)	Sunrise (AM)	Sunset (PM)
1	12.1	6:02	6:08
2	12.1	6:02	6:07
3	12.1	6:02	6:07
4	12.1	6:02	6:06
5	12.1	6:01	6:06
6	12.1	6:01	6:05
7	12.1	6:01	6:05
8	12.1	6:01	6:04
9	12.1	6:01	6:04
10	12.1	6:00	6:03
11	12.0	6:00	6:03
12	12.0	6:00	6:02
13	12.0	6:00	6:02
14	12.0	5:59	6:01
15	12.0	5:59	6:01
16	12.0	5:59	6:00
17	12.0	5:59	6:00
18	12.0	5:58	5:59
19	12.0	5:58	5:59
20	12.0	5:58	5:58
21	12.0	5:58	5:58
22	12.0	5:57	5:57
23	12.0	5:57	5:57
24	12.0	5:57	5:56
25	12.0	5:57	5:56
26	12.0	5:56	5:55
27	12.0	5:56	5:55
28	12.0	5:56	5:54
29	12.0	5:56	5:54
30	12.0	5:56	5:54

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.55 kWh/m².

For context, solar energy here swings from a low near 4.38 kWh/m² to a high of 6.01 kWh/m² in February across the year — September's 4.55 kWh/m² sits near the bottom.

	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)	4.4	4.4	4.4	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.5	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6	4.6
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	4.4	Bright
2	4.4	Bright
3	4.4	Bright
4	4.5	Bright
5	4.5	Bright
6	4.5	Bright
7	4.5	Bright
8	4.5	Bright
9	4.5	Bright
10	4.5	Bright
11	4.5	Bright
12	4.6	Bright
13	4.6	Bright
14	4.6	Bright
15	4.6	Bright
16	4.6	Bright
17	4.6	Bright
18	4.6	Bright
19	4.6	Bright
20	4.6	Bright
21	4.6	Bright
22	4.6	Bright
23	4.6	Bright
24	4.6	Bright
25	4.6	Bright
26	4.6	Bright
27	4.6	Bright
28	4.6	Bright
29	4.6	Bright
30	4.6	Bright

Planning a trip in September

Hazard calendar for Bertoua

In seasonPeak

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

Bertoua sees seasonal dust haze (March), heaviest in March.

Dust

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

Is September a good time to visit Bertoua?

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

4.0

Sightseeing

8th-best month of the year

4.2

Beach & pool

11th-best month of the year

September is a reasonable time to visit Bertoua for sightseeing.

What to pack for Bertoua in September

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

In September, Bertoua sees daytime highs around 28°C and nights near 20°C. Pack light clothes and rain gear. Worth having: sun protection. About 25 days see rain.

light clothesrain gearsun protection

UV index in Bertoua 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 Bertoua peaks around March 22 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 15 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)	11	11	14	14	12	10	11	12	13	13	10	9
Level	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Extreme	Very high

	UV index (midday)	Level
Jan	11	Extreme
Feb	11	Extreme
Mar	14	Extreme
Apr	14	Extreme
May	12	Extreme
Jun	10	Extreme
Jul	11	Extreme
Aug	12	Extreme
Sep	13	Extreme
Oct	13	Extreme
Nov	10	Extreme
Dec	9	Very high

Air quality in Bertoua 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 Bertoua is worst in February — around 96 µg/m³ PM2.5 (unhealthy), about 10.8× the cleanest month (September, 9 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)	54	96	48	26	15	15	13	11	9	12	17	33
Level	Poor	Unhealthy	Poor	Moderate	Moderate	Moderate	Moderate	Good	Good	Moderate	Moderate	Moderate

	PM2.5 (µg/m³)	Level
Jan	54	Poor
Feb	96	Unhealthy
Mar	48	Poor
Apr	26	Moderate
May	15	Moderate
Jun	15	Moderate
Jul	13	Moderate
Aug	11	Good
Sep	9	Good
Oct	12	Moderate
Nov	17	Moderate
Dec	33	Moderate

Location & terrain

Where is Bertoua?

