Mbombela weather in September

In September, Mbombela sees average daytime highs of 25°C and overnight lows near 12°C, with 34 mm of rain across 6.6 wet days and about 11.8 hours of daylight. It is the 7th-warmest and 8th-wettest month of the year here.

Day-to-day highs hold fairly steady near 25°C through the month. The sky is clear or mostly clear about 62% of the time in September, and the air most often feels dry.

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 Mbombela's 5th-clearest and 1st-windiest month. For the whole year in context, see Mbombela's year-round climate.

Daytime high
25°
7th warmest
Overnight low
12°
5th coldest
Rainfall
34 mm
6.6 wet days
Daylight
11 h 54 min
5:55 AM – 5:46 PM
Cloud cover
36%
5th clearest
Wind
6 km/h
1st windiest
Solar energy
5.21 kWh/m²
Travel score
7.8
out of 10

Mbombela is city in Mpumalanga, South Africa.

Density
1,517/km²
people per km²
Founded
1905

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 25°C through the month.

A typical September day in Mbombela reaches about 25°C in the afternoon and slips back to 12°C overnight — a 13°C spread between the day's warmth and the night's chill. On most days the high lands between 18°C and 32°C. Set against its neighbours, September runs about 2°C warmer than August and on par with October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12511
22511
32511
42511
52511
62511
72511
82511
92512
102512
112512
122512
132512
142512
152512
162512
172512
182512
192512
202513
212513
222513
232513
242513
252513
262513
272513
282513
292513
302513

Mbombela 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
Jan27° / 18°15517.513.45.3
Feb27° / 18°13414.812.95.6
Mar27° / 17°1071412.26.2
Apr25° / 14°538.411.47.4
May24° / 11°193.510.88.7
Jun22° / 92.310.48.6
Jul21° / 122.610.68.4
Aug23° / 173.811.18.5
Sep25° / 12°346.611.87.8
Oct25° / 14°7113.312.66.4
Nov26° / 16°12216.313.25.5
Dec27° / 17°15218.413.65.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 62% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 11% of September, with mostly cloudy or overcast conditions the remaining 28%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
18119
28119
38119
48020
58020
67921
77921
87822
97822
107723
117525
127525
137426
147327
157327
167228
177129
187129
197030
207030
216931
226832
236832
246634
256634
266436
276436
286238
296238
306139

Chance of precipitation in September

Any precipitation

Mbombela gets around 34 mm of rain over 6.6 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 22% and peaks near 32% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%40%151015202530
Rain chance (%)
114
214
315
415
516
616
717
817
918
1018
1119
1220
1320
1421
1521
1621
1722
1822
1923
2024
2124
2225
2326
2427
2528
2629
2729
2830
2931
3032

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 77% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)Humid (%)
19280
29280
39190
49190
590100
689110
789110
888120
987130
1086140
1185150
1284160
1383170
1482180
1580191
1679201
1778211
1876231
1975241
2073261
2170282
2269292
2367312
2465323
2563343
2661354
2760364
2858375
2956386
3055396

Wind in September

Winds average 6 km/h in September, the windiest month of the year.

Across September, daily wind ranges from about 6 km/h on the calmest days to 7 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
177calm
187calm
197calm
207calm
217calm
227calm
237calm
247calm
257calm
267calm
277calm
287calm
297calm
307calm

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 6:12 AM to 5:39 AM, and sunset from 5:40 PM to 5:52 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:125:40
211.56:105:40
311.56:095:41
411.56:085:41
511.66:075:42
611.66:065:42
711.66:055:42
811.66:045:43
911.76:035:43
1011.76:025:44
1111.76:015:44
1211.85:595:44
1311.85:585:45
1411.85:575:45
1511.85:565:46
1611.95:555:46
1711.95:545:46
1811.95:535:47
1911.95:515:47
2012.05:505:48
2112.05:495:48
2212.05:485:48
2312.05:475:49
2412.15:465:49
2512.15:455:50
2612.15:445:50
2712.15:425:50
2812.25:415:51
2912.25:405:51
3012.25:395:52

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 5.21 kWh/m².

