Cassanguidi weather in September

In September, Cassanguidi sees average daytime highs of 30°C and overnight lows near 21°C, with 99 mm of rain across 17.2 wet days and about 12 hours of daylight. It is the 5th-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 18% of the time in September, and the air most often feels muggy.

Daylight stretches from about 11 h 54 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Cassanguidi's 5th-clearest and 4th-windiest month. For the whole year in context, see Cassanguidi's year-round climate.

Daytime high
30°
5th warmest
Overnight low
21°
12th coldest
Rainfall
99 mm
17.2 wet days
Daylight
12 hours
5:30 AM – 5:28 PM
Cloud cover
65%
5th clearest
Wind
6 km/h
4th windiest
Solar energy
5.34 kWh/m²
Travel score
3.9
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 Cassanguidi reaches about 30°C in the afternoon and slips back to 21°C overnight — a 10°C spread between the day's warmth and the night's chill. On most days the high lands between 28°C and 33°C. Set against its neighbours, September runs about 2°C cooler than August and about 1°C warmer than October.

15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
13120
23120
33120
43120
53120
63120
73120
83120
93120
103120
113120
123121
133121
143021
153021
163021
173021
183021
193021
203021
213021
223021
233021
243021
253021
263021
273021
283021
293021
303021

How September really feels in Cassanguidi

Once humidity and wind are folded in, September averages 10 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
10
heat index over the day's high
Days feeling ≤ C
0
wind chill below the day's low

The story in September is heat — humidity pushes the afternoon "feels like" well above the raw temperature.

Cassanguidi weather by month

How September compares with the rest of the year at a glance. September is the 5th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 20°18924.912.43.5
Feb29° / 21°16121.712.23.5
Mar29° / 21°19525.212.13.3
Apr30° / 20°15820.611.83.7
May32° / 20°275.511.74.7
Jun32° / 18°40.811.64.9
Jul33° / 18°10.111.64.8
Aug32° / 20°265.711.84.5
Sep30° / 21°9917.2123.9
Oct29° / 20°15724.112.23.5
Nov28° / 20°20626.512.33.3
Dec28° / 20°22827.512.43.4

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 18% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 24% of September, with mostly cloudy or overcast conditions the remaining 58%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
15743
25545
35545
45347
55248
65149
75050
84852
94753
104555
114456
124456
134258
144258
154159
164060
173862
183862
193763
203763
213763
223664
233565
243466
253466
263367
273367
283367
293169
303169

Chance of precipitation in September

Any precipitation

Cassanguidi gets around 99 mm of rain over 17.2 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 56% and peaks near 70% on the wettest days. The odds climb toward the end of the month.

0%20%40%60%80%151015202530
Rain chance (%)
138
240
341
443
545
647
748
850
951
1053
1154
1255
1356
1457
1558
1659
1759
1860
1961
2061
2162
2262
2363
2464
2565
2666
2767
2868
2969
3070

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 83% of days. Sticky, muggy-or-worse air turns up on roughly 86% of them.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)Muggy (%)Oppressive (%)
14925620
24924630
33822670
43821680
52819710
62718730
72717740
81615771
91614781
101513801
111411831
121410832
13139852
14138862
15127873
16126883
17126874
18015904
19014905
20014905
21013915
22003916
23002926
24002926
25002926
26002917
27001927
28001927
29001918
30001918

Wind in September

Winds average 6 km/h in September.

Across September, daily wind ranges from about 6 km/h on the calmest days to 6 km/h at its breeziest. It stays fairly steady from day to day.

