Loanda weather in September

In September, Loanda sees average daytime highs of 29°C and overnight lows near 18°C, with 105 mm of rain across 7.8 wet days and about 11.9 hours of daylight. It is the 7th-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 50% of the time in September, and the air most often feels comfortable.

Daylight stretches from about 11 h 30 min at the start of September to 12 h 12 min by month's end. Set against the rest of the year, September is Loanda's 3rd-clearest and 2nd-windiest month. For the whole year in context, see Loanda's year-round climate.

Daytime high
29°
7th warmest
Overnight low
18°
5th coldest
Rainfall
105 mm
7.8 wet days
Daylight
11 h 54 min
7:31 AM – 7:23 PM
Cloud cover
45%
3rd clearest
Wind
11 km/h
2nd windiest
Solar energy
5.24 kWh/m²
Travel score
5.9
out of 10

Loanda is settlement in Brazil.

Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.

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 Loanda reaches about 29°C in the afternoon and slips back to 18°C overnight — a 11°C spread between the day's warmth and the night's chill. On most days the high lands between 22°C and 35°C. Set against its neighbours, September runs about 2°C warmer than August and about 1°C cooler than October.

10°20°30°40°151015202530
Avg high (°C)Avg low (°C)
12917
22917
32917
42918
52918
62918
72918
82918
92918
102918
112918
122918
132918
142918
152918
162918
172918
182918
192918
202918
212918
222918
232918
242919
252919
262919
272919
282919
292919
302919

How September really feels in Loanda

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.

Loanda weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan31° / 23°19820.213.33.3
Feb31° / 22°16617.412.83.5
Mar31° / 22°12915.112.24.1
Apr29° / 20°908.111.55.8
May26° / 17°1158.210.97.2
Jun25° / 16°856.910.67.6
Jul25° / 15°635.810.77.9
Aug27° / 16°645.511.27.4
Sep29° / 18°1057.811.95.9
Oct30° / 20°14913.412.54.5
Nov31° / 21°15313.613.14.2
Dec31° / 22°18517.113.43.6

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 50% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 12% of September, with mostly cloudy or overcast conditions the remaining 37%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
17426
27426
37228
47129
57030
67030
76931
86733
96733
106634
116535
126535
136436
146436
156436
166436
176238
186238
196238
206139
216040
225941
235842
245743
255545
265446
275347
285248
295149
305050

Chance of precipitation in September

Any precipitation

Loanda gets around 105 mm of rain over 7.8 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 26% and peaks near 37% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%50%151015202530
Rain chance (%)
119
219
320
420
521
621
722
822
922
1023
1123
1223
1324
1424
1524
1625
1725
1826
1927
2027
2128
2229
2330
2432
2533
2634
2735
2836
2937
3037

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 30% of days. Sticky, muggy-or-worse air turns up on roughly 18% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
135372260
234372270
333362370
433362380
532362390
632352490
7313524100
8303425110
9303326110
10293326120
11283227130
12273228130
13263129140
14253129140
15253030150
16243030160
17233030170
18222931180
19222931190
20212831200
21202831210
22192731221
23182730241
24172630251
25162630271
26152530282
27152429302
28142429312
29142329323
30132229343

Wind in September

Winds average 11 km/h in September.

Across September, daily wind ranges from about 10 km/h on the calmest days to 11 km/h at its breeziest. It stays fairly steady from day to day.

051015151015202530
Wind speed (km/h)Feels
111calm
211calm
311calm
411calm
511calm
611calm
711calm
811calm
911calm
1011calm
1111calm
1211calm
1311calm
1411calm
1511calm
1611calm
1711calm
1811calm
1911calm
2011calm
2111calm
2211calm
2311calm
2411calm
2511calm
2611calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 30 min at the start of September to 12 h 12 min by month's end. The lit band spans sunrise to sunset each day.

