Barra do Dande weather in September

In September, Barra do Dande sees average daytime highs of 23°C and overnight lows near 21°C, with 2 mm of rain across 0.6 wet days and about 12 hours of daylight. It is the 10th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 22°C in the first days to 24°C by the end. The sky is clear or mostly clear about 41% of the time in September, and the air most often feels muggy.

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 Barra do Dande's 5th-clearest and 4th-windiest month. For the whole year in context, see Barra do Dande's year-round climate.

Daytime high
23°
10th warmest
Overnight low
21°
3rd coldest
Rainfall
2 mm
0.6 wet days
Daylight
12 hours
6:02 AM – 5:59 PM
Cloud cover
47%
5th clearest
Wind
12 km/h
4th windiest
Solar energy
4.55 kWh/m²
Travel score
8.5
out of 10

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 22°C in the first days to 24°C by the end.

A typical September day in Barra do Dande reaches about 23°C in the afternoon and slips back to 21°C overnight — a 2°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 24°C. Set against its neighbours, September runs about 1°C warmer than August and about 2°C cooler than October.

15°20°25°30°151015202530
Avg high (°C)Avg low (°C)
12221
22221
32221
42221
52221
62221
72321
82321
92321
102321
112321
122321
132321
142321
152321
162321
172321
182321
192322
202322
212322
222322
232322
242422
252422
262422
272422
282422
292422
302422

How September really feels in Barra do Dande

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.

Barra do Dande weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan27° / 25°375.712.46.9
Feb28° / 26°456.912.36.3
Mar28° / 26°6610.212.15.5
Apr28° / 26°7712.111.85.7
May26° / 24°41.111.68.2
Jun24° / 22°0011.59.1
Jul22° / 20°0011.68.6
Aug22° / 20°10.211.78.3
Sep23° / 21°20.6128.5
Oct25° / 23°82.112.28.0
Nov26° / 25°30612.47.1
Dec27° / 25°275.612.57.0

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 41% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 30% of September, with mostly cloudy or overcast conditions the remaining 29%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17129
27129
37129
47228
57228
67228
77228
87327
97228
107228
117228
127327
137228
147228
157228
167228
177228
187129
197030
207030
217030
227030
236931
246931
256931
266832
276832
286832
296832
306832

Chance of precipitation in September

Any precipitation

Barra do Dande gets around 2 mm of rain over 0.6 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 2% and peaks near 3% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
11
21
31
41
51
61
72
82
92
102
112
122
132
143
153
163
173
183
193
203
213
222
232
242
252
262
272
282
292
302

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 91% of days. Sticky, muggy-or-worse air turns up on roughly 97% of them.

0%25%50%75%100%151015202530
Humid (%)Muggy (%)Oppressive (%)
111890
210900
39910
48920
57930
66940
75950
85941
94951
104951
113961
123961
132971
142962
152962
161963
171963
181954
191945
201936
211927
221909
2318910
2418712
2518613
2608515
2708317
2808119
2907822
3007624

Wind in September

Winds average 12 km/h in September.

Across September, daily wind ranges from about 11 km/h on the calmest days to 13 km/h at its breeziest. It stays fairly steady from day to day.

05101520151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
512calm
612calm
712calm
812calm
912calm
1012calm
1112calm
1212calm
1312light breeze
1412light breeze
1512light breeze
1612light breeze
1712light breeze
1812light breeze
1912light breeze
2012light breeze
2113light breeze
2213light breeze
2313light breeze
2413light breeze
2513light breeze
2613light breeze
2713light breeze
2813light breeze
2913light breeze
3013light breeze

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 6:11 AM to 5:54 AM, and sunset from 6:01 PM to 5:58 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.86:116:01
211.86:116:01
311.96:106:01
411.96:096:01
511.96:096:01
611.96:086:01
711.96:086:01
811.96:076:01
911.96:066:00
1011.96:066:00
1111.96:056:00
1211.96:056:00
1311.96:046:00
1411.96:036:00
1511.96:036:00
1612.06:025:59
1712.06:025:59
1812.06:015:59
1912.06:005:59
2012.06:005:59
2112.05:595:59
2212.05:595:59
2312.05:585:59
2412.05:575:58
2512.05:575:58
2612.05:565:58
2712.05:565:58
2812.15:555:58
2912.15:545:58
3012.15:545:58

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 4.55 kWh/m².