0246810151015202530
Wind speed (km/h)Feels
16calm
26calm
36calm
46calm
56calm
66calm
76calm
86calm
96calm
106calm
116calm
126calm
136calm
146calm
156calm
166calm
176calm
186calm
196calm
206calm
216calm
226calm
236calm
246calm
256calm
266calm
276calm
286calm
296calm
306calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 54 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 12 minutes over September. Sunrise moves from 5:39 AM to 5:22 AM, and sunset from 5:30 PM to 5:26 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.95:395:30
211.95:385:30
311.95:385:30
411.95:375:30
511.95:375:30
611.95:365:29
711.95:365:29
811.95:355:29
911.95:345:29
1011.95:345:29
1111.95:335:29
1211.95:335:29
1311.95:325:28
1411.95:315:28
1512.05:315:28
1612.05:305:28
1712.05:305:28
1812.05:295:28
1912.05:295:27
2012.05:285:27
2112.05:275:27
2212.05:275:27
2312.05:265:27
2412.05:265:27
2512.05:255:27
2612.05:255:26
2712.05:245:26
2812.05:235:26
2912.15:235:26
3012.15:225:26

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.34 kWh/m².

For context, solar energy here swings from a low near 4.92 kWh/m² to a high of 5.63 kWh/m² in July across the year — September's 5.34 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.3Bright
25.3Bright
35.3Bright
45.3Bright
55.3Bright
65.3Bright
75.3Bright
85.3Bright
95.3Bright
105.3Bright
115.3Bright
125.3Bright
135.3Bright
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

Hazard calendar for Cassanguidi

In seasonPeak

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

Cassanguidi'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 Cassanguidi?

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

3.9
Sightseeing
5th-best month of the year
5.6
Beach & pool
5th-best month of the year

September is a weaker month for outdoor sightseeing in Cassanguidi.

What to pack for Cassanguidi in September

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

In September, Cassanguidi sees daytime highs around 30°C and nights near 21°C. Pack light clothes and rain gear. Worth having: sun protection. About 17 days see rain.

light clothesrain gearsun protection

UV index in Cassanguidi 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 Cassanguidi peaks around March 12 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near August 13 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighExtremeMar 12UV 15Aug 13UV 5
UV index (midday)Level
Jan14Extreme
Feb15Extreme
Mar15Extreme
Apr13Extreme
May10Very high
Jun7Very high
Jul7Very high
Aug5Moderate
Sep11Extreme
Oct13Extreme
Nov12Extreme
Dec12Extreme

Air quality in Cassanguidi 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 Cassanguidi is worst in June — around 186 µg/m³ PM2.5 (very unhealthy), about 18.6× the cleanest month (November, 10 µg/m³).

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

0306090120150180JanFebMarAprMayJunJulAugSepOctNovDecModerateUnhealthyVery unhealthyUnhealthyModerateGoodJun 20178 µg/m³Nov 2110 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb17Moderate
Mar12Moderate
Apr12Good
May64Unhealthy
Jun186Very unhealthy
Jul142Unhealthy
Aug86Unhealthy
Sep32Moderate
Oct16Moderate
Nov10Good
Dec11Good
Location & terrain

Where is Cassanguidi?

Cassanguidi sits at 7.5°S, 21.3°E, 758 m above sea level, in Angola. The nearest listed city is Dundo, 55 km away.

LucapaTshikapaCuiloKanangaLueboMwene-Ditu

Topography around Cassanguidi

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

Within 3 km, the terrain around Cassanguidi has only modest variations in elevation — a maximum elevation change of 133 m around an average of 733 m above sea level; within 16 km, only modest variations in elevation — a maximum elevation change of 223 m; within 80 km, significant variations in elevation — a maximum elevation change of 463 m.

The land around Cassanguidi is covered by grassland (73%) within 3 km, grassland (53%) and trees (33%) within 16 km, and grassland (44%) and trees (37%) within 80 km.

3 km
133 m
16 km
223 m
80 km
463 m
treesshrubsgrasslandartificial surfacesbare terrainwater
September weather nearby: Dundo 55 km · Chitato 66 km · Lucapa 121 km · Tshikapa 131 km · Cuilo 213 km · Kananga 215 km · Luebo 237 km · Mwene-Ditu 243 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 Cassanguidi (-7.4837°, 21.3034°, elevation 758 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).