Wum weather in September

In September, Wum sees average daytime highs of 26°C and overnight lows near 19°C, with 422 mm of rain across 29.7 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 26°C through the month. The sky is clear or mostly clear about 0% 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 Wum's 12th-clearest and 12th-windiest month. For the whole year in context, see Wum's year-round climate.

Daytime high
26°
10th warmest
Overnight low
19°
7th coldest
Rainfall
422 mm
29.7 wet days
Daylight
12 hours
6:13 AM – 6:15 PM
Cloud cover
91%
12th clearest
Wind
3 km/h
12th windiest
Solar energy
4.06 kWh/m²
Travel score
3.3
out of 10

Wum is commune of Cameroon.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 26°C through the month.

A typical September day in Wum reaches about 26°C in the afternoon and slips back to 19°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 24°C and 28°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12619
22619
32619
42619
52619
62619
72619
82619
92619
102619
112619
122619
132619
142619
152619
162619
172619
182619
192619
202619
212719
222719
232719
242719
252719
262719
272719
282719
292719
302719

How September really feels in Wum

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.

Wum 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.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan32° / 15°111.511.75.2
Feb32° / 17°313.611.84.3
Mar32° / 19°11414.1123.6
Apr30° / 20°28825.112.13.1
May28° / 19°43330.612.33.0
Jun27° / 19°36029.612.43.3
Jul26° / 19°31129.912.33.5
Aug25° / 19°32629.712.23.5
Sep26° / 19°42229.7123.3
Oct28° / 18°49329.811.93.4
Nov29° / 17°13612.611.74.8
Dec31° / 15°101.211.65.8

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 0% of September, with mostly cloudy or overcast conditions the remaining 100%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1199
2199
3199
4199
50100
60100
70100
80100
90100
100100
110100
120100
130100
140100
150100
160100
170100
180100
190100
200100
210100
220100
230100
240100
250100
260100
270100
280100
290100
300100

Chance of precipitation in September

Any precipitation

Wum gets around 422 mm of rain over 29.7 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 99% and peaks near 100% on the wettest days.

0%20%40%60%80%100%151015202530
Rain chance (%)
197
297
397
497
598
698
798
898
998
1099
1199
1299
1399
1499
1599
1699
1799
1899
1999
2099
2199
22100
23100
24100
25100
26100
27100
28100
29100
30100

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

0%25%50%75%100%151015202530
Muggy (%)
1100
2100
3100
4100
5100
6100
7100
8100
9100
10100
11100
12100
13100
14100
15100
16100
17100
18100
19100
20100
21100
22100
23100
24100
25100
26100
27100
28100
29100
30100

Wind in September

Winds average 3 km/h in September, the calmest month.

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.

0246810151015202530
Wind speed (km/h)Feels
13calm
23calm
33calm
43calm
53calm
63calm
73calm
83calm
93calm
103calm
113calm
123calm
133calm
143calm
153calm
163calm
173calm
183calm
193calm
203calm
213calm
223calm
233calm
243calm
253calm
263calm
273calm
283calm
293calm
303calm

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 6:16 AM to 6:11 AM, and sunset from 6:23 PM to 6:08 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
112.16:166:23
212.16:166:23
312.16:156:22
412.16:156:22
512.16:156:21
612.16:156:21
712.16:156:20
812.16:156:19
912.16:146:19
1012.16:146:18
1112.16:146:18
1212.16:146:17
1312.16:146:17
1412.06:136:16
1512.06:136:16
1612.06:136:15
1712.06:136:15
1812.06:136:14
1912.06:126:13
2012.06:126:13
2112.06:126:12
2212.06:126:12
2312.06:126:11
2412.06:126:11
2512.06:116:10
2612.06:116:10
2712.06:116:09
2812.06:116:09
2912.06:116:08
3012.06:116:08

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.06 kWh/m².

For context, solar energy here swings from a low near 3.77 kWh/m² to a high of 6.39 kWh/m² in February across the year — September's 4.06 kWh/m² sits near the bottom.

012345151015202530
Solar energy (kWh/m²)Level
13.9Moderate
23.9Moderate
33.9Moderate
43.9Moderate
53.9Moderate
63.9Moderate
74.0Moderate
84.0Moderate
94.0Moderate
104.0Bright
114.0Bright
124.0Bright
134.0Bright
144.1Bright
154.1Bright
164.1Bright
174.1Bright
184.1Bright
194.1Bright
204.1Bright
214.1Bright
224.2Bright
234.2Bright
244.2Bright
254.2Bright
264.2Bright
274.2Bright
284.2Bright
294.2Bright
304.2Bright
Planning a trip in September

Hazard calendar for Wum

In seasonPeak

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

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

Wum sees seasonal dust haze (December–April), 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 Wum?

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

3.3
Sightseeing
9th-best month of the year
3.3
Beach & pool
12th-best month of the year

September is a weaker month for outdoor sightseeing in Wum.

What to pack for Wum in September

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

In September, Wum sees daytime highs around 26°C and nights near 19°C. Pack rain gear. Worth having: light clothes. About 30 days see rain.

rain gearlight clothes

UV index in Wum 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 Wum peaks around March 21 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near December 19 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecVery highExtremeVery highMar 21UV 14Dec 19UV 9
UV index (midday)Level
Jan10Very high
Feb10Very high
Mar14Extreme
Apr13Extreme
May13Extreme
Jun12Extreme
Jul12Extreme
Aug12Extreme
Sep13Extreme
Oct13Extreme
Nov11Extreme
Dec9Very high

Air quality in Wum 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 Wum is worst in February — around 123 µg/m³ PM2.5 (unhealthy), about 5.7× the cleanest month (July, 22 µg/m³).

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

0306090120150JanFebMarAprMayJunJulAugSepOctNovDecUnhealthyPoorModeratePoorUnhealthyFeb 13120 µg/m³Jul 2022 µg/m³
PM2.5 (µg/m³)Level
Jan107Unhealthy
Feb123Unhealthy
Mar95Unhealthy
Apr53Poor
May30Moderate
Jun25Moderate
Jul22Moderate
Aug23Moderate
Sep24Moderate
Oct34Moderate
Nov45Poor
Dec79Unhealthy
Location & terrain

Where is Wum?

Wum sits at 6.4°N, 10.1°E, 1,055 m above sea level, in Cameroon. The nearest listed city is Fundong, 27 km away.

Nkambe

Topography around Wum

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

Within 3 km, the terrain around Wum has only modest variations in elevation — a maximum elevation change of 223 m around an average of 1,069 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 1,155 m; within 80 km, extreme variations in elevation — a maximum elevation change of 2,883 m.

The land around Wum is covered by grassland (58%) and trees (31%) within 3 km, trees (58%) and grassland (40%) within 16 km, and trees (65%) and grassland (30%) within 80 km.

3 km
223 m
16 km
1,155 m
80 km
2,883 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Fundong 27 km · Bafut 34 km · Oku 43 km · Bamenda 48 km · Bali 55 km · Ndop 60 km · Kumbo 69 km · Nkambe 72 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
Roman Catholic 33%Muslim 31%Protestant 27%animist 1%

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 Wum (6.3833°, 10.0667°, elevation 1,055 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).