Mussende weather in September

In September, Mussende sees average daytime highs of 29°C and overnight lows near 16°C, with 56 mm of rain across 10.7 wet days and about 11.9 hours of daylight. It is the 1st-warmest and 8th-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 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 Mussende's 5th-clearest and 5th-windiest month. For the whole year in context, see Mussende's year-round climate.

Daytime high
29°
1st warmest
Overnight low
16°
5th coldest
Rainfall
56 mm
10.7 wet days
Daylight
11 h 54 min
5:52 AM – 5:49 PM
Cloud cover
49%
5th clearest
Wind
8 km/h
5th windiest
Solar energy
6.03 kWh/m²
Travel score
5.6
out of 10

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 Mussende reaches about 29°C in the afternoon and slips back to 16°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 31°C. Set against its neighbours, September runs on par with August and about 2°C warmer than October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12915
22915
32915
42915
52915
62915
72915
82915
92915
102916
112916
122916
132916
142916
152916
162916
172916
182916
192916
202916
212916
222816
232816
242816
252816
262816
272816
282816
292816
302816

Mussende weather by month

How September compares with the rest of the year at a glance. September is the 1st-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan25° / 16°16919.412.55.0
Feb26° / 17°14416.212.35.1
Mar26° / 17°23523.312.14.4
Apr26° / 17°11916.311.85.5
May27° / 16°81.611.58.1
Jun27° / 14°10.211.48.9
Jul27° / 14°0011.48.7
Aug29° / 15°41.111.77.3
Sep29° / 16°5610.711.95.6
Oct27° / 16°19725.812.24.1
Nov25° / 16°25126.712.53.9
Dec25° / 16°22123.812.64.5

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 33% of September, with mostly cloudy or overcast conditions the remaining 31%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18416
28317
38317
48218
58119
68119
78020
88020
97822
107723
117624
127525
137426
147228
157129
167129
176931
186832
196634
206535
216337
226139
236040
245842
255743
265545
275446
285248
295050
304852

Chance of precipitation in September

Any precipitation

Mussende gets around 56 mm of rain over 10.7 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 36% and peaks near 67% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
113
213
314
415
516
617
718
819
921
1022
1124
1226
1328
1430
1532
1634
1736
1839
1942
2044
2147
2250
2352
2455
2557
2660
2762
2864
2966
3067

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 42% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
176231
274242
373252
471272
570282
667303
765323
862344
960364
1057385
1153416
1250437
1347458
1444479
15404911
16375013
17335215
18305317
19275320
20245323
21215326
22185329
23165232
24145135
25125038
26114842
2794645
2884448
2974251
3073954

Wind in September

Winds average 8 km/h in September.

Across September, daily wind ranges from about 7 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
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

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 5:43 AM, and sunset from 5:50 PM to 5:48 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:025:50
211.86:015:49
311.86:015:49
411.86:005:49
511.85:595:49
611.85:595:49
711.95:585:49
811.95:575:49
911.95:575:49
1011.95:565:49
1111.95:555:49
1211.95:555:49
1311.95:545:49
1411.95:535:49
1511.95:535:49
1611.95:525:49
1712.05:515:48
1812.05:515:48
1912.05:505:48
2012.05:495:48
2112.05:495:48
2212.05:485:48
2312.05:475:48
2412.05:475:48
2512.05:465:48
2612.05:455:48
2712.15:455:48
2812.15:445:48
2912.15:435:48
3012.15:435:48

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.03 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 5.38 kWh/m² to a high of 6.03 kWh/m² in September across the year — September's 6.03 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.1Intense
26.1Intense
36.1Intense
46.1Intense
56.1Intense
66.1Intense
76.1Intense
86.1Intense
96.1Intense
106.1Intense
116.0Intense
126.0Intense
136.0Intense
146.0Intense
156.0Intense
166.0Intense
176.0Intense
186.0Intense
196.0Intense
206.0Bright
216.0Bright
226.0Bright
236.0Bright
246.0Bright
256.0Bright
266.0Bright
276.0Bright
286.0Bright
296.0Bright
306.0Bright
Planning a trip in September

Hazard calendar for Mussende

In seasonPeak

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

Mussende'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 Mussende?

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

5.6
Sightseeing
5th-best month of the year
7.0
Beach & pool
5th-best month of the year

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

What to pack for Mussende in September

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

In September, Mussende sees daytime highs around 29°C and nights near 16°C. Pack light clothes and sun protection. Worth having: rain gear. About 11 days see rain.

light clothessun protectionrain gear

UV index in Mussende in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 12 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mussende peaks around March 14 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 11 at about 9 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeMar 14UV 16Aug 11UV 9
UV index (midday)Level
Jan16Extreme
Feb15Extreme
Mar16Extreme
Apr14Extreme
May10Extreme
Jun9Very high
Jul9Very high
Aug9Very high
Sep12Extreme
Oct13Extreme
Nov13Extreme
Dec14Extreme

Air quality in Mussende 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 Mussende is worst in July — around 184 µg/m³ PM2.5 (very unhealthy), about 22.1× the cleanest month (December, 8 µg/m³).

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

0306090120150180JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateUnhealthyVery unhealthyUnhealthyModerateGoodJul 18175 µg/m³Dec 148 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb10Good
Mar10Good
Apr9Good
May24Moderate
Jun96Unhealthy
Jul184Very unhealthy
Aug120Unhealthy
Sep40Poor
Oct16Moderate
Nov9Good
Dec8Good
Location & terrain

Where is Mussende?

Mussende sits at 10.5°S, 16.0°E, 1,350 m above sea level, in Angola. The nearest listed city is Santa Clara, 73 km away.

CangandalaBailundoMalanjeQuibalaCacusoAnduloCalulo

Topography around Mussende

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

Within 3 km, the terrain around Mussende has only modest variations in elevation — a maximum elevation change of 195 m around an average of 1,413 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 514 m; within 80 km, large variations in elevation — a maximum elevation change of 983 m.

The land around Mussende is covered by trees (34%), grassland (27%) and shrubs (25%) within 3 km, trees (52%) and grassland (31%) within 16 km, and trees (62%) and grassland (25%) within 80 km.

3 km
195 m
16 km
514 m
80 km
983 m
treesshrubsgrasslandcroplandartificial surfaces
September weather nearby: Santa Clara 73 km · Cangandala 93 km · Bailundo 104 km · Malanje 114 km · Quibala 116 km · Cacuso 125 km · Andulo 131 km · Calulo 136 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 Mussende (-10.5143°, 16.0199°, elevation 1,350 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).