Karoi weather in September

In September, Karoi sees average daytime highs of 28°C and overnight lows near 16°C, with 3 mm of rain across 0.6 wet days and about 11.9 hours of daylight. It is the 3rd-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 27°C in the first days to 29°C by the end. The sky is clear or mostly clear about 84% 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 Karoi's 2nd-clearest and 2nd-windiest month. For the whole year in context, see Karoi's year-round climate.

Daytime high
28°
3rd warmest
Overnight low
16°
5th coldest
Rainfall
3 mm
0.6 wet days
Daylight
11 h 54 min
5:58 AM – 5:53 PM
Cloud cover
18%
2nd clearest
Wind
13 km/h
2nd windiest
Solar energy
6.73 kWh/m²
Travel score
8.0
out of 10

Karoi is human settlement.

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

Temperature in September

Average highAverage lowShaded bands: 10–90% of days

Highs climb over the month, from about 27°C in the first days to 29°C by the end.

A typical September day in Karoi reaches about 28°C in the afternoon and slips back to 16°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 25°C and 31°C. Set against its neighbours, September runs about 3°C warmer than August and about 2°C cooler than October.

10°15°20°25°30°35°151015202530
Avg high (°C)Avg low (°C)
12714
22714
32714
42714
52714
62715
72715
82815
92815
102815
112815
122815
132815
142816
152816
162816
172916
182916
192916
202916
212916
222917
232917
242917
252917
262917
272917
282917
292917
302917

Karoi weather by month

How September compares with the rest of the year at a glance. September is the 3rd-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan26° / 19°22323.712.94.4
Feb26° / 18°16620.812.64.6
Mar26° / 18°10215.612.15.8
Apr26° / 16°274.811.67.7
May24° / 13°41.111.28.9
Jun23° / 11°10.2119.0
Jul22° / 10°10.211.18.9
Aug25° / 12°00.111.49.3
Sep28° / 16°30.611.98.0
Oct30° / 19°122.412.46.2
Nov30° / 20°6710.612.85.1
Dec27° / 19°17221134.7

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 84% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 9% of September, with mostly cloudy or overcast conditions the remaining 8%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1946
2946
3946
4946
5946
6946
7946
8946
9937
10937
11937
12937
13937
14928
15928
16928
17928
18928
19928
20919
219010
229010
239010
249010
258911
268911
278911
288911
299010
309010

Chance of precipitation in September

Any precipitation

Karoi gets around 3 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 4% on the wettest days.

0%10%20%30%151015202530
Rain chance (%)
10
21
31
41
51
61
71
81
91
101
111
121
131
141
151
161
171
182
192
202
212
223
233
243
253
264
274
284
294
304

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 97% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
110000
210000
310000
410000
59910
69910
79910
89910
99910
109910
119910
129910
139910
149811
159811
169721
179721
189721
199721
209631
219631
229631
239541
249541
259451
269361
279361
289271
299181
309181

Wind in September

Winds average 13 km/h in September.

Across September, daily wind ranges from about 12 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
112calm
212light breeze
312light breeze
412light breeze
512light breeze
612light breeze
712light breeze
812light breeze
912light breeze
1013light breeze
1113light breeze
1213light breeze
1313light breeze
1413light breeze
1513light breeze
1613light breeze
1713light breeze
1813light breeze
1913light breeze
2013light 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 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 6:11 AM to 5:47 AM, and sunset from 5:51 PM to 5:55 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.76:115:51
211.76:105:51
311.76:095:51
411.76:085:51
511.76:085:51
611.76:075:52
711.86:065:52
811.86:055:52
911.86:045:52
1011.86:035:52
1111.86:035:52
1211.86:025:52
1311.96:015:52
1411.96:005:53
1511.95:595:53
1611.95:585:53
1711.95:575:53
1811.95:575:53
1912.05:565:53
2012.05:555:53
2112.05:545:53
2212.05:535:53
2312.05:525:54
2412.05:525:54
2512.15:515:54
2612.15:505:54
2712.15:495:54
2812.15:485:54
2912.15:475:54
3012.15:475:55

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.73 kWh/m².