Days grow by about 42 minutes over September. Sunrise moves from 7:46 AM to 7:16 AM, and sunset from 7:18 PM to 7:27 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.57:467:18
211.67:457:19
311.67:447:19
411.67:437:19
511.67:427:20
611.67:417:20
711.77:407:20
811.77:397:20
911.77:387:21
1011.77:377:21
1111.87:367:21
1211.87:357:22
1311.87:347:22
1411.87:337:22
1511.87:327:23
1611.97:317:23
1711.97:307:23
1811.97:297:24
1911.97:287:24
2012.07:277:24
2112.07:267:25
2212.07:247:25
2312.07:237:25
2412.17:227:25
2512.17:217:26
2612.17:207:26
2712.17:197:26
2812.17:187:27
2912.27:177:27
3012.27:167:27

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.24 kWh/m².

For context, solar energy here swings from a low near 3.35 kWh/m² to a high of 6.24 kWh/m² in December across the year — September's 5.24 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.1Bright
25.1Bright
35.1Bright
45.1Bright
55.1Bright
65.1Bright
75.1Bright
85.2Bright
95.2Bright
105.2Bright
115.2Bright
125.2Bright
135.2Bright
145.3Bright
155.3Bright
165.3Bright
175.3Bright
185.3Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.4Bright
255.4Bright
265.4Bright
275.4Bright
285.4Bright
295.4Bright
305.4Bright
Planning a trip in September

Is September a good time to visit Loanda?

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

5.9
Sightseeing
5th-best month of the year
7.5
Beach & pool
2nd-best month of the year

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

What to pack for Loanda in September

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

In September, Loanda sees daytime highs around 29°C and nights near 18°C. Pack light clothes. Worth having: sun protection. About 8 days see rain.

light clothessun protection

UV index in Loanda in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 3. The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Loanda peaks around January 19 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near September 14 at about 4 (moderate).

The index reaches 3 or more — the level where the WHO recommends sun protection — in 11 months of the year.

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighModerateExtremeJan 19UV 15Sep 14UV 4
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar12Extreme
Apr10Very high
May7High
Jun6High
Jul5High
Aug8Very high
Sep3Moderate
Oct11Extreme
Nov12Extreme
Dec13Extreme

Air quality in Loanda 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 Loanda is worst in September — around 33 µg/m³ PM2.5 (moderate), about 5.2× the cleanest month (March, 6 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateGoodSep 1631 µg/m³Mar 146 µg/m³
PM2.5 (µg/m³)Level
Jan9Good
Feb7Good
Mar6Good
Apr8Good
May9Good
Jun9Good
Jul9Good
Aug13Moderate
Sep33Moderate
Oct14Moderate
Nov10Good
Dec7Good
Location & terrain

Where is Loanda?

Loanda sits at 22.9°S, 53.1°W, 464 m above sea level, in Brazil. The nearest listed city is Rosana, 39 km away.

Topography around Loanda

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

Within 3 km, the terrain around Loanda has only modest variations in elevation — a maximum elevation change of 126 m around an average of 432 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 238 m; within 80 km, significant variations in elevation — a maximum elevation change of 394 m.

The land around Loanda is covered by cropland (38%) and grassland (34%) within 3 km, cropland (44%) and grassland (41%) within 16 km, and cropland (41%) and grassland (38%) within 80 km.

3 km
126 m
16 km
238 m
80 km
394 m
treesgrasslandcroplandartificial surfaceswater
September weather nearby: Rosana 39 km · Taquarussu 53 km · Paranavaí 71 km · Nova Andradina 80 km · Tapejara 94 km · Umuarama 96 km · Cruzeiro do Oeste 96 km · Cianorte 99 km

Brazil travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / N
127 / 220 V · 60 Hz
Prices
≈ 46% of US
price level, 2025
GDP per capita
$10,713
2025
Happiness
6.6 / 10
World Happiness, 2025
Safe drinking water
89%
of population, 2024
Homicide rate
19.3
per 100k, 2023
Road deaths
16
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Low
EF EPI 482
Religion
Roman Catholic 57%Evangelical 27%none 9%other 4%

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 Loanda (-22.9231°, -53.1372°, elevation 464 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).