Bailundo weather in September

In September, Bailundo sees average daytime highs of 30°C and overnight lows near 17°C, with 47 mm of rain across 11.4 wet days and about 11.9 hours of daylight. It is the 2nd-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 Bailundo's 5th-clearest and 2nd-windiest month. For the whole year in context, see Bailundo's year-round climate.

Daytime high
30°
2nd warmest
Overnight low
17°
4th coldest
Rainfall
47 mm
11.4 wet days
Daylight
11 h 54 min
5:52 AM – 5:49 PM
Cloud cover
51%
5th clearest
Wind
9 km/h
2nd windiest
Solar energy
5.81 kWh/m²
Travel score
4.9
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 Bailundo 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 28°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
43017
53017
63017
73017
83017
93017
103017
113017
123017
133017
143017
153017
163017
173017
183017
193017
203017
213017
223017
233017
243017
253017
263018
272918
282918
292918
302918

Bailundo weather by month

How September compares with the rest of the year at a glance. September is the 2nd-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 19°7413.412.55.6
Feb28° / 19°7912.312.35.1
Mar28° / 19°14920.112.14.4
Apr28° / 19°12619.911.84.6
May29° / 18°133.211.66.6
Jun29° / 15°00.111.57.2
Jul30° / 15°0011.56.9
Aug30° / 16°41.311.76.2
Sep30° / 17°4711.411.94.9
Oct29° / 18°1412412.23.9
Nov27° / 19°16623.512.44.2
Dec27° / 18°11718.812.55.0

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 32% of September, with mostly cloudy or overcast conditions the remaining 32%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18119
28119
38119
48020
57921
67822
77723
87624
97525
107426
117327
127129
137129
146931
156931
166733
176733
186535
196535
206436
216238
226139
236139
245941
255842
265743
275644
285545
295446
305347

Chance of precipitation in September

Any precipitation

Bailundo gets around 47 mm of rain over 11.4 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 38% and peaks near 64% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%151015202530
Rain chance (%)
113
213
314
415
516
617
719
820
922
1024
1126
1229
1331
1434
1537
1639
1742
1844
1947
2049
2151
2254
2355
2457
2559
2660
2761
2862
2963
3064

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 46% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)
12862100
22762110
32563120
42364130
52165140
62065150
71865170
81665190
91564210
101364230
111262260
121160290
13958330
14856360
15753400
16650440
17447481
18444511
19341551
20238591
21135631
22132661
23129682
24027712
25024733
26022753
27020764
28018775
29017767
30016768

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
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 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 6:01 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)
111.86:015:50
211.86:015:50
311.86:005:50
411.85:595:50
511.85:595:50
611.95:585:50
711.95:585:50
811.95:575:50
911.95:565:49
1011.95:565:49
1111.95:555:49
1211.95:545:49
1311.95:545:49
1411.95:535:49
1511.95:535:49
1611.95:525:49
1712.05:515:49
1812.05:515:49
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
2612.05:465:48
2712.05:455:48
2812.15:445:48
2912.15:445:48
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 5.81 kWh/m² — the sunniest month for solar.

For context, solar energy here swings from a low near 5.16 kWh/m² to a high of 5.81 kWh/m² in September across the year — September's 5.81 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
15.8Bright
25.8Bright
35.8Bright
45.8Bright
55.8Bright
65.8Bright
75.8Bright
85.8Bright
95.8Bright
105.8Bright
115.8Bright
125.8Bright
135.8Bright
145.8Bright
155.8Bright
165.8Bright
175.8Bright
185.8Bright
195.8Bright
205.8Bright
215.8Bright
225.8Bright
235.8Bright
245.8Bright
255.8Bright
265.8Bright
275.8Bright
285.8Bright
295.8Bright
305.8Bright
Planning a trip in September

Hazard calendar for Bailundo

In seasonPeak

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

Bailundo's rainy season runs February–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 Bailundo?

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

4.9
Sightseeing
8th-best month of the year
6.7
Beach & pool
5th-best month of the year

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

What to pack for Bailundo in September

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

In September, Bailundo 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 Bailundo 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 Bailundo 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 Bailundo 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 Bailundo 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 Bailundo?

Bailundo sits at 9.6°S, 16.0°E, 1,101 m above sea level, in Angola. The nearest listed city is Cacuso, 32 km away.

LucalaSanta ClaraMussendeCazomboN'dalatando

Topography around Bailundo

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

Within 3 km, the terrain around Bailundo has only modest variations in elevation — a maximum elevation change of 90 m around an average of 1,099 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 228 m; within 80 km, large variations in elevation — a maximum elevation change of 920 m.

The land around Bailundo is covered by trees (47%), grassland (32%) and shrubs (21%) within 3 km, grassland (45%) and trees (29%) within 16 km, and grassland (47%) and trees (32%) within 80 km.

3 km
90 m
16 km
228 m
80 km
920 m
treesshrubsgrasslandcroplandwater
September weather nearby: Cacuso 32 km · Malanje 38 km · Cangandala 53 km · Lucala 88 km · Santa Clara 92 km · Mussende 104 km · Cazombo 116 km · N'dalatando 123 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 Bailundo (-9.575°, 15.9944°, elevation 1,101 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).