Rustenburg weather in September

In September, Rustenburg sees average daytime highs of 27°C and overnight lows near 13°C, with 14 mm of rain across 1.8 wet days and about 11.8 hours of daylight. It is the 7th-warmest and 9th-wettest month of the year here.

Highs climb over the month, from about 26°C in the first days to 28°C by the end. The sky is clear or mostly clear about 77% 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 Rustenburg's 5th-clearest and 2nd-windiest month. For the whole year in context, see Rustenburg's year-round climate.

Daytime high
27°
7th warmest
Overnight low
13°
5th coldest
Rainfall
14 mm
1.8 wet days
Daylight
11 h 54 min
6:10 AM – 6:01 PM
Cloud cover
23%
5th clearest
Wind
10 km/h
2nd windiest
Solar energy
6.07 kWh/m²
Travel score
8.4
out of 10

Rustenburg is South African city, town and mine.

Density
1,323/km²
people per km²
Founded
1851

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 26°C in the first days to 28°C by the end.

A typical September day in Rustenburg reaches about 27°C in the afternoon and slips back to 13°C overnight — a 14°C spread between the day's warmth and the night's chill. On most days the high lands between 21°C and 31°C. Set against its neighbours, September runs about 4°C warmer than August and about 1°C cooler than October.

10°20°30°151015202530
Avg high (°C)Avg low (°C)
12511
22511
32611
42611
52611
62611
72612
82612
92612
102712
112712
122712
132712
142713
152713
162713
172713
182713
192713
202713
212713
222814
232814
242814
252814
262814
272814
282814
292814
302814

Rustenburg weather by month

How September compares with the rest of the year at a glance. September is the 7th-warmest and 9th-wettest month here — the current month is highlighted below.

MonthHigh / Low (°C)Rainfall (mm)Wet daysDaylight (hours)Travel score
Jan29° / 19°9414.113.45.2
Feb29° / 18°8911.812.95.4
Mar27° / 17°7010.412.26.6
Apr25° / 13°335.811.47.9
May23° / 172.310.88.8
Jun20° / 71.310.48.5
Jul20° / 30.610.68.6
Aug23° / 71.211.19.1
Sep27° / 13°141.811.88.4
Oct28° / 15°497.512.66.6
Nov29° / 17°7411.313.35.6
Dec29° / 18°11114.713.65.2

Cloud cover in September

ClearMostly clearPartly cloudyMostly cloudyOvercast

The sky is clear or mostly clear about 77% of the time in September.

Beyond those clear spells, partly cloudy skies cover about 10% of September, with mostly cloudy or overcast conditions the remaining 13%. Skies tend to cloud over as the month goes on.

0%25%50%75%100%151015202530
Clearer (%)Cloudier (%)
1928
2919
3919
4919
5919
6919
79010
89010
98911
108911
118812
128812
138713
148713
158614
168614
178614
188515
198515
208515
218515
228515
238515
248515
258515
268515
278416
288416
298416
308416

Chance of precipitation in September

Any precipitation

Rustenburg gets around 14 mm of rain over 1.8 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 7% and peaks near 14% on the wettest days. The odds climb toward the end of the month.

0%10%20%30%151015202530
Rain chance (%)
16
26
36
46
56
66
76
86
96
106
116
126
136
146
156
166
176
186
196
206
216
227
237
248
259
2610
2711
2812
2913
3014

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 99% of days. It rarely turns muggy — the humid and sticky bands barely register.

0%25%50%75%100%151015202530
Dry (%)Comfortable (%)
11000
21000
31000
41000
51000
61000
71000
81000
91000
101000
111000
121000
131000
141000
151000
161000
171000
181000
191000
201000
211000
22991
23991
24982
25982
26973
27964
28955
29955
30946

Wind in September

Winds average 10 km/h in September.

Across September, daily wind ranges from about 9 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
19calm
29calm
39calm
49calm
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 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 6:27 AM to 5:54 AM, and sunset from 5:55 PM to 6:07 PM.