For context, solar energy here swings from a low near 3.71 kWh/m² to a high of 5.83 kWh/m² in January across the year — September's 5.21 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.0Bright
25.0Bright
35.0Bright
45.0Bright
55.1Bright
65.1Bright
75.1Bright
85.1Bright
95.1Bright
105.1Bright
115.2Bright
125.2Bright
135.2Bright
145.2Bright
155.2Bright
165.2Bright
175.2Bright
185.2Bright
195.3Bright
205.3Bright
215.3Bright
225.3Bright
235.3Bright
245.3Bright
255.3Bright
265.3Bright
275.3Bright
285.3Bright
295.3Bright
305.3Bright
Planning a trip in September

Hazard calendar for Mbombela

In seasonPeak

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

Mbombela's rainy season runs October–March, 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 Mbombela?

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

7.8
Sightseeing
5th-best month of the year
7.0
Beach & pool
1st-best month of the year

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

What to pack for Mbombela in September

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

In September, Mbombela sees daytime highs around 25°C and nights near 12°C. Worth packing: light clothes and sun protection. About 7 days see rain.

light clothessun protection

UV index in Mbombela in September

LowModerateHighVery highExtreme

Clear-sky midday UV in September peaks around 9 (very high — sun protection essential). The full-year curve, shaded by WHO exposure level, is below.

Under clear skies, the midday UV index in Mbombela peaks around December 22 at about 13 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 23 at about 5 (high).

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

025710JanFebMarAprMayJunJulAugSepOctNovDecExtremeVery highHighVery highExtremeDec 22UV 13Jun 23UV 5
UV index (midday)Level
Jan13Extreme
Feb13Extreme
Mar12Extreme
Apr8Very high
May6High
Jun5High
Jul5High
Aug7Very high
Sep9Very high
Oct10Extreme
Nov12Extreme
Dec13Extreme

Air quality in Mbombela 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 Mbombela is worst in July — around 52 µg/m³ PM2.5 (poor), about 3.9× the cleanest month (December, 13 µg/m³).

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

0204060JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorModerateJul 1850 µg/m³Dec 2014 µg/m³
PM2.5 (µg/m³)Level
Jan20Moderate
Feb18Moderate
Mar24Moderate
Apr26Moderate
May34Moderate
Jun37Poor
Jul52Poor
Aug43Poor
Sep34Moderate
Oct23Moderate
Nov30Moderate
Dec13Moderate
Location & terrain

Where is Mbombela?

Mbombela sits at 25.5°S, 31.0°E, 658 m above sea level, in South Africa. The nearest listed city is White River, 16 km away.

Topography around Mbombela

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

Within 3 km, the terrain around Mbombela has significant variations in elevation — a maximum elevation change of 354 m around an average of 709 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 895 m; within 80 km, very significant variations in elevation — a maximum elevation change of 2,053 m.

The land around Mbombela is covered by trees (49%) and artificial surfaces (35%) within 3 km, trees (48%) and grassland (28%) within 16 km, and grassland (45%) and trees (36%) within 80 km.

3 km
354 m
16 km
895 m
80 km
2,053 m
treesshrubsgrasslandcroplandartificial surfaces
September weather nearby: White River 16 km · Tekwane 18 km · Barberton 36 km · Matsulu 39 km · Sabie 46 km · Schoemansdal 60 km · Mkhuhlu 61 km · Hlanganani 61 km

South Africa travel facts

Travel advisory
Level 2
Exercise Increased Caution
Power plugs
Type C / M / N
230 V · 50 Hz
Prices
≈ 41% of US
price level, 2025
GDP per capita
$6,598
2025
Happiness
5.0 / 10
World Happiness, 2025
Safe drinking water
68%
of population, 2024
Homicide rate
43.7
per 100k, 2022
Road deaths
22.2
per 100k/yr, 2019
Income group
Upper middle
World Bank
English
Very high
EF EPI 602
Religion
Christian 86%or other traditional African religions 5%nothing in particular 5%Muslim 2%

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 Mbombela (-25.4751°, 30.9693°, elevation 658 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).