Bertoua sits at 4.6°N, 13.7°E, 665 m above sea level, in Cameroon. The nearest listed city is Bélabo, 58 km away.

Topography around Bertoua

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

Within 3 km, the terrain around Bertoua has only modest variations in elevation — a maximum elevation change of 52 m around an average of 654 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 216 m; within 80 km, significant variations in elevation — a maximum elevation change of 322 m.

The land around Bertoua is covered by artificial surfaces (54%), trees (23%) and grassland (23%) within 3 km, trees (64%) and grassland (32%) within 16 km, and trees (87%) within 80 km.

3 km

52 m

artificial surfaces 54%

16 km

216 m

trees 64%

80 km

322 m

trees 87%

treesshrubsgrasslandartificial surfaces

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

September weather nearby: Bélabo 58 km · Batouri 77 km · Abong Mbang 86 km · Nanga Eboko 147 km · Garoua Boulaï 174 km · Akonolinga 183 km · Abba 183 km · Nkoteng 183 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 Bertoua (4.5773°, 13.6846°, elevation 665 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	27	20
2	28	20
3	28	20
4	28	20
5	28	20
6	28	20
7	28	20
8	28	20
9	28	20
10	28	20
11	28	20
12	28	20
13	28	20
14	28	20
15	28	20
16	28	20
17	28	20
18	28	20
19	28	20
20	28	20
21	28	20
22	28	20
23	28	20
24	28	20
25	28	20
26	28	20
27	28	20
28	28	20
29	28	20
30	28	20

	Clearer (%)	Cloudier (%)
1	9	91
2	9	91
3	10	90
4	10	90
5	10	90
6	10	90
7	11	89
8	12	88
9	12	88
10	12	88
11	13	87
12	13	87
13	13	87
14	13	87
15	14	86
16	14	86
17	14	86
18	14	86
19	14	86
20	14	86
21	14	86
22	13	87
23	13	87
24	13	87
25	13	87
26	13	87
27	13	87
28	13	87
29	13	87
30	13	87

	Rain chance (%)
1	78
2	78
3	78
4	78
5	78
6	78
7	78
8	79
9	79
10	80
11	80
12	81
13	82
14	82
15	83
16	83
17	84
18	84
19	84
20	85
21	85
22	85
23	85
24	85
25	86
26	86
27	86
28	86
29	86
30	86

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

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

	Clearer (%)	Cloudier (%)
1	9	91
2	9	91
3	10	90
4	10	90
5	10	90
6	10	90
7	11	89
8	12	88
9	12	88
10	12	88
11	13	87
12	13	87
13	13	87
14	13	87
15	14	86
16	14	86
17	14	86
18	14	86
19	14	86
20	14	86
21	14	86
22	13	87
23	13	87
24	13	87
25	13	87
26	13	87
27	13	87
28	13	87
29	13	87
30	13	87

	Rain chance (%)
1	78
2	78
3	78
4	78
5	78
6	78
7	78
8	79
9	79
10	80
11	80
12	81
13	82
14	82
15	83
16	83
17	84
18	84
19	84
20	85
21	85
22	85
23	85
24	85
25	86
26	86
27	86
28	86
29	86
30	86

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

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

	Clearer (%)	Cloudier (%)
1	9	91
2	9	91
3	10	90
4	10	90
5	10	90
6	10	90
7	11	89
8	12	88
9	12	88
10	12	88
11	13	87
12	13	87
13	13	87
14	13	87
15	14	86
16	14	86
17	14	86
18	14	86
19	14	86
20	14	86
21	14	86
22	13	87
23	13	87
24	13	87
25	13	87
26	13	87
27	13	87
28	13	87
29	13	87
30	13	87

	Rain chance (%)
1	78
2	78
3	78
4	78
5	78
6	78
7	78
8	79
9	79
10	80
11	80
12	81
13	82
14	82
15	83
16	83
17	84
18	84
19	84
20	85
21	85
22	85
23	85
24	85
25	86
26	86
27	86
28	86
29	86
30	86

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