12 AM4 AM8 AM12 PM4 PM8 PM12 AM151015202530
Daylight (h)Sunrise (AM)Sunset (PM)
111.56:275:55
211.56:265:55
311.56:245:56
411.56:235:56
511.66:225:56
611.66:215:57
711.66:205:57
811.66:195:58
911.76:185:58
1011.76:175:59
1111.76:165:59
1211.76:145:59
1311.86:136:00
1411.86:126:00
1511.86:116:00
1611.96:106:01
1711.96:096:01
1811.96:086:02
1911.96:066:02
2012.06:056:03
2112.06:046:03
2212.06:036:03
2312.06:026:04
2412.16:016:04
2512.16:006:05
2612.15:586:05
2712.15:576:05
2812.25:566:06
2912.25:556:06
3012.25:546:07

Solar energy in September

Daily solar energy (kWh/m²)

Average shortwave solar energy reaching the ground each day in September, about 6.07 kWh/m².

For context, solar energy here swings from a low near 3.92 kWh/m² to a high of 6.8 kWh/m² in December across the year — September's 6.07 kWh/m² falls in the middle.

0246151015202530
Solar energy (kWh/m²)Level
15.6Bright
25.7Bright
35.7Bright
45.7Bright
55.8Bright
65.8Bright
75.8Bright
85.9Bright
95.9Bright
105.9Bright
115.9Bright
126.0Bright
136.0Intense
146.0Intense
156.0Intense
166.1Intense
176.1Intense
186.1Intense
196.2Intense
206.2Intense
216.2Intense
226.2Intense
236.3Intense
246.3Intense
256.3Intense
266.3Intense
276.4Intense
286.4Intense
296.4Intense
306.4Intense
Planning a trip in September

Hazard calendar for Rustenburg

In seasonPeak

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

Rustenburg's rainy season runs November–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 Rustenburg?

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

8.4
Sightseeing
5th-best month of the year
8.4
Beach & pool
1st-best month of the year

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

What to pack for Rustenburg in September

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

In September, Rustenburg sees daytime highs around 27°C and nights near 13°C. Pack sun protection. Worth having: light clothes.

sun protectionlight clothes

UV index in Rustenburg 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 Rustenburg peaks around January 11 at about 14 (extreme) — sunscreen, a hat and midday shade are essential. It bottoms out near June 17 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 highExtremeJan 11UV 14Jun 17UV 5
UV index (midday)Level
Jan14Extreme
Feb13Extreme
Mar12Extreme
Apr9Very high
May6High
Jun5Moderate
Jul6High
Aug7Very high
Sep9Very high
Oct11Extreme
Nov12Extreme
Dec14Extreme

Air quality in Rustenburg 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 Rustenburg is worst in June — around 69 µg/m³ PM2.5 (unhealthy), about 5.0× the cleanest month (December, 14 µg/m³).

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

020406080JanFebMarAprMayJunJulAugSepOctNovDecModeratePoorUnhealthyPoorModerateJun 1869 µg/m³Dec 2114 µg/m³
PM2.5 (µg/m³)Level
Jan15Moderate
Feb22Moderate
Mar31Moderate
Apr46Poor
May62Unhealthy
Jun69Unhealthy
Jul66Unhealthy
Aug53Poor
Sep47Poor
Oct28Moderate
Nov17Moderate
Dec14Moderate
Location & terrain

Where is Rustenburg?

Rustenburg sits at 25.7°S, 27.2°E, 1,171 m above sea level, in South Africa. The nearest listed city is Marikana, 24 km away.

Topography around Rustenburg

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

Within 3 km, the terrain around Rustenburg has only modest variations in elevation — a maximum elevation change of 201 m around an average of 1,167 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 650 m; within 80 km, large variations in elevation — a maximum elevation change of 915 m.

The land around Rustenburg is covered by artificial surfaces (56%) and trees (21%) within 3 km, grassland (45%) within 16 km, and grassland (51%) and shrubs (22%) within 80 km.

3 km
201 m
16 km
650 m
80 km
915 m
treesshrubsgrasslandcroplandartificial surfacesbare terrain
September weather nearby: Marikana 24 km · Hartbeestfontein-A 37 km · Koster 41 km · Brits 54 km · Bagale 60 km · Hartbeespoort 63 km · Letlhabile 63 km · Krugersdorp 71 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 Rustenburg (-25.6676°, 27.2421°, elevation 1,171 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).