For context, solar energy here swings from a low near 4.45 kWh/m² to a high of 5.55 kWh/m² in February across the year — September's 4.55 kWh/m² sits near the bottom.

024151015202530
Solar energy (kWh/m²)Level
14.5Bright
24.5Bright
34.5Bright
44.5Bright
54.5Bright
64.5Bright
74.5Bright
84.5Bright
94.5Bright
104.5Bright
114.5Bright
124.5Bright
134.5Bright
144.5Bright
154.6Bright
164.6Bright
174.6Bright
184.6Bright
194.6Bright
204.6Bright
214.6Bright
224.6Bright
234.6Bright
244.6Bright
254.6Bright
264.6Bright
274.6Bright
284.6Bright
294.6Bright
304.6Bright
Planning a trip in September

Is September a good time to visit Barra do Dande?

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

8.5
Sightseeing
3rd-best month of the year
6.6
Beach & pool
8th-best month of the year

September is one of the better times to visit Barra do Dande for general sightseeing. The water and warmth also suit a beach or pool day.

What to pack for Barra do Dande in September

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

In September, Barra do Dande sees daytime highs around 23°C and nights near 21°C. Worth packing: light clothes and sun protection.

light clothessun protection

Sea temperature near Barra do Dande in September

The nearest coast averages about 22°C in September — the other half of the beach question. The full-year curve and swim-comfort zones are below.

The sea offshore is warmest in March at about 28°C and coldest in August near 20°C.

The water stays above 20°C all year — warm enough for a swim any month.

20°25°30°JanFebMarAprMayJunJulAugSepOctNovDeccoolrefreshingwarmtropicalcomfortable to swim
Sea temperature (°C)Comfort
Jan26Warm
Feb28Warm
Mar28Warm
Apr27Warm
May25Warm
Jun22Refreshing
Jul21Refreshing
Aug20Refreshing
Sep22Refreshing
Oct24Warm
Nov26Warm
Dec26Warm

UV index in Barra do Dande 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 Barra do Dande peaks around March 14 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 10 at about 6 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeMar 14UV 15Aug 10UV 6
UV index (midday)Level
Jan14Extreme
Feb14Extreme
Mar15Extreme
Apr12Extreme
May9Very high
Jun7Very high
Jul6High
Aug6High
Sep10Very high
Oct12Extreme
Nov12Extreme
Dec12Extreme

Air quality in Barra do Dande 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 Barra do Dande is worst in July — around 43 µg/m³ PM2.5 (poor), about 2.3× the cleanest month (January, 19 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateJul 1842 µg/m³Jan 1719 µg/m³
PM2.5 (µg/m³)Level
Jan19Moderate
Feb21Moderate
Mar23Moderate
Apr26Moderate
May30Moderate
Jun38Poor
Jul43Poor
Aug40Poor
Sep31Moderate
Oct24Moderate
Nov20Moderate
Dec21Moderate
Location & terrain

Where is Barra do Dande?

Barra do Dande sits at 8.5°S, 13.4°E, 10 m above sea level, in Angola. The nearest listed city is Gama, 16 km away.

Topography around Barra do Dande

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

Within 3 km, the terrain around Barra do Dande has only modest variations in elevation — a maximum elevation change of 58 m around an average of 16 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 125 m; within 80 km, large variations in elevation — a maximum elevation change of 782 m.

The land around Barra do Dande is covered by water (44%) and grassland (39%) within 3 km, water (53%) and grassland (32%) within 16 km, and trees (34%), water (30%) and grassland (29%) within 80 km.

3 km
58 m
16 km
125 m
80 km
782 m
treesshrubsgrasslandartificial surfacesbare terrainwaterwetlandmangroves
September weather nearby: Gama 16 km · Panguíla 26 km · Cacuaco 34 km · Caxito 34 km · Kikolo 35 km · Mabubas 35 km · Sambizanga 37 km · Hoji ya Henda 38 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 Barra do Dande (-8.4718°, 13.3701°, elevation 10 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. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. 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).