Cuímba weather in September

In September, Cuímba sees average daytime highs of 28°C and overnight lows near 20°C, with 13 mm of rain across 4.1 wet days and about 12 hours of daylight. It is the 9th-warmest and 9th-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 3% of the time in September, and the air most often feels humid.

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 Cuímba's 5th-clearest and 2nd-windiest month. For the whole year in context, see Cuímba's year-round climate.

Daytime high
28°
9th warmest
Overnight low
20°
4th coldest
Rainfall
13 mm
4.1 wet days
Daylight
12 hours
5:57 AM – 5:55 PM
Cloud cover
76%
5th clearest
Wind
8 km/h
2nd windiest
Solar energy
4.29 kWh/m²
Travel score
6.6
out of 10

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 Cuímba reaches about 28°C in the afternoon and slips back to 20°C overnight — a 8°C spread between the day's warmth and the night's chill. On most days the high lands between 26°C and 30°C. Set against its neighbours, September runs about 1°C warmer than August and about 1°C cooler than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12719
22719
32719
42719
52819
62819
72819
82819
92819
102819
112819
122819
132819
142820
152820
162820
172820
182820
192820
202820
212820
222820
232820
242820
252820
262820
272820
282820
292820
302820

How September really feels in Cuímba

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.

Cuímba weather by month

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

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 21°17123.112.33.7
Feb30° / 21°12618.712.23.7
Mar30° / 21°16921.5123.5
Apr30° / 21°23024.811.93.2
May29° / 21°9916.711.74.7
Jun28° / 19°30.711.77.8
Jul27° / 17°10.111.78.0
Aug27° / 18°30.911.87.5
Sep28° / 20°134.1126.6
Oct29° / 21°10616.912.14.5
Nov29° / 21°23125.312.33.4
Dec29° / 21°2252612.33.5

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 3% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 13% of September, with mostly cloudy or overcast conditions the remaining 85%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
11783
21783
31783
41684
51585
61585
71585
81585
91585
101684
111585
121585
131585
141585
151684
161684
171684
181684
191684
201684
211684
221585
231585
241684
251684
261585
271585
281585
291585
301387

Chance of precipitation in September

Any precipitation

Cuímba gets around 13 mm of rain over 4.1 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 14% and peaks near 24% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
16
26
37
47
58
68
79
810
910
1011
1112
1212
1313
1413
1514
1614
1715
1816
1916
2017
2117
2217
2318
2418
2519
2620
2720
2822
2923
3024

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels humid — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the humid band about 57% of days. Sticky, muggy-or-worse air turns up on roughly 42% of them.

0%25%50%75%100%151015202530
Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
1383140
2383140
3283150
4282160
5281170
6279190
7178210
8176230
9174250
10171280
11168310
12165340
13064360
14061390
15058420
16055450
17052480
18049510
19046540
20044560
21042580
22041590
23039610
24038620
25037630
26036640
27035650
28033670
29032671
30031681

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 8 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
18calm
28calm
38calm
48calm
58calm
68calm
78calm
88calm
98calm
108calm
118calm
128calm
138calm
148calm
158calm
168calm
178calm
188calm
198calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

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 6:05 AM to 5:49 AM, and sunset from 5:58 PM to 5:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.96:055:58
211.96:045:58
311.96:045:57
411.96:035:57
511.96:035:57
611.96:025:57
711.96:025:57
811.96:015:56
911.96:015:56
1011.96:005:56
1111.96:005:56
1211.95:595:56
1311.95:585:55
1412.05:585:55
1512.05:575:55
1612.05:575:55
1712.05:565:55
1812.05:565:54
1912.05:555:54
2012.05:555:54
2112.05:545:54
2212.05:545:54
2312.05:535:53
2412.05:535:53
2512.05:525:53
2612.05:515:53
2712.05:515:53
2812.05:505:53
2912.05:505:52
3012.05:495:52

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.29 kWh/m² — the year's lowest.

For context, solar energy here swings from a low near 4.29 kWh/m² to a high of 5.34 kWh/m² in March across the year — September's 4.29 kWh/m² sits near the bottom.

012345151015202530
Solar energy (kWh/m²)Level
14.3Bright
24.3Bright
34.3Bright
44.3Bright
54.3Bright
64.3Bright
74.3Bright
84.3Bright
94.3Bright
104.3Bright
114.3Bright
124.3Bright
134.3Bright
144.3Bright
154.3Bright
164.3Bright
174.3Bright
184.3Bright
194.3Bright
204.3Bright
214.3Bright
224.3Bright
234.3Bright
244.3Bright
254.3Bright
264.3Bright
274.3Bright
284.3Bright
294.3Bright
304.3Bright
Planning a trip in September

Hazard calendar for Cuímba

In seasonPeak

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

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

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

Is September a good time to visit Cuímba?

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

6.6
Sightseeing
4th-best month of the year
7.2
Beach & pool
4th-best month of the year

September is a reasonable time to visit Cuímba for sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Cuímba in September

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

In September, Cuímba sees daytime highs around 28°C and nights near 20°C. Pack light clothes. About 4 days see rain.

light clothes

UV index in Cuímba 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 Cuímba peaks around March 15 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 9 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighExtremeMar 15UV 15Aug 9UV 6
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar15Extreme
Apr14Extreme
May8Very high
Jun8Very high
Jul7High
Aug6High
Sep10Extreme
Oct13Extreme
Nov12Extreme
Dec11Extreme

Air quality in Cuímba 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 Cuímba is worst in July — around 56 µg/m³ PM2.5 (unhealthy), about 5.4× the cleanest month (November, 10 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyPoorModerateGoodJul 2256 µg/m³Nov 2011 µg/m³
PM2.5 (µg/m³)Level
Jan13Moderate
Feb15Moderate
Mar14Moderate
Apr13Moderate
May24Moderate
Jun44Poor
Jul56Unhealthy
Aug55Poor
Sep38Poor
Oct16Moderate
Nov10Good
Dec12Moderate
Location & terrain

Where is Cuímba?

Cuímba sits at 6.1°S, 14.6°E, 536 m above sea level, in Angola. The nearest listed city is Mbanza Kongo, 45 km away.

Mbanza-NgunguKengeInkisiMatadiSongo

Topography around Cuímba

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

Within 3 km, the terrain around Cuímba has only modest variations in elevation — a maximum elevation change of 69 m around an average of 531 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 640 m; within 80 km, large variations in elevation — a maximum elevation change of 893 m.

The land around Cuímba is covered by grassland (70%) within 3 km, grassland (66%) and trees (23%) within 16 km, and grassland (68%) and trees (25%) within 80 km.

3 km
69 m
16 km
640 m
80 km
893 m
treesshrubsgrasslandcroplandartificial surfaces
September weather nearby: Mbanza Kongo 45 km · Maquela do Zombo 55 km · Kimpese 66 km · Mbanza-Ngungu 99 km · Kenge 114 km · Inkisi 120 km · Matadi 132 km · Songo 139 km

Angola travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / F
220 V · 50 Hz
Prices
≈ 35% of US
price level, 2025
GDP per capita
$3,129
2025
Happiness
3.8 / 10
World Happiness, 2017
Homicide rate
4.1
per 100k, 2016
Road deaths
26.1
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Very low
EF EPI 413
Religion
Roman Catholic 41%Protestant 38%none 12%other 9%

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 Cuímba (-6.1208°, 14.6209°, elevation 536 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).