Virei weather in September

In September, Virei sees average daytime highs of 32°C and overnight lows near 16°C, with 0 mm of rain across 0.1 wet days and about 11.9 hours of daylight. It is the 10th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 32°C through the month. The sky is clear or mostly clear about 91% of the time in September, and the air most often feels dry.

Daylight stretches from about 11 h 42 min at the start of September to 12 h 06 min by month's end. Set against the rest of the year, September is Virei's 5th-clearest and 4th-windiest month. For the whole year in context, see Virei's year-round climate.

Daytime high
32°
10th warmest
Overnight low
16°
3rd coldest
Rainfall
0 mm
0.1 wet days
Daylight
11 h 54 min
6:05 AM – 6:00 PM
Cloud cover
13%
5th clearest
Wind
10 km/h
4th windiest
Solar energy
6.8 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 32°C through the month.

A typical September day in Virei reaches about 32°C in the afternoon and slips back to 16°C overnight — a 16°C spread between the day's warmth and the night's chill. On most days the high lands between 29°C and 35°C. Set against its neighbours, September runs about 1°C warmer than August and about 2°C cooler than October.

10°20°30°40°151015202530
Avg high (°C)Avg low (°C)
13115
23115
33115
43115
53115
63115
73115
83115
93215
103216
113216
123216
133216
143216
153216
163216
173216
183216
193216
203216
213216
223217
233217
243217
253217
263317
273317
283317
293317
303317

How September really feels in Virei

Once humidity and wind are folded in, September averages 13 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
13
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.

Virei weather by month

How September compares with the rest of the year at a glance. September is the 10th-warmest and 8th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan33° / 21°385.512.83.8
Feb33° / 21°558.212.53.6
Mar33° / 22°11014.612.13.2
Apr35° / 22°295.611.73.2
May35° / 19°00.111.33.7
Jun32° / 16°0011.15.3
Jul32° / 15°0011.25.8
Aug31° / 15°0011.56.1
Sep32° / 16°00.111.95.6
Oct34° / 19°61.612.44.1
Nov34° / 21°163.612.73.3
Dec33° / 20°325.512.93.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 91% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 4% of September, with mostly cloudy or overcast conditions the remaining 5%.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1973
2973
3964
4964
5955
6955
7955
8955
9955
10955
11955
12955
13955
14955
15955
16946
17946
18946
19955
20955
21955
22955
23955
24955
25955
26955
27955
28955
29964
30964

Chance of precipitation in September

Any precipitation

Virei gets around 0 mm of rain over 0.1 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 0% and peaks near 1% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
10
20
30
40
50
61
71
81
91
101
111
121
131
141
150
160
170
180
190
200
210
220
230
240
250
260
270
281
291
301

Humidity in September

DryComfortableHumidMuggyOppressiveMiserable

Most of September feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.

By dew point, September lands in the dry band about 64% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
183170
281190
380200
478220
577230
675250
774260
872280
971290
1069310
1168320
1267330
1366340
1464360
1562371
1661381
1760391
1859401
1957421
2056431
2155441
2254451
2354451
2453461
2552462
2651472
2752462
2852462
2952462
3052462

Wind in September

Winds average 10 km/h in September.

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

051015151015202530
Wind speed (km/h)Feels
110calm
210calm
310calm
410calm
510calm
610calm
710calm
810calm
910calm
1010calm
1110calm
1210calm
1310calm
1410calm
1510calm
1610calm
1710calm
1810calm
1910calm
2010calm
2110calm
2210calm
2310calm
2410calm
2510calm
2610calm
2710calm
2810calm
2910calm
3010calm

Sunrise & sunset in September

DaylightNight

Daylight runs from about 11 h 42 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 24 minutes over September. Sunrise moves from 6:17 AM to 5:54 AM, and sunset from 5:59 PM to 6:01 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.76:175:59
211.76:165:59
311.76:165:59
411.76:155:59
511.76:145:59
611.86:135:59
711.86:125:59
811.86:125:59
911.86:115:59
1011.86:105:59
1111.86:096:00
1211.96:086:00
1311.96:086:00
1411.96:076:00
1511.96:066:00
1611.96:056:00
1711.96:046:00
1811.96:036:00
1912.06:036:00
2012.06:026:00
2112.06:016:00
2212.06:006:00
2312.05:596:01
2412.05:596:01
2512.05:586:01
2612.15:576:01
2712.15:566:01
2812.15:556:01
2912.15:556:01
3012.15:546:01

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.8 kWh/m².

For context, solar energy here swings from a low near 5.24 kWh/m² to a high of 7.41 kWh/m² in November across the year — September's 6.8 kWh/m² falls in the middle.

02468151015202530
Solar energy (kWh/m²)Level
16.5Intense
26.5Intense
36.5Intense
46.5Intense
56.6Intense
66.6Intense
76.6Intense
86.6Intense
96.7Intense
106.7Intense
116.7Intense
126.7Intense
136.8Intense
146.8Intense
156.8Intense
166.8Intense
176.8Intense
186.8Intense
196.9Intense
206.9Intense
216.9Intense
227.0Intense
237.0Intense
247.0Intense
257.0Intense
267.0Intense
277.1Intense
287.1Intense
297.1Intense
307.2Intense
Planning a trip in September

Is September a good time to visit Virei?

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

5.6
Sightseeing
3rd-best month of the year
8.7
Beach & pool
3rd-best month of the year

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

What to pack for Virei in September

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

In September, Virei sees daytime highs around 32°C and nights near 16°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Virei 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 Virei peaks around January 18 at about 15 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 7 (very high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highExtremeJan 18UV 15Jun 23UV 7
UV index (midday)Level
Jan15Extreme
Feb14Extreme
Mar13Extreme
Apr11Extreme
May9Very high
Jun7Very high
Jul7Very high
Aug8Very high
Sep10Very high
Oct12Extreme
Nov13Extreme
Dec13Extreme

Air quality in Virei 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 Virei is worst in September — around 20 µg/m³ PM2.5 (moderate), about 1.9× the cleanest month (April, 11 µg/m³).

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

0102030JanFebMarAprMayJunJulAugSepOctNovDecModerateGoodModerateSep 2120 µg/m³Apr 1111 µg/m³
PM2.5 (µg/m³)Level
Jan14Moderate
Feb13Moderate
Mar11Good
Apr11Good
May15Moderate
Jun16Moderate
Jul19Moderate
Aug20Moderate
Sep20Moderate
Oct20Moderate
Nov16Moderate
Dec13Moderate
Location & terrain

Where is Virei?

Virei sits at 15.7°S, 12.9°E, 444 m above sea level, in Angola. The nearest listed city is Mossamedes, 104 km away.

MossamedesLubangoTômbuaCahamaCamucuioQuipungoHumbeXangongo

Topography around Virei

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

Within 3 km, the terrain around Virei has only modest variations in elevation — a maximum elevation change of 62 m around an average of 444 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 536 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,006 m.

The land around Virei is covered by shrubs (81%) within 3 km, shrubs (89%) within 16 km, and shrubs (73%) and bare terrain (22%) within 80 km.

3 km
62 m
16 km
536 m
80 km
2,006 m
treesshrubsgrasslandartificial surfacesbare terrain
September weather nearby: Mossamedes 104 km · Lubango 107 km · Tômbua 119 km · Cahama 158 km · Camucuio 182 km · Quipungo 198 km · Humbe 234 km · Xangongo 244 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 Virei (-15.727°, 12.9496°, elevation 444 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).