Cacuso weather in September

In September, Cacuso sees average daytime highs of 30°C and overnight lows near 17°C, with 47 mm of rain across 10.8 wet days and about 11.9 hours of daylight. It is the 3rd-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 30°C through the month. The sky is clear or mostly clear about 36% of the time in September, and the air most often feels comfortable.

Daylight stretches from about 11 h 48 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Cacuso's 5th-clearest and 2nd-windiest month. For the whole year in context, see Cacuso's year-round climate.

Daytime high
30°
3rd warmest
Overnight low
17°
4th coldest
Rainfall
47 mm
10.8 wet days
Daylight
11 h 54 min
5:53 AM – 5:50 PM
Cloud cover
51%
5th clearest
Wind
9 km/h
2nd windiest
Solar energy
5.71 kWh/m²
Travel score
5.2
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Day-to-day highs hold fairly steady near 30°C through the month.

A typical September day in Cacuso reaches about 30°C in the afternoon and slips back to 17°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 27°C and 32°C. Set against its neighbours, September runs on par with August and about 1°C warmer than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13016
23016
33016
43016
53016
63016
73016
83017
93017
103017
113017
123017
133017
143017
153017
163017
173017
183017
193017
202917
212917
222917
232917
242917
252917
262917
272917
282917
292918
302918

Cacuso weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 19°8113.312.55.6
Feb28° / 19°8312.312.35.2
Mar28° / 19°16120.112.14.4
Apr28° / 19°13419.711.84.5
May29° / 18°163.411.66.4
Jun30° / 16°00.111.57.1
Jul30° / 15°0011.56.8
Aug30° / 15°41.111.76.4
Sep30° / 17°4710.811.95.2
Oct28° / 18°13721.712.24.2
Nov27° / 19°17123.212.44.2
Dec27° / 19°12318.412.55.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 36% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 31% of September, with mostly cloudy or overcast conditions the remaining 33%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18119
28020
38020
47921
57921
67723
77723
87525
97525
107327
117228
127129
137030
146931
156832
166733
176634
186535
196436
206337
216238
226139
235941
245941
255743
265743
275545
285545
295347
305248

Chance of precipitation in September

Any precipitation

Cacuso gets around 47 mm of rain over 10.8 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 36% and peaks near 57% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
111
212
313
414
515
616
718
820
922
1024
1126
1228
1331
1433
1536
1639
1741
1843
1945
2047
2149
2251
2352
2453
2554
2655
2755
2856
2956
3057

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

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

By dew point, September lands in the comfortable band about 47% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
11770130
21671130
31471150
41371160
51172170
61071190
7971200
8870220
9768250
10667270
11565300
12562330
13459370
14357400
15353440
16249480
17146530
18142570
19139591
20035641
21032671
22029701
23026731
24023752
25020782
26018793
27016804
28015805
29013816
30012808

Wind in September

Winds average 9 km/h in September.

Across September, daily wind ranges from about 8 km/h on the calmest days to 9 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
19calm
29calm
39calm
49calm
59calm
69calm
79calm
89calm
99calm
109calm
119calm
129calm
139calm
149calm
159calm
169calm
179calm
189calm
199calm
208calm
218calm
228calm
238calm
248calm
258calm
268calm
278calm
288calm
298calm
308calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 48 min at the start of September to 12 h 06 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 18 minutes over September. Sunrise moves from 6:02 AM to 5:44 AM, and sunset from 5:51 PM to 5:49 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:025:51
211.86:025:51
311.86:015:51
411.86:005:51
511.96:005:51
611.95:595:51
711.95:595:51
811.95:585:51
911.95:575:51
1011.95:575:50
1111.95:565:50
1211.95:555:50
1311.95:555:50
1411.95:545:50
1511.95:545:50
1611.95:535:50
1712.05:525:50
1812.05:525:50
1912.05:515:49
2012.05:505:49
2112.05:505:49
2212.05:495:49
2312.05:485:49
2412.05:485:49
2512.05:475:49
2612.05:475:49
2712.05:465:49
2812.15:455:49
2912.15:455:49
3012.15:445:49

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.71 kWh/m².

For context, solar energy here swings from a low near 5.2 kWh/m² to a high of 5.74 kWh/m² in February across the year — September's 5.71 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.7Bright
25.7Bright
35.7Bright
45.7Bright
55.7Bright
65.7Bright
75.7Bright
85.7Bright
95.7Bright
105.7Bright
115.7Bright
125.7Bright
135.7Bright
145.7Bright
155.7Bright
165.7Bright
175.7Bright
185.7Bright
195.7Bright
205.7Bright
215.7Bright
225.7Bright
235.7Bright
245.7Bright
255.7Bright
265.7Bright
275.6Bright
285.6Bright
295.6Bright
305.6Bright
Planning a trip in September

Hazard calendar for Cacuso

In seasonPeak

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

Cacuso'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 Cacuso?

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

5.2
Sightseeing
6th-best month of the year
6.9
Beach & pool
5th-best month of the year

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

What to pack for Cacuso in September

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

In September, Cacuso sees daytime highs around 30°C and nights near 17°C. Pack light clothes. Worth having: rain gear and sun protection. About 11 days see rain.

light clothesrain gearsun protection

UV index in Cacuso in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 11 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Cacuso peaks around March 13 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 12 at about 8 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 13UV 15Aug 12UV 8
UV index (midday)Level
Jan15Extreme
Feb15Extreme
Mar15Extreme
Apr14Extreme
May10Extreme
Jun9Very high
Jul9Very high
Aug8Very high
Sep11Extreme
Oct13Extreme
Nov12Extreme
Dec13Extreme

Air quality in Cacuso 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 Cacuso is worst in June — around 176 µg/m³ PM2.5 (very unhealthy), about 17.6× the cleanest month (April, 10 µg/m³).

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

0306090120150180JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateVery unhealthyUnhealthyModerateGoodJun 23176 µg/m³Dec 1010 µg/m³
PM2.5 (µg/m³)Level
Jan11Good
Feb12Good
Mar11Good
Apr10Good
May27Moderate
Jun176Very unhealthy
Jul176Very unhealthy
Aug82Unhealthy
Sep35Poor
Oct18Moderate
Nov10Good
Dec10Good
Location & terrain

Where is Cacuso?

Cacuso sits at 9.4°S, 15.7°E, 1,068 m above sea level, in Angola. The nearest listed city is Bailundo, 32 km away.

CangandalaCazomboSanta ClaraN'dalatandoGolungo Alto

Topography around Cacuso

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

Within 3 km, the terrain around Cacuso has only modest variations in elevation — a maximum elevation change of 87 m around an average of 1,066 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 278 m; within 80 km, large variations in elevation — a maximum elevation change of 1,136 m.

The land around Cacuso is covered by grassland (54%) within 3 km, grassland (46%) and shrubs (35%) within 16 km, and grassland (57%) and trees (24%) within 80 km.

3 km
87 m
16 km
278 m
80 km
1,136 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Bailundo 32 km · Lucala 57 km · Malanje 67 km · Cangandala 85 km · Cazombo 87 km · Santa Clara 92 km · N'dalatando 93 km · Golungo Alto 112 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 Cacuso (-9.421°, 15.7467°, elevation 1,068 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).