For context, solar energy here swings from a low near 4.66 kWh/m² to a high of 7.12 kWh/m² in October across the year — September's 6.73 kWh/m² sits near the top of that range.

0246151015202530
Solar energy (kWh/m²)Level
16.4Intense
26.4Intense
36.4Intense
46.5Intense
56.5Intense
66.5Intense
76.5Intense
86.6Intense
96.6Intense
106.6Intense
116.6Intense
126.7Intense
136.7Intense
146.7Intense
156.7Intense
166.8Intense
176.8Intense
186.8Intense
196.8Intense
206.8Intense
216.8Intense
226.9Intense
236.9Intense
246.9Intense
256.9Intense
266.9Intense
276.9Intense
287.0Intense
297.0Intense
307.0Intense
Planning a trip in September

Hazard calendar for Karoi

In seasonPeak

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

Karoi's monsoon runs December–March, when most of the year's rain falls.

Monsoon
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec

Is September a good time to visit Karoi?

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

8.0
Sightseeing
5th-best month of the year
9.1
Beach & pool
1st-best month of the year

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

What to pack for Karoi in September

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

In September, Karoi sees daytime highs around 28°C and nights near 16°C. Pack light clothes and sun protection.

light clothessun protection

UV index in Karoi 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 Karoi peaks around January 18 at about 16 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 22 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 highExtremeJan 18UV 16Jun 22UV 8
UV index (midday)Level
Jan17Extreme
Feb15Extreme
Mar14Extreme
Apr12Extreme
May9Very high
Jun8Very high
Jul8Very high
Aug10Very high
Sep11Extreme
Oct12Extreme
Nov14Extreme
Dec14Extreme

Air quality in Karoi 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 Karoi is worst in September — around 38 µg/m³ PM2.5 (poor), about 6.6× the cleanest month (December, 6 µg/m³).

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

010203040JanFebMarAprMayJunJulAugSepOctNovDecGoodModerateModerateGoodSep 1437 µg/m³Dec 226 µg/m³
PM2.5 (µg/m³)Level
Jan7Good
Feb8Good
Mar8Good
Apr8Good
May9Good
Jun14Moderate
Jul19Moderate
Aug31Moderate
Sep38Poor
Oct25Moderate
Nov11Good
Dec6Good
Location & terrain

Where is Karoi?

Karoi sits at 16.8°S, 29.7°E, 1,259 m above sea level, in Zimbabwe. The nearest listed city is Chinhoyi, 82 km away.

ChinhoyiKaribaSiavongaChirunduMvurwiChegutuNortonMount Hampden

Topography around Karoi

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

Within 3 km, the terrain around Karoi has only modest variations in elevation — a maximum elevation change of 110 m around an average of 1,253 m above sea level; within 16 km, significant variations in elevation — a maximum elevation change of 278 m; within 80 km, large variations in elevation — a maximum elevation change of 1,041 m.

The land around Karoi is covered by grassland (51%) within 3 km, grassland (51%) and cropland (33%) within 16 km, and shrubs (44%) within 80 km.

3 km
110 m
16 km
278 m
80 km
1,041 m
treesshrubsgrasslandcroplandartificial surfaceswater
September weather nearby: Chinhoyi 82 km · Kariba 101 km · Siavonga 109 km · Chirundu 125 km · Mvurwi 126 km · Chegutu 154 km · Norton 160 km · Mount Hampden 168 km

Zimbabwe travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type D / G
220 V · 50 Hz
Prices
≈ 56% of US
price level, 2025
GDP per capita
$3,021
2025
Happiness
3.3 / 10
World Happiness, 2025
Safe drinking water
25%
of population, 2024
Homicide rate
6.8
per 100k, 2022
Road deaths
41.2
per 100k/yr, 2019
Income group
Lower middle
World Bank
English
Very high
EF EPI 602
Religion
Apostolic Sect 40%Pentecostal 17%Protestant 14%none 8%

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 Karoi (-16.8099°, 29.6925°, elevation 1,259 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).